DEALUMINATION

作品数：22被引量：59H指数：5
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相关作者：张培育魏广叶韩冰冰曲景奎郭强更多>>
相关机构：中国科学院中国科学院过程工程研究所更多>>
相关期刊：《Transactions of Nonferrous Metals Society of China》《Chinese Journal of Chemical Engineering》《Frontiers of Chemical Science and Engineering》《Journal of Rare Earths》更多>>
相关基金：国家自然科学基金国际科学基金中央高校基本科研业务费专项资金国家高技术研究发展计划更多>>
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Investigation of Ce/BEA as a passive NO_(x)adsorber:2.Hydrothermal aging deactivation mechanism
《Journal of Rare Earths》2024年第8期1524-1530,I0004,共8页Yiying Ding Minghui Yu Xiaojie Yu Meiqing Shen Jianqiang Wang Jun Wang Gurong Shen 
supported the National Key R&D Program of China(2021YFB3503200);the Innovative Research Groups of the National Natural Science Foundation of China(51921004);Young Elite Scientists Sponsorship Program by CAST(2021QNRC001);the Key R&D Project of Shandong Province(2021CXGC010703,2022CXGC020311)。
Ce/BEA has the potential to be applied as a novel passive NO_(x)absorber(PNA)in the after-treatment of vehicles due to its considerable NO_(x)storage capacity.However,as a vehicle exhaust after-treatment material,it m...
关键词：Passive NO_(x)adsorber Ce/BEA Hydrothermal aging CeO_(x) DEALUMINATION Rare earths 
Solid-state NMR study of the stability of MOR framework aluminum
《Chinese Journal of Structural Chemistry》2024年第4期7-14,共8页Xinzhi Ding Chong Liu Jing Niu Nan Chen Shutao Xu Yingxu Wei Zhongmin Liu 
support provided by the National Key Research and Development Program of China(No.2022YFE0116000);the National Natural Science Foundation of China(22241801,22022202,22032005,22288101,21972142,21991090,21991092,21991093);Dalian Outstanding Young Scientist Foundation(2021RJ01).
MOR zeolite has been effectively utilized for dimethyl ether(DME)carbonylation reaction due to its unique pore structure and acidity.During industrial production,the transformation of ammonium type MOR zeolite(NH_(4)-...
关键词：H-MOR Solid-state NMR H2O Framework aluminum stability DEALUMINATION 
Surface dealuminated Beta zeolites supported WO3 catalyst and its catalytic performance in tetralin hydrocracking被引量：5
《Petroleum Science》2022年第6期3116-3123,共8页Yan-Ting Zhang Ni-Ni Zhang Sheng-Li Chen Hui Dang Tao Wu 
In this study,selective dealumination of Beta zeolites was performed through partially removing the templating agent in Beta zeolites by calcination and then removing the aluminum on the external surface of Beta zeoli...
关键词：Beta zeolites DEALUMINATION CALCINATION HYDROCRACKING 
Selective conversion of methanol to propylene over highly dealuminated mordenite:Al location and crystal morphology effects被引量：2
《Chinese Journal of Catalysis》2021年第7期1147-1159,共13页Li Ren Bowen Wang Kun Lu Rusi Peng Yejun Guan Jin‐gang Jiang Hao Xu Peng Wu 
国家重点研发计划(2016YFA0202804);国家自然科学基金(21533002,21872052,21972044);中央高校基本科研业务费专项资金资助。
The growing consumption of light olefins has stimulated intensive researches on methanol to olefin(MTO)process which possesses great advantages for coal conversion to value‐added chemicals in an environmentally benig...
关键词：MORDENITE Methanol to propylene DEALUMINATION Al location Crystal size 
Using ultrasound to improve the sequential post-synthesis modification method for making mesoporous Y zeolites被引量：5
《Frontiers of Chemical Science and Engineering》2020年第2期275-287,共13页Rongxin Zhang Peinan Zhong Hamidreza Arandivan Yanan Guan Jinmin Liu Na Wang Yilai Jiao Xiaolei Fan 
Yilai Jiao thanks the China Scholarship Council for his academic visiting fellowship in the UK(File No.201604910181);Na Wang thanks the National Natural Science Foundation of China(Grant No.51973124)for supporting her research.
Mesoporous Y zeolites were prepared by the sequential chemical dealumination(using chelating agents such as ethylenediaminetetraacetic acid,H EDTA,and citric acid aqueous solutions)and alkaline desilication(using sodi...
关键词：ZEOLITE Y MESOPOROUS ZEOLITE post-synthesis TREATMENT ULTRASOUND chemical DEALUMINATION TREATMENT alkaline DESILICATION TREATMENT 
Dealumination and desilication for Al-rich HZSM-5 zeolite via steam-alkaline treatment and its application in methanol aromatization被引量：6
《Frontiers of Chemical Science and Engineering》2019年第3期543-553,共11页Yuehua Fang Fan Yang Xuan He Xuedong Zhu 
the National Natural Science Foundation of China (Grant No.21776076);Technology admin of Department of PetroChina Company Limited are gratefully acknowledged.
The hierarchical HZSM-5 was prepared via dealumination and desilication of commercial Al-rich HZSM-5, and characterized by X-ray diffraction, 27Al magic-angle spinning nuclear magnetic resonance, inductively coupled p...
关键词：STEAM TREATMENT alkaline treatment hierarchical ZSM-5 METHANOL AROMATIZATION 
Dealumination kinetics of composite ZSM-5/mordenite zeolite during steam treatment: An in-situ DRIFTS study被引量：2
《Chinese Journal of Chemical Engineering》2018年第3期545-550,共6页Xiaoxiao Zhang Dangguo Cheng Fengqiu Chen Xiaoli Zhan 
Supported by the National Key Research and Development Program of China(2016YFA0202900);the National Natural Science Foundation of China(91434123,21622606);Zhejiang Provincial Natural Science Foundation of China(LR18B060001);the Fundamental Research Funds for the Central Universities
To get a better understanding of structural deactivation of ZSM-5/MOR during the catalytic cracking of n-heptane in the steam atmosphere, a comprehensive mechanism of hydrothermal dealumination was proposed through in...
关键词：Zeolite Dealumination Kinetics Hydrothermal treatment 
Ceria-modified hierarchical Hβ zeolite as a robust solid acid catalyst for alkenylation of p-xylene with phenylacetylene被引量：12
《Chinese Journal of Catalysis》2018年第1期181-189,共9页Yongle Guo Yu Zhang Zhongkui Zhao 
supported by the National Natural Science Foundation of China(21276041,U1610104);the Chinese Ministry of Education via the Program for New Century Excellent Talents in University(NCET-12-0079)~~
A ceria‐modified hierarchical Hβzeolite was prepared by a desilication‐dealumination procedure followed by ceria modification.The catalytic performance of the ceria‐modified and unmodified hierarchical Hβzeolite ...
关键词：Hierarchical beta zeolite Desilication and dealumination Ceria modification Heterogeneous catalysis ALKENYLATION 
A novel method for enhancing the stability of ZSM-5 zeolites used for catalytic cracking of LPG: Catalyst modification by dealumination and subsequent silicon loading被引量：3
《Chinese Journal of Catalysis》2016年第4期628-635,共8页Leyla Vafi Ramin Karimzadeh 
partly supported by the International Science Foundation~~
Composite structures of ZSM‐5 zeolites were prepared by the synthesis of mesopores and mi‐cropores using carbon nanotubes as a template. Dealumination of mesopores was performed selec‐tively using trichloroacetic a...
关键词：MESOPORES Carbon nanotube ZSM-5 zeolite DEALUMINATION Trichloroacetic acid 
Alkaline modification of ZSM-5 catalysts for methanol aromatization： The effect of the alkaline concentration被引量：21
《Frontiers of Chemical Science and Engineering》2015年第4期450-460,共11页Zhenhao Wei Tengfei Xia Minghui Liu Qingsheng Cao Yarong Xu Kake Zhu Xuedong Zhu 
The effects of alkaline treatment on the physical properties of ZSM-5 catalysts and on their activities for methanol to aromatics conversion have been investigated. A mild alkaline treatment （0.2 and 0.3 mol/L NaOH）...
关键词：ZSM-5 alkaline treatment dealumination desilication MESOPORES METHANOL aromatics 
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