Citation: HAN Hai-Bo, WANG You-He, LI Kang, LEI Jie, LIU Dan-He, YAN Zi-Feng. Synthesis, Characterization and Catalytic Performance of MOR/SBA-15 Composite Zeolite[J]. Chinese Journal of Inorganic Chemistry, ;2018, 34(8): 1477-1482. doi: 10.11862/CJIC.2018.173 shu

Synthesis, Characterization and Catalytic Performance of MOR/SBA-15 Composite Zeolite

HAN Hai-Bo ^1,2 ,
WANG You-He ¹ ,
LI Kang ² ,
LEI Jie ² ,
LIU Dan-He ² ,
YAN Zi-Feng ^1,,

1.
State Key Laboratory for Heavy Oil Processing, China University of Petroleum, Qingdao, Shandong 266580, China
2.
Luoyang R & D Center of Technology of SINOPEC Engineering(Group) Co., Ltd., Luoyang, Henan 471003, China

Corresponding author: YAN Zi-Feng, zfyancat@upc.edu.cn
Received Date: 27 March 2018
Revised Date: 7 May 2018

Figures(5)

The hydrothermal synthesis of MOR/SBA-15 composite zeolite has been achieved by employing MOR nanocrystalline and tetraethyl orthosilicate (TEOS) as silica source, and triblock copolymer P123 as hard template. The catalyst was characterized through an integrated method including XRD, SEM, TEM and EDX, and the corresponding catalytic performance was evaluated in the conversion of diethyl ether (DME) to ethanol in a fixed-bed reactor. The results show that MOR nanocrystalline, a building unit for SBA-15, can be successfully grafted in the mesopore framework of SBA-15 by controlling the addition of MOR nanocrystalline. The obtained composite zeolite possesses both the characteristic diffraction peaks of MOR and SBA-15. The specific surface area and total pore volume, compared with SBA-15, decrease from 756 m²·g^-1, 1.07 m³·g^-1 to 628 m²·g^-1, 0.85 m³·g^-1, respectively. And the pore diameter in average raises from 8.1 to 9.3 nm. An extra Cu modification of the composite zeolite allows a bifunctional catalytic performance of carbonylation with CuMOR and hydrogenation with CuSBA-15. The catalyst evaluation tests show that the conversion of DME is 43.6% and the selectivity to ethanol is 95.3%, indicating a one-step transformation from DME to ethanol over CuMOR/SBA-15 composite zeolite.
- MOR nano crystalline,
- MOR/SBA-15 composite zeolite,
- MDE,
- bifunctional catalyst
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