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Citation: 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(3): 309-315. shu

Effect of KxFeyOz on chemical looping catalytic combustion of coal

  • 1.

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

  • Corresponding author: SHEN Lai-hong, 
  • Received Date: 3 September 2013
    Available Online: 6 November 2013

    Fund Project: 国家自然科学基金(51276037) (51276037)江苏省科技支撑项目(BE2012166)。 (BE2012166)

  • 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.
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