Comparable Study on Celadon Production Fueled by Methanol and Liquefied Petroleum Gas at Industry Scale

Yihong Song, Shangbo Han, Teng Hu, Huajie Lyu, Nuo Chen, Xiao Zhang, Saisai Lin, Chenghang Zheng, Peng Liu () and Xiang Gao ()
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Yihong Song: State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
Shangbo Han: State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
Teng Hu: State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
Huajie Lyu: State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
Nuo Chen: State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
Xiao Zhang: State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
Saisai Lin: State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
Chenghang Zheng: State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
Peng Liu: State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
Xiang Gao: State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China

Energies, 2025, vol. 18, issue 8, 1-20

Abstract: As a major contributor to industrial energy consumption and carbon emissions, the kiln industry faces increasing pressure to adopt cleaner energy sources. This study investigated the combustion characteristics, redox processes in celadon firing, product quality, and pollutant emissions for an industry furnace with methanol and liquefied petroleum gas (LPG) as kiln fuels. Methanol combustion reduced firing time by 17.4% due to the faster temperature rise during oxidation and holding phases and provided a more uniform and stable flame, compared with LPG cases. Significant reductions in emissions were observed when methanol is used as fuel. For example, NO concentration is reduced by 70.89%, 37.43% for SO 2 , 93.67% for CO, 45.07% for CO 2 , and 85.89% for CH 4 . The methanol-fired celadon exhibited better quality in terms of the appearance and threshold stress–strain value. The chemical analysis results show that K/O element ratio increased from 8.439% to 11.706%, Fe/O decreased from 4.793% to 3.735%, Al/O decreased from 33.445% to 31.696%, and Si/O increased from 76.169% to 89.825%. These findings demonstrate the potential of methanol as a sustainable kiln fuel, offering enhanced combustion efficiency, reduced emissions, and improved ceramic quality.

Keywords: kilns; combustion; methanol; pollutants; carbon emissions (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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