Decontamination of hydrocarbon process equipment

Details Decontamination of hydrocarbon process equipment Decontamination of hydrocarbon process equipment

1993-05-13

1995-02-14

Dean, Richard O.

Cleaning and liquid contact with solids

Processes

Including regeneration, purification, recovery or separation...

134 11, 134 221, 134 2214, 134 2215, 134 2219, 134 30, 134 31, 134 34, 134 39, B08B 300, B08B 308, B08B 900

Patent

active

053891562

ABSTRACT:
Contamination can be removed from equipment of a chemical processing flow path by pumping through the plant an aqueous solution at an elevated temperature of an extractant, such as terpene, and a surfactant mixture which traps contaminants for disposal in an environmentally acceptable manner.

REFERENCES:
patent: 1722211 (1929-07-01), Guardino
patent: 1891592 (1932-12-01), FitzGerald
patent: 2023496 (1935-12-01), Todd
patent: 2715594 (1955-08-01), Garrison
patent: 3084076 (1963-04-01), Loucks
patent: 4446044 (1984-05-01), Rutkiewic et al.
patent: 4511488 (1985-04-01), Matta
patent: 4790951 (1988-12-01), Frieser et al.

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