ZSM-5 Zeolite catalyzes dialkyl disulfide conversion to hydrogen

Details ZSM-5 Zeolite catalyzes dialkyl disulfide conversion to hydrogen ZSM-5 Zeolite catalyzes dialkyl disulfide conversion to hydrogen

1979-12-21

1981-05-05

O'Keefe, Veronica

Mineral oils: processes and products

Refining

Sulfur removal

585408, 585733, 208235, C07C 1900

Patent

active

042657350

ABSTRACT:
Dialkyl disulfide waste, such as that formed in a caustic wash process for removing mercaptans from a hydrocarbon stream, is converted to hydrogen sulfide and valuable hydrocarbons by catalytic contact with a highly siliceous zeolite catalyst exemplified by ZSM-5. The hydrogen sulfide in turn is readily converted to marketable sulfur, thus alleviating the waste disposal problem.

REFERENCES:
patent: 2285696 (1942-06-01), Dunn
patent: 2740749 (1956-04-01), Meguerian et al.
patent: 3728408 (1973-04-01), Tobias
patent: 3821103 (1974-06-01), Owell et al.
patent: 3894106 (1975-07-01), Chang
patent: 3894107 (1975-07-01), Butter et al.
C. D. Chang et al. J. Catalysis, 47, 247-249 1977.

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