Citation: GUO Ai-jun, ZHANG Yan-qi, LIU He, WANG Zong-xian. Effect of heavy metals on characteristics of coke formation during thermal conversion of heavy oils[J]. Journal of Fuel Chemistry and Technology, ;2013, 41(6): 685-690. shu

Effect of heavy metals on characteristics of coke formation during thermal conversion of heavy oils

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State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering China University of Petroleum(East China), Qingdao 266580, China

Corresponding author: GUO Ai-jun,
Received Date: 21 November 2012
Available Online: 23 January 2013
Fund Project: 山东省自然科学基金(ZR2010BM008) (ZR2010BM008)中国石油天然气股份有限公司资助(W2008E-1503/02)。 (W2008E-1503/02)

Three inferior heavy oils from Venezuela, Liaohe and Karamay were chosen as the feedstocks, and the effect of heavy metals on the characteristics of coke formation during thermal conversion process was studied. The results indicate that the higher content of heavy metals, the shorter coke induction period. With the increasing of the content of heavy metals, the yield of coke is increased obviously; the coke particle size becomes larger. Furthermore, the analysis of product from the delayed coking process indicates that the oil with higher content of heavy metals produces a higher coke yield, but a lower yield of liquid.
- vacuum residue,
- heavy metals,
- coke-induction period,
- product distribution
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