The Experimental Study of The Effect of Air Preheating in MSW Pellet Multi-Stage Downdraft Gasifier

D. R. Ependi, A. R. Saleh, B. Sudarmanta
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引用次数: 3

Abstract

High municipal solid waste generation in Indonesia can be used to substitute fossil energy. MSW is converted into pellet form to uniform moisture content. This study aimed to improve the performance of gasified downdraft gasifier processes by heating air inlets in pyrolysis, oxidation, and reduction zones. Variations of air temperature inlet in these zones are 80 oC, 110 oC, 150 oC, and 210oC. The results of this study obtained the highest air temperature at 210 oC for 969 oC. The syn-gas compositions (CO and H2) at an increase in temperature of 80-210 oC increased from 21.4%, 9.99%, and 1.77% to 22.79%, 10.28%, and 1, 79% respectively. Cold gas efficiency increased by 5.13 % and the lowest tar level was 34.39 mg/Nm3. Based on the result of research, preheated air can improve the efficiency of gasification and reduce tar content in the syngas.
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城市生活垃圾颗粒多级下吸式气化炉空气预热效果的实验研究
印度尼西亚的高城市固体废物产生量可用于替代化石能源。生活垃圾被转化成颗粒形式,以均匀的水分含量。本研究旨在通过加热热解、氧化和还原区的空气入口来提高气化下送风气化炉工艺的性能。这些区域的空气入口温度变化为80℃、110℃、150℃和210℃。本研究的结果表明,在969℃时,最高空气温度为210℃。温度升高80 ~ 210 oC时,CO和H2的组分分别由21.4%、9.99%和1.77%增加到22.79%、10.28%和1.79%。冷气效率提高5.13%,最低焦油含量为34.39 mg/Nm3。研究结果表明,预热空气可以提高气化效率,降低合成气中的焦油含量。
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审稿时长
9 weeks
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