The effect of impurities in the propene on stability of the catalyst had been discussed. It was found that the stability of the catalyst were effected by various factors, especially by the trace amount of impurities like the H2O, CO and alkine.

  • 本文讨论了杂质对催化剂稳定性的影响,发现丙烯原料中的微量H2O、CO、炔烃等是主要的有害杂质,能够使催化剂产生中毒。
  • 来源:互联网摘选更新时间:2025-01-19 23:53:42

  • 重点词汇
  • ofprep. 关于;属于…的;由…制成;
  • impuritiesn.不纯( impurity的名词复数 );不洁;淫秽;杂质;
  • theart.这个;指已提到或易领会到的人或事物;指独一无二的、正常的或不言而喻的人或事物;用以泛指;与形容词连用,指事物或统称的人;用于姓氏的复数形式前,指家庭或夫妇;(指特定用途的事物)足够,恰好;每,一;当前的,本,此;(重读,表示所指的为知名或重要的人或事物)
  • itpron.它;他;正好是所需的;事实[情况];
  • were be的过去时复数和第二人称单数形式;有时代替 was,用于条件从句、动词 wish 之后等;
  • stabilityn.稳定(性),稳固;坚定,恒心;
  • COabbr.CO=Commander Officer(指挥官)的缩写;[财]更改订单;[体]心输出量;[计]= Care Of,转交;[机]二氧化碳气体保护焊;
  • thatdet. 那个,那;
  • likeprep.相似; 类似; 像; (询问意见)…怎么样; (指某人常做的事)符合…的特点,像…才会;
  • inprep. 在里面;在(某范围或空间内的)某一点;在(某物的形体或范围)中;在…内;在…中;进入
  • 相关例句
1、

The alkine and K rich volcanic rocks, which are source rocks of zeolite ores, formed in middle late Yanshanian stage, with tectonic dynamic mechanism of compression and left lateral shearing.

燕山中晚期以挤压-剪切(左行)为主的构造动力学机制控制了富碱高钾火山岩的发育,为沸石矿源岩的形成期;

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2、

In pickling method the rust and scales are removed by chemical reaction with mineral acids and also with certain alkine materials.

在酸洗方法中,锈蚀与氧化皮通过与矿物酸以及某些碱性物质之间产生的化学反应被清除。

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3、

Added antioxidants to the alkine hydrolysis system was able to reduce loss of ferulic acid caused by oxidation.

碱水解体系中添加抗氧化剂能减少阿魏酸的氧化破坏。

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4、

The pigments were stable in acidic and alkine media.

该色素在弱酸和弱碱条件下较稳定。

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5、

The thermal stability and luminous efficiency of triphenyl derivatives with different alkoxy were investigated.

观察了三联苯的热稳定性能,对不同长度烷氧基链三联苯的发光效率进行了比较。

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6、

A Mild Method of Introducing 7 α-Alkoxy in Cephalosporins

连氮基头孢菌素7α位引入烷氧基的温和方法

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7、

Preparation and Properties Research of Reverse Saturable Absorption Materials of Alkoxy Phthalocyanine Pb

烷氧基酞菁铅类反饱和吸收化合物的制备及性质研究

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8、

With increasing alkoxy chain length liquid crystalline characteristics was displayed.

我们认为烷氧基链长的增加有利于液晶性能的表现。

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9、

The result shows that alky starch glycoside size mixture, prepared by optimized processing parameters, has lower viscosity, and can satisfy sizing demands of high concentration, high pressure and low viscosity, it has better adhesion property to polyester fibers.

结果表明:采用优化后的工艺参数制备的烷基淀粉苷浆料具有较低的粘度,满足两高一低的上浆工艺要求,与涤纶纤维具有更好的粘附性。

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10、

Alky glycoside was synthesized by the direct reaction of glucose and lauric alcohol with pre-emulsification, and effect of emulsification process and durative adding reagents on the conversion and recovery ratio also studied.

研究了以葡萄糖、月桂醇为原料,采用预乳化工艺直接合成十二烷基糖苷,考察乳化工艺及连续进料对葡萄糖的转化率和糖苷的收率的影响。

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11、

The FZ-880 defoamer is mainly composed of dimethyl silicone and isooctanol as principal components, alky 1 polyoxyethylene ether as an emulsifier.

FZ-880消泡剂系以二甲基硅油与异辛醇为主体,配以烷基聚氧乙烯醚为乳化剂。

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12、

Catalytic Oxidation of Carbazole by Alky Peroxides over Mo Catalysts

油溶性过氧化物在钼催化剂下对咔唑的催化氧化

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13、

Study on Synthesis of N-Alky-Pyrrolidones

N-烃基吡咯烷酮合成工艺研究

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14、

Organic gases are mainly composed of alky gases, whereas inorganic gases are dominated by CO_2;

有机成因的天然气以烷烃气组分为主,无机成因的天然气则主要CO2占优势;

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15、

Study on Performance of Fe 0.5 Sr 0.5 CoO 3 Alky Sensitive Ceramics

Fe(0.5)Sr(0.5)CoO3酒敏陶瓷性能的研究

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16、

Produced by the series of alkyd paint and excellent quality.

所生产之醇酸树脂系列涂料,质量优良。

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17、

Current status of the alkyd paint in China and several issues interrelated

我国醇酸树脂涂料的现状与有关问题

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18、
19、

Preparation of Styrene Modified Alkyd Resin and Fast Drying Alkyd Paint

苯乙烯改性醇酸树脂及快干醇酸漆的研制

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20、

The FCC unit produces large quantity of raw materials for MTBE and alkylate producing.

催化裂化装置还生产大量可以用于生产优质汽油组分的气体原料。

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