查询词典 catalyst

The paper studied the improved process for preparing phosphorus sulfochloride, where high-effective liquid catalyst was employed, and investigated the catalytic activity and service life of the novel catalyst. The optimum process conditions of batch and semi-continous operation were obtained by single factor experiments and modified simplex experiments.

本论文研究了采用高效液相催化剂制备三氯硫磷的新工艺，对催化剂寿命和性能进行了考察，利用单因子实验和改进单纯形实验找到了间歇操作和半连续操作的最佳工艺条件。

Techno-economical analysis and comparison of oxidation catalyst and sulfurization catalyst have been carried out based on the process technology and practical start up of two catalytic reforming units.

结合两套催化重整装置工艺技术和实际开工情况，对氧化态和硫化态两种形态催化剂进行了技术经济综合分析和对比，探讨了进一步改进硫化态催化剂经济性的可能性。

The exothemicity of impregnated catalyst is not only little in air, but exothemicity is little and heat is dispersed during sulfurization. H2S concentration is much higher in effluent gas, if the effluent gas could be recycled, then sulfiding degree of catalyst is increased and resource is saved.

浸渍催化剂不仅在空气中保管时放热温升小，而且硫化时放热少且分散；尾气中H_2S浓度较大，如果能循环利用尾气，那么既能提高催化剂的硫化度又能节省能源。

The our company after relates in every way according to the above situation, already from overseas massively purchased the ZX-10 series desulphurization catalyst, has been able to coke with this catalyst technology the sulphonium compounds which the triphenyl contained, the nitrogen compound , the unsaturated compound and very many impurities, the fetid odor and so on removes, after the processing triphenyl always Sulfur content was lower than the petroleum benzene, the smell, the color, was consistent with the petroleum benzene.

目前焦化三苯在工业上使用范围小，销售价格也低于石油三苯。其主要原因是硫、噻吩等杂质含量高、气味重。而现在国际、国内焦化三苯、汽油、柴油等产品脱硫提纯去杂质的工艺均采用高压催化加氢法处理，该工艺设备投资巨大。根据以上情况我公司经多方联系，现已从国外大量购进ZX-10系列脱硫催化剂，用本催化剂技术已能将焦化三苯所含的硫化合物、氮化合物、不饱和化合物及很多杂质，臭味等脱除，处理后的三苯总硫含量低于石油苯，气味、颜色，均与石油苯一致。

Therefore, research on ultrafine powder solid superacid catalyst is one of the important researchs in the catalyst field today and in the future.

因此，大力开展超微粒子催化剂的研究已成为当前乃至今后一段时期内催化领域的重要研究方向之一。

It is discussed that how the preparation methods of the catalyst for trichloroethylene by dehydrochlorination from tetrachloroethane ,the reactor materials,ferric chloride,the impurity 1,1,2-trichloroethane and the high boilers contained in raw material tetrachloroethane and the operating conditions influence the catalyst.

探讨了四氯乙烷脱氯化氢制三氯乙烯所用催化剂的制备方法、反应器材质、氯化铁、原料四氯乙烷中的杂质1，1，2-三氯乙烷和高沸物及操作条件对催化剂的影响，从而指导四氯乙烷脱氯化氢制三氯乙烯的工业生产，提高催化剂的效率，延长催化剂的寿命，消除不利的影响因素，提高产品质量，降低生产成本，确保三氯乙烯生产的长期、稳定运行。

The researching content was as follows: 1. When AlClx/HY zeolite be used as catalyst, the effects of the ratio of 2-methylnaphthalene to tetramethyl benzene, catalyst concentration, reaction temperature and reaction time on the conversion (based on 2-methylnaphthalene), yield and selectivity (both based on 2,6-DMN) were discussed. In addition, by orthogonal experiment, the optimum reaction conditions were determined at the same time. The optimum reaction conditions : the molar ratio of 2-methylnaphthalene and tetramethyl benzene =1:1, reaction temperature was 400℃.

具体研究如下： 1、以AlClx/HY型分子筛为催化剂，研究原料配比(2-甲基萘与均四甲苯的摩尔比)、反应温度和反应时间对2-甲基萘的转化率、目的产物2，6-DMN的收率和选择性的影响，并通过正交实验确定了该催化剂体系下的最佳反应条件为：原料的摩尔比为(2-甲基萘：均四甲苯)=1：1，反应质量空速为6h-1，反应温度为400℃。

The said process can regenerate catalyst continuously or intermittently to maintain the catalytic activity of the alkylating catalyst for long period and has lowest loss of produce in amount and octane number while eliminating the thiofuran sulfur impurity in material.

采用该方法可对催化剂连续或间歇再生，克服烷基化催化剂一般寿命短的缺陷，并且可以长时间维持烷基化催化剂的活性；在脱除原料中噻吩类杂质硫的同时使得产品量损失最小及产品辛烷值损失最少。

Based on this core/shell H-beta zeolite capsule catalyst, a novel palladium painted zeolite capsule catalyst with tripart core/shell/paint structure was prepared.

基于该沸石胶囊催化剂，通过沸石胶囊担载钯方法制备了另一种具有Core/Shell/Paint三分结构的新颖沸石胶囊催化剂。

Based on this core／shell Hbeta zeolite capsule catalyst, a novel palladium painted zeolite capsule catalyst with tripart core／shell／paint structure was prepared.

基于该沸石胶囊催化剂，通过沸石胶囊担载钯方法制备了另一种具有 Core／Shell／Paint 三分结构的新颖沸石胶囊催化剂。

There are different types of personal loans available.

有许多不同类型的个人贷款优惠。

The above mentioned teaching model of spiral rising can be used to avoid rigidness in teaching.

上述螺旋式上升的教学模式，可以避免教学形成模式後的僵化现象。