1) acid/base bifunctional catalyst
酸碱双功能催化剂
2) hybrid catalyst
双功能催化剂
1.
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
2.
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
3.
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。
3) bifunctional catalyst
双功能催化剂
1.
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
2.
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。
3.
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。
4) bifunctional catalysts
双功能催化剂
1.
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。
2.
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。
5) bi-functional catalyst
双功能催化剂
1.
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。
2.
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。
3.
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。
6) Dual catalyst
双功能催化剂
1.
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。
2.
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。
补充资料:狭义酸碱催化
分子式:
CAS号:
性质:以酸碱(又称阿伦尼乌斯酸碱,)及布仑斯惕酸碱物质为催化剂的催化反应称为狭义酸碱催化。
CAS号:
性质:以酸碱(又称阿伦尼乌斯酸碱,)及布仑斯惕酸碱物质为催化剂的催化反应称为狭义酸碱催化。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条