CO.sub.2 treatment to remove +2 ionic metal from crude

Details CO.sub.2 treatment to remove +2 ionic metal from crude CO.sub.2 treatment to remove +2 ionic metal from crude

1999-05-07

2000-07-25

Griffin, Walter D.

Mineral oils: processes and products

Refining

Metal contaminant removal

C10G 2902

Patent

active

060933119

ABSTRACT:
The present invention is a process to remove a +2 ionic charged metal from a petroleum feed. The process includes contacting feed with carbon dioxide at a temperature between 40.degree. C. and 200.degree. C. and autogenous pressure. In a preferred embodiment the metal is a Group II metal. In particular, the metal is calcium.

REFERENCES:
patent: 4191639 (1980-03-01), Audeh et al.
patent: 4228022 (1980-10-01), Lowe et al.
patent: 4464251 (1984-08-01), Kukes et al.
patent: 4465589 (1984-08-01), Kukes et al.
patent: 4518489 (1985-05-01), Hitzman
"Chemical Refining of Petroleum" by Kalichevsky et al., 1942, pp. 30-35 and 166-167.

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