Change of asphaltene and resin properties after catalytic aquathermolysis

作     者：Yi Yufeng Li Shuyuan Ding Fuchen Yu Hang Yi Yufeng1,Li Shuyuan1,Ding Fuchen1,2 and Yu Hang1 1 School of Chemical Science and Engineering,China University of Petroleum (Beijing),Beijing 102249,China 2 School of Chemical Engineering,Beijing Institute of Petrol-chemical Technology,Beijing 102617,China

作者机构：School of Chemical Science and Engineering China University of Petroleum （Beijing） Beijing 102249 China School of Chemical Engineering Beijing Institute of Petrol-chemical Technology Beijing 102617 China 

出 版 物：《Petroleum Science》 (石油科学（英文版）)

年 卷 期：2009年第6卷第2期

页      面：194-200页

核心收录：

学科分类：0820[工学-石油与天然气工程] 081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 082002[工学-油气田开发工程] 

基　　金：supported by the Chinese Natural Science Foundation (No. 40472061) Funding Project for Academic Human Resources Development in Institutions of Higher Learning of Beijing Municipality (No. PXM2007-014222-044654) Funding Project of Organization Department of Beijing Municipal Party Committee (No. 20071D0500500163) 

主　　题：Asphaltene resin aquathermolysis molecular weight catalyst 

摘      要：Resin and asphaltene were separated from Liaohe heavy oil. Catalytic aquathermolysis of asphaltene and resin was investigated by using water soluble catalysts （NiSO4 and FeSO4） and oil soluble catalysts （nickel naphthenate and iron naphthenate）. Before and after aquathermolysis, the properties of the resin and asphaltene was compared by means of ultimate analysis, vapor pressure osmometer （VPO） average molecular weight, X-ray diffraction （XRD）,^13C and ^1H nuclear magnetic resonance （NMR）. The conversion sequence was as follows： No-catalyst〈NiSO4〈FeSO4〈nickel naphthenate〈iron naphthenate. In the presence of catalysts, the amount of H2 and CO increased significantly, while H2S in the gas product decreased. The molecular weight of asphaltene and resin increased after reaction without catalyst. But the catalysts restrained this trend. The H/C ratio of asphaltene and resin decreased after reaction. From the results of average structural parameters and molecular weight, it was found that asphaltene and resin were partly aggregated after aquathermolysis.