Definition: cat·a·lyst
Pronunciation: 'ka-t&l-&st
Function: noun
1 : a substance (as an enzyme) that enables a chemical reaction
 to proceed at a usually faster rate or under different conditions
 (as at a lower temperature) than otherwise possible
2 a substance that increases the rate of a chemical reaction
without itself undergoing any change

Sulfursorb:
*Standard packaging is in 55 lb. vinyl bags.
Other packaging is available upon request.
 
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Sulfursorb Plus:
*Standard packaging is in 40lb. bags.
Other packaging is available upon request

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Sulfursorb and Sulfursorb Plus are unique products that are manufactured without the use of chemical impregnation to the surface of the carbon. Sulfursorb and Sulfursorb Plus are specially developed for the removal of hydrogen sulfide, also known as H2S (the main source of sewer and septic gas odors), and other compounds commonly found in municipal odor control applications.

With Sulfursorb and Sulfursorb Plus hydrogen sulphide is removed catalytically rather than by chemical adsorption. Because of its catalytic properties, Sulfursorb and Sulfursorb Plus gives you the high loading rates of impregnated carbons without the thermal risks associated with chemically treated carbons (caustic Impregnated carbons). 

This Makes Sulfursorb and Sulfursorb Plus the perfect choices for use in sewage treatment plants and pumping stations where these compounds are typically found
The absence of a chemical impregnation means that in certain applications, Sulfursorb and Sulfursorb Plus can be regenerated* on site with water (instead of hazardous chemicals used with impregnated carbons), thereby re-establishing the active catalytic sites within the internal pore structure.

While catalytic carbons cost more than standard or impregnated activated carbons, the end result is that it has the adsorbing capabilities of activated carbon without the shorter life and with the benefit of easily being regenerated.*

Sulfursorb:   is an non-impregnated, bituminous coal based catalytic activated carbon which has been specially developed for removing hydrogen sulfide and sulfur compounds from air streams.  It is well suited for use in sewage treatment plants and pumping stations where these compounds are typically found.  GC Sulfursorb gives you the high loading rates of impregnated carbons without the thermal risks associated with some chemically treated carbons.  GC Sulfursorb can also be washed with water to improve long term performance.

H2S capacity is measured using ASTM standard method D6646-01.  Testing requires passing a moist air stream containing 1% by volume H2S though an appropriately sized column (per ASTM requirements) packed with activated carbon and monitoring to a 50 ppmv H2S breakthrough.  Results are reported as grams of H2S adsorbed per gram of activated carbon
MSDS  Buy Now
Use and Care of Activated Carbon
Activated Carbon Principle of Operation
Sulfursorb Brochure

*Standard packaging is in 55 lb. vinyl bags. Other packaging is available upon request.

Sulfursorb Plus: is an non-impregnated, bituminous coal based catalytic activated carbon which has been specially developed for removing hydrogen sulfide and sulfur compounds from air streams.  It is well suited for use in sewage treatment plants and pumping stations where these compounds are typically found.  GC Sulfursorb Plus gives you the high loading rates of impregnated carbons without the thermal risks associated with some chemically treated carbons.  GC Sulfursorb Plus can also be washed with water to improve long term performance.*

H2S capacity is measured using ASTM standard method D6646-01.  Testing requires passing a moist air stream containing 1% by volume H2S though an appropriately sized column (per ASTM requirements) packed with activated carbon and monitoring to a 50 ppmv H2S breakthrough.  Results are reported as grams of H2S adsorbed per gram of activated carbon
MSDS Buy Now
Use and Care of Activated Carbon
Activated Carbon Principle of Operation

*Standard packaging is in 40lb. bags.
Other packaging is available upon request

Activated Carbon Principles of Operation Printable version

Activated carbon works by the process of adsorption.  Adsorption is when one material adheres to the surface of another material by means of physical and/or chemical attraction between the materials.  Activated carbon is full of holes.  This network of connected pores inside the carbon gives it a large surface area (approx. 1000 sq M per gm of carbon).  Organic odor molecules from the air are attracted to the internal carbon surface. These contaminates accumulate on carbon's interior surface until an equilibrium level is reached between the concentration on the carbon surface and the concentration left in the air.  The lower the residual concentration required in the air stream, the greater the relative amount of carbon required to achieve that level.

The capacity of activated carbon to adsorb a compound depends on several factors including air temperature, the chemicals boiling point, molecular weight, and concentration in the air stream.  The mass transfer zone (MTZ) is the area in the bed where adsorption takes place.  The chemicals concentration and air flow rate change the size of the MTZ.  The lead edge of the MTZ has no contamination in it while the trailing edge is completely saturated (to the level of contamination in the inlet air).  As the MTZ moves through the carbon bed and approaches the end of the bed, breakthrough occurs.  The carbon becomes saturated with adsorbate and the contaminate can be detected in the exhaust.  When the outlet concentration exceeds a specified limit the bed is spent.  The carbon must then be replaced or regenerated.  Samples of the carbon drawn from various levels of the bed can be tested for their remaining capacity and used to predict the remaining bed life.  In this way, bed replacement can be scheduled in advance of the actual need and avoid timing problems.

Activated carbon can be impregnated with chemicals to enhance its ability to control problem contaminates.  Control of acid gases such as Hydrogen Sulfide and Mercaptans is greatly enhanced by impregnation with a caustic compound.  General Carbon IPH carbon is treated with Potassium Hydroxide (KOH) for this purpose.  The KOH gives carbon the ability to chemically neutralize acidic gases and increase the volume of air able to be treated by the carbon.

For applications with high H2S concentrations, bed life can be partially renewed by a process of in site "regeneration".  The procedure soaks the bed in a caustic solution that dissolves accumulated sulfur.  This process is not recommended by Simple Solutions Dist. LLC. because only a limited amount of life can be restored to the carbon.

A better option over Impregnated activated carbons for H2S control is Sulfursorb Catalytic activated carbon.

Sulfursorb is a unique product that is manufactured without the use of chemical impregnation to the surface of the carbon. Sulfursorb was specially developed for the removal of hydrogen sulfide, also known as H2S (the main source of sewer and septic gas odors), and other compounds commonly found in municipal odor control applications.

With Sulfursorb Hydrogen sulphide is removed catalytically rather than by chemical adsorption. Because of its catalytic properties Sulfursorb gives you the high loading rates of impregnated carbons without the thermal risks associated with chemically treated carbons (Impregnated carbons). 

This Makes Sulfursorb the perfect choice for use in sewage treatment plants and pumping stations where these compounds are typically found.

The absence of a chemical impregnation means that in certain applications, Sulfursorb can be regenerated* on site with water (instead of hazardous chemicals used with impregnated carbons), thereby re-establishing the active catalytic sites within the internal pore structure.
While Catalytic carbons cost more than standard or impregnated activated carbons, the end result is that it has the adsorbing capabilities of activated carbon without the shorter life and with the benefit of easily being regenerated.*

Printable version of sulfursorb information
MSDS Sulfursorb

*Note: Washing Sulfursorb is not recommended in most cases due to the high potential sulfur contents, which can be washed off the carbon. Proper clothing and respirator must be utilized when regenerating carbon with water.