Quenching process

Details Quenching process Quenching process

1980-10-07

1982-05-18

Tufariello, T.

Mineral oils: processes and products

Products and compositions

Asphalts, tars, pitches and resins

208 48Q, 208 56, C10C 100, C10G 4500

Patent

active

043303943

ABSTRACT:
The tar vapors from carbonizing coal, preferably in a fluidized bed, are treated by quenching with a hydrogen-donor solvent. Tar molecules prone to polymerization upon condensation and upon distillation are partially hydrogenated; the resulting tar solution is of lower viscosity and less likely to coke or form pitch.

REFERENCES:
patent: 2776727 (1957-01-01), Boisture
patent: 3440163 (1969-04-01), Hammer
patent: 4233137 (1980-11-01), Ozaki
patent: 4279733 (1981-07-01), Gwyn

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