Liquid purification or separation – Processes – Preventing – decreasing – or delaying precipitation,...
Patent
1993-03-16
1994-12-06
Drodge, Joseph W.
Liquid purification or separation
Processes
Preventing, decreasing, or delaying precipitation,...
73 6162, 738656, 137 7, 137 88, 166311, 210749, 210741, 366145, 366152, 417 5, 436 6, 436 25, G02F 100, G01N 3700
Patent
active
053707990
ABSTRACT:
An apparatus and process for simulation of field fluid flow conditions under elevated temperature and pressure conditions of oil and gas production, refining, cooling towers, desalinization. The process involves evaluating inhibitor action in reduction of a specified chemical reaction under simulated field aqueous flow conditions by forming first and second aqueous flow streams having a preset concentration of anions and cations, respectively, for the specified chemical reaction with at least one of these streams having a concentration of the inhibitor to inhibit the specified chemical reaction. These streams are combined to form a single process stream where the specified chemical reaction may take place. The process is repeated with successive reductions in inhibitor until detecting the specified chemical reaction in the process stream. The system of this invention is useful for study of problems of scaling, corrosion and other fluid-solid reactions and evaluation of inhibitors therefore, particularly with respect to BASO.sub.4, whose solubility decreases with low temperatures and pressures and which frequently include substituted naturally occurring radioactive materials.
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Oddo John E.
Tomson Mason B.
Drodge Joseph W.
Gas Research Institute
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