Method for cleaning tar-bearing waste water and apparatus...

Details Method for cleaning tar-bearing waste water and apparatus... Method for cleaning tar-bearing waste water and apparatus...

2008-02-12

2009-12-01

Caldarola, Glenn (Department: 1797)

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By plural serial diverse separations

C585S804000

Reexamination Certificate

active

07626069

ABSTRACT:
In a method and an apparatus for cleaning tar-bearing waste water (17), a mixture of water and hydrocarbons, e.g. comprising polyaromatic hydrocarbons and phenols, the mixture is separated into a low-boiling-point part and a high-boiling-point part, bringing the low-boiling-point part on vapor form in a boiler (1), and the low-boiling-point part is cracked in vapor form at a high temperature in a reactor (2), providing light combustible gases, which can be utilized in e.g. gas engines, gas turbines or the like. Furthermore, the high-boiling-point part may be used for energy supply to the process or other processes or as an alternative be cracked for providing light combustible gases.

REFERENCES:
patent: 2930753 (1960-03-01), McMahon
patent: 4279693 (1981-07-01), Künlein et al.
patent: 4315757 (1982-02-01), Woodmansee

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