Removal of quinoline insolubles from coal derived fractions

Details Removal of quinoline insolubles from coal derived fractions Removal of quinoline insolubles from coal derived fractions

1979-07-25

1981-09-29

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208 87, 208254R, C10G 914

Patent

active

042921708

ABSTRACT:
Coal tar pitch is contacted with a promoter liquid having a 5 volume percent distillation temperature of at least 250.degree. F. and a 95 volume percent distillation temperature of at least 350.degree. F. and no greater than about 750.degree. F., with the liquid having a characterization factor of at least 9.75 to promote the separation of quinoline insolubles from the pitch. A coal tar pitch fraction essentially free of quinoline insolubles is then subjected to coking to produce a needle coke. The process is also applicable to separation of quinoline insolubles from coal tar derived binder pitch.

REFERENCES:
patent: 2775549 (1956-12-01), Shea
patent: 3052742 (1964-09-01), Mills
patent: 3799865 (1974-03-01), Suetsugu et al.
patent: 3856675 (1974-12-01), Sze et al.
patent: 4116815 (1978-09-01), Sunago et al.
Nelson, "Petroleum Refining Engineering", Fourth Edition (1958), p. 85, 774 and 845.

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