Recovery of particulate carbon from synthesis gas

Details Recovery of particulate carbon from synthesis gas Recovery of particulate carbon from synthesis gas

1976-04-30

1977-04-05

Mars, Howard T.

Compositions

Gaseous compositions

Carbon-oxide and hydrogen containing

C01B 214

Patent

active

040161030

ABSTRACT:
A process for recovering particulate carbon from the effluent gas stream from a partial oxidation synthesis gas generator by scrubbing the effluent gas with water in a scrubbing zone to form a carbon-water dispersion, mixing said dispersion in mixing and separating zones with a light liquid hydrocarbon fuel fraction extractant to produce a clarified water layer and a carbon-liquid hydrocarbon fuel dispersion, separating and recycling said clarified water to said scrubbing zone; separating said carbon light liquid hydrocarbon fuel dispersion and introducing same into a centrifugal separation zone; separately withdrawing from said centrifugal separation zone a thick stream of carbon-liquid hydrocarbon fuel dispersion and a separate thin stream of carbon-liquid hydrocarbon fuel dispersion; degasifying said clean centrifugal stream and introducing said thin centrifugal stream into said mixing and separating zone as a portion of said light liquid hydrocarbon fuel extractant, introducing said thick stream of carbon-liquid hydrocarbon fuel dispersion in admixture with fresh heavy liquid hydrocarbon fuel e.g. heavy fuel oil into a fractional distillation zone; recycling a light liquid hydrocarbon fuel fraction from said distillation zone to said mixing zone as a portion of said light liquid hydrocarbon fuel extractant, and introducing a pumpable bottoms slurry of carbon heavy liquid hydrocarbon fuel from said distillation zone into said synthesis gas generator as at least a portion of the fuel.

REFERENCES:
patent: 2987386 (1961-06-01), Chapman et al.
patent: 2992906 (1961-07-01), Guptill
patent: 2999741 (1961-09-01), Dille et al.
patent: 3473903 (1969-10-01), Paull et al.
patent: 3846095 (1974-11-01), Crouch
patent: 3868817 (1975-03-01), Marion et al.

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