Process for heating solids for coal gasification

Details Process for heating solids for coal gasification Process for heating solids for coal gasification

1980-12-22

1982-01-26

Kratz, Peter F.

Gas: heating and illuminating

Processes

Coal

48202, 201 12, C10J 312

Patent

active

043126391

ABSTRACT:
In a coal gasification system using hot recycled inert heat transfer medium solids, before the solids are heated and recycled back to a gasification reactor, the solids are separated from ash and unreacted char. The unreacted char is thereafter burned producing a hot flue gas. The hot flue gas and separated inert heat transfer solids are thereafter mixed to reheat the solids. Two alternate forms of multiple bed solids heating arrangements are described. One uses countercurrent slowly moving beds. The other uses countercurrent fluidized beds. The slow moving bed arrangement is preferred.

REFERENCES:
patent: 1977684 (1934-10-01), Lucke
patent: 2557680 (1951-06-01), O'Dell
patent: 3993583 (1976-11-01), Seglin
patent: 4157245 (1979-08-01), Mitchell et al.

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