Migration and transformation behaviors of vanadium (V) with different occurrence modes during combustion of high sulfur petroleum coke

XIONG Qing-an; LI Jia-zhou; LI Chun-yu; GUO Shuai; ZHAO Jian-tao; FANG Yi-tian

Volume 46 Issue 2

Feb. 2018

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Article Navigation > Journal of Fuel Chemistry and Technology > 2018 > 46(2): 145-151

XIONG Qing-an, LI Jia-zhou, LI Chun-yu, GUO Shuai, ZHAO Jian-tao, FANG Yi-tian. Migration and transformation behaviors of vanadium (V) with different occurrence modes during combustion of high sulfur petroleum coke[J]. Journal of Fuel Chemistry and Technology, 2018, 46(2): 145-151.

Citation:

XIONG Qing-an, LI Jia-zhou, LI Chun-yu, GUO Shuai, ZHAO Jian-tao, FANG Yi-tian. Migration and transformation behaviors of vanadium (V) with different occurrence modes during combustion of high sulfur petroleum coke[J]. Journal of Fuel Chemistry and Technology, 2018, 46(2): 145-151.

Citation:

XIONG Qing-an, LI Jia-zhou, LI Chun-yu, GUO Shuai, ZHAO Jian-tao, FANG Yi-tian. Migration and transformation behaviors of vanadium (V) with different occurrence modes during combustion of high sulfur petroleum coke[J]. Journal of Fuel Chemistry and Technology, 2018, 46(2): 145-151.

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Migration and transformation behaviors of vanadium (V) with different occurrence modes during combustion of high sulfur petroleum coke

1.
Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China

Funds:

the National Natural Science Foundation of China 21576276

the National Natural Science Foundation of China 21506241

Strategic Priority Research Program of the Chinese Academy of Sciences XDA07050100

More Information

Corresponding author: ZHAO Jian-tao, Tel/Fax: 0351-2021137, E-mail: zhaojt@sxicc.an.cn
Received Date: 2017-09-22
Rev Recd Date: 2018-01-02

Available Online: 2021-01-23

Publish Date: 2018-02-10

Abstract

Abstract

The occurrence modes and migration behavior of vanadium were investigated by sequential chemical extraction combined with ICP-OES during combustion of high-sulfur petroleum coke. The chemical reaction mechanism was discussed based on thermodynamic analysis. The vanadium in raw petroleum coke is mainly associated with organic matter and stable forms. With increasing temperature organic V disappear and the released vanadium could react with minerals such as Ca, K, Na, Fe to form different vanadium species including water soluble and ion exchange state, carbonates and Fe-Mn oxides. Steady-state vanadium is mainly combined with other minerals to form amorphous substance existing in petroleum coke. These amorphous substances might transform and release vanadium species at high combustion temperatures. The V volatility is correlated with temperature and burn out rate. The volatility may sharply rise because organic matter decomposed and released gaseous VO₂ above 1100℃.
- petroleum coke,
- combustion,
- vanadium,
- occurrence mode,
- migration behavior

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References(16)

References

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