THE DETECTION AND MODELING STUDIES OF ASPHAL TENE DEOPSITION THRESHOLDS

doi:10.7623/syxb199903017

Editorial office of ACTA PETROLEI SINICA ›› 1999, Vol. 20 ›› Issue (3): 91-95.DOI: 10.7623/syxb199903017

• Petroleum Engineering • Previous Articles

THE DETECTION AND MODELING STUDIES OF ASPHAL TENE DEOPSITION THRESHOLDS

Yang Zhao¹

Petroleum University, Beijing

Received:1997-12-11 Online:1999-05-25 Published:2010-05-21

沥青质沉淀点的测定与模型化计算

杨照¹, 林雄森², 马昌峰², 郭天民 ²

1. 北京石化工程公司;
2. 石油大学北京

作者简介:杨照,男,1969年7月出生。199年9月于石油大学(北京)获博士学位。现为中国石化北京石油化工工程公司工艺系统室工程师。通讯处:北京市朝阳区安撇北里安园21号楼。邮政编码;100101。

Abstract

Abstract: A set of light transmission instrument for detecting the onset of asphaltene deposition have been designed and set up independently. The onsets of asphaltene deposition of asphaltene+toluene and crude oil+toluene solutions with normal alkanes have been detected using the light transmission method.The Hirschberg solubility model based on the Flory-Huggins polymer solution theory has been applied and solubility parameters of asphaltene and crude oil have been obtained by fitting the experimental data.Great difference has been found existed between the solubility parameter of crude oil regressed from experimental data and that of calculated by EOS method. Solubility parameter of asphaltene extracted from oil is also different from that of exist in origin state.

Key words: asphaltene, crude oil, deposition, equation of state, solubility

摘要： 通过自行设计、组装了一套采用透光率法测定原油体系沥青质沉淀点的实验装置,并采用该仪器测定了6个浓度的沥青质+甲苯体系及4个浓度的原油+甲苯体系的正戊烷和正己烷沥青质沉淀点。模型计算中采用目前具有代表性的Hirschberg沥青质沉淀溶解度模型以拟合实验数据。结果发现由实验数据回归得到的原油溶解度参数明显高于状态方程法的计算结果;原始条件下沥青质的溶解度参数值明显低于被提纯后沥青质的溶解度参数值。

关键词: 沥青质, 原油, 沉淀, 状态方程, 溶解度

Yang Zhao. THE DETECTION AND MODELING STUDIES OF ASPHAL TENE DEOPSITION THRESHOLDS[J]. Editorial office of ACTA PETROLEI SINICA, 1999, 20(3): 91-95.

杨照, 林雄森, 马昌峰, 郭天民 . 沥青质沉淀点的测定与模型化计算[J]. 石油学报, 1999, 20(3): 91-95.

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THE DETECTION AND MODELING STUDIES OF ASPHAL TENE DEOPSITION THRESHOLDS

沥青质沉淀点的测定与模型化计算

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