IT1039007B - Regeneration of spent metal-porous carrier adsorbents - by treatment with dilute oxygen, a reducing gas and an inert gas to remove hydrogen sulphide poison
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Regeneration of spent metal-porous carrier adsorbents - by treatment with dilute oxygen, a reducing gas and an inert gas to remove hydrogen sulphide poison
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IT1039007B
IT1039007BIT2439875AIT2439875AIT1039007BIT 1039007 BIT1039007 BIT 1039007BIT 2439875 AIT2439875 AIT 2439875AIT 2439875 AIT2439875 AIT 2439875AIT 1039007 BIT1039007 BIT 1039007B
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Solid reaction components contg. a metal cpd. on a porous carrier, and exhausted by reaction with H2S, are regenerated by (1) heating the spent solid material with dilute oxygen in an inert gas stream at 90-220 degrees C, (2) contacting the material from stage (1) with a reducing gas at 150-260 degrees C and (3) heating the product from stage (3) in an inert atmosphere at 200-320 degrees C. Method is esp. for regenerating solid reaction agents caused for removing H2S from recycle H2 streams used in reforming processes. Typical solid reaction materials have a carrier e.g. of active carbon, silica or clay and the metal cpd. is a mixture of Cu- and Cr oxides or a mixt. of Ni- and Mo oxides.
IT2439875A1974-06-171975-06-16Regeneration of spent metal-porous carrier adsorbents - by treatment with dilute oxygen, a reducing gas and an inert gas to remove hydrogen sulphide poison
IT1039007B
(en)
Regeneration of spent metal-porous carrier adsorbents - by treatment with dilute oxygen, a reducing gas and an inert gas to remove hydrogen sulphide poison
Method for removing virtually all the sulphur compounds h2s, so2, cos and/or cs2 from sulphur plant waste gases, and recovering such compounds as sulphur
Regeneration of spent metal-porous carrier adsorbents - by treatment with dilute oxygen, a reducing gas and an inert gas to remove hydrogen sulphide poison
Sulphur recovery from gas contg. hydrogen sulphide in low concn. - by Claus process using absorption and desorption for concn. of sulphur di:oxide stream