期刊名称：Majalah Iptek = IPTEK : The Journal for Technology and Science
印刷版ISSN：0853-4098
电子版ISSN：2088-2033
出版年度：2019
卷号：30
期号：2
页码：36-40
DOI：10.12962/j20882033.v30i2.5005
出版社：IPTEK
摘要：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.
