TY - JOUR
T1 - The template-assisted zinc ion incorporation in SAPO-34 and the enhanced ethylene selectivity in MTO reaction
AU - Zhong, Jiawei
AU - Han, Jingfeng
AU - Wei, Yingxu
AU - Xu, Shutao
AU - Sun, Tantan
AU - Guo, Xinwen
AU - Song, Chunshan
AU - Liu, Zhongmin
N1 - Funding Information:
We are grateful to the National Natural Science Foundation of China ( 21603223 , 91745109 , 91545104 , 21473182 , 91334205 ) and the Youth Innovation Promotion Association of the Chinese Academy of Sciences (2014165) for financial support.
Publisher Copyright:
© 2018
PY - 2019/5
Y1 - 2019/5
N2 - The SAPO-34 catalyst was fine-tuned with zinc cations through a straightforward template-assisted ion incorporation (TII) process, without the necessary template pre-removal and the preparation of NH4-SAPO-34 intermediate, which is more facile, efficient and cost-effective than the conventional ion exchange process. The template-assisted zinc cations incorporated SAPO-34 catalysts were characterized by XRD, XRF, N2 adsorption-desorption, XPS, SEM, EDX, 1H NMR, respectively. Enhanced selectivity to ethylene and ratio of ethylene to propylene in MTO reaction are observed over the zinc cations modified SAPO-34 catalysts, due to the facilitated formation of lower methylbenzenes that favour the ethylene generation, as well as the increased diffusion hindrance originated from the zinc cations incorporation and the facilitated generation of aromatics compound.
AB - The SAPO-34 catalyst was fine-tuned with zinc cations through a straightforward template-assisted ion incorporation (TII) process, without the necessary template pre-removal and the preparation of NH4-SAPO-34 intermediate, which is more facile, efficient and cost-effective than the conventional ion exchange process. The template-assisted zinc cations incorporated SAPO-34 catalysts were characterized by XRD, XRF, N2 adsorption-desorption, XPS, SEM, EDX, 1H NMR, respectively. Enhanced selectivity to ethylene and ratio of ethylene to propylene in MTO reaction are observed over the zinc cations modified SAPO-34 catalysts, due to the facilitated formation of lower methylbenzenes that favour the ethylene generation, as well as the increased diffusion hindrance originated from the zinc cations incorporation and the facilitated generation of aromatics compound.
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U2 - 10.1016/j.jechem.2018.07.017
DO - 10.1016/j.jechem.2018.07.017
M3 - Article
AN - SCOPUS:85052816921
SN - 2095-4956
SP - 174
EP - 181
JO - Journal of Energy Chemistry
JF - Journal of Energy Chemistry
ER -