Process for the catalytic incineration of residual gases containing a low content of at least one sulfur compound selected from COS, CS/sub 2/ and the mercaptans and possibility at least one member of the group

Patent · Tue Aug 16 00:00:00 EDT 1983

OSTI ID:5580729

Voirin, R

A process is disclosed for the catalytic incineration of residual gases containing a low content of H/sub 2/S and/or SO/sub 2/, organic compounds of sulfur such as COS, CS/sub 2/, mercaptans and possibly vapor and/or vesicular sulfur, comprising a hydrogenation stage which transforms all the sulfur compound into H/sub 2/S followed by a catalytic oxidation stage to transform H/sub 2/S into SO/sub 2/. The catalyst used in the oxidation stage consists in a porous support, having a surface area of at least 5 m/sup 2//g and containing, by weight, 50 to 100% of a product selected from the group comprising titanium or zirconium oxides, silica and zeolites, and 50 to 3% alumina, to which is associated on several compounds of metals belonging to the group formed by Cu, Ag, Zn, Cd, Y, Lanthanides, V, Cr, Mo, W, Mn, Fe, Co, Rh, Ir, Ni, Pd, Pt, Sn and Bi. The use of such an oxidation catalyst leads to a practically quantitative yield of conversion of H/sub 2/S into SO/sub 2/, this yield being maintained steadily throughout the process.

• Assignee: Societe Nationale Elf Aquitaine (France)
• Patent Number(s): US 4399112
• OSTI ID: 5580729
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
42 ENGINEERING
424000 -- Engineering-- Pollution Control Equipment-- (1980-1989)
AIR POLLUTION CONTROL
CARBON COMPOUNDS
CARBON SULFIDES
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTIONS
CLAUS PROCESS
CONTROL
DECOMPOSITION
GASEOUS WASTES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
PYROLYSIS
SULFIDES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
THERMOCHEMICAL PROCESSES
WASTES