Process for gasification of coal to maximize coal utilization an

Details Process for gasification of coal to maximize coal utilization an Process for gasification of coal to maximize coal utilization an

1978-10-30

1980-04-22

Bashore, S. Leon

Gas: heating and illuminating

Processes

Coal and water

48203, 48206, 48DIG7, 60 3902, 252373, 260449M, 2604495, 423359, 423648R, C10J 316, C10J 346

Patent

active

041993276

ABSTRACT:
Coarse, graded coal is fed to a pressurized relatively fixed bed, non-slagging gasifier from which crude gas is recovered. Fine coal is slurried in an aqueous mixture comprising the discharge from the relatively fixed bed gasifier, which discharge is composed of hydrocarbons, phenolic water and other liquids as major components and additional makeup water, if required, and the slurry is fed to a slagging, pressurized entrained flow gasifier from which additional crude gas is recovered. The two streams of gas are cleaned and then used to meet a variety of demands, including, but not limited to, gas turbine generation of electric power, manufacture of synthetic natural gas and manufacture of methanol.

REFERENCES:
patent: 3951617 (1976-04-01), Crouch
patent: 3966634 (1976-06-01), Sacks
patent: 3971635 (1976-07-01), Matthews
patent: 3986349 (1976-10-01), Egan
"Coal Gasification for Industrial Use and Power", Merer et al., CIM Bulletin Jun. 1978.

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