April 2008
Supplemental Drying System extends life and improves performance
Toms River, NJ (April 7, 2008) – Leading gas conditioning products manufacturer Perma Pure has introduced a cost effective product for extending the life and improving the performance of gas analysis equipment. The SDS™-Series Supplemental Drying System eliminates the formation of damaging acid mists and improves chiller performance in sample conditioning systems used in refineries, chemical plants and other environmental monitoring settings.
With the ability to lower a sample’s dew point from +4°C to below -15°C, the SDS-Series dryers can reduce total moisture content by an additional 80 percent. This dew point reduction eliminates the formation of acid mists, including downstream SO3 formation in high SO2 services. Acid mist corrosion is minimized, extending analyzer life and ensuring accuracy. Lower moisture content sample streams also improve the sensitivity of infrared measurements.
SDS-Series dryers are available for single (up to 10 lpm) or dual (up to 5 lpm each) samples streams. The dryers can be added on to compensate for undersized chillers, rather than replacing with new systems. They can also be used as the primary gas drying device, providing the sample is non-condensing at ambient temperature. The NEMA 12 rated enclosure is corrosion resistant for long service life.
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March 2008
Toms River, NJ (March 14, 2008) – Leading gas conditioning products manufacturer Perma Pure will display products for environmental monitoring at the EPRI CEM User Group Conference and Exhibit 2008, May 14-16 at the Nashville Convention Center (Nashville, Tenn.). The company will display its sample preparation technology for environmental analyzers and continuous emissions monitoring systems, including the Model 45 Dilution Probe and Model 4500 Flow Controller.
Perma Pure’s gas probes, dryers, filters, ammonia scrubbers, chillers and complete sampling systems prevent contaminants and corrosive elements from entering the sample gas stream and damaging expensive analytical equipment. The company’s Model 45 dilution extraction probes eliminate the need for conditioning systems and high-cost heated lines by reducing water vapor content in sample gas. The out-of-stack system dilutes the sample gas 10 to 250 times with dry air. To remotely manage and monitor the dilution probe, the Model 4500 Flow Controller directs pressure and flow and allows users to set dilution ratios. A relay board facilitates switching flows between combustion and calibration gases.
For more information on their complete line of gas conditioning products, visit Perma Pure’s booth at EPRI CEM 2008.
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February 2008
Toms River, NJ (February 5, 2008) – Leading gas conditioning products manufacturer Perma Pure will display its FC™-Series fuel cell humidifiers along with its MD™-Series and PD™-Series gas dryers at the Energy exposition of Hannover Messe 2008, April 21-25 in Hannover, Germany. The company’s proprietary Nafion® technology, on display in Hall 13, booth G43/4, provides efficient water management and gas sample preparation.
Perma Pure’s FC-Series compact humidifiers provide durable, self-contained humidification for mobile, stationary power and portable power applications. By recovering water from the fuel cell exhaust and transferring it into the incoming gases (air, O2 or H2) by permeation through Nafion® tubing, the self-limiting units can operate without moving parts and do not require any power or controls. The lightweight devices are available in a range of models which may be used alone or in parallel to accommodate any application size. Manufacturing advances in molding capabilities have allowed Perma Pure to reduce cost by 50 percent on the company’s FC125 and FC200 Series humidifiers.
The company’s Nafion technology is also useful to dry gas samples for analysis, selectively removing only water from samples gases and leaving the rest of the gas sample unaffected. Unlike chillers and condensers, Nafion prevents the loss of water-soluble gases through dissolution in condensate. Perma Pure’s PD-Series and MD-Series dryers operate over a wide range of temperatures, pressures and flow rates, and dry to dew points as low as -45°C to suit a range of analytical applications.
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January 2008
Toms River, NJ (January 24, 2008) –Gas conditioning products from Perma Pure will be exhibited at Pittcon 2008, March 3-5, at the Morial Convention Center (New Orleans, La.). The company’s exhibit at booth 3603 will feature the company’s proprietary Nafion® technology for use with analytical instrumentation.
Perma Pure’s PD™-Series, MD™-Series and heated MDH™-Series dryers operate over a wide range of temperatures, pressures and flow rates to remove excess water vapor and protect analyzers in laboratory, food, beverage, pharmaceutical, water, and industrial applications from damage and inaccurate results. Able to dry to dew points as low as -45°C, Nafion technology selectively removes only water from samples gases, leaving the rest of the gas sample unaffected. Unlike chillers and condensers, Nafion requires no power to operate.
In addition to drying gases, Nafion technology works equally well to humidify gas streams without loss of analytes. Perma Pure’s ME™-Series moisture exchangers use Nafion membrane tubing to transfer water to or from a gas stream, achieving equilibrium between the gas inside the tubing and the surrounding atmosphere. Perma Pure also offers a full line of complimentary gas conditioning products including filters, scrubbers, coolers, and complete sample conditioning systems.
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June 2007
Nafion fuel cell humidifiers based on innovative use of fluoropolymers
Toms River, NJ (June 6, 2007) – FC-Series fuel cell humidifiers from gas conditioning specialist Perma Pure have been recognized with a 2006 DuPont Plunkett Award, honoring innovative products or applications utilizing DuPont’s fluoropolymer products. Perma Pure uses DuPont’s Nafion® polymer Quench SR Resin to manufacture fuel cell humidifiers for Proton Exchange Membrane (PEM) fuel cells. The company’s FC™-Series fuel cell humidifiers are a significant advancement in the developing fuel cell market. The compact, efficient units can be scaled for reliable fuel cell water management in portable devices, transportation vehicles and stationary power supplies.
In PEM fuel cells, where the incoming gas must be humid, FC-Series humidifiers recover water from the fuel cell exhaust and transfer it into the incoming gases by permeation through the walls of Nafion tubing, resulting in rapid, high volume moisture exchange. This proprietary technology is available only from Perma Pure under license from DuPont. This use represents a significant breakthrough as the units are self-limiting, have no moving parts and require no power, eliminating the parts failure, leaks and parasitic power consumption associated with alternative humidifiers. Additionally, the Nafion design overcomes the shortcomings of microporous materials, which fail in cold temperatures. Selective permeation ensures that there is no crossover contamination between the exhaust and incoming gases.
The lightweight devices are available in a range of models which may be used alone or in parallel to accommodate any application size. Fuel cell technology is an emerging clean source of energy that is being applied to a growing number of products. Their simplicity and small size are ideal for use in portable devices such as cell phones and laptop computers. A shock proof design and ability to withstand high operating pressures are also well suited to rugged vehicle applications such as cars, motorbikes and forklifts. Proven reliability provides uninterrupted operation in residential power generation and backup power units.
Perma Pure was awarded second place honors in the Americas region during an April 28th ceremony in Orlando, Fla. Named for DuPont Scientist and inventor of DuPont™ Teflon® PTFE fluoropolymer resin, Dr. Roy J. Plunkett, the Plunkett Awards look for products incorporating DuPont fluoropolymer resins, films, fibers and finishes that demonstrate distinctive benefits and a high degree of innovation. Entries are judged by a panel of independent experts not associated with DuPont, who represent academia, the plastics industry, industry associations or the industry trade press.
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May 2007
Toms River, NJ (May 23, 2007) – Perma Pure will be showing its new Baldwin™-Series line of probes and thermo-electric coolers for continuous emissions monitoring at the 100th annual Air and Waste Management Association (A&WMA) Conference and Exhibition, June 26-28 at the David Lawrence Convention Center (Pittsburgh, PA). These systems, which prepare gas samples for analysis, will join the company’s latest sample preparation technology for gas analyzers and continuous emissions monitoring systems at booth 906.
Baldwin Direct Extractive Filter Probes extract sample gas and remove particulate while preventing condensation prior to the introduction of a gas sample into a heated sample line. A Sure-Lock filter assembly ensures proper probe insertion and reduces the possibility of leaks. Baldwin thermo-electric coolers are specifically designed for high flow rates, high ambient temperatures, and high water volume applications. The Classic Cool, eCool with remote monitoring and control capabilities, and SO3 Aerosol Removal System models provide dependable water removal with minimal maintenance.
For removal of acid mists, coalescent liquids, water and particulates without altering the concentrations of analyte gases, Perma Pure offers the GASS-2040 system. An integral stack mounting capability improves accuracy and eliminates costly heated sample lines. The unit connects directly to the probe and dries the sample completely before transporting it to the ground.
In addition to the Baldwin-Series and GASS-2040, the company offers a range of sampling systems, gas dryers, filters, and ammonia scrubbers that help to maintain sample integrity and prevent contaminants or corrosive elements from damaging analytical equipment.
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October 2006
Toms River, NJ (October 5, 2006) – The latest technology from Perma Pure, designed to achieve moisture balance in medical applications, will be on display at Medica 2006, November 15-18, 2006, in Dusseldorf Germany . The ME™-Series Moisture Exchangers for breath sample dryers, filters and sample lines use proprietary Nafion technology to dry or humidify medical gas and breath sample streams, without altering gas composition and with no utility requirements.
Moisture removal is a critical step prior to analysis in anesthesia monitoring, neonatal monitoring, asthma and respiratory care, metabolic testing, and capnography. Excess water can block sample lines, damage analyzers and reduce the accuracy of analysis. ME Series dryers remove only water vapor from the sample, without removing any of the gases to be analyzed.
In supplemental oxygen systems, extremely dry breathing gases can cause patient discomfort. In these applications, ME-Series moisture exchangers can draw moisture from the room’s atmosphere, efficiently humidifying the gas stream.
In either drying or humidification applications, the ME-Series products seek equilibrium with room humidity, transferring water vapor into or out of the tubing in a stable, self-regenerating cycle. The antibacterial Nafion membrane tubing does not require power input for operation and there are no moving parts to fail. With very low dead volume, the tubing does not cause drops in pressure. In addition, unlike traps and filters, they do not have to be monitored regularly or replaced frequently. With levels of humidification only reaching ambient conditions, there is no threat of rainout in the sample lines.
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August 2006
Toms River, NJ (August 30, 2006) – Perma Pure LLC will exhibit its gas conditioning products at the Instrumentation, Systems and Automation Society (ISA) Expo 2006, booth number 2535. The company offers a full line of dryers, filters, and complete gas sampling systems for use in industrial and scientific applications. The Expo takes place October 17-19 at the Reliant Center, Houston Texas.
With 35 years of experience, Perma Pure has gained a reputation for meeting the most challenging application requirements, preparing hot, wet, dirty gas samples for analysis. The company’s patented Nafion® technology is the core of a range of products that can be incorporated easily into analyzer cabinets or used as stand-alone devices. Acid mists, coalescable liquids, water and particulates are removed without altering the concentrations of analyte gases.
The company’s ISA exhibit will showcase its sample conditioning technology for gas analysis, including the PD™-Series dryers for laboratory use, Zero-Air™ generators for stack testing and its GASS™ family of sample conditioning systems for industrial applications. The GASS™- Module delivers cost-effective and reliable sample preparation in a package that can be easily integrated into environmental analysis systems, while the GASS™-2040 offers a complete system for sample preparation. Additionally, the GASS-2040’s stack mounting option increases accuracy and reduces costs by speeding calibration response time.
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August 2006
Toms River, NJ (August 21, 2006) – Rapid oxidation of gas samples for Total Organic Carbon (TOC) measurement can produce condensation which interferes with accurate readings. Perma Pure’s MD™-Series and MDH™-Series Dryers remove excess water vapor to keep TOC analyzers in laboratory, food, beverage, pharmaceutical, water, and industrial applications free from damage and inaccurate results.
Using patented Nafion® membrane technology, MD-Series and MDH-Series dryers selectively remove only water vapor from gas samples, leaving the carbon dioxide concentration intact for TOC measurement. With this one step drying solution there is no need for a drip leg, peltier cooler, or desiccant canister. Without moving parts, the dryers are highly reliable and require no routine maintenance.
For gas samples with above-ambient dew points, the integral heater and thermostat in the MDH-Series dryers control temperature and prevent condensation throughout the drying process. This integrated design simplifies installation and operation.
MD-Series dryers are available in stainless steel, fluorocarbon or polypropylene, with a range of sizes to accommodate a variety of applications with flow rates of up to 4 LPM. MDH-Series dryers are designed for gas flows of up to 1 LPM, with as much as 30% water by volume. Either model can be incorporated easily into analyzer cabinets or used as a stand-alone device.
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June 2006
Toms River, NJ (June 9, 2006) – Gas samples with a relative humidity of over 85 percent can damage electrochemical sensors (ECS) used to monitor hydrogen sulfide (H2S) at wastewater treatment plants. Condensed water on the cell can flood the sensor, greatly reducing the cell lifetime. Condensation in the sample line can also affect the concentration of highly water soluble H2S. These problems can be eliminated with the Micro-GASS™ Gas Analysis Sampling System from Perma Pure. The system reduces the water content of gases from humid environments to optimal humidity for ECS cells, without altering the concentrations of analyte gases in the sample, producing reliable, accurate results
The Micro-GASS system removes water directly from the vapor phase using patented Nafion® membrane gas dryers. The membrane selectively removes water vapour only, leaving the H2S concentration intact. Drying is a continuous, self-regenerating process with maintenance limited to periodic filter replacement.
The self-contained system requires no additional sample pumps or filters. A built-in pump draws the sample to the ECS cell and continuously removes water vapor from the dryer. The compact, environmentally sealed enclosure resists corrosion and requires only electricity to operate.
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