unifac法估算甲烷在常三柴油中的高压溶解度（Estimation of high pressure solubility of methane in constant three diesel oil by UNIFAC method）.docVIP

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unifac法估算甲烷在常三柴油中的高压溶解度（Estimation of high pressure solubility of methane in constant three diesel oil by UNIFAC method）.doc

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unifac法估算甲烷在常三柴油中的高压溶解度（Estimation of high pressure solubility of methane in constant three diesel oil by UNIFAC method）

unifac法估算甲烷在常三柴油中的高压溶解度（Estimation of high pressure solubility of methane in constant three diesel oil by UNIFAC method） Estimation of high pressure solubility of methane in constant three diesel oil by UNIFAC method Wang Yiping, Zhang Guojian, Huang Qunwu, Liu Weibing (School of chemical engineering, Tianjin University, Tianjin 300072) Abstract: in order to meet the needs of hydrogen rich atmosphere of coal direct liquefaction of basic data, select the three diesel oil as solvent, determination of high-pressure gas solubility test device using self circulation method, high-pressure solubility data of methane in diesel was determined (273.45 ~ 293.75K, 1.79 ~ 8.06MPa), the average structure of diesel engine were calculated by n-d-M-LP method and application of UNIFAC equation to estimate the solubility under same conditions, the estimated values and the average relative error of experimental value is 3.36%, the lack of data meet the requirements under the estimate. Keywords: methane; solubility; UNIFAC method; n-d-M-LP method Calculation, on, the, solubility, of, in, atmospheric, NO.3, diesel, Methane, oil, under, high,, pressures, with, UNIFAC, method Wang, Yiping, Zhang, Guojian, Huang, Qunwu, Liu, Weibing (School, of, Chemical, Engineering, and, Technology, Tianjin, University, Tianjin, 300072) Abstract: In order to meet the requirement for basic data of coal direct liquefaction in hydrogen-rich gas, data on the high-pressure solubility of methane in atmospheric NO.3 diesel oil of DaGang were collected under the conditions of temperature from 273.45K to 293.75K and pressure from 1.79MPa to 8.06MPa with a self-established apparatus that measured the solubility in the circular way. The average structural parameters of diesel oil were calculated with n-d-M-LP method. The solubility values calculated under the same condition with UNIFAC showed that the average relative errors to the experimental values were and UNIFAC method was feasible. 3.36% Keywords: methane; sol