| Issue |
E3S Web Conf.
Volume 385, 2023
2023 8th International Symposium on Energy Science and Chemical Engineering (ISESCE 2023)
|
|
|---|---|---|
| Article Number | 02016 | |
| Number of page(s) | 9 | |
| Section | Green Chemical Technology and Energy Saving and Emission Reduction | |
| DOI | https://doi.org/10.1051/e3sconf/202338502016 | |
| Published online | 04 May 2023 | |
Numerical simulation of ethylene combustion characteristics under a new double-layer porous media burner
1. Wuhan Polytechnic University, Wuhan 430023, Hubei, China
2. Pilot plant of eco-environment chemical industry and carbon-neutral transformative technologies, Wuhan 430023, Hubei, China
3. Hubei Provincial Engineering Research Center of Soil and Groundwater Pollution Prevention and Control, Wuhan 430023, Hubei, China
a email: zht974216461@163.com
b email: Lishefeng@163.com
c email: yongzhang@whpu.edu.cn
d email: siyu_ding@hotmail.com
e email: chenpei@whpu.edu.cn
f email: 1697446119@qq.com
g email: ziwei1058@163.com
h email: 794775421@qq.com
The efficient use of energy is an important strategic issue concerning our energy security and double carbon goals. Many industrial waste gases, such as oil refineries, contain a lot of ethylene, which is a gas that is harmful to people and the environment. The use of high-efficiency burners to reduce ethylene emissions is a proven and convenient way, so the improvement and optimization of high-efficiency burners has become a hot research issue nowadays. In this paper, a new porous media burner is designed, and a numerical model of the structure is established based on finite element software. The porous media burner is used to treat low calorific value ethylene and effectively reduce the direct emission of low calorific value ethylene in wastewater treatment and chemical industries. Based on the model, the combustion characteristics and pollutant emission characteristics of premixed gas at different equivalence ratios and different flow rates were investigated. The results show that the maximum combustion temperature can reach 1757K with a constant inlet flow rate of premixed gas and a full combustion at an equivalent ratio of 0.85; the maximum temperature increases rapidly with the increase of flow rate at an inlet flow rate of 0.65-0.85 m/s with a constant equivalent ratio, and the temperature rise effect increases slowly when the flow rate is higher than 0.85 m/s; the new porous media The maximum reduction of pollutant emissions of the new porous media burner reaches 37.9%. This study has a guiding effect on the design and engineering application of porous media combustion devices.
© The Authors, published by EDP Sciences, 2023
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