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Title: Method and apparatus for production of crystallizable carbonaceous material

Patent ·
OSTI ID:6015886

A heavy oil such as an atmospheric pressure residue, a reduced pressure residue of petroleum, etc. is heated to 400/sup 0/ to 500/sup 0/ C. to carry out polycondensation and provide a pitch containing mesophase microspheres. This pitch is once cooled to 200/sup 0/ to 400/sup 0/ C. and a turbulent flow is imparted thereto to cause agglomeration of the mesophase microspheres. The resulting agglomerates are separated to obtain a crystallizable material enriched with quinoline insolubles. Production of the crystallizable material is preferably conducted in a separation tank accommodating the lower part of a heating polycondensation reactor and having a stirring device.

Assignee:
Koa Oil Co., Ltd. (Japan)
Patent Number(s):
US 4488957
OSTI ID:
6015886
Resource Relation:
Patent Priority Date: Priority date 26 May 1982, Japan; Other Information: PAT-APPL-382360
Country of Publication:
United States
Language:
English