Direct synthesis of dimethyl carbinate catalyzed by supported Lewis acid-superbase bifunctional catalyst;
负载型路易斯酸-超强碱双功能催化剂作用下的碳酸二甲酯直接合成
The global kinetics of directly synthesis of dimethyl ether(DME) from syngas over bifunctional catalyst mixed by methanol synthesis catalyst and dehydration catalyst was obtained.
044 8,搅拌转速1 000 r/min的反应条件下,于500 mL高压搅拌釜中进行了合成气在双功能催化剂上二甲醚合成过程的三相床宏观动力学研究,建立了幂函数型的动力学模型,获得了模型参数,经统计检验和残差分析证实了模型的可靠性。
A heterogeneous bifunctional catalyst was synthesized by incorporating chiral amine and acid groups into silica.
通过将手性胺和酸基团同时引入到二氧化硅表面制备得到了一种多相双功能催化剂。
Effect of methanol dehydration component in hybrid catalyst for the direct synthesis of dimethyl ether from syngas;
合成气一步法制二甲醚双功能催化剂中甲醇脱水组分对催化性能的影响
Study on direct synthesis of dimethyl ether by hydrogenation of carbon dioxide in the slurry reactor——Effects of reaction conditions on the performance of magnesium modified hybrid catalyst
浆态床中CO_2加氢直接合成二甲醚的研究——反应条件对镁改性双功能催化剂性能的影响
A series of HZSM-5 zeolites modified with various mass fractions of antimony oxide Sb2O3(0-30%) were prepared by solid state ion exchange method,and then physically mixed with an industrial methanol synthesis catalyst(XNC-98) to form a series of hybrid catalysts CuO-ZnO-Al2O3+Sb2O3/HZSM-5.
采用固态离子交换法制备了一系列不同氧化锑(Sb2O3)质量分数(0-30%)的锑改性HZSM-5分子筛,并以其为酸性组分与工业甲醇合成催化剂(XNC-98)组成双功能催化剂,在连续流动加压固定床反应器上考察了其对合成气直接制二甲醚反应的催化性能。
They were mixed with γ-Al_2O_3, H_3PO_4-γ-Al_2O_3, TiO_2-γ-Al_2O_3 and Hβ to prepare bi-functional catalysts.
利用浸渍法和共沉淀法合成Cu/Co/TiO2甲醇合成催化剂,选取γ-Al2O3,磷酸改性γ-Al2O3,二氧化钛改性γ-Al2O3以及Hβ型分子筛作为甲醇脱水催化剂,通过XRD和TPR等表征手段对其进行了研究,考察了脱水活性组分对双功能催化剂的影响。
And then a metal-solid superacid bi-functional catalyst was prepared for the purpo.
本文针对该工艺中存在的由于使用硫酸溶液而产生的腐蚀性强、污水治理量大等问题,制备了SO_4~(2-)/ZrO_2(SZ)及S_2O_8~(2-) /ZrO_2(PSZ)固体超强酸,对影响其结构及酸性特征的各种因素进行了研究,并在此基础上制备了金属/超强酸双功能催化剂,以期实现非酸介质中硝基苯加氢合成对氨基苯酚反应过程。
If the dimethyl ether (DME) is introducedas a co-feed gas to the methanol carbonylation reaction, the above problems may be diminishedsomewhat via the coupling reaction of DME hydrolysis and methanol carbonylation over abi-functional catalyst.
将二甲醚引入反应体系，利用双功能催化剂上甲醇氧化羰基化反应和二甲醚水解反应的耦合，不仅可以消耗掉羰基化反应中生成的水，缓解水引起的负面效应，同时可以提高DMC的收率。
As the central part of technology,bifunctional catalysts consist of methanol synthesis catalytic component and methanol dehydration catalytic component.
并分别介绍了双功能催化剂中的甲醇合成催化组分、甲醇脱水催化组分的研发现状及进展。
Zirconium and boron are favorable additives to CuO -ZnO - Al2O3 -based bifunctional catalysts.
概述了以合成气为原料一步法合成二甲醚双功能催化剂的研究现状及最新进展,分别介绍了双功能催化剂中的甲醇合成活性组分、甲醇脱水活性组分、两种活性组分的复合方法及配比等。
The catalytic performance of a dual catalyst for liquid phase dimethyl ether(LPDME)synthesis from syngas was extensively studied in a slurry reactor at different catalyst ratios(1～10,the weight ratio of Cu based methanol synthesis catalyst over alumina)and temperatures(260～300℃).
采用甲醇合成催化剂和甲醇脱水催化剂组成的双功能催化剂，在两者比例１～１０和反应温度２６０～３００℃范围内，研究了浆态床合成气制二甲醚双功能催化剂的性能，发现催化剂比例对催化活性影响显著。
The effects of process variables including temperature, pressure and weight hourly space velocity (WHSV) on catalytic performances of a dual catalyst for liquid phase synthesis of dimethyl ether(DME) from syngas were studied in a slurry reactor under 260～300℃,3.
ｈ）范围内，研究了浆态床ＣＯ加氢制二甲醚过程中工艺条件对双功能催化剂的性能的影响。
The Syntheses of Five-membered Heterocycles by Binary Catalyst System;
二元双功能催化剂催化合成五元杂环化合物
Acid treatment of support on the performance of catalysts combined with heat storage function
载体酸处理对蓄热-催化双功能催化剂性能的影响
Preparation and Preliminary Study of Dual-function Catalyst Pd/ZSM-5;
双功能催化剂Pd/ZSM-5的制备及初步应用研究
Bifuctional catalysts for direct synthesis of dimethyl ether from syngas
一步法制二甲醚双功能催化剂研究进展
Study on the Preparation of Platinum-Acidic Ionic Liquid Bifunctional Catalyst and the Catalytic Synthesis of P-Aminophenol
铂—酸性离子液体双功能催化剂及催化合成对氨基苯酚研究
Hybrid catalysts for the direct synthesis of dimethyl ether from carbon dioxide hydrogenation in a slurry reactor
浆态床中CO_2加氢直接合成二甲醚的双功能催化剂
The Study of Asymmetric Mannich Reaction Catalyzed by Bifunctional Organocatalysts;
双功能有机催化剂催化不对称Mannich反应研究
Design and Synthesis of Chiral Bifunctional (Pyrrolidine Salen)M(III) Complexes;
手性双功能吡咯烷Salen金属催化剂的设计合成
Studies on Asymmetric Reactions Catalyzed by Chiral Bifunctional Thiourea-tertiary Amine Organocatalysts;
基于手性双功能硫脲—叔胺催化剂催化的不对称反应研究
Theoretical Study on the Organocatalysis of Bifunctional-amine Catalyst;
胺类双官能团催化剂催化作用的理论研究
anticatalyser, anticatalyzer, anticatalyst
反催化剂,抗催化剂（双氧水稳定剂）
Preparation and Catalytic Properties of Bifunctional Catalyst for Olefin Epoxditaion and Carbonation;
烯烃氧化、碳酸酯化双功能催化材料的制备及催化性能的研究
The Study of Preparation and Catalytic Performances of Gold Catalysts in Functionalized Periodic Mesoporous Organosilica
功能化PMO介孔硅负载纳米金催化剂的制备及其催化性能的研究
Study of Preparation of PAP by Hydrogenation of Nitrobenzene on Bi-Functional Catalyst of Pt;
双功能贵金属铂基催化剂的研制与硝基苯加氢重排制对氨基苯酚的研究
Study on the Coupling Reaction of CO_2 and Epoxides Catalyzed by Bifunctional Catalysts;
双功能催化体系催化二氧化碳与环氧化合物的偶联反应研究
Studies on Preparation and Catalytic Performances of Ni-Co Bimetallic Catalysts for CH_4/CO_2 Reforming to Syngas;
Ni-Co双金属催化剂的制备及其在CO_2重整CH_4反应中的催化性能研究
AgBr/TiO_2 Composite Catalyst:Preparation by Double-Jet Method and Visible Light Photocatalytic Property
AgBr/TiO_2复合催化剂:双注法制备及其可见光催化性能
Effect of Calcination Temperature on Catalytic Performance of Bimetallic Catalysts for Hydrogenation Reforming of Toluene
焙烧温度对双金属催化剂甲苯加氢重整反应催化性能的影响