Citation: ZHANG Qian, LI Qing-feng, ZHANG Lin-xian, JING Xu-liang, YU Zhong-liang, SONG Shuang-shuang, WANG Zhi-qing, FANG Yi-tian. Experimental study on co-pyrolsysis/gasification of deoiled asphalt with different rank of coal[J]. Journal of Fuel Chemistry and Technology, ;2014, 42(4): 392-398. shu

Experimental study on co-pyrolsysis/gasification of deoiled asphalt with different rank of coal

1.
1. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China;

Received Date: 27 October 2013
Available Online: 16 December 2013
Fund Project: 国家重点基础研究发展规划(973计划,2010CB22690603) (973计划,2010CB22690603)中国科学院战略性先导科技专项(XDA07050100)。 (XDA07050100)

In order to find an efficient and feasible technological route to dispose and utilize deoiled asphalt (DOA, a byproduct of solvent deasphalting process), the co-pyrolysis/gasification of DOA with different rank of coal was investigated. A series of isothermal co-pyrolysis experiments were conducted in a fixed bed reactor to observe the characteristics of the char yields and the pattern of the blends. Then a set of non-isothermal experiments were performed by thermogravimetric system to evaluate the gasification characteristics of the chars of coal, DOA and the blends. It is observed that the co-pyrolysis char formed as blocks, while the char yields show that the co-pyrolysis process has no interaction between the two resources. The gasification reactivity of the DOA char is lower than that of lignite and bituminous coal char, and is a bit higher than that of anthracite char. The gasification reactivity of the blended char of DOA with lignite/bituminous coal is found higher than that of the calculated, which clearly demonstrating that the synergetic effect existed during the gasification process, and that is mainly caused by the minerals such as Ca, Fe contained in coal char.
- deoiled asphalt,
- coal,
- co-pyrolysis/gasification,
- catalytic effect
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