CAS OpenIR
Effect of Si02/AI2O3 ratio on the conversion of methanol to olefins over molecular sieve catalysts
Qian WANG1; Lei WANG2; Hui WANG1; Zengxi LI1; Xiangping ZHANG2; Suojiang ZHANG2; Kebin ZHOU1
2011
Source PublicationFrontiers of Chemical Science and Engineering
ISSN2095-0179
Volume5Issue:1Pages:79
AbstractA series of SAPO-34 molecular sieves with different SiO_2/Al_2O_3 ratios have been synthesized for the methanol-to-olefin (MTO)reaction.Their physico-chemical properties are characterized by various techniques such as X-ray diffraction (XRD),scanning electron microscopy(SEM),energy dispersive spectroscopy (EDS),Fourier transform infrared spectroscopy (FT-IR)and N2 adsorption-desorption.The results are compared with those of the commercial HZSM-5,which show that the crystallinity and particle diameter of SAPO-34 as well as HZSM-5 increase with SiO_2/Al_2O_3 ratio.The variation of BET surface area of SAPO-34 is different from that of HZSM-5 and the sample with SiO_2/Al_2O_3 ratio of 0.4 exhibits the highest BET surface area.FT-IR spectra indicate that HZSM-5 has both Bronsted and Lewis acid sites and Bronsted acid sites are stronger,whereas SAPO-34 samples are dominated only by Lewis acid sites.When the SiO_2/Al_2O_3 ratio increases,propylene and butylenes become the predominant product of the MTO reaction over HZSM-5.In contrast,the main products of this reaction catalyzed by SAPO-34 are ethylene and propylene.According to the product distribution,the reaction mechanism over HZSM-5 catalysts is proposed.
KeywordHZSM-5 SAPO-34 methanol-to-olefin(MTO) SiO2/Al2O3 ratio
Language英语
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/47566
Collection中国科学院过程工程研究所
Affiliation1.中国科学院大学
2.中国科学院过程工程研究所
Recommended Citation
GB/T 7714
Qian WANG,Lei WANG,Hui WANG,et al. Effect of Si02/AI2O3 ratio on the conversion of methanol to olefins over molecular sieve catalysts[J]. Frontiers of Chemical Science and Engineering,2011,5(1):79.
APA Qian WANG.,Lei WANG.,Hui WANG.,Zengxi LI.,Xiangping ZHANG.,...&Kebin ZHOU.(2011).Effect of Si02/AI2O3 ratio on the conversion of methanol to olefins over molecular sieve catalysts.Frontiers of Chemical Science and Engineering,5(1),79.
MLA Qian WANG,et al."Effect of Si02/AI2O3 ratio on the conversion of methanol to olefins over molecular sieve catalysts".Frontiers of Chemical Science and Engineering 5.1(2011):79.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Qian WANG]'s Articles
[Lei WANG]'s Articles
[Hui WANG]'s Articles
Baidu academic
Similar articles in Baidu academic
[Qian WANG]'s Articles
[Lei WANG]'s Articles
[Hui WANG]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Qian WANG]'s Articles
[Lei WANG]'s Articles
[Hui WANG]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.