Experimental study on transformation characteristics of nitrogen during coal/biomass co-pyrolysis in CO<sub>2</sub> atmosphere

ZHANG Heng; WANG Qinhui; LIANG Xiaorui; LUO Zhongyang; FANG Mengxiang

doi:10.19666/j.rlfd.201810198

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Experimental study on transformation characteristics of nitrogen during coal/biomass co-pyrolysis in CO₂ atmosphere

更新时间：2025-09-28

- Experimental study on transformation characteristics of nitrogen during coal/biomass co-pyrolysis in CO₂ atmosphere
- Thermal Power Generation Vol. 48, Issue 4, Pages: 8-14(2019)
- 作者机构：
  
  浙江大学能源清洁利用国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.201810198
  CLC： TQ530.2
- Published Online：01 April 2019，
  
  Published：2019
- 稿件说明：
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ZHANG Heng, WANG Qinhui, LIANG Xiaorui, et al. Experimental study on transformation characteristics of nitrogen during coal/biomass co-pyrolysis in CO₂ atmosphere[J]. Thermal power generation, 2019, 48(4): 8-14.
DOI：

ZHANG Heng, WANG Qinhui, LIANG Xiaorui, et al. Experimental study on transformation characteristics of nitrogen during coal/biomass co-pyrolysis in CO₂ atmosphere[J]. Thermal power generation, 2019, 48(4): 8-14. DOI： 10.19666/j.rlfd.201810198.

摘要

本文在卧式管式炉实验装置上进行了平凉煤、麦秆及其混合物料分别在CO_2和Ar气氛下700～900℃范围内的热解特性实验研究

获得CO_2气氛对热解过程氮元素迁移的影响以及煤/生物质混合热解过程中氮元素转化特性。实验发现:在高温时

CO_2气氛可使燃料发生气化反应

促进燃料中的氮元素析出进入挥发分中

降低半焦氮含量

并提高2种燃料的NH3及N2产率和麦秆的HCN产率;煤/生物质混合热解过程发生了协同作用

降低了HCN和NH3的产率

并提高了N2在700℃的产率。

Abstract

Pyrolysis experiments of Pingliang coal

wheat straw and their blends were carried out in a tube furnace in CO_2 and Ar atmosphere at 700～900 ℃

to investigate the nitrogen transformation characteristics during coal-biomass co-pyrolysis in CO_2 atmosphere. The results show that

at high temperatures

gasification occurs in CO_2 atmosphere

which promotes the nitrogen release from the fuel and enter the volatile matters

which reduces the nitrogen content in char

so the NH_3 and N_2 yield of Pingliang coal and wheat straw as well as the HCN yield of wheat straw rises. Interactions which occur in co-pyrolysis suppress the HCN and NH_3 yield but promote production of N_2 at 700 ℃.

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Related Author

JIN Ke

ZHOU Yangjun

WANG Xinbao

WANG Junqi1

FANG Mengxiang2

LUO Zhongyang2

CEN Kefa2 1.Nanjing Industrial Professional Technological College

WANG Tingxu

Related Institution

China Huadian Corporation Zhejiang Branch

Department of Electrical Engineering, Nanjing Industrial Vocational and Technical College

南京工业职业技术学院电气系

浙江大学能源清洁利用国家重点实验室

Central European School of Clean and Renewable Energy, Huazhong University of Science and Technology

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Experimental study on transformation characteristics of nitrogen during coal/biomass co-pyrolysis in CO2 atmosphere

DOI：10.19666/j.rlfd.201810198

摘要

Abstract

关键词

Keywords

references

Experimental study on transformation characteristics of nitrogen during coal/biomass co-pyrolysis in CO₂ atmosphere