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alkylation catalyst bed 烃化催化剂床层
Initial temperature of catalyst bed is wholly too high. 提高起始反应温度使催化剂床层温度整体过高导致飞温。
Coke deactivation of alkylation catalyst exhibited independent deactivation mechanism basically in supercritical phase. 反应器出口与入口处催化剂结焦量相近，在超临界条件下烷基化反应催化剂结焦失活基本上符合独立失活机制。
Using heteropoly acids as an alkylation catalyst is a new attempt. various propertiesof heteropoly acids for alkylation catalyst were investigated. 以杂多酸（磷钨酸和磷钼酸）作为烷基化催化剂是一种新的尝试。
Hydrogenation catalyst, selective hydrogenation catalyst, dehydrogenation catalyst, dehydration catalyst, alkylation catalyst, oxidization catalyst, catalyst for industry exhaust gas, gas purification catalyst, sorbents. 加氢催化剂,选择性加氢催化剂,脱氢催化剂,脱水催化剂,烷基化催化剂,氧化催化剂,工业废气处理催化剂,气体净化催化剂,吸附剂。
With development of cumene process using zeolite catalyst, the new alkylation catalyst having high activity, no corrosion and much environment will be the emphasis of future research and development. 随着分子筛催化合成异丙苯工艺的进展,高效、无腐蚀、符合环保要求的新型烷基化催化剂将是未来研究和开发的重点。
In a cold model reactor,the effects of simulated feedstock oil and gas flow on the expanding ratio of the catalyst bed were studied. 在冷模反应器内，考察了模拟原料油和气体流动对催化剂床层膨胀率的影响；
The diameter of a fixed-bed adiabatic reactor,height of catalyst bed and catalyst loading were calculated by using Runge-Kutta numerical solution method. 采用龙格-库塔数值解法，计算了不同设计方案时，固定床绝热反应器的直径、催化剂床层高度及装量；
Theresults showed that at residence time 2.4s and the reaction temperature of 393K and403K, the ethyl nitrite was converted completely at the catalyst bed height of 2m and1.5m respectively. 模拟结果表明停留时间为2.;4s;反应温度为393K和403K时;在反应器内床层高度为2m和1
This article discusses the relation among the height of catalyst bed -layer,the dissociated height of transporation(TDH),the operation of cyclone separator and the loss of catalyst in the regenerator. 讨论了再生器中催化剂床层高度,输送分离高度(TDH),旋风分离器操作与催化剂跑损的关系,提供了监控再生操作,降低催化剂跑损的措施。
The new development of the isobutene/butene alkylation catalysts has been introduced,including solid superacid catalyst,molecular sieve catalyst and supported heteropolyacid catalyst. 阐述了异丁烷/丁烯烷基化催化剂研究的新进展,包括固体超强酸催化剂、分子筛催化剂和负载型杂多酸催化剂。
Recent Development in Detergent Alkylation Catalyst of UOP UOP洗涤剂烷基化催化剂的研发近况
When operation shut down, the valency of vanadium in some catalysts rose owing to penetration of air through the catalyst bed. 有些催化剂在停车状况下,空气通过催化剂床层而导致催化剂中钒价态升高,催化剂活性下降。
Eric J Werninmont,Dick Durant.State of art high performance hydrogen peroxide catalyst beds[R].AIAA 2004-4147. 杨黄河.;过氧化氢分解反应及其催化剂的研究[D]
It mainly presents thermodynamics of benzene alkylation reaction and catalytic reaction mechanism as well as development ofvarious benzene alkylation catalysts in domestic and abread. 主要介绍了苯烷基化反应热力学和催化反应机理以及国内外各种苯烷基化催化剂的发展。
This paper discusses the reaction mechanism of phenal alkylating catalyst, and its developing process would be summarized in this paper. 综述了苯酚烷基化催化剂的发展过程,探讨了固体酸催化剂的反应机理。
There is a problem of pressure drop rising during coker gasoline hydrorefining in the catalyst beds of unit1-B of SINOPEC Guangzhou Company. 广州分公司加氢精制(一)B装置在进行焦化汽油加氢精制过程中存在催化剂床层压降升高过快的问题。
The ammonia synthesis catalyst is activated by circulating syngas through the catalyst beds under slowly increasing temperature. 这是关于合成氨催化剂升温活化的内容。
The overall height of catalyst bed as well as the optimal feeding point was obtained for different detritiation efficiency under specific mass transfer coefficient of catalysts. 根据不同的催化剂传质性能,计算了为达到特定脱氚率和电解池浓缩倍数所要求的交换床总高度和进液位置。
The brook warbled over its rocky bed. 小溪潺潺流过多石的河床。