Sulfur recovery process using metal oxide absorbent with regenerator recycle to claus catalytic reactor

Patent · Tue Jan 10 04:00:00 EST 1989

OSTI ID:6439517

McGovern, J J; Pendergraft, P T; Lee, M H

This patent describes a method comprising: converting H/sub 2/S in an acid gas feedstream to a Claus plant to elemental sulfur by the Claus reaction and producing a Claus plant tailgas in a Claus plant comprising a Claus furnace and a Claus catalytic reactor; removing both H/sub 2/S and SO/sub 2/ in the presence of ZnO; regenerating ZnS to ZnO in the presence of O/sub 2/ producing regenerator effluent; providing a portion of acid gas feedstream withdrawn upstream of the Claus furnace to oxidation means distinct from the Claus furnace for oxidizing H/sub 2/S to SO/sub 2/ in the presence of O/sub 2/; further providing regenerator effluent to the oxidation means; and providing effluent from the oxidation means to the Claus catalytic reactor of the Claus plant.

• Assignee: Amoco Corp., Chicago, IL
• Patent Number(s): US 4797268
• OSTI ID: 6439517
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ABSORPTION
ADSORBENTS
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMICAL REACTORS
CLAUS PROCESS
DESULFURIZATION
ELEMENTS
FURNACES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
INORGANIC PHOSPHORS
NONMETALS
OXIDATION
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHOSPHORS
RECOVERY
REGENERATION
REMOVAL
SULFIDES
SULFUR
SULFUR COMPOUNDS
ZINC COMPOUNDS
ZINC OXIDES
ZINC SULFIDES