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中文摘要：
引言 煤基费托（F—T）合成液体燃料，由于工艺的特殊性，几乎不含环状烃及硫、氮等杂原子，是煤炭清洁高效利用的一种有效途径。费托合成油除可生产优质无硫、无芳烃、低密度和高十六烷值的柴油组分外，还可生产石蜡、润滑油、溶剂油等特种油品和各种烯烃等化工产品。
英文摘要：
Two alpha functions （BM, SRW） and three different mixing rules （MHV2, WS, HG） for the PR and RKS-EOS were investigated in the vapor-liquid equilibrium calculation of related binary systems for Fischer-Tropsch synthesis oil system. Furthermore, two different equations of states （EOS） of SR-POLAR and PC-SAFT, together with two activity coefficient equations of UNIF-DMD and UNIF-HOC were investigated. The results showed that various prediction methods had similar deviations for weakly polar systems. However, these method had different prediction abilities for other systems. UNIF-DMD, RKS- HG and RKS-MHV2 models gave more accurate prediction for non-associating strongly polar system, RKS-MHV2 and UNIF-HOC models showed the smallest deviation for associating strongly polar system containing water, UNIF-HOC and SR-POLAR models showed the smallest deviation for associating strongly polar system containing acids, and UNIF-HOC, SR-POLAR models showed the smallest deviation for other associating strongly polar systems, while RKS-MHV2 and RKS-HG took the second place. PC-SAFT model would bring big deviation for unsymmetrical system when binary parameters were lacking, but would give small deviation for all systems when binary parameters were available.
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