METHOD AND CATALYST FOR DIRECT SULPHUR OXIDATION OF H2S CONTAINED IN A GAS

The invention concerns a method wherein the H2S of a gas to be treated is sulphur oxidised by being contacted with an oxidation catalyst consisting of at least one oxysulphide of a metal selected among Ni, Fe, Co, Cu, Cr, Mo and W, associated with a silicon carbide support, by operating at temperatu...

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Bibliographische Detailangaben
Hauptverfasser:	NOUGAYREDE, JEAN, KELLER, NICOLAS, CROUZET, CLAUDE, PHAM HUU, CUONG, LEDOUX, MARC, SAVIN-PONCET, SABINE
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention concerns a method wherein the H2S of a gas to be treated is sulphur oxidised by being contacted with an oxidation catalyst consisting of at least one oxysulphide of a metal selected among Ni, Fe, Co, Cu, Cr, Mo and W, associated with a silicon carbide support, by operating at temperatures lower than the dew point of the sulphur formed and more particularly ranging between 30 DEG C and 70 DEG C: The invention is useful for eliminating H2S contained in gases of various origins with recuperation of said H2S essentially in the form of sulphur. L'H2S du gaz à traiter est oxydé en soufre au contact d'un catalyseur d'oxydation consistant en au moins un oxysulfure d'un métal choisi parmi Ni, Fe, Co, Cu, Cr, Mo et W, associé à un support en carbure de silicium, en opérant à des températures inférieures au point de rosée du soufre formé et plus particulièrement comprises entre 30 DEG C et 70 DEG C. Application à l'élimination de l'H2S contenu dans des gaz d'origines diverses avec récupération de cet H2S essentiellement sous la forme de soufre.