Molecular Sieves Application Guide for the Natural Gas Industry Molecular Sieve Molecular Sieve Recommendations

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1 Application Guide for the Natural Gas Industry Natural Gas / DG Natural Gas / EPG to less than 0.1 ppm(v) prior to liquefaction or Natural Gas liquids Extraction. to less than 0.1 ppm(v) while minimizing methanol and / or propane co-adsorption; reduces regeneration heating requirements and improves yields with less hydrocarbon hold up. Natural Gas with min. COS formation / EPG to less than 0.1 ppm(v); H2S conversion to COS is less than 0.25%. Desulfurization of Natural Gas / NGL / LPG Removal of H2S, COS, and light Mercaptans to pipeline specifications. Desulfurization & COS Min. Natural Gas / NGL / LPG RK-29 Special COS minimizing sieve for H2S removal; H2S conversion to COS is less than 4%. CO2 Removal & before Liquefaction / DG High capacity Type molecular sieve for removal of CO2 and water to less than 1 ppm(v) prior to liquefaction. Condensate Drying / DG to less than 1.0 ppm(w). Recommendations - 1 -

2 Application Guide for Air, Solvents & Industrial Processes Adsorbent Air Prepurification APG Removal of H2O and CO2 prior to cryogenic separation of Oxygen and Nitrogen. VSA / PSA Oxygen 10X 10X HP /HF-5120 High performance molecular sieve adsorbents used in Oxygen / Nitrogen separation Processes. Hydrogen Purification HF-512H Removal of H2O and CO2 and trace hydrocarbon impurities by pressure swing Hydrogen purification processes. Solvent / EPG of Benzene, Toluene, Xylene and other Solvents to less than 1.0 ppm(w) Ethanol / EPG H2O removal in thermal, PSA or VSA ethanol dehydration units

3 Application Guide for the Refining Industry of Hydrocarbon Gas or Liquid (No Olefins Present) / DG to less than 0.1 ppm(v) prior to cryogenic extraction of LPG of Hydrocarbon Gas or Liquid (With Olefins Present) / EPG to less than 0.1 ppm(v) prior to cryogenic extraction of LPG or other Olefin products. Isomerization Processes, Feedstock. Purification PG HP Purification of C4 - C5 feedstocks. Minimizes COS formation while removing H2S and Mercaptans LPG Desulfurization PG Sulfur removal from liquid propane or butane to meet 1A copper strip or HD-5 specifications Butane Destenching PG/HP Complete removal of odorous sulfur compounds for aerosol propellants / EPG and purification of feed streams and finished MTBE product MTBE / TAME HP Purification of butane isomeration unit feed stream and oxygenate removal (ORU) from raffinate streams Reformer Applications / DG of Hydrogen following regeneration of reformer catalyst FCC Off Gas / EPG of FCC off gas streams used as feedstocks to cryogenic processes Inert Gas (Hydrogen, Nitrogen, CO2) / DG to less than 0.1 ppm(v) Alkylation Feed / EPG of mixed butane - butylene feedstocks to less than 1 ppm(w) - 3 -

4 Used for dehydration and drying of refrigerants XH-5 R12, R22. XH-7 Used for dehydration and drying R-134a, also used for specialized refrigerants such as butane in green refrigerators. For Refrigerant and Air Conditioner XH-9 In drying refrigerants in air conditioners, iceboxes and refrigerators in cars, station wagons, refrigeration trucks, trains and shipper. XH-11 Drying of refrigerants R407c, R-410A. HFW-325 Used for purification of refrigerant R134a, reduce HCFC1122 less than 2ppm Automobile Air Desiccators Recommendations. HF-404 Used for desiccation of automobile air system

5 Application Guide for the Olefin & Polyolefin Industry Cracked Gas and C2 Splitter Feed / EPG High strength, type molecular sieve spheres with optimized adsorption kinetics; superior coking tolerance and attrition resistant properties provides maximum useful service life and lowest pressure drop NGL Feedstock / EPG High strength, superior coking tolerance and a high water adsorption capacity Ethylene / EPG to less than 1.0 ppm(w) Propylene / EPG to less than 1.0 ppm(w) Ethylene Purification Removal of CO2 to less than 1.0 ppm(v) prior to polymerization processes Olefin Purification PG/10X Removal of oxygenates, Sulfur compounds, ketones and other impurities to protect catalysts used in downstream polymerization processes. commendations - 5 -