NO<sub><em>x</em></sub> release in chemical looping combustion of biomass based on hematite

XIAO Shen; SHEN Lai-hong; XIAO Jun; NIU Xin; GU Hai-ming; SONG Tao

Volume 43 Issue 04

Apr. 2015

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XIAO Shen, SHEN Lai-hong, XIAO Jun, NIU Xin, GU Hai-ming, SONG Tao. NOx release in chemical looping combustion of biomass based on hematite[J]. Journal of Fuel Chemistry and Technology, 2015, 43(04): 490-498.

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XIAO Shen, SHEN Lai-hong, XIAO Jun, NIU Xin, GU Hai-ming, SONG Tao. NO_x release in chemical looping combustion of biomass based on hematite[J]. Journal of Fuel Chemistry and Technology, 2015, 43(04): 490-498.

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NO_x release in chemical looping combustion of biomass based on hematite

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

Received Date: 2014-10-28
Publish Date: 2015-04-30

Abstract

Abstract

Nitrogen emission during chemical looping combustion (CLC) of rice husk based on hematite in a batch fixed bed reactor was studied. Different variables affecting the process, such as reduction temperature and steam content, were tested. The results show that higher reduction temperature results in a higher carbon conversion which reaches the highest value when the steam flow is 1.0 g/min. Furthermore, there are no NO₂ detected at all experiments. The rise of reduction temperature from 750 to 900 ℃ could contribute to the rise of NO, whereas the concentration of N₂O reaches the highest value at 850 ℃. Both N₂O and NO increase remarkably with the increase of steam flow. Nevertheless, the increasing rate of NO is faster than that of N₂O. Besides, KAlSi₃O₈ is detectable in the reduced oxygen carrier, attributing to the reaction of K in biomass with hematite.
- chemical looping combustion,
- biomass,
- hematite,
- NO_x

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References(30)

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