Catalytic Behavior of Alkali Treated H-MOR in Selective Synthesis of Ethylenediamine via Condensation Amination of Monoethanolamine
Catalytic Behavior of Alkali Treated H-MOR in Selective Synthesis of Ethylenediamine via Condensation Amination of Monoethanolamine
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碱处理的H-MOR在单乙醇胺缩合胺化选择性合成乙二胺中的催化行为
DOI：
10.3390/catal10040386
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发表时间：
2020-04
期刊：
影响因子：
3.9
通讯作者：
Lu Jian
中科院分区：
文献类型：
--
作者：
Zhao Feng-Wei;Zhang Qian;Hui Feng;Yuan Jun;Mei Su-Ning;Yu Qin-Wei;Yang Jian-Ming;Mao Wei;Liu Zhong-Wen;Liu Zhao-Tie;Lu Jian
Catalytic behavior of alkali treated mordenite (H-MOR) in selective synthesis of ethylenediamine (EDA) via condensation amination of monoethanolamine (MEA) was investigated. Changes in the structural and acidic properties of alkali treated H-MOR were systematically investigated by N2 adsorption/desorption isotherms, scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), temperature programmed ammonia desorption (NH3-TPD), pyridine adsorption was followed by infrared spectroscopy (Py-IR), and X-ray fluorescence (XRF) analyses. The results show that alkali treatment produces more opening mesopores on the H-MOR crystal surfaces and leads to an increase in the number of B acid sites and the strength of the acid sites. The mesopores effectively enhance the rate of diffusion in the bulk catalyst. Moreover, the B acid sites are active sites in selective synthesis of EDA. Due to improvements in the diffusion conditions and reactivities, alkali treated H-MOR shows an excellent catalytic performance under mild reaction conditions. The conversion of MEA was 52.8% and selectivity to EDA increased to 93.6%, which is the highest selectivity achieved so far. Furthermore, possible mechanism for the formation of EDA is discussed.
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影响因子：
7.3
作者：
Mei, Changsong;Wen, Pengyu;Gao, Zi
通讯作者：
Gao, Zi
影响因子：
5.5
作者：
Liu, Kefeng;Xie, Sujuan;Xu, Longya
通讯作者：
Xu, Longya
影响因子：
5.5
作者：
Monteiro, R.;Ania, C. O.;Martins, A.
通讯作者：
Martins, A.
影响因子：
7.3
作者：
Reule, Allen A. C.;Sawada, James A.;Semagina, Natalia
通讯作者：
Semagina, Natalia
影响因子：
7.3
作者：
Shewangizaw Teketel;L. Lundegaard;Wegard Skistad;S. Chavan;U. Olsbye;K. Lillerud;P. Beato;S. Svelle-S.-Sve
通讯作者：
Shewangizaw Teketel;L. Lundegaard;Wegard Skistad;S. Chavan;U. Olsbye;K. Lillerud;P. Beato;S. Svelle-S.-Sve