Effect of KxFeyOz on chemical looping catalytic combustion of coal

ZHAI Chun-hua; GUO Wan-jun; SHEN Lai-hong; CHEN Ding-qian; SONG Tao; XIAO Jun

Volume 42 Issue 03

Mar. 2014

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Article Navigation > Journal of Fuel Chemistry and Technology > 2014 > 42(03): 309-315

ZHAI Chun-hua, GUO Wan-jun, SHEN Lai-hong, CHEN Ding-qian, SONG Tao, XIAO Jun. Effect of KxFeyOz on chemical looping catalytic combustion of coal[J]. Journal of Fuel Chemistry and Technology, 2014, 42(03): 309-315.

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ZHAI Chun-hua, GUO Wan-jun, SHEN Lai-hong, CHEN Ding-qian, SONG Tao, XIAO Jun. Effect of K_xFe_yO_z on chemical looping catalytic combustion of coal[J]. Journal of Fuel Chemistry and Technology, 2014, 42(03): 309-315.

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Effect of K_xFe_yO_z on chemical looping catalytic combustion of coal

Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing 210096, China

Received Date: 2013-09-03
Rev Recd Date: 2013-11-06
Publish Date: 2014-03-31

Abstract

Abstract

The calcium aluminate cement as a cheap material was used to produce a novel cement-supported Fe₂O₃ oxygen carrier via mechanically mixing and extrusion method. The ratio of cement addition and the effect of K as additive on the CLC performance of coal were experimentally investigated in a single fluidized bed reactor. The results suggest that there is a stable product of Ca₂Al₂SiO₇ formed in the oxygen carriers. The coal gasification rate and conversion rate are significantly accelerated by K in the oxygen carrier samples. A stable phase of K₂Fe₂₂O₃₄ is found in the oxygen carriers. The catalytic effect of K in the coal CLC process depends on the phase transformation of K₂Fe₂₂O₃₄ and KFeO₂.
- chemical looping combustion,
- carbon capture,
- oxygen carrier,
- catalytic

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References(19)

References

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