Design and operation of integrated pilot-scale dimethyl ether synthesis system via pyrolysis/gasification of corncob
文献类型：期刊论文
| 作者 | Li, Yuping1 ; Wang, Tiejun1; Yin, Xiuli1; Wu, Chuangzhi1; Ma, Longlong1; Li, Haibin1; Sun, Li2
|
| 刊名 | fuel
 |
| 出版日期 | 2009-11-01 |
| 卷号 | 88期号:11页码:2181-2187 |
| 关键词 | Pilot-scale Dimethyl ether (DME) Bio-syngas Synthesis |
| ISSN号 | 0016-2361 |
| 通讯作者 | liyp@ms.giec.ac.cn ; wangtj@ms.giec.ac.cn |
| 中文摘要 | the integrated pilot-scale dimethyl ether (dme) synthesis system from corncob was demonstrated for modernizing utilization of biomass residues. the raw bio-syngas was obtained by the pyrolyzer/gasifier at the yield rate of 40-45 nm(3)/h. the content of tar in the raw bio-syngas was decreased to less than 20 mg/nm(3) by high temperature gasification of the pyrolysates under o-2-rich air. more than 70% co2 in the raw bio-syngas was removed by pressure-swing adsorption unit (psa). the bio-syngas (h-2/co approximate to 1) was catalytically converted to dme in the fixed-bed tubular reactor directly over cu/zn/al/hzsm-5 catalysts. co conversion and space-time yield of dme were in the range of 82.0-73.6% and 124.3-203.8 kg/m(cat)(3)/h, respectively, with a similar dme selectivity when gas hourly space velocity (ghsv, volumetric flow rate of syngas at stp divided by the volume of catalyst) increased from 650 h(-1) to 1500 h(-1) at 260 degrees c and 4.3 mpa. and the selectivity to methanol and c-2(+) products was less than 0.65% under typical synthesis condition. the thermal energy conversion efficiency was ca. 32.0% and about 16.4% carbon in dried corncob was essentially converted to dme with the production cost of ca. (sic) 3737/ton dme. cu (111) was assumed to be the active phase for dme synthesis, confirmed by x-ray diffraction (xrd) characterization. |
| 英文摘要 | the integrated pilot-scale dimethyl ether (dme) synthesis system from corncob was demonstrated for modernizing utilization of biomass residues. the raw bio-syngas was obtained by the pyrolyzer/gasifier at the yield rate of 40-45 nm(3)/h. the content of tar in the raw bio-syngas was decreased to less than 20 mg/nm(3) by high temperature gasification of the pyrolysates under o(2)-rich air. more than 70% co(2) in the raw bio-syngas was removed by pressure-swing adsorption unit (psa). the bio-syngas (h(2)/co approximate to 1) was catalytically converted to dme in the fixed-bed tubular reactor directly over cu/zn/al/hzsm-5 catalysts. co conversion and space-time yield of dme were in the range of 82.0-73.6% and 124.3-203.8 kg/m(cat)(3)/h, respectively, with a similar dme selectivity when gas hourly space velocity (ghsv, volumetric flow rate of syngas at stp divided by the volume of catalyst) increased from 650 h(-1) to 1500 h(-1) at 260 degrees c and 4.3 mpa. and the selectivity to methanol and c(2)(+) products was less than 0.65% under typical synthesis condition. the thermal energy conversion efficiency was ca. 32.0% and about 16.4% carbon in dried corncob was essentially converted to dme with the production cost of ca. (sic) 3737/ton dme. cu (111) was assumed to be the active phase for dme synthesis, confirmed by x-ray diffraction (xrd) characterization. (c) 2009 elsevier ltd. all rights reserved. |
| WOS标题词 | science & technology ; technology |
| 类目[WOS] | energy & fuels ; engineering, chemical |
| 研究领域[WOS] | energy & fuels ; engineering |
| 关键词[WOS] | biomass ; methanol ; catalysts ; biofuels ; syngas ; fuel ; gas |
| 收录类别 | SCI |
| 资助信息 | most of china [2007cb210207]; national nature science foundation of china ; national 863 plan [2007aa05z416] |
| 原文出处 | http://www.sciencedirect.com/science/journal/00162361 |
| 语种 | 英语 |
| WOS记录号 | WOS:000268914900016 |
| 公开日期 | 2010-09-16 |
| 源URL | [http://ir.giec.ac.cn/handle/344007/3306]  |
| 专题 | 中国科学院广州能源研究所 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Renewable Energy & Gas Hydrate, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 2.Shandong Acad Sci, Energy Res Inst, Jinan 250014, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Yuping,Wang, Tiejun,Yin, Xiuli,et al. Design and operation of integrated pilot-scale dimethyl ether synthesis system via pyrolysis/gasification of corncob[J]. fuel,2009,88(11):2181-2187. |
| APA | Li, Yuping.,Wang, Tiejun.,Yin, Xiuli.,Wu, Chuangzhi.,Ma, Longlong.,...&Sun, Li.(2009).Design and operation of integrated pilot-scale dimethyl ether synthesis system via pyrolysis/gasification of corncob.fuel,88(11),2181-2187. |
| MLA | Li, Yuping,et al."Design and operation of integrated pilot-scale dimethyl ether synthesis system via pyrolysis/gasification of corncob".fuel 88.11(2009):2181-2187. |
入库方式： OAI收割
来源：广州能源研究所
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