Method of pyrolyzing brown coal

Details Method of pyrolyzing brown coal Method of pyrolyzing brown coal

1983-12-16

1985-08-06

Kratz, Peter

Distillation: processes, thermolytic

Fluidized bed

48210, 201 29, 201 36, C10B 4910

Patent

active

045334382

ABSTRACT:
A two-step method and apparatus, according to the fluidized bed principle, for the production of coke, rich gas and pyrolysis tar, with the object of executing the method in a compact apparatus arrangement, with high energy efficiency and high throughput capacity.
This is accomplished by a sequence in which the fine grains removed from the drying vapor mixture are removed from the actual pyrolysis process, and a hot gas, alien to the carbonization, is used as fluidization medium in the pyrolysis reactor, and with a hot gas-high performance separator being used for the dust separation from the pyrolysis gas, with the combustion exhaust gas produced in the combustion chamber being used for the indirect heating of the fluidization medium, for the pre-heating of the gas, which is alien to the carbonization, and for the direct heating in the dryer. The dryer has a double casing in the area of the fluidized bed, and a mixing chamber is arranged directly underneath its initial flow bottom, while the pyrolysis reactor is directly connected to the combustion chamber and the pre-heater.

REFERENCES:
patent: 3130133 (1964-04-01), Loevenstein
patent: 3565766 (1971-02-01), Eddinger et al.
patent: 4056443 (1977-11-01), Colletta et al.
patent: 4069024 (1978-01-01), Fernandes

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