期刊文献+

渣油加氢转化前后沥青质的分子组成变化 被引量:9

Characterization of the molecular composition of asphaltene from heavy petroleum residue before and after hydrotreating
原文传递
导出
摘要 沥青质是造成渣油加氢过程中结焦和催化剂失活的主要因素,深入研究渣油加氢转化前后沥青质的分子组成变化对于改进渣油加氢工艺有着重要的指导意义.本文采用傅里叶变换离子回旋共振质谱仪(FT-ICR MS)研究了塔河减渣加氢转化过程中沥青质组分的分子组成差异.为了减少沥青质分子之间的相互干扰和抑制,通过固相萃取技术对渣油加氢前后得到的沥青质进行了分离,并对比了其中主要化合物在分离前后的详细分子组成.利用固相萃取技术分离之后,还可以对加氢后沥青质中微量的卟啉钒化合物进行富集,并研究了在渣油加氢前后沥青质中的卟啉钒化合物的分子组成变化.研究表明,对沥青质样品进行更细致的分离可以得到丰富、全面的沥青质分子组成数据,为石油加工提供更有价值的分子结构信息. Asphaltene is the main source of coking and catalyst deactivation during hydrotreating of heavy oils, and the variation of molecular composition of asphaltene during hydrotreating is crucial for improving the refining processes of heavy oils. In this work, asphaltene obtained from Tahe vacuum residue was characterized by Fourier transform ion cyclotron resonance mass spectrometry(FT-ICR MS) before and after hydrotreating. The asphaltene samples were separated by solid-phase extraction(SPE) to reduce the matrix effect and ionization suppression, and the sub fractions were also measured by FT-ICR MS. It was also found that vanadyl porphyrins was enriched by SPE method, making the detection of trace amount of vanadyl porphyrins possible after hydrotreating. The structural differences of vanadyl porphyrins during hydrotreating were studied by FT-ICR MS. It is proved in this work that pre-separation is helpful for providing comprehensive molecular composition of asphaltene samples, which is valuable for refining industry.
作者 王威 董明 蔡新恒 宋春侠 刘颖荣 刘泽龙 田松柏 Wei Wang;Ming Dong;Xinheng Cai;Chunxia Song;Yingrong Liu;Zelong Liu;Songbai Tian(Sinopec Research Institute of Petroleum Processing, Beijing 100083, China)
出处 《中国科学:化学》 CAS CSCD 北大核心 2018年第4期442-450,共9页 SCIENTIA SINICA Chimica
关键词 沥青质 渣油加氢 傅里叶变换离子回旋共振质谱仪 固相萃取 卟啉钒 asphaltene, hydrotreating, FT-ICR MS, SPE, vanadyl porphyrins
  • 相关文献

参考文献4

二级参考文献52

  • 1陶宗乾,王家寰,彭全铸.固定床渣油加氢技术的研究[J].炼油设计,1994,24(2):10-14. 被引量:2
  • 2陈培榕,刘密新,吴筑平,张艳,廖志勤,黄第藩.石油卟啉在反相─CN/C_(18)组合柱高效液相色谱中的分离与分析[J].色谱,1994,12(6):426-428. 被引量:8
  • 3胡文景,孙振光.渣油加氢处理(RHT)系列催化剂的工业生产和应用[J].石油炼制与化工,2005,36(7):55-58. 被引量:6
  • 4石亚华,孙振光,戴立顺,聂红.渣油加氢技术的研究 Ⅰ.RHT固定床渣油加氢催化剂的开发及应用[J].石油炼制与化工,2005,36(10):9-13. 被引量:4
  • 5聂红,杨清河,石亚华等.石油资源的有效利用.中国工程院化工、冶金与材料工程学部第五届学术会议论文集.北京:中国石化出版社,2005.160-165
  • 6YEN T F.The Role of Trace Metals in Petroleum[M].Michigan:Ann Arbor Science Publishers INC,1975.
  • 7NAKAMURA A,KASHIMOTO T.Determination of total organic nitrogen and organometallic nickel in oil sediments and marine products[J].Earth and Environmental Science,1979,22(1):345-349.
  • 8MACKENZIE A S,QUIRKE J M E,MAXWELL J R.Molecular parameters of maturation in the Toarcian shales,Paris Basin,France Ⅱ Evolution of metalloporphyrins[J].Physics and Chemistry of the Earth,1980,12:239-248.
  • 9HOHN M E,HAJIBRAHIM S K,EGLINTON G.High-pressure liquid chromatography of petroporhyrins:Evaluation as a geochemical fingerprinting method by principal components analysis[J].Chemcal Geology,1982,37(3-4):229-237.
  • 10FREEMAN D H,SWAHN I D,HAMBRIGHT P.Spectrophotometry and solubility properties of nickel and vanadyl porphyrin complexes[J].Energy and Fuels,1990,4(6):699-704.

共引文献77

同被引文献88

引证文献9

二级引证文献37

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部