Process for de-chlorinating and de-fouling oil

Details Process for de-chlorinating and de-fouling oil Process for de-chlorinating and de-fouling oil

1998-04-28

2000-08-22

Myers, Helane

Mineral oils: processes and products

Refining

Purifying used oil

208184, 208 48R, C10M 1700

Patent

active

061066990

ABSTRACT:
The invention is directed to a process of reducing the chlorine content of oil as well as its propensity to foul during subsequent distillation processes. The process heats the oil to a temperature in the range of 400 to 700 F and contacts the oil with a non-oxidizing gas, such as steam, for a residence time of at least several minutes. Thereafter the oil may be distilled and/or finished to a base lubricating oil or other distillate product. The oil subject to the process may be used oil, and can be subject to a dewatering or removal of light contaminants treatment prior to being subject to the process.

REFERENCES:
patent: 3923643 (1975-12-01), Lewis
patent: 3990963 (1976-11-01), Audibert
patent: 4033859 (1977-07-01), Douglas
patent: 4071438 (1978-01-01), O'Blasney
patent: 4381992 (1983-05-01), Wood et al.
patent: 4762797 (1988-08-01), Dickakian
patent: 4941967 (1990-07-01), Mannetje et al.
patent: 5286380 (1994-02-01), Mullen
patent: 5688335 (1997-11-01), Krabbenhoft

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