| 生物质气化重整合成二甲醚 |
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| 引用本文： | 王铁军,常杰,祝京旭,付严.生物质气化重整合成二甲醚[J].燃料化学学报,2004,32(3):297-300. |
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| 作者姓名： | 王铁军 常杰 祝京旭 付严 |
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| 作者单位： | 1. University of Science and Technology of China, Hefei 230026, China; 2. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510070, China; 3. The University of Western Ontario, Ontario, CANADA N6A 5B9 |
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| 基金项目： | 国家自然科学基金(20206031)~~ |
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| 摘 要： | 以松木粉为原料，采用空气 水蒸气气化制备了富氢气化气，通过添加甲烷重整富氢气化气，调整了合成气化学当量比，在260 ℃、4 MPa、12 000 h－1条件下，对生物质合成气一步法合成二甲醚进行了实验研究。结果表明：引入甲烷重整，活化了富氢气化气中过量的CO2，甲烷的最佳加入量为CH4/CO2=1，生物质碳转化率达到70%以上，尾气中二甲醚选择性达到69.6%。
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| 关 键 词： | 生物质 合成 二甲醚 |
| 文章编号： | 0253-2409(2004)03-0297-04 |
| 收稿时间： | 2003-07-04 |
| 修稿时间： | 2003年7月4日 |
DIMETHYL ETHER SYNTHESIS FROM SYNGAS DERIVED FROM BIOMASS GASIFICATION AND REFORMING |
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| WANG Tie-jun,CHANG Jie,ZHU Jing-xu,FU Yan.DIMETHYL ETHER SYNTHESIS FROM SYNGAS DERIVED FROM BIOMASS GASIFICATION AND REFORMING[J].Journal of Fuel Chemistry and Technology,2004,32(3):297-300. |
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| Authors: | WANG Tie-jun CHANG Jie ZHU Jing-xu FU Yan |
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| Institution: | WANG Tie-jun1,CHANG Jie2,ZHU Jing-xu3,FU Yan2 |
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| Abstract: | The hydrogen-rich syngas produced by air-steam gasification of pine sawdust at 800 ℃ was used for direct dimethyl ether (DME) synthesis. The raw syngas contained large amount of CO2. The stoichiometric adjustment can be accomplished by CH4-CO2 dry reforming reaction with addition of CH4 under the condition of 700 ℃，0.1 MPa. The H2/CO ratio could be adjusted from 1.5 to 2.0. The content of CO2 and CH4 in the exit gas from the reforming reactor was below 3 mol%. The optimized CH4 addition rate was CH4/CO2=1. The results of DME synthesis from biomass syngas under the condition of 260 ℃,4 MPa,12 000 h－1 showed that biomass carbon conversion was above 70% and the selectivity to dimethyl ether in the synthesis reaction was 69.6%. |
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| Keywords: | biomass synthesis dimethyl ether |
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