Process analysis of the extract unit of vacuum residue through mixed C4 solvent for deasphalting

被引：29

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

来源：

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION | 2010年 / 49卷 / 01期

关键词：

Mixed C4 solvent; Solvent deasphalting (SDA); Deasphalted oil (DAO); Simulation; PHASE-EQUILIBRIA; HEAVY OIL; SOLUBILITY; SEPARATION; MIXTURES; PROPANE; SYSTEMS;

D O I：

10.1016/j.cep.2009.11.013

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

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.

引用

页码：91 / 96

页数：6

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