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  • ARID Technologies - PERMEATOR Fact Sheet
    Texas on 21 January 2005 by the Texas Commission on Environmental Quality TCEQ All new refueling stations with Stage II vapor recovery systems within specific non attainment counties must be ORVR compliant ARID s PERMEATOR system was granted approval by CARB California Air Resources Board on 6 October 2006 Executive Order G 70 209 Internationally dispensing facility units based on PERMEATOR membrane technology are operating in Germany Luxembourg Switzerland Japan South Korea Italy and Taiwan The customers include CPC DEA BK Porsche BMW Copal ARAL Avia Shell Chevron Texaco Q 8 Oil GPR Uny Oil and Erg see FAQ section Over 475 retail station systems have been installed Bulk terminal gasoline vapor recovery systems using membranes have been successfully operating throughout the world since 1989 Each of the 250 large scale systems installed since 1989 has been consistently operating in tank farms and ship loading terminals without any membrane replacements The performance and long term stability of these hydrocarbon selective membranes are commercially proven and such systems are considered an established technology in Europe Patents owned assigned to or licensed by ARID include the following 6 836 732 4 994 094 5 537 911 P 44 10 597 5 P

    Original URL path: http://www.aridtech.com/permeator_fact_sheet.html (2016-02-15)
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  • ARID Technologies - Technical Summary
    outlets the duration between bulk tanker deliveries provides ample time for re equilibration of the storage tank headspace to occur Re equilibration results in the evaporation of hydrocarbons and corresponding pressure increases within the headspace of the storage tank Note 1 gallon of liquid gasoline evaporates to 520 gallons of vapor 40 hydrocarbon concentration Increased pressure in the tank leads to vapor emissions through pressure vacuum relief vents and through leaks in the vapor pathway Without additional processing evaporative emissions result in substantial product loss environmental emissions and health safety hazards These evaporative emissions are costly Unfortunately the new ORVR systems which are effective in reducing refueling emissions actually increase evaporative emissions from storage tanks Membrane Separation The gas separation membranes used in the PERMEATOR consist of an extremely thin selectively permeable polymeric film attached to a porous support structure Membrane films are integrated into modules to provide maximum surface area per unit volume of pressure housing Unlike conventional particle filters that separate materials based on physical size differences ARID s vapor separation membranes separate compounds based on differences in the solubility and diffusivity of specific molecules Hydrocarbon molecules pass through or permeate the thin polymer film more rapidly than other molecules and are returned to the underground storage tank Figure 1 Molecules such as oxygen and nitrogen air are much slower permeators and are rejected by the membrane film and vented to the atmosphere The difference in permeation rates between hydrocarbon and air molecules allows for the selective separation of gasoline vapors from air Figure 1 ARID s membrane based system provides a simple safe and economical solution that eliminates emissions of gasoline vapors at dispensing facilities Removing excess air from storage tanks prevents over pressurization from occurring and virtually eliminates fugitive emissions Storage tanks can be controlled to

    Original URL path: http://www.aridtech.com/technical_summary.html (2016-02-15)
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  • ARID Technologies - Independent Study - Lantana, Florida, Field Testing Summary
    the premium gasoline storage tank T3 Since the p v ON measurements are taken at a large prevailing backpressure of 3 inches H2O the fugitive leaks are relatively large contributors and significantly impact the observed flow rates recorded by the flow meters installed by Matus Technical Services Inches H2O is methodology of measuring the amount of pressure being exerted Please note that the simple installation of a p v valve in no way reduces or eliminates the prevailing excess vapor volume generation rates thus the difference must be due to leakages It is also interesting to note that although the leak decay test was passed with a starting pressure of 2 inches H2O the portable hydrocarbon detector showed that the drain valve bucket leaks became prominent at a pressure of about 2 7 inches H2O Since PERMEATOR maintains the average storage tank pressure less than 0 5 inches H2O a level significantly below 2 7 inches H2O the fugitive leak sources are minimized or altogether eliminated PERMEATOR On vs Off Graph Appendix 2 PERMEATOR ON VS OFF shows the pressure trace comparison with PERMEATOR ON versus OFF The measured results are also compared to values calculated by ARID s proprietary Evaporative Loss Model ELM As seen in Appendix 3 ELM xls the year 2005 predicted gasoline savings are 23 12 gallons per day With reference to Table 1 Field Test Data Summary the actual measured losses with the p v OFF total 21 31 gallons per day exhibiting excellent agreement with the ARID ELM The ARID ELM also presents expected results for future years up to and including 2014 Average values for the 10 year period are presented in bold font at the bottom of the 2004 column Please note that the savings expected in 2014 due solely to the increase in ORVR population are tabulated at 58 04 gallons per day a 250 increase over the 10 year period The after tax internal rate of return IRR is shown to be 44 yielding a slightly greater than two year payback on invested capital while at the same time reducing emissions an average of 33 8 tons per year for a single refueling station With reference to Appendix 4 Gasoline RVP Samples pdf the inputs used in the ELM were as follows V L ratio 0 97 average value derived from measured values gasoline RVP 11 1 psia measured by The State of Florida Department of Agriculture and Consumer Services Laboratory located in Port Everglades Florida Facility SP0002 average storage tank temperature 74 F via tank gauge altitude of refueling facility 25 feet above sea level estimated Of particular note as seen in Table 1 Field Test Data Summary the evaporative loss rate during times when the station is Closed no dispensing of fuel exceeds the evaporative loss rate when the station is Open This fact confirms the presence and the importance of the resaturation of air comprising the primary mechanism of the evaporative losses at this relatively high throughput

    Original URL path: http://www.aridtech.com/study_lantana.html (2016-02-15)
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  • ARID Technologies - Independent Study - CARB
    non Stage II facilities through vent lines as liquid gasoline is pumped from the underground storage tanks to refuel automobiles Presently Stage II vapor recovery efficiencies are being dramatically reduced from the combination of balance or vacuum assisted vapor recovery systems and newly mandated on board refueling vapor recovery ORVR systems installed on vehicles said ARID president Ted Tiberi Even without ORVR systems existing vacuum assisted systems currently require additional technologies to minimize tank pressurization and subsequent hydrocarbon emissions Also dispensing facilities which are not equipped with Stage II vapor recovery systems can dramatically reduce evaporative losses caused by ingestion of atmospheric air into storage tanks Tiberi also said The evaporative emissions of volatile organic compounds VOC s from gasoline dispensing facilities contributes to the formation of ground level ozone which is the prime ingredient of smog in our cities On the economic side the loss of product is an additional burden to independent petroleum marketers since wholesale product purchased from Major Oil Companies lost as vapor cannot be re sold at retail In addition the taxes paid on wholesale product cannot be recouped at the retail level ARID has been working closely with the California Air Resources Board CARB

    Original URL path: http://www.aridtech.com/study_VOCs.html (2016-02-15)
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  • Arid Technologies - News & Events
    On Sport Railcar loading application all make use of the same fundamental membrane separation technology ARID uses a selectively permeable membrane which separates a feed stream containing hydrocarbon vapor and air into two streams a hydocarbon rich stream and a hydrocarbon lean stream For the PERMEATOR the hydrocarbon rich stream is returned directly in vapor phase to the headspace of a regular grade fuel tank and the hydrocarbon lean stream comprised of clean air is exhausted to the atmosphere The enriched hydrocarbons are used to blanket the storage tanks with saturated vapor which eliminates the root cause of liquid evaporation to vapor phase product In this manner further evaporation of product is eliminated and fuel savings accrue to the owner or operator of the gasoline station For the Membrane CRU this unit is placed between the truck rack and an existing carbon adsorption system used at bulk loading terminals In this case the hydrocarbon rich stream is routed to the absorber column normal component on carbon adsorption system and this stream is liquified and returned to the bulk storage tank The hydrocarbon lean stream is directed to the carbon adsorption beds for subsequent processing In this manner the Membrane CRU

    Original URL path: http://www.aridtech.com/products1.html (2016-02-15)
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  • Arid Technologies - ARID's CRU Membrane System installed at Petro-Diamond's Long Beach, CA Bulk Terminal - Highly Successful CARB Emission Test Confirms Recovery Efficiency
    need for Petro Diamond to simultaneously fill more tanker trucks while still maximizing its capture of product and meeting all environmental requirements The existing McGill carbon bed system was unable to accommodate the increased throughput desired After the ARID CRU membrane stage was installed upstream of the carbon bed system Petro Diamond was able to go from 4 loading arms to 9 loading arms operating simultaneously South Coast Air Quality Management District s emissions standard for this terminal was set at 0 065 lbm HC pounds of hydrocarbons per 1 000 gallons of fuel loaded A recent CARB emission test California Air Resources Board conducted on 21 January to 22 January 2009 measured an emissions level of 0011 lbm HC 1 000 gallons loaded This emission was only about 1 60th of the allowable level Petro Diamond was very pleased with the results of adopting the ARID CRU Pat Kennedy the Long Beach CA Terminal Manager stated With the PERMEATOR membrane unit installed the carbon beds regenerate faster than I ve ever seen On a 15 minute cycle we achieved a deep vacuum which indicates a clean bed in about 2 5 minutes Petro Diamond s Mike Dougherty General Manager added The older carbon adsorption unit would require a large capital investment for replacement and would still struggle with processing components added to our gasoline such as Ethanol With the Membrane Retrofit option our carbon bed is usable as is and the membrane unit removes the highly polar hard to treat components before they reach the carbon beds In addition Petro Diamond s Eric Conard Manager Environmental observed Why use a flare or burner ever again with the prevailing price of gasoline recycle and re use seem to make a lot more sense than combustion About the Membrane CRU ARID

    Original URL path: http://www.aridtech.com/news_petro.html (2016-02-15)
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  • Arid Technologies - TESTIMONIALS - Costco
    years ago we installed an ARID PERMEATOR membrane processor in Lantana Florida working in conjunction with the State of Florida Palm Beach County and the federal EPA Since that successful test we ve installed PERMEATORs at several other locations around the country including Florida Texas Washington and Nevada We just completed the installation of ten PERMEATORs in Texas to comply with their ORVR compatibility mandate Each of these states has

    Original URL path: http://www.aridtech.com/testimonial_costco.html (2016-02-15)
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  • Arid Technologies - TESTIMONIALS - Wawa
    same time generating significant fuel savings Thus we can earn money through product savings while at the same time being environmentally responsible By installing and operating PERMEATORS at multiple Wawa refueling sites for more than one year I have verified the on going fuel savings and I have also been impressed with the low maintenance quiet and consistent system operation and the PERMEATOR s ability to remotely measure and record

    Original URL path: http://www.aridtech.com/testimonial_wawa.html (2016-02-15)
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