1
Philippe Courty, Andre Deschamps, Sigismond Franckowiak, Andre Sugier: Process for purifying a gas containing hydrogen sulfide and contact masses usable therefor. Institut Francais du Petrole, Millen & White, May 9, 1978: US04088736 (87 worldwide citation)

A process for purifying a hydrogen sulfide containing gas, which comprises absorbing said hydrogen sulfide onto a mass comprising zinc oxide, alumina and a group II A metal oxide, a large proportion of the group II A metal oxide being in the form of aluminate or silicoaluminate; then regenerating th ...


2
Andre Deschamps, Claude Dezael, Sigismond Franckowiak, Henri Gruhier: Process for purifying a hydrogen sulfide containing gas. Institut Francais du Petrole, Millen & White, January 12, 1982: US04310497 (20 worldwide citation)

A process for purifying a gas containing hydrogen sulfide, wherein said gas is admixed with oxygen and contacted with a carbon mass of specific surface higher than 50 m2/g and containing at least one oxide and/or sulfate of iron and/or copper, at a temperature from 20.degree. to 170.degree. C., the ...


3
Andre Deschamps, Sigismond Franckowiak, Andre Sugier: Process for purifying a hydrogen sulfide containing gas. Institut Francais du Petrole, Millen & White, February 17, 1981: US04251495 (17 worldwide citation)

Process for purifying a gas containing hydrogen sulfide, optionally with carbon dioxide, particularly adapted to the purification of gases of relatively low hydrogen sulfide content, e.g. not in excess of 1% of H.sub.2 S by volume, comprising contacting the gas with an absorption mass containing cop ...