Manganese cluster induce the control synthesis of RHO- and CHA-type silicoaluminaphosphates for dimethylether to light olefin conversion
文献类型：期刊论文
| 作者 | Sun, Jian3; Wang, Fei1,2; Wen, Zhiyong3; Qin, Zhaoxian1; Fang, Qihua1,2; Ge, Qingjie3; Li, Zhimin1; Li, Gao1 |
| 刊名 | FUEL
 |
| 出版日期 | 2019-05-15 |
| 卷号 | 244页码:104-109 |
| 关键词 | Manganese clusters RHO SAPO-34 Silicoaluminaphosphates Dimethylether to light olefin |
| ISSN号 | 0016-2361 |
| DOI | 10.1016/j.fuel.2019.02.013 |
| 通讯作者 | Ge, Qingjie(geqj@dicp.ac.cn) ; Li, Gao(gaoli@dicp.ac.cn) |
| 英文摘要 | RHO- and CHA-type silicoaluminaphosphates have played an essential role in the global olefin production, e.g., dimethylether to light olefin process (DTO). In this work, we report a simple synthetic protocol to selectively acquire pure RHO and SAPO-34 and RHO&SAPO-34 silicoaluminaphosphates, which is controllable mediated by the thiolate-capped manganese cluster additives. These prepared silicoaluminaphosphates are well characterized by powder X-ray diffraction (XRD), ammonia-temperature programmed desorption (NH3-TPD), and as well as N-2-physical adsorption. They are investigated in the DTO catalysis. The selectivity for the C2-4= light olefins over the RHO&SAPO-34 catalysts is up to 90.2%, which is much higher than these over the RHO (65.5%) and SAPO-34 (69.0%) silicoaluminaphosphates. Especially, the selectivity for ethylene is two times of these over RHO and SAPO-34. It is beneficial to selectively give rise to ethylene by the dual cycle hydrocarbon-pool mechanism in the DTO reactions, as the RHO&SAPO-34 showed much stronger acidic density, both in the strong acidic sites (0.966 mmol g(-1)) and weak acidic sites (0.575 mmol g(-1)), than the RHO and SAPO-34. Finally, the RHO&SAPO-34 also performs longer lifetime and durability (ca. 4.5 h) than the corresponding SAPO-34 and RHO silicoaluminaphosphates (ca. 1 h and 4 h), which is mainly due to slow formation of the carbon deposition over its strong acid density. |
| WOS关键词 | ZEOLITE-RHO ; ETHER CONVERSION ; METHANOL ; HYDROCARBONS ; DEACTIVATION ; SELECTIVITY ; CHEMISTRY |
| 资助项目 | National Natural Science Foundation of China[21701168] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000459434500012 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/165934]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Ge, Qingjie; Li, Gao |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Changshou Univ, Adv Catalysis & Green Mfg Collaborat Innovat Ctr, Chcmgsshou 213164, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Jian,Wang, Fei,Wen, Zhiyong,et al. Manganese cluster induce the control synthesis of RHO- and CHA-type silicoaluminaphosphates for dimethylether to light olefin conversion[J]. FUEL,2019,244:104-109. |
| APA | Sun, Jian.,Wang, Fei.,Wen, Zhiyong.,Qin, Zhaoxian.,Fang, Qihua.,...&Li, Gao.(2019).Manganese cluster induce the control synthesis of RHO- and CHA-type silicoaluminaphosphates for dimethylether to light olefin conversion.FUEL,244,104-109. |
| MLA | Sun, Jian,et al."Manganese cluster induce the control synthesis of RHO- and CHA-type silicoaluminaphosphates for dimethylether to light olefin conversion".FUEL 244(2019):104-109. |
入库方式： OAI收割
来源：大连化学物理研究所
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