Partial regeneration of the spent sapo-34 catalyst in the methanol-to-olefins process via steam gasification
文献类型：期刊论文
| 作者 | Zhou, Jibin1,2; Zhang, Jinling1; Zhi, Yuchun1; Zhao, Jianping1,2; Zhang, Tao1; Ye, Mao1; Liu, Zhongmin1 |
| 刊名 | Industrial & engineering chemistry research
 |
| 出版日期 | 2018-12-26 |
| 卷号 | 57期号:51页码:17338-17347 |
| ISSN号 | 0888-5885 |
| DOI | 10.1021/acs.iecr.8b04181 |
| 通讯作者 | Ye, mao(maoye@dicp.ac.cn) |
| 英文摘要 | The methanol-to-olefins (mto) reaction over the sapo-34 catalyst suffers rapid deactivation due to coke deposition. here, partial regeneration methods with air combustion and steam gasification were investigated. the results showed that both methods could not only reactivate the spent sapo-34 catalyst but also prompt ethylene selectivity. whereas, steam gasification was more effective , by which the initial ethylene selectivity could reach 53%, much higher than that of 23% over fresh sapo-34 catalyst. several characterizations, e.g., fourier transform infrared spectroscopy and gas chromatography-mass spectrometry, indicated that methylated benzenes, which were active hydrocarbon pool species and prompted ethylene selectivity, presented as the main species of residual coke in the sapo-34 catalyst regenerated via steam gasification. meanwhile, oxygenated compounds and naphthalene, which could accelerate catalyst deactivation, were observed in the sapo-34 catalyst partially regenerated via air combustion. this finding improved our understanding of the role of residual coke in the mto reaction and provided a potential regeneration method for the industrial mto process. |
| WOS关键词 | COKE DEPOSITION ; MTO REACTION ; N-HEPTANE ; CONVERSION ; DEACTIVATION ; SELECTIVITY ; ZEOLITES ; DIFFUSION ; OXIDATION ; CRACKING |
| WOS研究方向 | Engineering |
| WOS类目 | Engineering, Chemical |
| 语种 | 英语 |
| WOS记录号 | WOS:000454751200002 |
| 出版者 | AMER CHEMICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2372935 |
| 专题 | 大连化学物理研究所 |
| 通讯作者 | Ye, Mao |
| 作者单位 | 1.Chinese Acad Sci, Collaborat Innovat Ctr Chem Energy Mat, Dalian Inst Chem Phys, Natl Engn Lab Methanol Olefins,Dalian Natl Lab Cl, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Jibin,Zhang, Jinling,Zhi, Yuchun,et al. Partial regeneration of the spent sapo-34 catalyst in the methanol-to-olefins process via steam gasification[J]. Industrial & engineering chemistry research,2018,57(51):17338-17347. |
| APA | Zhou, Jibin.,Zhang, Jinling.,Zhi, Yuchun.,Zhao, Jianping.,Zhang, Tao.,...&Liu, Zhongmin.(2018).Partial regeneration of the spent sapo-34 catalyst in the methanol-to-olefins process via steam gasification.Industrial & engineering chemistry research,57(51),17338-17347. |
| MLA | Zhou, Jibin,et al."Partial regeneration of the spent sapo-34 catalyst in the methanol-to-olefins process via steam gasification".Industrial & engineering chemistry research 57.51(2018):17338-17347. |
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来源：大连化学物理研究所
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