查询词典 butene

Approximately 50% of mixed C_4 hydrocarbons produced during FCC process is butene,which is a good feedstock to produce ethylene and propylene,especially propylene.

催化裂化过程中生产的混合碳4(简称为C4)中含有50%左右的丁烯，是很好的制乙烯和丙烯，尤其是丙烯的原料。

The benzene (or 80% of the butene) and the excess air in a fluidized bed or fixed-bed reactor for oxidation reaction of maleic anhydride was absorbed into the cycle of acid maleic acid.

将苯（或80%的丁烯）与过量空气在流化床或固定床反应器中进行氧化反应生成顺丁烯二酸酐，被循环的酸液吸收成顺丁烯二酸。

Using density functional theory, the rearrangement of butene double bond catalyzed by a 3T cluster model of zeolite was investigated.

基于含有两个Si和一个Al的分子筛3T簇模型，利用密度泛函方法研究了分子筛催化1-丁烯双键异构为cis-2-丁烯的反应机理。

Compared to the catalyst withγ-Al2O3 ball as support, performance of the catalyst prepared by Si-Al ball impregnated active component was better for mixed butene oligomerization.

与以γ-Al2O3球为载体的催化剂相比，用硅铝小球浸渍活性组分制得的催化剂催化混合丁烯齐聚的性能较好。

The alkylation of isobutane with butene is very important for the production of reformulated gasoline;however,the severe equipment corrosion and environmental hazards are involved in the current alkylation technology.Therefore,some novel alternative technologies are desired.

异丁烷和烯烃烷基化反应对新配方清洁汽油的生产具有重要意义，而目前的烷基化工艺存在严重的设备腐蚀和污染问题，因此亟需新的替代工艺。

The MTO process of alkene preparation,including ethylene,propylene,butene,by the synthesis of methanol from natural gas was discussed.

介绍了国内外天然气制烯烃技术发展概况，论述了以天然气为原料经合成甲醇进一步生产烯烃的 MTO工艺。

The effects of reaction temperature WHSV and addition of water vapor on skeletal isomerization of butene over SAPO-11 catalyst were investigated in a fixed-bed down-flow reactor.

在连续流动固定床反应装置上，考察了温度、空速及添加水蒸汽对混合丁烯在SAPO-11分子筛催化剂上骨架异构化的影响。

The isobutane/butene alkylation reactions over a solid acid catalyst were carried out under liquid phase and supercritical conditions respectively.

分别在液相和超临界两种反应条件下进行了固体酸烷基化催化剂的烷基化反应，并以超临界异丁烷流体对失活催化剂进行了再生。

Study on Alkylation of Isobutane with Butene over WO3/ZrO2 Strong Solid Acid Ⅱ.

篇名 WO3/ZrO2固体强酸催化剂上异丁烷／丁烯的烷基化反应Ⅱ。

The effects of degree of carbon deposition and regeneration,catalyst impurities,iso butylene impurity in feed stock as well as operational parameters on carbon deposition of W 201 catalyst for oxydehydrogenation of butene to butadiene have been studied.

从工业应用出发，研究了丁烯氧化脱氢制丁二烯W－201催化剂的结炭数量及再生、催化剂杂质元素分析、原料中异丁烯杂质及操作参数对催化剂结炭的影响等。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。