Process for removing arsenic from green coke derived from shale

Details Process for removing arsenic from green coke derived from shale Process for removing arsenic from green coke derived from shale

1981-08-14

1983-03-08

Garris, Bradley

Distillation: processes, thermolytic

And refining char, e.g., desulfurizing coke

208 53, 208251R, C10B 5300, C10B 5700, C10G 1700

Patent

active

043760155

ABSTRACT:
Arsenic is removed from green shale oil coke of high arsenic content by calcining the coke at 1500.degree. F. to 3000.degree. F. for 0.1 hr to 4 hr. The arsenic content is reduced from above about 150 to 300 ppm to below about 100 ppm, thereby making the coke suitable for use as a fuel, in electrodes for producing aluminum, or in steel making.

REFERENCES:
patent: 3933624 (1976-01-01), Myers
patent: 4011303 (1977-03-01), MacGregor
patent: 4029571 (1977-06-01), Curtin
patent: 4083924 (1978-04-01), Styring
patent: 4146434 (1979-03-01), Alford et al.
patent: 4181596 (1980-01-01), Jensen
patent: 4188280 (1980-02-01), Jensen
"About Coke-and Where the Sulfur Went"; Chemtech; vol. 7; No. 6; pp. 366-373; 6/77.

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