Effect of Iron Promoter on Structure and Performance of K/Cu-Zn Catalyst for Higher Alcohols Synthesis from CO2 Hydrogenation
文献类型：期刊论文
| 作者 | Li, Shanggui1,2; Guo, Haijun1,3; Luo, Cairong1,3 ; Zhang, Hairong1,3; Xiong, Lian1,3; Chen, Xinde1,3; Ma, Longlong1,3
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| 刊名 | catalysis letters
 |
| 出版日期 | 2013-04-01 |
| 卷号 | 143期号:4页码:345-355 |
| 关键词 | Higher alcohols synthesis CO2 hydrogenation Iron promoter K/Cu-Zn-Fe catalyst Synergistic effect |
| 英文摘要 | effect of iron promoter on the microstructures of k/cu-zn catalyst was investigated by n-2 adsorption/desorption, x-ray diffraction (xrd), field emission scanning electron microscope (fe-sem) and h-2 temperature programmed reduction (h-2-tpr). higher alcohols synthesis (has) from co2 hydrogenation was performed in a fixed-bed reactor under the conditions of t = 300 a degrees c, p = 6.0 mpa, ghsv = 5,000 h(-1) and h-2/co2 = 3. these characterization results showed that incorporation of iron into the k/cu-zn catalyst resulted in increase of bet surface area and dispersion of catalyst particles. especially, medium iron addition facilitated the synergistic effect between cu-fe and zn-fe interactions, improved the reduction of catalyst and increased the amounts of dispersed copper and iron carbides active centers. in the has reaction, the conversion of co2, the space time yield and selectivity of c2+oh increased first and then decreased as the increase of iron concentration. among these iron-promoted k/cu-zn catalysts, the cuznfe0.5k0.15 catalyst with a fe/(cu + zn + fe) ratio of 0.2 exhibited the highest alcohol selectivity of 36.67 wt% with a high c2+oh/c1oh of 6.76, which can be radically attributed to the especial morphology and optimum reduction degree. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | cu-based catalysts ; carbon-dioxide ; methanol synthesis ; composite catalysts ; ethanol synthesis ; mixed alcohols ; syngas ; conversion ; fe |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000316199600007 |
| 源URL | [http://ir.giec.ac.cn/handle/344007/10083]  |
| 专题 | 中国科学院广州能源研究所 集成技术研发中心 |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Shanggui,Guo, Haijun,Luo, Cairong,et al. Effect of Iron Promoter on Structure and Performance of K/Cu-Zn Catalyst for Higher Alcohols Synthesis from CO2 Hydrogenation[J]. catalysis letters,2013,143(4):345-355. |
| APA | Li, Shanggui.,Guo, Haijun.,Luo, Cairong.,Zhang, Hairong.,Xiong, Lian.,...&Ma, Longlong.(2013).Effect of Iron Promoter on Structure and Performance of K/Cu-Zn Catalyst for Higher Alcohols Synthesis from CO2 Hydrogenation.catalysis letters,143(4),345-355. |
| MLA | Li, Shanggui,et al."Effect of Iron Promoter on Structure and Performance of K/Cu-Zn Catalyst for Higher Alcohols Synthesis from CO2 Hydrogenation".catalysis letters 143.4(2013):345-355. |
入库方式： OAI收割
来源：广州能源研究所
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