岩沥青中钒卟啉化合物分子组成分析  

Molecular composition of vanadyl porphyrins in the gilsonite

作　　者：郑方 朱光有[2] 陈志强 赵秋利 史权[1] ZHENG Fang;ZHU Guang-you;CHEN Zhi-qiang;ZHAO Qiu-li;SHI Quan(State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Beijing 102249,China;Research Institute of Petroleum Exploration and Development,Petro China,Beijing 100083,China;Guangyuan Shengtong Mining co.LTD,Guangyuan 628000,China)

机构地区：[1]中国石油大学(北京)重质油国家重点实验室,北京102249 [2]中国石油勘探开发研究院,北京100083 [3]广元圣通矿业有限公司,四川广元628000

出　　处：《燃料化学学报》2020年第5期562-567,I0003,共7页Journal of Fuel Chemistry and Technology

摘　　要：以四川广元岩沥青为研究对象,分离出不同性质的亚组分,通过元素分析、紫外可见光谱、高温气相色谱、高分辨率质谱等手段研究钒卟啉类化合物的分子组成,并与塔河稠油中的卟啉化合物进行对比。结果表明,岩沥青中含有大量的金属元素,钒元素含量高达3888μg/g,检测到大量钒卟啉类化合物,以C28-C34初卟啉(ETIO)和脱氧叶红初卟啉(DPEP)为主;与塔河原油相比,DPEP具有明显的相对优势,说明尽管岩沥青具有很高的分子缩合度,但其地质热成熟度较低。青川岩沥青储量巨大、金属含量丰富,具有重要的潜在利用价值。A gilsonite from Qingchuan(Sichuan province,China)was separated into several fractions and characterized by various techniques.The vanadyl porphyrins were determined by inductively coupled plasma optical emission spectrometer,ultraviolet-visible,high-temperature gas chromatography atomic emission detection,and positive-ion electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry.The results show that the gilsonite contains a large amount of metal elements,especially the vanadium content is as high as 3888μg/g.A large number of vanadyl porphyrins are detected,in which the deoxophylloerythroetio porphyrins are the most abundant,indicating high molecular condensation but low thermal maturity.The huge reserves and high metal content imply important utilization value for this natural source.

关 键 词：岩沥青 钒 卟啉化合物 高分辨质谱 

分 类 号：TE622[石油与天然气工程—油气加工工程]