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Purification Series Adsorbents

“Purification” can refer to different kind of impurities polishing. For an easier segmentation and accessibility, dedicated webpages are available addressing specific contaminants purification such as drying, sulfur, arsine, mercury, fluoride and chloride removal. This webpage will focus mainly on the removal of polar compounds (oxygenates, nitrogen and sulfur) as well as TBC (Ter-Butyl-Catechol: polymerization inhibitor).

These contaminants have to be removed mainly due to their toxicity, avoiding corrosion issues, freezing concerns (downstream of the cold boxes used for liquefaction), preventing downstream catalysts deactivation and also meeting final products high purity level. These products are widely used in different markets such as refining, petrochemicals, chemicals, natural gas, air and industrial gas.

Polar Compounds Removal from various streams

AxSorb® 902

AxSorb® 902 is the newest generation adsorbent for reduced reactivity towards olefins.

The most common application of this product is the removal of trace impurities including oxygenates, nitrogen and sulfur compounds from olefin streams.

Characteristics Hybrid Alumina
Shape Sphere
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AxSorb® 911

AxSorb® 911 is a regenerative molecular sieve for adsorption of polar molecules from natural gas, LPGs, NGL, olefins, air, etc.

It features a very high selectivity towards a large range of molecules (sulfur, oxygenates and nitrogen compounds), and a high adsorption capacity even at low impurity concentrations.

Characteristics Molecular Sieves
Shape Cylindrical Extrudate
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AxSorb® 913

AxSorb® 913 is a regenerative molecular sieve for adsorption of polar molecules from natural gas, LPGs, NGL, olefins, air, etc. 

It features a very high selectivity towards a large range of molecules (sulfur, oxygenates and nitrogen compounds), and a high adsorption capacity even at low impurity concentrations.

Characteristics Molecular Sieves
Shape Sphere
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TBC (4-Tert-ButylCatechol) Removal from monomers

AxSorb® 920

AxSorb® 920 is an activated alumina with high surface area excellent for drying and TBC removal of both gas and liquids.

Adsorbent reactivity towards olefins is minimized.

Characteristics Activated Alumina
Shape Sphere
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AxSorb® 926

AxSorb® 926 is a very high capacitive adsorbent for TBC removal. Adsorbent reactivity toward olefins is minimized.

Characteristics Promoted Alumina
Shape Sphere
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Drying and sweetening

AxSorb® 951

AxSorb® 951 is a regenerative molecular sieve for adsorption of polar molecules.

This product is commonly used for sweetening of natural gas, NGL and LPG, but also for hydrogen purification, particularly by pressure swing adsorption (PSA).

Characteristics Molecular Sieves
Shape Cylindrical Extrudate
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CO₂ & H₂S, COS and CS₂ removal from Gas & Liquids

AxSorb® 980

AxSorb® 980 is a promoted adsorbent especially developed for removal of CO2, COS, CS2 and other sulfur species from gas and liquid hydrocarbon streams.

AxSorb® 980 is also a catalyst of low temperature COS hydrolysis.

Characteristics Promoted Alumina
Shape Sphere
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AxSorb® 984

AxSorb® 984 is a best-in-class regenerative promoted adsorbent especially developed to exhibit high capacities for removal of CO2, COS and other sulfur species from gas and liquid hydrocarbon streams.

Characteristics Promoted Alumina
Shape Sphere
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Water & CO₂ removal for gas

AxSorb® 990

AxSorb® 990 is a regenerative promoted adsorbent especially develop to exhibit high capacity for removal of CO2 from various gases and olefins streams. It is also effective for drying.

Characteristics Promoted Alumina
Shape Sphere
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Other Related Axens Solutions

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Drying Series Adsorbents

Water removal applications are widely encountered in the industry sector. Activated alumina and molecular sieves stand at the forefront of the several different materials available on the market.

Sulfur Removal Adsorbents for Oil, Gas & Petrochemicals

Hydrogen sulfide (H₂S), COS, mercaptans or sulfides are common contaminants that must be removed from various gases and liquids such as natural gas, NGLs, LPGs, cracked gases, olefins or biogas.

Arsine Removal Adsorbents

The poisonous effects of arsine and other metal hydrides on hydrogenation and polymerization catalysts is well documented. By far the most common, arsine can seriously deactivate the high-activity Ziegler Natta, metallocene and noble metal catalysts used for processing cracked light ends.

Mercury Removal Adsorbents

Mercury removal from hydrocarbons is crucial due to HSE-related issues, corrosion problems and downstream catalyst poisoning.

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