查询词典 ethene

Ethene are mainly adsorbed by p electron interaction with high frequency sites in Cs/HMor.

Cs~+离子置换了低频吸附位SiOH中的氢后，转变为高频吸附中心Si-O-Cs。

A soft-sensing on the rate of non-occupied time and catalyzer selection of process of synthetic acid ethene in a refinery was studied.

以某石化厂乙烯气相法合成醋酸乙烯反应过程的空时得率和催化剂选择性软测量建模为研究对象，基于现场采集数据及机理分析，确定了辅助变量。

The obtained activation barrier of β-scission of 1-butene is 217 kJmol^(-1) in the reverse reaction of ethene dimerization.

反应的逆过程也就是1-丁烯在酸性分子筛表面的1-丁基烷氧化合物发生B分裂反应，计算所得相应的l-丁烯B分裂反应的能垒为217kJmol^(-1)，远高于相应的乙烯二聚反应能垒。

At present, due to the shortage of un-regenerated resource as petroleum and the requirements of agricultural development, BBCA Group takes the advantage of own bio-technology to stress development of bio-material such as corn, cassava, sorgo, stalk etc to produce fuel alcohol, bio-ethene and its ramification, fibre-polyester, degradable plastic, nontoxic plastic and paint solvent ect, and most of products mentioned above can replace petroleum chemical products.

目前，由于石油等不可再生资源紧缺和农业发展的需要，丰原利用自身生物技术的优势，重点发展以各种生物质（玉米、木薯、红薯、甜高梁、作物秸杆等）为原料生产燃料酒精、生物乙烯及其衍生物、纺织品原料纤维聚酯、聚乳酸生物可降解塑料、无毒增塑剂、油漆涂料的无毒溶剂等系列产品，上述产品可大部分替代石油化工产品。

At present,due to the shortage of un-regenerated resource as petroleum and the requirements of agricultural development,BBCA Group takes the advantage of own bio-technology to stress development of bio-material such as corn,cassava,sorgo,stalk etcto produce fuel alcohol,bio-ethene and its ramification,fibre-polyester,degradable plastic,nontoxic plastic and paint solvent ect,and most of products mentioned above can replace petroleum chemical products.

十年产业发展，丰原集团农产品深加工能力已达360万吨/年，加工产品主要应用于食品添加剂、饲料添加剂、洗涤剂、精细化工、医药原料等产业目前，由于石油等不可再生资源紧缺和农业发展的需要，丰原利用自身生物技术的优势，重点发展以各种生物质(玉米、木薯、红薯、甜高梁、作物秸杆等)为原料生产燃料酒精、生物乙烯及其衍生物、纺织品原料纤维聚酯、聚乳酸生物可降解塑料、无毒增塑剂、油漆涂料的无毒溶剂等系列产品，上述产品可大部分替代石油化工产品

The thermodynamic functions of NO removal by low carbon hydrocarbons such as methane, ethane, ethene, ethine, propane and propene are calculated,and enthalpy changes of reaction producing activated particles from low carbon hydrocarbons in electric field are calculated to find out the appropriate low carbon hydrocarbons for removing NO.

通过计算甲烷、乙烷、乙烯、乙炔、丙烷和丙烯等低碳烃与NO反应的热力学函数和低碳烃在电场作用下产生活性粒子的反应焓变，找出合适的低碳烃作为脱除NO的添加剂。

This result laid a foundation of theory and experiment for the development of mordenite sorbent to separate ethene.NaY was firstly modified using two ion-exchange and two calcinations method which was heated by microwave.

首次采用微波加热二次离子交换二次焙烧的方法改性NaY分子筛，制得CeY、CeY、CuY、AgY、KY、MgY和SrY，并用于吸附噻吩和苯，其中CeY分子筛对噻吩具有最好的吸附容量和选择性。

Used the PERCA method union tubular mobile technology basically to determine the free radical production of the ozone ethene reaction, the result has been consistent with the literature value.

采用PERCA方法结合管式流动技术测定了臭氧乙烯反应生成的自由基的产率，结果与文献值基本一致。

It is a new technique to synthesize SAPO 34 molecular sieve using cheap triethylamine (Et 3N) as the template, and the selectivity of this molecular sieve for ethene and propene can be improved further.

采用X射线衍射、扫描电镜、氨吸附红外光谱及核磁共振等表征手段，研究了以氟化氢三乙胺为复合模板剂合成的SAPO 34分子筛。

The process of the invention mainly comprises disintegrating substrate material of waste printing wiring board into particle material whose particle size is 0.5-3.5 micron, the mixing with double bond reactant, adding with phenyl ethene, conducting reaction under gamma ray irradiation condition, modifying substrate material particles, then commixing material which is treated with acrylonitrile-butadiene-styrene, wherein the adding quantity of substrate material particle is 35%-35%, conducting extrusion pelleting for commixing material on a plastic extruder, wherein extruding temperature is 200-250 DEG C, and finally obtaining plasticity plastic particles with excellent property.

本发明方法主要是：先将废旧印刷线路板基板材料粉碎成为粒径为0.5～3.5微米的颗粒料，然后与具有双键的反应物混合，再加入苯乙烯，并在γ射线的辐照条件下进行反应，将基板材料颗粒进行改性处理。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。