DICP OpenIR
Partial Regeneration of the Spent SAPO-34 Catalyst in the Methanol-to-Olefins Process via Steam Gasification
Zhou, Jibin1,2; Zhang, Jinling1; Zhi, Yuchun1; Zhao, Jianping1,2; Zhang, Tao1; Ye, Mao1; Liu, Zhongmin1
Corresponding AuthorYe, Mao(maoye@dicp.ac.cn)
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
2018-12-26
ISSN0888-5885
DOI10.1021/acs.iecr.8b04181
Volume57Issue:51Pages:17338-17347
Funding ProjectNational Natural Science Foundation of China[91334205] ; National Natural Science Foundation of China[21703239]
Funding OrganizationNational 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
WOS SubjectEngineering, Chemical
WOS Research AreaEngineering
WOS KeywordCOKE DEPOSITION ; MTO REACTION ; N-HEPTANE ; CONVERSION ; DEACTIVATION ; SELECTIVITY ; ZEOLITES ; DIFFUSION ; OXIDATION ; CRACKING
AbstractThe 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.
Language英语
Funding OrganizationNational 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
WOS IDWOS:000454751200002
PublisherAMER CHEMICAL SOC
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Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/166345
Collection中国科学院大连化学物理研究所
Corresponding AuthorYe, Mao
Affiliation1.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
Recommended Citation
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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