Application Guide for the Natural Gas Industry
Molecular Sieve Recommendations
Application Type Grade Comments
Natural Gas Dehydration 4A MS 513 / 514 Dehydration to less than 0.1 ppm(v) prior to liquefaction or Natural Gas liquids extraction
Natural Gas Dehydration 3A MS 562 / 564 Dehydration 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 Dehydration with min. COS formation 3A MS 562 / 564
MS 562 CS / 564 CS Dehydration to less than 0.1 ppm(v); H2S conversion to COS is less than 0.25%
Desulfurization of Natural Gas / NGL / LPG 5A MS 521 / 522 Removal of H2S, COS, and light Mercaptans to pipeline specifications
Desulfurization & COS Min. Natural Gas / NGL / LPG 5A SZ - 5 Special COS minimizing 5A sieve for H2S removal; H2S conversion to COS is less than 4%
CO2 Removal & Dehydration before Liquefaction 4A MS 514 - LNG High capacity Type 4A molecular sieve for removal of CO2 and water to less than 1 ppm(v) prior to liquefaction.
Condensate Drying 4A MS 513 / 514 Dehydration to less than 1.0 ppm(w)
NGL / LPG Sweetening 13X MS 542HP / 544HP
SZ - 9 Removal of H2S, COS, Mercaptans and high MW Sulfur compounds to maintain 1A copper strip LPG / NGL specifications

Application Guide for Air, Solvents & Industrial Processes
Adsorbent Recommendations
Application Type Grade Comments
Air Prepurification 13X MS 544 HP Removal of H2O and CO2 prior to cryogenic separation of Oxygen and Nitrogen
VSA / PSA Oxygen 10X MS VSA - 10 High performance molecular sieve adsorbents used in Oxygen / Nitrogen separation processes
13X MS PSA - 12
5A MS VSP - 5
Hydrogen Purification 5A MS 521 / 522 Removal of H2O and CO2 and trace hydrocarbon impurities by pressure swing Hydrogen purification processes
Silica Gel Grade 40 To replace UOP adsorbent H-3 in PSA units
Solvent Dehydration 3A MS 562 / 564 Dehydration of Benzene, Toluene, Xylene and other Solvents to less than 1.0 ppm(w)
Instrument Air Dehydration Silica Gel Grade 03 Dehydration of compressed air to a minus 40oF dew point
Sclairtech Polyethylene Process Silica Gel Grade 40 Purification of the cyclohexane stream in the Sclairtech Polyethylene process
Liquid Carry Over Protection Silica Gel Grade 59 Special silica to be used as the top layer of any gas phase adsorber to protect against entrained liquids
Ethanol Dehydration 3A MS 562 / 564 H2O removal in thermal, PSA or VSA ethanol dehydration units

Application Guide for the Olefin & Polyolefin Industry
Molecular Sieve Recommendations
Application Type Grade Comments
Cracked Gas Dehydration and C2 Splitter Feed Dehydration 3A MS 562 CS / 564 CS High strength, type 3A 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 Dehydration 3A MS 562 / 564
MS 562 CS / 564 CS High strength, superior coking tolerance and a high water adsorption capacity
Ethylene Dehydration 3A MS 562 / 564 Dehydration to less than 1.0 ppm(w)
Propylene Dehydration 3A MS 562 / 564 Dehydration to less than 1.0 ppm(w)
Ethylene Purification 5A MS 521 / 522 Removal of CO2 to less than 1.0 ppm(v) prior to polymerization processes
Olefin Purification 13X MS 542 HP / 544 HP Removal of oxygenates, Sulfur compounds, ketones and other impurities to protect catalysts used in downstream polymerization processes

Application Guide for the Refining Industry
Molecular Sieve Recommendations
Application Type Grade Comments
Dehydration of Hydrocarbon Gas or Liquid (No Olefins Present) 4A MS 513 / 514 Dehydration to less than 0.1 ppm(v) prior to cryogenic extraction of LPG
Dehydration of Hydrocarbon Gas or Liquid (With Olefins Present) 3A MS 562 / 564
MS 562 CS / 564 CS Dehydration to less than 0.1 ppm(v) prior to cryogenic extraction of LPG or other Olefin products
Isomerization Processes Feedstock Purification 13X MS 544 HP Purification of C4 - C5 feedstocks
13X SZ - 9 Minimizes COS formation while removing H2S and Mercaptans
LPG Desulfurization 5A SZ - 5 Sulfur removal from liquid propane or butane to meet 1A copper strip or HD-5 specifications
13X SZ - 9
13X MS 544 HP
Butane Destenching 13X MS 544 HP Complete removal of odorous sulfur compounds for aerosol propellants
MTBE / TAME 3A MS 562 / 564 Dehydration and purification of feed streams and finished MTBE product
13X MS 544 HP Purification of butane isomerizers unit feed stream and oxygenate removal (ORU) from raffinate streams
Reformer Applications 4A MS 513 / 514 Dehydration of Hydrogen following regeneration of reformer catalyst
FCC Off Gas Dehydration 3A MS 562 CS / 564 CS Dehydration of FCC off gas streams used as feedstocks to cryogenic processes
Chloride Traps 4A CL - 4 Removal of chlorides to minimize catalyst fouling and corrosion control
5A CL - 5
Inert Gas Dehydration (Hydrogen, Nitrogen, CO2) 4A MS 513 / 514 Dehydration to less than 0.1 ppm(v)
Alkylation Feed Dehydration 3A MS 562 / 564
MS 562 CS / 564 CS Dehydration of mixed butane - butylene feedstocks to less than 1 ppm(w)