An Experimental Study of a Pilot Plant Deasphalting Process in Subcritical and Supercritical Conditions

被引：5

作者：

Lodi, L. ^{[1
]}

Cardenas Concha, V. O. ^{[1
,2
]}

Souza, R. A. ^{[1
]}

Medina, L. C. ^{[3
]}

Filho, R. M. ^{[4
]}

Wolf Maciel, M. R. ^{[1
]}

机构：

[1] Univ Campinas UNICAMP, Sch Chem Engn, LDPS, Campinas, SP, Brazil

[2] Fed Univ Sao Paulo UNIFESP, Sao Paulo, Brazil

[3] Petrobras SA, Ctr Res & Dev CENPES PDEDS, Rio De Janeiro, Brazil

[4] Univ Campinas UNICAMP, Sch Chem Engn, LOPCA, Campinas, SP, Brazil

来源：

PETROLEUM SCIENCE AND TECHNOLOGY | 2014年 / 32卷 / 22期

基金：

巴西圣保罗研究基金会;

关键词：

subcritical; extraction; petroleum; asphaltenes; supercritical; deasphalting; CHROMATOGRAPHY;

D O I：

10.1080/10916466.2013.865650

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：

The authors aimed to study the deasphalting process on laboratory scale through the design and development of a supercritical extraction experimental unit. Extractions in subcritical and supercritical conditions were carried out using petroleum residue as feedstock and propane as solvent. Temperature and pressure were manipulated in order to maintain the solvent in the required conditions, thus facilitating the extraction process and avoiding sharp changes in the system. In supercritical conditions, the products in the deasphalted oil stream present adequate characteristics for the production of lubricant oils and those in the asphalt residue stream present an elevated concentration of asphalt molecules.

引用

页码：2659 / 2665

页数：7

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