Study on collection of the particles in waste gasification gas by wet electrostatic precipitator

DOI

10.2991/iceep-18.2018.284How to use a DOI?

Keywords

wet electrostatic precipitator; waste gasification gas; collection efficiency; gas discharge;

Abstract

Thermal pyrolysis of city life garbage gas is an effective means to achieve waste reduction, harmless treatment and resource utilization. However, the particles in the fuel gas has a detrimental effect on its recycling. It must be purified before recycling. The waste gasification gas purification process by using wet electrostatic precipitator and its feasibility are presented in the paper. The characteristics of waste gasification gas corona discharge are studied under the condition of changing gas pressure, polar matching type and electric field gas speed. Experiment on collection of the dust from a garbage power plant was carried out in a wet electrostatic precipitator. The results show that: waste gasification gas can form a steady corona current in the electrostatic precipitator, and the corona discharge current decreases with the gas pressure. In the main gas components, the increase of CO content is beneficial to the gas corona discharge while the CO2 is opposite. The corona discharge performance is the best when the polar distance is 300mm and the polar matching type is the RS four tooth awn barbed wire to 480C type plate. For the above types of wet electrostatic precipitator, when the water spraying pressure is 0.4 MPa, the electric field gas speed is 1.1 m/s, the collection efficiency of the particles in waste gasification gas will be up to 97.5%. For the municipal solid waste pyrolysis gas which CO component is more than 20%, the wet electrostatic precipitator can be used for purifying its particles effectively.

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  - Lichun Xiao
AU  - Meng Zhang
AU  - Yuchuan Wang
PY  - 2018/09
DA  - 2018/09
TI  - Study on collection of the particles in waste gasification gas by wet electrostatic precipitator
BT  - Proceedings of the 2018 7th International Conference on Energy and Environmental Protection (ICEEP 2018)
PB  - Atlantis Press
SP  - 1578
EP  - 1585
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceep-18.2018.284
DO  - 10.2991/iceep-18.2018.284
ID  - Xiao2018/09
ER  -