Method for the adsorptive removal of hydrogen sulfide from gas mixtures
AssigneeBergwerksverband GmbH
InventorsKlaus-Dirk Henning, Jurgen Klein, Burkhard Harder
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Abstract
A method is disclosed for the adsorptive removal of H.sub.2 S from gas mixtures in C-containing adsorption agents with 1-80 bar pressures and regeneration, employing pressure lowering and/or temperature change and simultaneous rinsing with an at most negligibly absorbable component of the gas mixture. A carbon molecular sieve of fossil and/or bituminous fuel is used, with for pore diameter less than 10 nm a pore volume of 15-25 cm.sup.3 /100 g, and micropore volume in pore diameter range 0.35-10 nm less than 10 cm.sup.3 /100 g. The inner surface of the molecular screen can be freed of surface groups capable of reacting with the H.sub.2 S by aftertreatment with reducing gas.
Claims4
Method for the adsorptive removal of hydrogen sulfide from gas mixtures in carbon containing absorption agents by adsorption at pressures between 1-80 bar and regeneration, by pressure lowering and/or temperature change while simultaneously rinsing with a nonadsorbable or only negligibly adsorbable component of the gas mixture in an adsorption reactor, characterized in that a molecular carbon containing screen is used, made of fossil and/or critical bituminous fuel with at pore diameter smaller than 10 nm measured by methanol adsorption pore volume of 15-25 cm.sup.3 /100 g and micropore volume in the pore diameter range of 0.35-10 nm is smaller than 10 cm.sup.3 /100 g, wherein an inner surface of said molecular screen is relieved from surface groups which are capable of reacting with the H.sub.2 S by means of an aftertreatment with a reducing gas.
Method for the adsorptive removal of hydrogen sulfide from gas mixtures in carbon containing adsorption agents by adsorption at pressures between 1-80 bar and regeneration, by pressure lowering and/or temperature change while simultaneously rinsing with a nonadsorbable or only negligibly adsorbable component of the gas mixture in an adsorption reactor, characterized in that a molecular carbon containing screen is used, made of fossil and/or critical bituminous fuel with at pore diameter smaller than 10 nm measured by methanol adsorption pore volume of 15-25 cm.sup.3 /100 g and micropore volume in the pore diameter range of 0.35-10 nm is smaller than 10 cm.sup.3 /100 g.
Dependencies are inferred from the claim text.