物性方法选择? 做一个塔,含有如下的物质:甲醇、 甲酸 甲酯、丙酮、 甲基乙基酮 、 二乙基 酮、醋酸、丙酸、乙醛、乙醇、醋酸甲酯、乙酸乙酯、水、甲酸应该选择什么模型。 选了PRWS,还试了很多其他常用的物性方法,都是有相同的警告提示,不知道是不是因为物性方法的问题 ,如果不是请指教,是的话请推荐一个合适的方法,谢谢: Processing input specifications ... * WARNING IN THE "PROPERTIES" PARAGRAPH WHICH BEGINS ON LINE 65 FREE-WATER METHOD SHOULD BE STEAMNBS WHEN THE MAIN PROPERTY METHOD IS SRK. DEFAULT FREE-WATER METHOD IS STEAM-TA PLEASE SPECIFY THE RECOMMENDED FREE-WATER METHOD AND RUN AGAIN. INFORMATION BINARY PARAMETERS PRKIJ (DATA SET 1) FOR MODEL ESPRSTD ARE RETRIEVED FROM SDF TABLE. TABLE NAME = ESPRSTD * WARNING IN THE "STREAM" PARAGRAPH WHICH BEGINS ON LINE 268 STREAM NAME: FEED COMPONENT MASS FRACTIONS ARE NORMALIZED TO UNITY. * WARNING IN THE "STREAM" PARAGRAPH WHICH BEGINS ON LINE 276 STREAM NAME: STEAM COMPONENT MOLE FLOWS OF SUBSTREAM: "MIXED" ARE NORMALIZED TO THE TOTAL MOLE FLOW VALUE. * WARNING IN PHYSICAL PROPERTY SYSTEM EQUATION OF STATE MODEL POLYSL HAS MISSING PARAMETERS: SLPSTR (DATA SET 1) MISSING FOR COMPONENT METHANOL A NOMINAL VALUE OF 3000. (bar) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLTSTR (DATA SET 1) MISSING FOR COMPONENT METHANOL A NOMINAL VALUE OF 415. (K) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLRSTR (DATA SET 1) MISSING FOR COMPONENT METHANOL A NOMINAL VALUE OF 736. (KG/CUM) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLPSTR (DATA SET 1) MISSING FOR COMPONENT METHY-01 A NOMINAL VALUE OF 3000. (bar) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLTSTR (DATA SET 1) MISSING FOR COMPONENT METHY-01 A NOMINAL VALUE OF 415. (K) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLRSTR (DATA SET 1) MISSING FOR COMPONENT METHY-01 A NOMINAL VALUE OF 736. (KG/CUM) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLPSTR (DATA SET 1) MISSING FOR COMPONENT ACETO-01 A NOMINAL VALUE OF 3000. (bar) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLTSTR (DATA SET 1) MISSING FOR COMPONENT ACETO-01 A NOMINAL VALUE OF 415. (K) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLRSTR (DATA SET 1) MISSING FOR COMPONENT ACETO-01 A NOMINAL VALUE OF 736. (KG/CUM) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLPSTR (DATA SET 1) MISSING FOR COMPONENT METHY-02 A NOMINAL VALUE OF 3000. (bar) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLTSTR (DATA SET 1) MISSING FOR COMPONENT METHY-02 A NOMINAL VALUE OF 415. (K) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLRSTR (DATA SET 1) MISSING FOR COMPONENT METHY-02 A NOMINAL VALUE OF 736. (KG/CUM) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLPSTR (DATA SET 1) MISSING FOR COMPONENT DIETH-01 A NOMINAL VALUE OF 3000. (bar) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLTSTR (DATA SET 1) MISSING FOR COMPONENT DIETH-01 A NOMINAL VALUE OF 415. (K) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLRSTR (DATA SET 1) MISSING FOR COMPONENT DIETH-01 A NOMINAL VALUE OF 736. (KG/CUM) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLPSTR (DATA SET 1) MISSING FOR COMPONENT ACETI-01 A NOMINAL VALUE OF 3000. (bar) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLTSTR (DATA SET 1) MISSING FOR COMPONENT ACETI-01 A NOMINAL VALUE OF 415. (K) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLRSTR (DATA SET 1) MISSING FOR COMPONENT ACETI-01 A NOMINAL VALUE OF 736. (KG/CUM) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLPSTR (DATA SET 1) MISSING FOR COMPONENT PROPI-01 A NOMINAL VALUE OF 3000. (bar) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLTSTR (DATA SET 1) MISSING FOR COMPONENT PROPI-01 A NOMINAL VALUE OF 415. (K) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLRSTR (DATA SET 1) MISSING FOR COMPONENT PROPI-01 A NOMINAL VALUE OF 736. (KG/CUM) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLPSTR (DATA SET 1) MISSING FOR COMPONENT ACETA-01 A NOMINAL VALUE OF 3000. (bar) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLTSTR (DATA SET 1) MISSING FOR COMPONENT ACETA-01 A NOMINAL VALUE OF 415. (K) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLRSTR (DATA SET 1) MISSING FOR COMPONENT ACETA-01 A NOMINAL VALUE OF 736. (KG/CUM) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLPSTR (DATA SET 1) MISSING FOR COMPONENT ETHAN-01 A NOMINAL VALUE OF 3000. (bar) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLTSTR (DATA SET 1) MISSING FOR COMPONENT ETHAN-01 A NOMINAL VALUE OF 415. (K) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLRSTR (DATA SET 1) MISSING FOR COMPONENT ETHAN-01 A NOMINAL VALUE OF 736. (KG/CUM) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLPSTR (DATA SET 1) MISSING FOR COMPONENT METHY-03 A NOMINAL VALUE OF 3000. (bar) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLTSTR (DATA SET 1) MISSING FOR COMPONENT METHY-03 A NOMINAL VALUE OF 415. (K) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLRSTR (DATA SET 1) MISSING FOR COMPONENT METHY-03 A NOMINAL VALUE OF 736. (KG/CUM) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLPSTR (DATA SET 1) MISSING FOR COMPONENT ETHYL-01 A NOMINAL VALUE OF 3000. (bar) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLTSTR (DATA SET 1) MISSING FOR COMPONENT ETHYL-01 A NOMINAL VALUE OF 415. (K) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLRSTR (DATA SET 1) MISSING FOR COMPONENT ETHYL-01 A NOMINAL VALUE OF 736. (KG/CUM) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLPSTR (DATA SET 1) MISSING FOR COMPONENT WATER A NOMINAL VALUE OF 3000. (bar) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLTSTR (DATA SET 1) MISSING FOR COMPONENT WATER A NOMINAL VALUE OF 415. (K) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLRSTR (DATA SET 1) MISSING FOR COMPONENT WATER A NOMINAL VALUE OF 736. (KG/CUM) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLPSTR (DATA SET 1) MISSING FOR COMPONENT FORMI-01 A NOMINAL VALUE OF 3000. (bar) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLTSTR (DATA SET 1) MISSING FOR COMPONENT FORMI-01 A NOMINAL VALUE OF 415. (K) ASSUMED * WARNING IN PHYSICAL PROPERTY SYSTEM SLRSTR (DATA SET 1) MISSING FOR COMPONENT FORMI-01 A NOMINAL VALUE OF 736. (KG/CUM) ASSUMED查看更多49个回答 . 2人已关注