C - Chemistry – Metallurgy – 10 – J
Patent
C - Chemistry, Metallurgy
10
J
48/26
C10J 3/46 (2006.01) C01B 3/52 (2006.01) C02F 1/26 (2006.01)
Patent
CA 1103928
ABSTRACT The invention relates to producing synthesis gas and is concerned with improving energy utilization and recover- ing unconverted carbon. The effluent gas stream from a partial oxidation gas generator is scrubbed with water. A dispersion of particulate carbon and water is produced, mixed with a liquid organic extractant, and separated in a decanter. The overhead dispersion of carbon in liquid organic extraction from the decanter is mixed with extraction oil and heated in a vaporizing operation to produce a vaporized overhead mixture comprising substantially all of the water and liquid organic extractant, and an unvaporized liquid bottoms dispersion of carbon in extraction oil containing only a minor amount of water and liquid organic extractant. The bottoms dispersion is passed into a steam stripper in counterflow with stripping steam. The overhead from the steam stripper, in admixture with 0 to 100 volume % of the overhead from the vaporizing operation is cooled and condensed to separate water and liquid organic extractant by indirect heat exchange in at least two and preferably three condensing zones in series utilizing as coolants, liquid organic extractant, and air or water; and in any further zones, the overhead dispersion from the decanter and/or the extraction oil. The bottoms stream from the steam stripper, comprising carbon and extraction oil may be mixed with hydrocarbonaceous feed and pumped into the gas generator with or without further heating.
317356
Beall James F.
Brady John M.
Dach Michael M.
Gulko George M.
Kaufman Harold C.
Smart & Biggar
Texaco Development Corporation
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