Hydrocarbon product stripping

Details Hydrocarbon product stripping Hydrocarbon product stripping

1987-12-22

1989-04-18

Pal, Asok

Mineral oils: processes and products

Refining

Sulfur removal

208308, 208347, 208355, 208356, 208362, C10G 700

Patent

active

048224804

ABSTRACT:
Improved product stripping in a catalytic hydrodesulfurization (CHD) product stream is obtained by employing off-gas from the unit as a stripping medium. The compressed off-gas is introduced into the stripper below the stripper feed level. The stripper may be operated at pressures higher than those previously employed in CHD product strippers and this permits LPG recovery to be maximized with lower product sulfur levels and reduced load in the off-gas compressor.

REFERENCES:
patent: 3310487 (1967-03-01), Johnson et al.
patent: 3365374 (1968-01-01), Short et al.
patent: 3637485 (1972-01-01), Salka
patent: 4415443 (1983-11-01), Murphy

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