The study provides a theoretical base for preparing high activity and high selective catalyst for pyridine synthesis.
该研究为制备高活性、高选择性的合成吡啶催化剂提供了理论依据。
Catalyst choice is the key technology of this process, so research and development of high active and high selective catalyst has become an important task.
该工艺的技术关键是催化剂的选择，故开发高活性和高选择性催化剂成为一个重要的课题。
The effect of calcination temperature, content of nickel and molybdenum on the selective hydrogenation performance of catalyst were investigated.
考察了载体焙烧温度、金属镍与钼的负载量对催化剂选择性加氢性能的影响。
The invention relates to a preparation and application of a selective hydrogenating catalyst.
本发明是关于一种选择性加氢催化剂的制备方法和用途。
The results showed that the catalyst, with calcium phosphate as the main part, is active and selective in the splitting of acetal.
实验结果表明：以磷酸钙为主体的催化剂对缩醛裂解反应具有较高的活性和选择性。
Selective non catalyst reduction (SNCR) is a mature technology for moderate NOx emission control on flue gas.
对烟气脱硝的选择性非催化还原技术进行了介绍。
The results indicated that 9908 catalyst was a kind of fine performance selective hydrogenation catalyst, and the 9910 was suitable for extreme hydrogenation.
结果表明，9908型催化剂适合油脂的选择性氢化，而9910型则适合植物油的极度氢化。
Selective suitable conditions such as the ratio of reactions, different catalyst and the addition of dehydrater etc are presented. The result which is the yield of product is 82.5%.
选择了合适的原料配比、催化剂、脱水剂用量等反应条件，反应所得到的丙酮酸乙酯收率为82.5%；
The invention discloses a composite oxidant SCR (Selective Catalytic Reduction) denitrating catalyst for warm fume in boilers, a preparation method and application thereof.
本发明公开了一种用于锅炉中温烟气的复合氧化物SCR脱硝催化剂及制备方法和应用。
Selective activation is accomplished by treated the dewaxing catalyst with a carrier feed containing oxygenate.
通过用含有含氧物质的载体原料处理所述脱蜡催化剂来进行选择活化。
This dissertation studied the activity of manganese oxides catalyst supported by palygorskite catalyst in lower temperatures for selective catalytic reduction of NO and its physic-chemical properties.
本文研究了凹凸棒石负载锰氧化物催化剂的物理化学性能和低温选择性催化还原NO性能。
The effects of catalyst preparation and hydrogenation conditions on the activity of copper-chromium oxide catalysts for selective hydrogenation of soybean oil was investigated.
通过铜铬氧化物催化剂用于豆油的选择氢化，研究了制备方法及氢化条件对催化剂活性的影响。
The experiment results of methanol carbonylation have showed that this catalyst is highly active and selective.
研究表明，在催化甲醇羰基化制乙酸的反应中，该配合物显示出高的活性和选择性。
The light constituents flow upward to the catalyst zone, where the selective hydrogenation of butadiene is carried out together with desulfurization and some olefin saturation.
轻组分向上流至催化剂段，在那里丁二烯选择性加氢、脱硫和一些烯烃的饱和同时进行。
The invention disclosed the preparing method of selective hydrogenating catalyst of unsaturated hydrocarbon.
本发明公开了一种不饱和烃选择性加氢催化剂的制备方法。
Studies on the regeneration of vanadium phosphorous oxides (VPO) catalyst for selective oxidation of propane to acrylic acid and acetic acid has been carried out using a pulse reactor.
采用脉冲反应器，研究了VPO催化剂的再生性质及其对晶格氧选择氧化丙烷制丙烯酸和乙酸的影响。
A process for preparing 1-methoxy-2-propanol by selective ring cleavage-addition reaction of propylene oxide with MeOH in the presence of HM-9512 catalyst is described.
阐述了利用环氧丙烷和甲醇在催化剂HM-9512存在下，通过选择性开环加成制备1-甲氧基-2-丙醇的工艺过程。
It can be used as catalyst or catalyst carrier for dewaxing via isomerization, selective hydrogenation, cracking, condensation of alcohol and aldehyde, etc.
可在异构脱蜡、选择性加氢及裂化、醇醛缩合等反应中用作催化剂的活性组分和载体。
The invention relates to a 'catalyst used for ammonia selective catalytic reduction of nitrogen oxides to nitrogen gas and a preparation method thereof', and belongs to the catalyst technical filed.
本发明涉及“氨选择性催化还原氮氧化物成氮气的催化剂及其制备方法”，属于催化剂技术领域。
The olefin conversion of FCC naphtha to produce light olefins over regular carrier catalyst preparated from shape-selective molecular sieve was studied in a regular fixed-bed reactor.
以择形分子筛制备的规整载体催化剂，在规整固定床反应器上，进行催化裂化汽油中烯烃转化产低碳烯烃的裂化反应。
The regeneration performance of the catalyst for liquid phase selective hydrogenation of C 3 fraction, and hydrogenation of the regenerated catalyst were studied.
研究了碳三馏份液相选择加氢催化剂的高温再生方法和过程以及再生后的加氢反应结果。
The new catalyst for producing more diesel as well as the new process of component-selective cracking with staged feeding developed by Research Institute of Petroleum Processing were introduced.
介绍了石油化工科学研究院新近开发的增产柴油催化剂及分段进料的组分选择性裂化的新工艺；
The result of selective oxidation of propylene exhibits comparatively complex behaviors, at different BiCe ratios of the catalyst. An unified reaction mechanism is presented in this article.
对稀土铈和钼酸铋不同比例的催化剂下，丙烯选择催化呈现的比较复杂的动力学行为，给出统一合理的机理。
The selective exchange process was used in the treatment of wastewater containing NH 3 N from catalyst production.
用铵离子选择交换工艺对催化剂生产过程排出的含氨氮废水进行处理。
The relationship between the high selectivity of catalysis and the structure of active centre of copper colloidal catalyst in selective hydration of acrylonitrile to acrylamide was studied.
研究了胶体铜催化丙烯腈水合制丙烯酰胺的高选择性与活性中心结构的关系。
We effectively improve the MMT thermal stability of solid acid catalyst and the shape-selective catalysis by transforming the two-dimensional layered structure to the three-dimensional pore structure.
有效地提高了蒙脱土固体酸催化剂的热稳定性；通过从二维层状结构到三维孔道结构转变，切实提高了材料自身择形催化的特性。
We effectively improve the MMT thermal stability of solid acid catalyst and the shape-selective catalysis by transforming the two-dimensional layered structure to the three-dimensional pore structure.
有效地提高了蒙脱土固体酸催化剂的热稳定性；通过从二维层状结构到三维孔道结构转变，切实提高了材料自身择形催化的特性。
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