文献类型：期刊文献

英文题名：Process analysis of the extract unit of vacuum residue through mixed C4 solvent for deasphalting

作者：Cao, Fahai[1];Jiang, Dan[1];Li, Wudong[1];Du, Ping'an[1];Yang, Guizhong[1];Ying, Weiyong[1]

机构：[1]E China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China

年份：2010

卷号：49

期号：1

起止页码：91

外文期刊名：CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION

收录：;EI(收录号：20100512676692);WOS:【SCI-EXPANDED(收录号:WOS:000275133400013)】；

基金：We would like to appreciate the financial support from the project (Grant No. 108050) of SINOPEC, China. The authors thank the senior engineer, Mr. Mannian REN in Luoyang Petrochemical Complex of SINOPEC, China, for his valuable technical assistance.

语种：英文

外文关键词：Mixed C4 solvent; Solvent deasphalting (SDA); Deasphalted oil (DAO); Simulation

摘要：By employing the EXTRACT module in Aspen Plus Software with the aid of selected PSRK equation from our previous work [W. Li, P. Du, F. Cao, W. Ying, D. Fang, Simulation and optimization of the extract segment of solvent deasphalting plant, Computers and Applied Chemistry, 26 (2009) 455-460][18], this work simulated a solvent deasphalting (SDA) process with mixed C4 solvent and the feedstock of vacuum residue (VR) obtained from a mixed Crude oil (Zhongyuan oil:Tahe oil:Changqing oil:Oman crude oil:Zafiro crude oil = 35:5:2:40:18, wt/wt). The feed of VR was lumped as paraffinic. primitive and aromatic components according to their calculated K-UOP values. The relative errors not more than 3.94% illustrated the simulated results are comparable with the industrial data for both feedstock (VR and mixed C4 solvent) and products (deasphalted oil-DAO and deoiled asphalt-DOA). The DAO yield was predicted to reduce to 47.2% from 58.0% with increasing temperature of mixed C4 solvent from 100 to 120 degrees C under operating model-I, but increased from 51.6% to 56.1% with solvent-VR ratio up to 6.5 from 4.5. In addition, a heavier mixed C4 solvent would facilitate remarkable improvement of DAO yield but deteriorate its quality. (C) 2009 Elsevier B.V. All rights reserved.