基于临氢热解反应研究石油沥青质中镍和钒化合物的存在形态  

Morphology study of nickel and vanadium in asphaltenes via hydropyrolysis

作　　者：郑方 王艳斌 霍达 王春燕[1] 曹青[1] 何京[1] 史权[2] ZHENG Fang;WANG Yan-bin;HUO Da;WANG Chun-yan;CAO Qing;HE Jing;SHI Quan(Petrochemical Research Institute of Petro China Company,Limited,Beijing 102206,China;State Key Laboratory of Heavy Oil Processing,China University of Petroleum(Beijing),Beijing 102249,China)

机构地区：[1]中国石油天然气股份有限公司石油化工研究院,北京102206 [2]中国石油大学(北京)重质油国家重点实验室,北京102249

出　　处：《燃料化学学报（中英文）》2023年第10期1383-1388,共6页Journal of Fuel Chemistry and Technology

摘　　要：本研究通过临氢热解方法处理委内瑞拉减压渣油沥青质,通过电感偶合等离子体质谱仪(ICP MS)、紫外-可见光光谱仪(UV-vis)、高温气相色谱-原子发射检测器联用仪(HT GC-AED)和傅里叶变换离子回旋共振质谱(FT-ICR MS)等手段分析表征反应产物,探究沥青质的分子组成与结构,以及镍和钒化合物的存在形态。实验结果表明,随着临氢热解反应温度从330℃升高至410℃,反应产物的甲苯可溶物收率由64%下降至19%,可被GC-AED检测到的镍、钒化合物的含量大幅度升高,镍和钒卟啉的分子组成分布也随反应温度的升高呈现出规律性的变化。The morphology of nickel and vanadium compounds in the asphaltenes were investigated via hydropyrolysis with the help of inductively coupled plasma mass spectrometer(ICP-MS),ultraviolet-visible(UVVis),high-temperature gas chromatography atomic emission detection(HT GC-AED),and positive-ion electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry(+ESI FT-ICR MS).The results showed that the toluene soluble yields of products decreased from 64%to 19%as the hydropyrolysis temperature increased from 330 to 410℃,while the abundance of nickel and vanadium compounds detected by GC-AED increased significantly.The molecular composition distribution of nickel and vanadyl porphyrins showed rhythmic changes with different temperatures in the hydropyrolysis of asphaltenes.

关 键 词：临氢热解 沥青质 镍 钒 卟啉 

分 类 号：TE622[石油与天然气工程—油气加工工程]