Coal pyrolysis

Details Coal pyrolysis Coal pyrolysis

1978-10-19

1980-08-19

Gantz, Delbert E.

Mineral oils: processes and products

Phenolic or toxic oils

208 15, C10G 100, C10L 104

Patent

active

042183030

ABSTRACT:
Hydropyrolysis of coal can be done as a two stage process, offering good yields of benzene. The first stage is carbonization of coal in the presence of hydrogen or reactive gas at elevated pressure. The volatile products, without cooling or condensing, are then subjected to cracking at a temperature above the carbonization temperature, in the absence of catalyst, in the presence of hydrogen or reactive gas. The char remaining is reactive and can be gasified. The process is e asier to control and offers many advantages compared to prior proposed single stage hydropyrolysis.

REFERENCES:
patent: 1659930 (1928-02-01), Trumble
patent: 3058903 (1962-10-01), Otis

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