Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
Design and operation of integrated pilot-scale dimethyl ether synthesis system via pyrolysis/gasification of corncob | |
Li, Yuping1![]() ![]() ![]() ![]() ![]() ![]() | |
2009-11-01 | |
发表期刊 | FUEL
![]() |
ISSN | 0016-2361 |
卷号 | 88期号:11页码:2181-2187 |
通讯作者 | liyp@ms.giec.ac.cn ; wangtj@ms.giec.ac.cn |
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. |
文章类型 | Article |
其他摘要 | 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. |
关键词 | Pilot-scale Dimethyl Ether (Dme) Bio-syngas Synthesis |
WOS标题词 | Science & Technology ; Technology |
DOI | 10.1016/j.fuel.2009.05.022 |
研究领域[WOS] | Energy & Fuels ; Engineering |
URL | 查看原文 |
关键词[WOS] | BIOMASS ; METHANOL ; CATALYSTS ; BIOFUELS ; SYNGAS ; FUEL ; GAS |
收录类别 | SCI |
语种 | 英语 |
项目资助者 | MOST of China [2007CB210207]; National Nature Science Foundation of China ; National 863 Plan [2007AA05Z416] |
WOS类目 | Energy & Fuels ; Engineering, Chemical |
WOS记录号 | WOS:000268914900016 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | 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. |
条目包含的文件 | 下载所有文件 | |||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Design and operation(516KB) | 开放获取 | -- | 浏览 下载 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论