Method for increasing the purity of hydrogen recycle gas

Details Method for increasing the purity of hydrogen recycle gas Method for increasing the purity of hydrogen recycle gas

1977-11-23

1980-07-15

Levine, Herbert

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With subsequent treatment of products

55 56, 55228, 208 65, 208344, 422234, B01D 4700, C10G 3900

Patent

active

042127262

ABSTRACT:
Disclosed is a process for hydrotreating hydrocarbon feedstocks and for recovering from the resulting effluent stream selected hydrocarbon fractions, and hydrogen for recycle and other uses with improved purity. Relatively pure hydrogen is provided by separating the effluent stream into a hydrogen-containing gaseous stream and a liquid phase hydrocarbon product, and then contacting the gaseous hydrogen-containing stream in a first absorption step with the liquid phase hydrocarbon product obtained in the gas-liquid separation step, and in a second extraction step with a stabilized portion of the liquid phase hydrocarbon product.

REFERENCES:
patent: 3425931 (1969-02-01), Penisten et al.
patent: 3470084 (1969-09-01), Scott
patent: 3520799 (1970-07-01), Forbes
patent: 3706655 (1972-12-01), Weith
patent: 3882014 (1975-05-01), Monday et al.
patent: 3923921 (1975-12-01), Kohfeldt
patent: 4009097 (1977-02-01), Ward

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