Hydrotreating of pyrolysis gasoline

Details Hydrotreating of pyrolysis gasoline Hydrotreating of pyrolysis gasoline

1978-05-30

1979-11-06

Crasanakis, George

Mineral oils: processes and products

Refining

Gum or gum former removal

C10G 2300

Patent

active

041735293

ABSTRACT:
In the catalytic hydrotreating of pyrolysis gasoline, the major portion of dienes present in the hydrotreated product concentrate in the C.sub.5 fraction. The C.sub.5 fraction is separated from a first portion of the hydrotreated effluent and a portion of said separated C.sub.5 fraction is combined with a second portion of the hydrotreated effluent as a combined recycle stream to the hydrotreating reaction. By combining a portion of the separated C.sub.5 fraction with the recycle hydrotreated effluent, the net C.sub.5 product recovered from the process has a diene value which is lower than that which would be obtained without the C.sub.5 recycle.

REFERENCES:
patent: 3215750 (1965-11-01), Benesi
patent: 3537982 (1970-11-01), Parker
patent: 3853748 (1974-12-01), Tabler

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