The effects of ionic additives on the aqueous-phase Fischer-Tropsch synthesis with a ruthenium nanoparticle catalyst
文献类型：期刊论文
| 作者 | Wang, Chen; Zhao, Huabo; Wang, Hang; Liu, Lingtao; Xiao, Chaoxian; Ma, Ding |
| 刊名 | CATALYSIS TODAY
 |
| 出版日期 | 2012-03-20 |
| 卷号 | 183期号:1页码:143-153 |
| 关键词 | Fischer-tropsch Synthesis Aqueous Phase Ruthenium Nanoparticle Ionic Additives Products Distribution |
| ISSN号 | 0920-5861 |
| DOI | 10.1016/j.cattod.2011.10.020 |
| 英文摘要 | The effects of ionic additives on the catalytic activity and product distribution of hydrocarbons and oxygenates were studied on the reaction of quasi-homogeneous ruthenium nanoparticle (Ru NP) catalyst for aqueous phase Fischer-Tropsch synthesis (AFTS). A variety of potassium and sodium salts, as well as KOH and NaOH were used as the ionic additives in the AFTS reactions either after the synthesis of Ru NPs (R1) or during the synthesis of Ru NPs (R2, which was used directly in the following AFTS process). The additions of Cl-, OH-, HCO3-, H2PO4-, and CO32- through R2 way enhanced the AFTS activity, while the addition of F- in R2 way led to a significant deactivation for Ru NPs catalyst. For the selectivities of products, potassium and sodium additives increased the selectivity of C-5-C-12 hydrocarbons, and suppressed formation of olefins and oxygenates. F- decreased the content of C13+ hydrocarbons and shifted selectivities towards lower-molecular-weight hydrocarbons (C-1-C-4). The additions of Br- (added in R2 way) and I- dramatically increased the content of alcohols in oxygenate products. In all cases, ASF distribution of hydrocarbons (C-1-C-29) and analogous ASF distribution of oxygenates (aldehydes from C-9 up to C-27) were obtained. The addition of I-, PO43-, H2PO4- and Br- in R2 way resulted in the aggregation of Ru NPs. However, the catalysts with these additives still maintained remarkable activities. Moreover, the particle size and morphology of Ru NPs in other cases showed little correlation with the participation of ionic additives, demonstrating that they were more in the line of electronic promoter instead of structural directing agent for Ru NPs. The proposed mechanism was verified by the CO adsorption experiments. (C) 2011 Elsevier B. V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000301126300021 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/49707]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Ma, Ding |
| 作者单位 | Peking Univ, PKU Green Chem Ctr, Beijing Natl Lab Mol Sci, Coll Chem & Mol Engn, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Chen,Zhao, Huabo,Wang, Hang,et al. The effects of ionic additives on the aqueous-phase Fischer-Tropsch synthesis with a ruthenium nanoparticle catalyst[J]. CATALYSIS TODAY,2012,183(1):143-153. |
| APA | Wang, Chen,Zhao, Huabo,Wang, Hang,Liu, Lingtao,Xiao, Chaoxian,&Ma, Ding.(2012).The effects of ionic additives on the aqueous-phase Fischer-Tropsch synthesis with a ruthenium nanoparticle catalyst.CATALYSIS TODAY,183(1),143-153. |
| MLA | Wang, Chen,et al."The effects of ionic additives on the aqueous-phase Fischer-Tropsch synthesis with a ruthenium nanoparticle catalyst".CATALYSIS TODAY 183.1(2012):143-153. |
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来源：化学研究所
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