期刊
PETROLEUM SCIENCE AND TECHNOLOGY
卷 33, 期 2, 页码 203-210出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/10916466.2014.895381
关键词
metals; distribution; oil sand bitumen; thermal process; metalloporphyrins
资金
- China National Petroleum Corporation (CNPC) Foundation under the Grant Research on Key Technology for Heavy Oil Processing [W2008E-1503/01]
- China Education Independent Innovation Research Programme Project [14CX06031A]
- Postgraduate Foundation of Creative Project from China University of Petroleum [CX-1216]
Ni and V deactivate catalysts and promote coking during heavy oil upgrading. Distribution of metals and metalloporphyrins, and its variation in thermal process, would benefit the more efficient upgrading. Majority of metals concentrate in resins and asphaltenes. To thoroughly study the metals distribution in these fractions, both were subdivided. It is indicated that the interactions between metalloporphyrins and asphaltenes play a significant role in metals distribution. Variation of metals distribution showed that the trend metals concentrated into heavier subfractions and was enhanced by thermal treatment and inhibited by hydrogen sources. Synergism was observed between hydrogen and hydrogen donor for the inhibition.
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