Recovery of particulate carbon from synthesis gas. [9 claims]

Patent · Tue Apr 05 04:00:00 EST 1977

OSTI ID:7255996

Marion, C P

A process is described 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. 9 claims, 2 figures.

• Assignee: Texaco Development Corp.
• Patent Number(s): US 4016103
• OSTI ID: 7255996
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
CARBON
DIAGRAMS
DISPERSIONS
ELEMENTS
EXTRACTION
FLOWSHEETS
FLUIDS
GASES
HYDROCARBONS
HYDROGEN COMPOUNDS
NONMETALS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PURIFICATION
RECOVERY
SCRUBBING
SEPARATION PROCESSES
SOLVENT EXTRACTION
SYNTHESIS GAS
WATER