Pyrolysis and hydrogenation process

Patent · Tue Sep 04 04:00:00 EDT 1979

OSTI ID:5204601

Duraiswamy, K; Winter, B L

In a continuous process for recovery of values from a solid carbonaceous material, the carbonaceous material is pyrolyzed in the presence of a particulate source of heat to yield a particulate carbon containing residue of pyrolysis and volatilized hydrocarbons while simultaneously the volatilized hydrocarbons are hydrogenated. The particulate source of heat is formed by oxidizing carbon in the solid residue to heat the particles. Hydrogen for hydrogenation is obtained by reacting at least a portion of the hot particulate carbon containing residue of pyrolysis with steam prior to feeding the hot particulate residue to the pyrolysis reaction zone. Steam and/or carbon dioxide can be introduced into the pyrolysis reaction zone to react with carbon containing residue contained therein. The particulate source of heat can be introduced to the pyrolysis reaction zone over an overflow weir. The hydrogen and the particulate source of heat can be formed simultaneously in an oxidation-conversion zone. The volatilized hydrocarbons can be further hydrogenated in a vapor hydrogenation zone. 7 figures.

• Assignee: Occidental Petroleum Corp.
• Patent Number(s): US 4166786
• OSTI ID: 5204601
• Country of Publication: United States
• Language: English

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