Title:
【発明の名称】ガス中に含有されているH▲下2▼Sを硫黄に直接酸化するための方法及び触媒
Document Type and Number:
Japanese Patent JP2001514613
Kind Code:
A
Abstract:
A regenerative process for oxidizing H2S contained in low concentration in a gas directly to sulphur including combining the H2S-containing gas with a gas containing free oxygen in an amount to form an O2/H2S-containing gas with an O2/H2S molar ratio ranging from 0.05 to 15; contacting the O2/H2S-containing gas with a catalyst for the selective oxidation of H2S to sulphur, wherein the catalyst includes a catalytically active phase containing at least one oxysulphide of at least one metal selected from the group consisting of nickel, iron, cobalt, copper, chromium, molybdenum and tungsten combined with a silicon carbide support and including a compound of at least one transition metal, at temperatures below the dew point of the sulphur formed by oxidation of H2S and depositing the sulphur on the catalyst; periodically regenerating by flushing the sulphur-laden catalyst using a non-oxidizing gas at temperatures of between 200° C. and 500° C. to vaporize sulphur retained on the catalyst; and cooling the regenerated catalyst below the dew point of the sulphur to a temperature for H2S oxidation to be carried out again, such cooling being carried out by a gas having a temperature less than 180° C.
Inventors:
Ludow, Marc
Nugeded, Jiyang
Sabang-Ponce, Sabinu
Huam Yu, Quon
Kerell, nicolas
Cruze, Claude
Nugeded, Jiyang
Sabang-Ponce, Sabinu
Huam Yu, Quon
Kerell, nicolas
Cruze, Claude
Application Number:
JP53460499A
Publication Date:
September 11, 2001
Filing Date:
December 24, 1998
Export Citation:
Assignee:
Elf Exploration Prode Yucion
International Classes:
B01D53/86; B01J27/04; B01J27/224; B01J27/30; B01J38/04; C01B17/04; (IPC1-7): C01B17/04; B01J27/224
Attorney, Agent or Firm:
Yoshio Kawaguchi (2 outside)