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industrial desiccant dryer

desiccant dryer - all industrial manufacturers - videos

desiccant dryer - all industrial manufacturers - videos

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The cold regenerated adsorption dryers of the series HGO dry the compressed air with efficiency and reliability until a pressure dew point of -40 C ,and the version with HGL dew point of -70C. They ...

The cold regenerated adsorption dryers of the series HGO dry the compressed air with efficiency and reliability until a pressure dew point of -40 C ,and the version with HGL dew point of -70C. They ...

... disposable, inline desiccant dryer that removes all traces of water vapor, oil vapor and particulate. It is designed for intermittent and not continuous use applications. The DD10 Series is a mini disposable, ...

Double desiccant tower models, with an airflow rate from 50 to 150 m3/h, supply air at a dew point lower than 50C. The process air temperature can be set up to 200C (HT version). CUSTOMER ORIENTED SOLUTIONS: Precision: Electronic ...

... Dehumidifying Dryers have been designed around improved serviceability and increased energy efficiency to provide a global product solution. With material processing rates between 50 to 450 lbs/hr (22 to 205 kgs/hr), ...

Large Desiccant Port with Basket, Humidity Indicator and Two Way Valve This large desiccant port is fitted with a split level humidity indicator (30%/50%) and two way pressure relief valve with manual ...

CE Certificated Capacity (kg): 20~4000L High Preformance High Efficiency Low noise Higher Stability Description Benefits & Features Combine the three functions of Drying, Dehumidifying and Conveying into one. Also can ...

working conditions Rated inlet temperature 45 Rated working pressure: 0.4-1.0MPa Pressure drop: 0.021 MPa Pressure dew point:-20-40-70available Regeneration method: Heatless regeneration Regeneration air consumption 14.5% Adsorbent: ...

desiccant air dryer for compressed air | quincy compressor

desiccant air dryer for compressed air | quincy compressor

In heavy-duty industrial operations, water vapor in compressed air equipment can lead to premature failure, corrosion, frozen air lines, quality control issues and a range of other operational problems. A desiccant air dryer system purifies compressed air by absorbing moisture. You can find these systems in any industrial application in which reliable equipment and exceptional quality control is necessary.

Quincy Compressor manufactures a full line of desiccant air dryer systems. Our products provide air purification from -40F PDP down to -100F PDP. These dryers are built and designed to provide the smallest footprint possible while ensuring maximum performance. Quincy desiccant dryers have ASME and CRN designed pressure vessels standard. Also, standard with the desiccant dryers is a 2-year package warranty and a 5-year valve warranty.

Quincy QHD heatless desiccant dryers use a small portion of dried, compressed air to purge and regenerate the off-line tower. The QHD has been engineered to ensure optimal performance and efficiency in a range of different applications while keeping downtime to a minimum.

The QHD series of desiccant dryer systems includes 13 models that deliver between 230 and 3,400 CFM of clean, dry air at a pressure of 100 psig. All feature a heavy-duty steel base and dual tower configuration that regenerates automatically.

Under normal operation, air is forced upwards through the drying tower, where moisture and contaminants are removed and a small amount 15% of air is diverted downwards through the regeneration tower where it depressurizes the desiccant bed to ambient conditions. Overall velocities are kept below 50 feet/minute so that air remains in contact with the desiccant for a minimum of 4.5 seconds. The entire process follows a 6-10 minute NEMA cycle, which consists of three to five minutes of drying time, 2 minutes and 25 seconds to 4 minutes and 20 seconds of regeneration and 40 seconds of re-pressurization.

Like all our desiccant-type air dryers, the QHD heatless air dryer system includes high-quality components and is backed by a two-year comprehensive warranty. For details, download the product brochure or contact a Quincy rep directly.

The QHP series of heated desiccant dryers features a built-in heating system that regenerates the offline tower using half the amount of air as our heatless products. This translates to improved efficiency, less wear and lower operating costs overall.

Nine configurations are available that can deliver between 850 and 3,400 CFM of dry air at 100 psig. Key components include the same high-performance switching valve system found in the QHD and a heavy-duty steel base. From the ground up, the QHD has been designed to ensure long life and low maintenance requirements, even when operating at high temperatures.

Operation is similar to the QHD, with the distinction that purged air passes through a heater before beginning the regeneration process. Because the air is hotter, less is required to absorb moisture from the desiccant beads. Air is forced through the system at a maximum of 50 feet/second, with up to 5.5 seconds of desiccant contact time during the drying phase.

QHP industrial desiccant air dryers run on an eight-hour NEMA cycle. The drying phase lasts four hours, the heating phase two and a half hours, the cooling phase one hour and twenty minutes and the re-pressurizing phase 10 minutes.

The QHP is available with the optional Quincy MicroBurst Regeneration (MBR) system, the only full-load energy saver available for use with heated purge desiccant air dryers. The MBR cuts purge requirements in half and greatly reduces heater on time. When equipped with the Quincy MBR, our Heated Purge dryers use 50% less energy. ROI can be realized within five months depending on dryer size and local power costs.

Quincy QBP dryers combine heat with forced ambient air for regeneration. As a result, they have a lower purge requirement than both the QHD and QHP desiccant dryer systems. The QBP is available in 13 different configurations that can produce between 210 and 3,400 CFM of dry air at 100 psig.

After air has passed through the drying tower, a small amount is heated and blown down through the purge tower, where moisture is removed from the desiccant. The blower component improves the overall efficiency of this process, requiring less air to perform the same amount of work. Sophisticated electronic controls and regulators automate the cycle, making it worry- and maintenance-free. Average purge levels are kept to 1.75%.

For optimal performance, run the QBP blower purge desiccant dryer with a Quincy reciprocating or rotary screw compressor and Q-Sorb desiccant. Under normal conditions, Q-Sorb drying beads can provide up to three years of continuous operation.

The Quincy QMOD is one of our most advanced desiccant dryer systems. Like the QHD series of products, these compact dryers use a portion of dried compressed air to regenerate the offline tower. Their small footprint has been designed to save floor space without compromising performance or efficiency, making them ideal for use in a crowded lab or tight compressor room.

Use the QMOD dryer to remove moisture, aerosols and mist from a stream of compressed air. A 0.01 PPM polishing pre-filter removes large impurities, while the units specially designed purification cartridges contain a high-performance desiccant and after-filter that completely removes remaining water vapors.

15 available models accept input from NPT pipe sizes between and 1, at flow rates from eight to 365 SCFM. A sophisticated electronic diagnostic and control center puts cycle information and other useful tools right at your fingertips, keeping operation and maintenance safe and simple.

Install the QMOD air desiccant dryer horizontally or vertically for maximum flexibility. A true modular system, the QMOD can be counted on to deliver instrument-quality compressed air in practically any situation.

Desiccant air dryer systems consist of a pair of towers containing silica gel or another desiccant. Quincy machines use our proprietary Q-Sorb product, an enhanced formula derived from activated alumina that provides improved absorption, lower pressure drop and higher crush strength.

As air passes through the towers, water vapor clings to the desiccant, effectively stripping it from the air until a desired moisture content is met. We measure moisture in pressure dew point (PDP). PDP refers to the temperature it would be necessary to cool air to achieve the same amount of dryness. For example, in many process industry applications, a PDP of at least -40F is recommended. In other words, air is required to have the same moisture level it would have at -40F.

Desiccant air dryers work in conjunction with an industrial air compressor. Their dual tower design allows you to time drying operations to a standard NEMA cycle, in which the one tower regenerates (purges) while the other performs the drying function. This prolongs desiccant life and allows for continuous operation for extended periods.

A desiccant air dryer system is an important component of any industrial operation in which compressed air of a uniform quality is required. Most air dryers run off electrical power. Because they are for continuous use, however, they can represent a significant operating expense over time. Thats why its important to choose a machine from a manufacturer you can trust.

Quincy Compressors has been in business since 1920. Our products are designed to work together to provide acomplete compressed air solutionfor any heavy-duty or industrial application. Our current line of products includes heatless, heated purge, blower purge and modular desiccants.Contact a sales representative in your area for assistance.

mdh series desiccant air dryers - altec air

mdh series desiccant air dryers - altec air

The MDH Series Heatless Desiccant Air Dryers are one of our smallest desiccant air dryers. Its miniature, compact design is perfect for OEM applications and can be paired with small fractional horsepower air compressors.

This tool will help you size the perfect MDH Series Desiccant Air Dryer for your Compressor Output and Environmental Conditions. Simply enter the data & conditions and you'll be presented with the Part Number for the MDH Series Air Dryer that will work optimally for those conditions. We will also provide Part Numbers for the Filter Kits that were created to match that MDH Series Air Dryer perfectly.

buy an industrial desiccant air dryer | nigen

buy an industrial desiccant air dryer | nigen

NiGen desiccant dryers are specially-engineered for high-selectivity water and vapor removal from industrial process air. We provide desiccant dryers for a wide range of industrial applications which include:

Desiccant dryers use a drying agent (desiccant) with a high attraction for water to extract water vapor and moisture from process air. The most commonly used materials are hygroscopic (moisture-absorbing) substances such as silica gel, calcium sulfate, activated charcoal, and zeolite. Thousands of small beads of these substances are contained in the desiccant dryers in dual-tower structures. One tower will focus on extracting water from compressed air while the other regenerates the saturated desiccant. The purpose of this system is to increase the boost the efficiency of water vapor removal with minimal maintenance and supervision. No matter how large or complex your project, NiGen offers regenerative desiccant dryers that will meet your specific needs.

Desiccant dryers help you save on costs by maximizing productivity and avoiding moisture-related damage in your process systems. Water vapor or moisture in your system could cause corrosion, wear and tear, freezing, and false reports on pneumatic controls. Beyond the inconvenience of repairs and repair costs, these issues slow down your operations or even bring them to a halt. NiGen can help you save money by reducing downtime on your most crucial and important operations. We also offer round-the-clock technical support and expertise on all our products.

If you need an air compressor dryer in Houston, consider NiGen! Our range of air dryers are the ideal choice for vapor recovery from industrial process air. NiGen air dryers are portable and lightweight making them suitable for both offshore and onshore operations. We also have a wide range ofon-site nitrogen generators,nitrogen generator rentals,industrial air compressor rentals, and much more.

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desiccant dryers ten lessons learned | compressed air best practices

desiccant dryers ten lessons learned | compressed air best practices

The Compressed Air Challenge training material for our Fundamentals of Compressed Air Systems seminar briefly covers a number of types of air dryers. One type of dryer seen frequently across the world is the regenerative desiccant dryer. These dryers have a number of characteristics that can affect their cost of operation and the operating of the associated compressors and can therefore affect the efficiency of the complete compressed air system.

Regenerative desiccant type dryers use a porous desiccant that adsorbs the moisture by collecting it in its myriad pores, allowing large quantities of water to be retained by a relatively small quantity of desiccant. Desiccant types include silica gel, activated alumina, and molecular sieves. In some cases, more than one desiccant type can be used for special drying applications. In most of these cases, a larger particle size (1/4 or more) is used as a buffer zone at the inlet, while a smaller particle size desiccant (1/8 to 1/4) is used for final drying. Where very low dew points are required, molecular sieve desiccant is added as the final drying agent. The most common dew point rating for these dryers is -40. While this level may be needed for sensitive processes or instrumentation, this level of dryness in not normally needed in general manufacturing unless the pipes are exposed to freezing temperatures.

Normally the desiccant is contained in two separate towers. Compressed air to be dried flows through one tower, while the desiccant in the other is being regenerated (Figure 1). Regeneration is accomplished by reducing the pressure in the tower and passing purge air through the desiccant bed. The purge air may also be heated, either within the dryer or externally, to reduce the amount of purge air required. Heated purge air may also be supplied by a blower. Desiccant dryers all have a built-in regeneration cycle, which can be based upon time, dew point, bed moisture load or a combination of these.

All of these dryers have filtration on the inlet to keep water and oil from damaging and contaminating the desiccant. An additional filter on the outlet catches the desiccant dust that is generated from the constant movement of the desiccant beads against one another caused by flow of air through the dryer.

Compared to refrigerated air dryers the cost of operation of desiccant dryers is fairly expensive therefore their use should be carefully considered. Refrigerated dryers consume about 0.8 kW per 100 cfm of dryer rating including the compressor power required to compensate for the pressure differential across the dryer. Heatless desiccant dryers consume about 15 to 20 percent of their rating in purge air. This means 15 to 20 cfm of purge per 100 cfm dryer rating. If the compressed air is generated at an average specific power of 20 kW per 100 cfm at the compressor, the cost of the purge air is about 3 to 4 kW per 100 cfm of dryer nameplate rating. Add to this the cost for the pressure differential of the dryer and associated filters, and the cost becomes 3.5 to 4.5 kW per 100 cfm at full load. This is 4 to 6 times the cost of refrigerated dried air.

It is important to realize that the purge rating of an uncontrolled desiccant dryer is based on nameplate rating, not the amount of air flowing through it. The purge control is often simply an orifice or cracked open valve of some sort that allows a fixed flow of air from the pressurized side to the side being regenerated. The flow of air is not affected by the amount of air being dried in the air dryer unless there is some sort of dew point or moisture control. A properly sized dryer will be oversized to compensate for worst case conditions where excessive ambient and inlet temperatures are experienced at full load. Typically the average loading of the dryers is not at worst case conditions, however, meaning a typical dryer will often be running at average flows that are lower than its nameplate rating. If, for example, the flow in a 1,000 cfm fixed cycle air dryer is only half its rating or 500 cfm, the purge flow will still be 15 to 20% of the nameplate rating or 150 to 200 cfm. This would mean the real purge would now be 30 to 40% of the average flow. At one quarter load the purge flow would be 60% to 80% of the average flow.

If the dryer is operating on a fixed cycle with no dew point control and the associated compressor turns off for some reason, which stops the flow of compressed air through the dryer, the purge will often continue to be fed from other system compressors. This flow allows the purge cycle to continue uninterrupted, but once the desiccant has been regenerated an uncontrolled dryer will continue to consume purge air for no reason and waste significant amounts of compressed air even though there is no air flowing through it. In this case the efficiency of the dryer is very poor. If multiple dryers exist in this condition during low load periods the waste can be extreme.

When auditing a compressed air system it is very common to find that uncontrolled desiccant dryers represent the biggest use of compressed air in the plant. This is especially true for lightly loaded systems where the compressor and dryer are much larger than the actual average loading due to size mismatch or load characteristics. Recently an audit at a grain processing facility showed a very high flow of air when the plant was in not in production. Much effort was expended in looking for leaks and drainage only to find that the non-productive load was caused by a misadjusted air heatless air dryer. Repair of the situation prevented the purchase of a larger compressor.

The adjustment of the purge flow in a dryer is important. Often this is a manual adjustment that is done during a specific part of the dryer cycle. Many times the adjustment is simply the position of a ball valve based on the pressure reading on a gauge. Over time the ball valve can become misadjusted and the gauge can go out of calibration. The purge exhaust ports can plug causing a back pressure that can reduce the purge flow. Poor adjustment can lead to purge flows that are much higher than the rating of the dryer. Since there is typically no way of directly measuring the purge flow this wasteful higher flow is rarely detected. Regular testing is a good practice.

Recently, a seed cleaning plant purchased a used desiccant air dryer that used a fixed orifice style of purge flow metering. Once installed, the plant started experiencing pressure problems on a 10 minute cycle. An auditor was called in to assess the situation and found pressure dips every time the air dryer purged on its left side. Further investigation revealed that the orifice for the left side had been lost while the dryer was disassembled for transport.

Due to numerous reasons some systems operate higher than 100 psi, sometimes much higher. If the dryer uses a fixed orifice, this higher pressure will cause the dryer to consume more that rated purge. Dryers running at higher pressures actually need less than rated purge. Manufacturers can supply proper orifices for various rated pressures to reduce this wasteful flow for pressures other than 100 psi thereby saving purge cost.

Some dryer designs have integrated check valves internal to the dryer. When this check valve is located downstream of the point where the purge flow is redirected to the regenerating side the air from the plant cannot get back to the dryer to maintain purge flow if the associate compressor unloads. This can have energy savings benefit if the associated compressor turns off, however, because the associated compressor now must exclusively feed the dryer purge this can cause compressor control issues. Where the dryer has a check valve and there is no large storage receiver between the compressor and the dryer a load unload compressor will rapid cycle. As soon as the compressor tries to unload the dryer will rob the compressor of its control signal, the check valve preventing back flow, and the compressor will immediately have to load up again. This can continue with the compressor inefficiently rapidly loading and unloading, even when there is no real system load on the compressor.

With a focus on Demand-Side Optimization, compressed air dryers, filters, condensate management, tanks, piping and pneumatic technologies are profiled. How to ensure system reliability, while reducing pressure drop and demand, is explored through System Assessment case studies.

One way to ensure the purge flow stays at near 15 to 20 % of the actual dryer flow is to use dew point or loading controls on the dryer. These controls adjust the purge time of the dryer to ensure that all the desiccant is saturated before the flow of purge starts to regenerate the desiccant. This method of control sometimes has its problems as the typical designs allow the desiccant to both sides to saturate fully before the flow of purge is turned on. Since both sides need regeneration there are sometimes a cluster of multiple purge cycles that can cause additional air demand. This has prompted at least one manufacturer to put moisture probes part way up the towers to detect then the moisture front reaches a certain level, thereby leaving some active desiccant remaining to assist in the regeneration. Others simply use a watchdog timer that initiates a purge cycle every so many minutes no matter what. This type of system has limited turn down for light loads.

Of course the dew point control sensor is only as good as its calibration. At one paper plant the compressed air system operators checked and recorded the dew point value of their blower purge dryer every 2 hours. No matter what, the reading was a constant -120 F, never changing. An auditor pointed out that there was water was pouring out of the dryer after-filter, yet the control said -120 F. The sensor had become flooded and failed to the low reading, a test of the calibration would have prevented expensive downstream contamination of instrumentation.

A big plus for heated blower style dryers is that they are purgeless dryers, they use heated ambient air to regenerate the desiccant, not expensive compressed air. But the desiccant in the dryer remains hot after the regeneration cycle, and hot desiccant does not dry the air. Since there isnt enough time to cool naturally in a standard four hour cycle, the desiccant is most often cooled using a flow of compressed air, not exactly purge, but a consumption of air just the same. Most manufacturers of this type of dryer rate this cooling flow at 2% of the nameplate rating of the dryer. In actual fact this 2% is often 8% over one hour of the 4 hour dryer cycle, which averages to 2%. This 8% can have major implications if there is not enough compressor capacity online to feed its flow.

The chart below shows the notching effect caused by this flow at a fertilizer plant. The flow caused low pressure in the facility every four hours unless a 125 HP compressor was kept running. This particular dryer was oversized at 4,000 cfm for future load, however, it was only drying the capacity of two 750 cfm air dryers. The cooling losses in this dryer were excessive. The dryer also had a glitch in its operating software that caused its cooling flow to operate for 1.5 to 2 hours rather than one hour if the heating cycle finished early due to low moisture load, increasing the compressed air waste even more.

The temperature of the inlet air affects the moisture loading on desiccant air dryers. For every 20 degrees F drop in temperature the moisture content roughly reduces by half. Heatless desiccant air dryers are not affected by this reduction in moisture loading, so they dont save if the air temperatures are reduced. For very light loading this lack of moisture can actually cause heatless dryers to perform poorly. Heat regenerated dryers that are dew point controlled; on the other hand, reduce their purge flow in proportion to moisture loading. This can be used as an energy efficiency measure. In fact at least one manufacturer sells a hybrid dryer that uses this effect by placing a refrigerated air dryer on the front of the dryer and a heated desiccant style on the back end.

Because the desiccant is sensitive to oil and free water contamination there is usually a series of filters on the inlet and outlet of these dryers. Typically a particulate and coalescing combination is placed on the inlet and particulate on the outlet. When auditing these dryers this is a location that represents typically one of the biggest pressure differentials in the whole system. Where 5 to 7 psi exists across the dryer filter combination about 2 to 3 percent more compressor power is required to overcome this resistance.

Further to this the pressure differential can negatively affect compressor control and can cause rapid cycling of load/unload compressors, which can drive them to inefficient operating points on their curve, costing even more energy.

Selection of dual inlet filters can reduce this affect. Since pressure differential across filters varies with the square of the flow, the selection of parallel filters reduces the pressure differential to one quarter of the original value for a 75% reduction.

used desiccant dryer for sale. atlas-copco equipment & more | machinio

used desiccant dryer for sale. atlas-copco equipment & more | machinio

* Unique design of insulated desiccant rotor system. * Efficient and energy saving design of exclusive rotation mechanism for the rotor & desiccant chambers. * Easy-load design for desiccant replacement. * No pne...

Thoroughly dry hot air can be used for fully removing the humidify of plastic granules and to improve the molded part quality quite substantially. Features Moisture is effectively reduced from saturation point t...

The duplex desiccant dryer package is designed to produce low dew point well below the requirements mandated by NFPA 99. It includes pre and after filters which remove 0.01 size partials from the medical air str...

Desiccant compressed air dryers , also known as regenerative dryers, move compressed air through moisture absorbing desiccant materials. These dryersalternate betweentwo compartments, one to dry out the compr...

2008 160cfm adsorption air dryer, with dewpoint control and display, smart compact unit, complete with PD120 and DD 120 filters, single phase supply -40C dewpoint, came in with a 37kW oil free compressor so in cl...

top reasons why you should choose an air compressor desiccant dryer - nerdynaut

top reasons why you should choose an air compressor desiccant dryer - nerdynaut

Compressed air dryers that use desiccants to get rid of moisture work well in a variety of situations. Compared to refrigerated air dryers, they can draw out more water vapor molecules from the air. In addition, they can perform well at a low dew point and are essential for high air quality in an industrial setting. Here is more information on why you should choose an air compressor desiccant dryer.

Although refrigerated air dryers can successfully take away water vapor from compressed air, they rely on a lower dew point. On the other hand, desiccant air dryers can perform in colder temperatures. Therefore they are more suitable for industrial processes that are highly sensitive to moisture.

With different types of air dryers on the market, it can be difficult to narrow down the most suitable one for your industrial needs. Super Dry Systems design, engineer, and manufacture air compressor desiccant dryers that can be implemented within an extensive range of industrial processes. They have over 25 years of experience in the air drying systems market and can match your needs with the best possible industrial equipment. Visit www.superdrysystems.com for more information.

Desiccant is a type of material that absorbs moisture extremely well. Desiccants contain hygroscopic properties that attract and retain water. Using these materials, air dryers can create a moisture-free environment. There are many types of desiccant materials. This includes calcium sulfate, calcium chloride, aluminosilicate minerals, silica gel, and activated charcoal. The latter two are common in these types of dryers, and they are chosen depending on unique industrial needs.

Most people are familiar with silica gel. Small silica gel packets are often included in dried food packages and other non-edible goods too. The moisture in the air that flows through the silica gel sticks to the surface. The water then absorbs into the silica gel until it becomes fully saturated.

Activated carbon is incredibly porous and features a huge surface area that can retain moisture. Rather than silica gel, activated carbon is resilient and can be reused and regenerated. Activated carbon desiccant dryers with two towers are able to regenerate in one tower while the other continues to absorb moisture in compressed air. This regeneration process goes on continuously, making activated carbon desiccant dryers more efficient to run.

As mentioned previously, air dryers with two towers can regenerate once one tower has become fully saturated with water. The tower that isnt in operation then goes into regeneration mode and begins to regenerate by using hot air, dry compressed air, or by using special drying systems.

Air compressor dryers that use desiccant materials can help you achieve ultra-dry air, including ISO quality classes 1, 2, and 3. They can also be used in below-freezing conditions for intermittent and continuous flow applications.

desiccant dryer for gas & air | van air systems in erie, pa

desiccant dryer for gas & air | van air systems in erie, pa

Dry-O-Lite, the industry-leading deliquescent desiccant, is a chemical drying agent specifically formulated for Van Air Systems single tower compressed air dryers and natural gas pipeline dryers. Dry-O-Lite is a dense hygroscopic tablet that absorbs water vapor from streams of compressed air or gas. The surface of the desiccant tablet dissolves slowly, forming a brine solution which drops from the surface. The tablet continuously dissolves, or deliquesces, until the desiccant is fully consumed. In a properly sized D-series Compressed Air Dryer or Pipeline Dryer, Dry-O-Lite will establish a relative humidity of 55%, which equates to a dew point approximately 20F lower

SP is a leading deliquescent desiccant formulated primarily for the dehydration of natural gas for use in Van Air Systems Pipeline Dryers when the gas temperature is below 80F. SP is a dense hygroscopic tablet that absorbs water vapor. The surface of the desiccant tablet dissolves slowly, forming a brine solution which drops from the surface. The tablet continuously dissolves, or deliquesces, until the desiccant is fully consumed. Van Air Systems deliquescent desiccants, including SP, are non-toxic and fully water soluble. In a properly sized Pipeline Dryer, SP will establish a relative humidity of 33%, which equates to a dew

10BF is the most effective deliquescent desiccant from Van Air Systems. Formulated primarily for the dehydration of natural gas and for use in Van Air Systems Pipeline Dryers, 10BF is a dense hygroscopic tablet that absorbs water vapor. The surface of the desiccant tablet dissolves slowly, forming a brine solution which drops from the surface. The tablet continuously dissolve, or deliquesces, until the desiccant is fully consumed. Van Air Systems deliquescent desiccants, including 10BF, are non-toxic and fully water soluble. In a properly sized Pipeline Dryer, 10BF will establish a relative humidity of 13%, which equates to a dew point

Natural gas or process gas dehydration at low pressures, low flow rates, and / or low temperatures can be very difficult. Most conventional salt-type absorbent desiccants are unable to adequately dry gas to low water content under these conditions. 4UF was developed to meet low dew point requirements when other desiccants or glycols cannot. 4UF can be used by itself or in combination with other grades of deliquescent desiccant, such as SP or 10BF Desiccant. In some applications, consumption is optimized when the process gas flows through the lower grade desiccant prior to the highly absorbent 4UF. *4UF is also

Activated alumina is an aluminum oxide bead with an extremely porous structure and high surface area-to-mass ratio. Activated alumina has a wide variety of applications, including compressed air and gas drying. In compressed air and gas drying applications, activated alumina will achieve dew points -40F to -100F, depending on the dryer design. In compressed air desiccant dryers, a 1/8 (2-5 mm) activated alumina bead is most commonly used. The 1/4 (5-10 mm) activated alumina bead is typically used as a pre-bed for supporting large desiccant beds or as a buffer for silica gel beds. The 3/16 (5-10 mm) bead is

Molecular sieve is highly porous sodium aluminosilicate bead for the adsorption of a wide range of liquids and gases. It has a fixed pore size according to the material specification. Van Air Systems offers molecular sieve with a 4 angstrom pore size. Because of its high comparative cost, molecular sieve is normally used for special process applications. In compressed air and gas drying applications, molecular sieve will deliver pressure dew point to -100F, depending on dryer design and operating conditions.

Silica gel is a spherical bread consisting of 97% silica and 3% alumina with a highly porous surface and a strong affinity for adsorbing water. Silica gel is also applied as a selective adsorbent for a wide-range of hydrocarbons, C02, siloxanes, sulfur, and many other compounds. Because silica gel fractures in the presence of liquid water, it is often protected with a pre-bed of activated alumina. In air and gas drying applications, dew points of -40F and lower can be achieved with silica gel.

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