Characteristics of Chlorine Emission during Rice Husk Combustion

DOI

10.2991/edep-18.2018.31How to use a DOI?

Keywords

Chlorine in rice husk; micron fuel; combustion atmosphere; reaction kinetic

Abstract

The erosion of heating surfaces due to chloride release from direct rice husk combustion was investigated. Relationships between chloride release from rice-husk combustion and different influence factors were studied, and chloride release models were established. A gas-state chloride absorption testing platform was built according to the characteristics of chloride production from rice husk combustion in real boilers. The chloride release under different designing parameters was absorbed by a NaOH solution, and the chloride release laws during rice husk combustion were investigated. It was found the chloride release was accelerated in a multistage way with the rise of combustion temperature. The chloride release rate increased up to 85% with the prolonging of combustion time. Under the strong oxidative atmosphere, the chloride release rate increased significantly and rose by about 2 times compared with the weak oxidative atmosphere. Increasing the vapor concentration would promote the chloride release from rice husk combustion. A larger size of rice husk further hindered chloride release and decomposition, and took longer time to release the same amount of chloride. Chloride release from rice husk was harder than from wood dust, and chloride release and combustion were synchronous. Chloride release during rice husk combustion was a zero-order reaction.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Rong CHEN
AU  - Yan-Yu GAO
AU  - Tian-Shun ZHANG
AU  - Jia-Xin ZHENG
AU  - Yu AI
AU  - Yue RAO
AU  - Shao-Jie ZHANG
PY  - 2018/10
DA  - 2018/10
TI  - Characteristics of Chlorine Emission during Rice Husk Combustion
BT  - Proceedings of the 2018 International Conference on Energy Development and Environmental Protection (EDEP 2018)
PB  - Atlantis Press
SP  - 194
EP  - 201
SN  - 2352-5401
UR  - https://doi.org/10.2991/edep-18.2018.31
DO  - 10.2991/edep-18.2018.31
ID  - CHEN2018/10
ER  -