Combined process for coal pyrolysis and char gasification

Details Combined process for coal pyrolysis and char gasification Combined process for coal pyrolysis and char gasification

1984-04-02

1986-03-25

Doll, John

Mineral oils: processes and products

Phenolic or toxic oils

C10G 100

Patent

active

045781753

ABSTRACT:
Finely divided coal is reacted in a combination of processes comprising flash pyrolysis and fluidized bed gasification of char from the pyrolysis. A portion of the char which is heated by the steam-oxygen gasification provides the heat for the pyrolysis step, which can be controlled to emphasize production of such materials as light olefins and BTX pyrolyzing at lower pressure and more severe temperature, or to emphasize production of a tar, suitable for processing as a synthetic crude oil, by pyrolyzing at higher pressure and less severe temperature. In either instance the fluidized bed gasification produces a useful synthesis gas.

REFERENCES:
patent: 2991164 (1961-07-01), Elliott et al.
patent: 3861885 (1975-01-01), Schora
patent: 3926775 (1975-12-01), Schroeder
patent: 3963598 (1976-06-01), Manowitz et al.
patent: 4085030 (1978-04-01), Green et al.
patent: 4097361 (1978-06-01), Ashworth
patent: 4162959 (1979-07-01), Durai-Swamy
patent: 4166786 (1979-09-01), Durai-Swamy et al.
patent: 4204943 (1980-05-01), Metrailer et al.
patent: 4218287 (1980-08-01), Albright et al.
patent: 4229185 (1980-10-01), Sass
patent: 4234408 (1980-11-01), Duncan
patent: 4298453 (1981-11-01), Schoennagel et al.
patent: 4331529 (1982-05-01), Lambert et al.
patent: 4336128 (1982-06-01), Tamm
patent: 4404083 (1983-09-01), Vasalos
patent: 4405442 (1983-09-01), Deschamps et al.
Simbeck et al., "Coal Liquefaction: Direct v. Indirect--Making a Choice", Oil & Gas Journal, May 4, 1981, pp. 254-268.
Chemistry of Coal Utilization, 2nd Sup. vol., John Wiley & Sons, 1981, pp. 2110-2111.

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