Reduction of hydrocarbon losses in a molecular sieve hydrocarbon

Details Reduction of hydrocarbon losses in a molecular sieve hydrocarbon Reduction of hydrocarbon losses in a molecular sieve hydrocarbon

1988-10-12

1990-06-19

Myers, Helane

Catalyst, solid sorbent, or support therefor: product or process

Specific contaminant removal

Sulfur or sulfur compound removal

208189, 208150, 208208R, 208310Z, 208301, 208305, 502 34, 502514, B01J 3804

Patent

active

049354000

ABSTRACT:
Molecular sieves are used to remove sulfur compounds (e.g., COS and H.sub.2 S) from liquid hydrocarbon streams, particularly liquid propane. During regeneration of the sieves, some of the liquid hydrocarbons remains on the sieves and is lost by vaporization during the purge step and the liquid fill step. This invention reduces the loss by recovery and recycle of the vaporized hydrocarbons in the liquid recovery process.

REFERENCES:
patent: 3188293 (1965-06-01), Bacon et al.
patent: 3288719 (1966-11-01), Asher et al.
patent: 3392111 (1968-07-01), Napier et al.
patent: 3408286 (1968-10-01), Hepp
patent: 3472786 (1969-10-01), Urban et al.
patent: 3849295 (1974-11-01), Addison
patent: 4179399 (1979-12-01), Lichtenberger et al.

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