Procedure to control quality of coal

Details Procedure to control quality of coal Procedure to control quality of coal

1981-10-23

1983-12-20

Garris, Bradley

Distillation: processes, thermolytic

With measuring, testing or inspecting

201 23, 201 44, C10B 4706, C10B 4728, C10B 5706, C10B 5710

Patent

active

044216041

ABSTRACT:
The quality of coke is improved by measuring the width of a plastic zone of a given type of coal, comparing said measured zone with a predetermined zone width known to result in good quality coke, adjusting certain characteristics of said given coal prior to charging it into the coke oven to cause a change in said zone width of the coal that will ultimately result in improved coke quality. Typical adjusting steps include preheating the coal and/or the addition of coal binders, such as, various carbon and petro-based binding agents, for example, pitch.

REFERENCES:
patent: 3607660 (1971-09-01), Kumper
patent: 3970523 (1976-07-01), Beck et al.
patent: 4053569 (1977-10-01), Hahn
patent: 4234387 (1980-11-01), Nandi et al.
patent: 4240877 (1980-12-01), Stahlherm et al.
patent: 4344769 (1982-08-01), Puff et al.

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