Journal article
Maximizing sinusoidal channels of HZSM-5 for high shape-selectivity to p-xylene
Chuanfu Wang, Lei Zhang, Xin Huang, Yufei Zhu, Gang Kevin Li, Qinfen Gu, Jingyun Chen, Linge Ma, Xiujie Li, Qihua He, Junbo Xu, Qi Sun, Chuqiao Song, Mi Peng, Junliang Sun, Ding Ma
NATURE COMMUNICATIONS | NATURE PUBLISHING GROUP | Published : 2019
Abstract
The shape-selective catalysis enabled by zeolite micropore's molecular-sized sieving is an efficient way to reduce the cost of chemical separation in the chemical industry. Although well studied since its discovery, HZSM-5's shape-selective capability has never been fully exploited due to the co-existence of its different-sized straight channels and sinusoidal channels, which makes the shape-selective p-xylene production from toluene alkylation with the least m-xylene and o-xylene continue to be one of the few industrial challenges in the chemical industry. Rather than modifications which promote zeolite shape-selectivity at the cost of stability and reactivity loss, here inverse Al zoned HZ..
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Awarded by National Institute of Clean-and-low-carbon Energy
Awarded by National Key R&D Program of China
Awarded by Natural Science Foundation of China
Awarded by National Key Scientific Instrument and Equipment Development Project
Awarded by National Natural Science Foundation of China
Funding Acknowledgements
C.W. thanks the financial support from National Institute of Clean-and-low-carbon Energy (NICE-CAT-2017-29). D.M. received financial support from the National Key R&D Program of China (2017YFB0602200) and Natural Science Foundation of China (21725301, 91645115, 21932002, 21821004). J.S. received financial support from National Key Scientific Instrument and Equipment Development Project (21527803) and National Natural Science Foundation of China (2187100). Part of the experiment was performed at PD beamline, Australian Synchrotron (ANSTO).