Supercritical fluid contamination monitor

Details Supercritical fluid contamination monitor Supercritical fluid contamination monitor

1992-09-08

1994-02-01

Warden, Robert J.

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Content or effect of a constituent of a liquid mixture

73 6456, 210 961, 210662, 210746, 324663, 324693, B01D 1500, B01J 3900

Patent

active

052823814

ABSTRACT:
A system and method for detecting the presence of contaminants in supercritical fluid. The system is based upon the use of an absorbent module comprising an absorbent which selectively absorbs the contaminant being measured and wherein the electrical properties (i.e. conductance and/or capacitance) of the absorbent varies depending upon the amount of contaminant absorbed. A sample stream of the supercritical fluid is contacted with the absorbent material. By measuring the electrical properties of the absorbent, contaminant levels are measured and monitored.

REFERENCES:
patent: 3159573 (1964-12-01), Ritchie
patent: 3167949 (1965-02-01), Stenzel et al.
patent: 3238452 (1966-03-01), Schmitt et al.
patent: 4299698 (1981-11-01), Rak et al.
patent: 4597943 (1986-07-01), Sugiyama et al.
patent: 5143696 (1992-09-01), Haas et al.

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