Removal of naphthalene from recirculated wash oil

Details Removal of naphthalene from recirculated wash oil Removal of naphthalene from recirculated wash oil

1979-10-05

1981-09-01

Nozick, Bernard

Gas separation

Means within gas stream for conducting concentrate to collector

55 49, 55 53, 55 85, 55 89, 201 29, 585833, 585867, 233 29, B01D 1900

Patent

active

042869714

ABSTRACT:
A bleed stream from the recirculating wash oil in a final cooling system for coke oven gas is centrifugally separated into a waste water stream, a sludge stream and a clean, dry oil stream which is substantially free of solids and has a water content less than 0.5% (wt.). The clean, dry oil stream is heated to less than about 160.degree. C., preferably 125.degree.-135.degree. C., before entering a naphthalene stripper-wash oil still.

REFERENCES:
patent: 1778831 (1930-10-01), Jones
patent: 1926188 (1933-09-01), Ambler
patent: 2418988 (1947-04-01), Segur
patent: 2649403 (1953-08-01), Eaton
patent: 2649404 (1953-08-01), Reynolds
patent: 2747680 (1956-05-01), Kilpatrick
patent: 2961065 (1960-11-01), Helm et al.
patent: 3448919 (1969-06-01), Hemfort
patent: 3835035 (1974-10-01), Fainman et al.
patent: 3990632 (1976-11-01), Hemfort
patent: 4026462 (1977-05-01), Tenthoff et al.
patent: 4154584 (1979-05-01), Ullrich

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