文献类型：期刊文献

中文题名：溶剂脱沥青抽提段的模拟与优化

英文题名：Simulation and optimization of the extract segment of solvent deasphalting plant

作者：李武东[1];杜平安[1,2];曹发海[1,3];应卫勇[1];房鼎业[1]

机构：[1]华东理工大学化学工程系,上海200237;[2]中国石油化工集团股份有限公司洛阳分公司,河南洛阳471012;[3]华东理工大学化学工程联合国家重点实验室,上海200237

年份：2009

卷号：26

期号：4

起止页码：455

中文期刊名：计算机与应用化学

外文期刊名：Computers and Applied Chemistry

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：Aspen;Plus;丙烷溶剂脱沥青;萃取;模拟;热力学方法

外文关键词：Aspen Plus, propane SDA, extract, simulation, thermodynamic method

摘要：溶剂脱沥青装置是炼油企业重要的加工单元之一,本文首次以Aspen Plus为工具模拟研究丙烷溶剂脱沥青过程抽提段,选用其中的萃取(EXTRACT)模块,考察不同的热力学方法对萃取的影响,筛选出萃取效果较好的PSRK法。并优化减压渣油虚拟组分的族组成分布,模拟计算结果为:99.97%的石蜡组分(Paraffinics)集中在萃取相中,基组分(Primitive)在轻重两相中的分率各为:46.56%和53.44%,而萃余相中则集中了85.92%的芳香组分(Aromatics)和91.21%的金属等杂质(Impurities)。与现场数据相比,脱沥青油(Deasphalted oil,DAO)流量的相对误差为1.85%,其余误差都不超过1%。
Solvent deasphalting （SDA） plant was one of the important plants in oil refining enterprises. This study used Aspen Plus for the first time to simulate the extract segment of a propane SDA plant, chose the EXTRACT module and investigated the effect of several different thermodynamic methods on the extract process. The PSRK method which performed a better result for the extraction was adopted finally. Then, under the given conditions of mass balance of every assay pseudo-component and volume balance of total vacuum residue, the liquid composition of every assay pseudo-component was optimized. Simulation results show that 99.97% of paraffinic components are extracted in the solvent rich phase while 85. 92% of aromatic components and 91.21% of the impurities components remain in the asphaltic residue. Primitive components were distributed almost equally in both phases. Compared with the operating data, the flow rate of DAO （ Deasphalted oil） was a little less than that of it and the relative error was 1.85%, while the other relative errors were all within 1%.