Process for preparing debenzolized tar and low-benzene centrifug

Details Process for preparing debenzolized tar and low-benzene centrifug Process for preparing debenzolized tar and low-benzene centrifug

1992-08-07

1994-05-24

Myers, Helane

Mineral oils: processes and products

Asphalts, tars, pitches and resins; making, treating and...

By distillation

208 42, C10C 104, C10C 110, C10C 112

Patent

active

053146093

ABSTRACT:
Crude coal tar is distilled in the form produced in a coke plant. The distillation tower contains a rectification section to retain naphthalene with the other components heavier than benzene. The benzene is removed overhead.

REFERENCES:
patent: 1759816 (1930-05-01), MacCubbin
patent: 1844896 (1932-02-01), Miller
patent: 2673833 (1930-03-01), Radasch
patent: 2740753 (1956-04-01), Schmalenbach
patent: 2851397 (1958-09-01), Raineau
patent: 3928169 (1975-12-01), Conroy
patent: 4349418 (1982-09-01), Belsky et al.
The National Emissions Standards for Hazardous Air Pollutants ("NESHAP"), Part 61, Subpart L promulgated in 1989 (Federal Register, vol. 54, No. 177, pp. 38073 et seq., Sep. 14, 1989).

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