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Mixed-solvent ionic systems as absorption fluids. Annual report, October 1990-September 1991

Technical Report ·
OSTI ID:7280657
The research is in the second year of a three-year project. First, the authors continued working fluid studies for absorption refrigeration cycles. Ammonia-based solutions have been correlated by the method EXP-MSA (exponentially modified mean spherical approach) and incorporated into the cycle program ELECTRO-COP. Second, the method was extended to amine solutions for acid gas treating. Existing correlations: Kent-Eisenberg, Chakravarty, Planche-Renon, and Chen were evaluated. For aqueous amine solutions, they also evaluated the UNIFAC and ASOG group contribution methods. The working fluid studies have been completed (1990-1991) for both aqueous and ammoniac media. The MSA method worked well for both systems. For alkanolamine solutions, new group contribution methods were formulated. The new method was based on the interaction site model of statistical mechanics. Tests were carried out for pure amines and results are encouraging.
Research Organization:
Oklahoma Univ., Norman, OK (United States). School of Chemical Engineering and Materials Science
OSTI ID:
7280657
Report Number(s):
PB-92-211499/XAB; OU/CEMS/HEV--1; CNN: GRI-5087-233-1616
Country of Publication:
United States
Language:
English