水生成
- 与 水生成 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Zinc Phosphate will render coating materials excellent rust-preventing performance and good resistance to water.
磷酸锌在三价铁离子具有很强的缩合能力,这种磷酸锌的根离子与铁阳极反应,可形成以磷酸铁为主体的坚固的保护膜,这种致密的纯化膜不溶于水、硬度高,附着力优异呈现出卓越的防锈性能,由于磷酸锌基因具有很好活性,能与很多金属离子作用生成络合物,因此,具有良好的防锈效果。
-
An exothermic reaction occured with separation of water; start refluxing with a Dean-Stark trap attached to the reflux condenser to collect the water that is generated in the reaction.
放热反应发生的同时有水生成;用一个dean-stark trap接在回流冷凝管上用于收集反应中生成的水。
-
The method solves the problems better through adopting the following technical proposal that: the method takes the solid super acid consisting of the VIB group elements or the VIB group elements and the IVB group elements in the periodic table of elements and loaded on a symbiosis molecular sieve as catalyst, and naphtha with the component being C4-C10 as a raw material so as to carry out catalytic cracking reaction at a temperature of between 550 and 700 DEG C, under a pressure of between 0.01 and 0.5 MPa, at a reaction weight space velocity of between 0.1 and 4 hours and with the weight ratio between water and naphtha of between 0.5:1 and 4:1, thereby generating ethylene and propylene.
本发明涉及一种催化裂解制乙烯丙烯的方法,主要解决现有催化裂解制乙烯丙烯催化剂的使用温度高,活性低,乙烯丙烯选择性差的问题,本发明通过使用在共生分子筛上负载由元素周期表VIB族元素或VIB族元素和IVB族元素组成的固体超强酸作为催化剂,以组份为C 4 ~C 10 的石脑油为原料,在反应温度为550~700℃,反应压力为0.01~0.5MPa,反应重量空速为0.1~4小时-1 ,水/石脑油重量比为0.5~4∶1的条件下,进行催化裂解反应生成乙烯丙烯的技术方案,较好地解决了该问题,可用于催化裂解制乙烯丙烯的工业生产中。
-
It is fragrance-free, pigment-free, weak acidic and mild, and can make eye skin stretchy and smooth.
干燥的冬天或晚间可选用DCE加强修复霜,需要清爽感觉的夏天或早晨可选用DCE加强修复乳液,也可根据肌肤干燥状态搭配使用。 DCE 眼无痕美容液(J-43) EYE TREATMENT ESSENCE 30mL Wrinkle-free eye essence 功能:本品采用鲨鱼精华、胶原蛋白、弹性蛋白、透明质酸、复合氨基酸等主要成份;能抑制高分子成份减少,同时促进高分子成份生成,充分补充眼部所需的弹性和水润,防止因干燥而引起的小细纹,保持肌肤的紧致张力,无香料、无色素、呈弱酸性,温和零刺激;能维持眼部弹力、保持皮肤光滑。
-
In this paper, the mechanisms of the generation, migration and production for coal seam gas are researched and the geological model for coal seam gas reservoir simulation is presented, according to the theories and methods of coal seam gas geology, petroleum geology and dynamic of fluids through porous media. A three-dimensional, dual-porosity, two-phase, pseudo-steady, non-equilibrium sorption mathematical model is established with the help of petroleum reservoir numerical simulation method. After that, this complex mathematical mode is approximated and solved by finite-difference and fully implicit methods. Coal Seam Gas Reservoir Simulation software in 1. 0 version (CSGRS 1. 0) with Chinese interface of pre-and post-processing function is developed.
本文应用煤层气地质学、石油天然气地质学和渗流力学等学科的理论和方法,研究了煤储层中煤层气的生成、储集、运移和产出机理,概化出了煤层气储层模拟的地质模型;以油气藏数值模拟和数值计算方法为工具,建立了描述三维、双孔隙、非平衡吸附、拟稳态条件下气-水两相流体混相运移规律的煤层气储层模拟的数学模型;详细推导出了该数学模型的全隐式求解方法;并借助计算机技术开发了具有中文操作界面的煤层气储层数值模拟软件CSGRS 1.0,实现了这一复杂数学模型的数值求解。
-
The ancients, he said, held that Tethys the God of the ocean had made the world from water; Anaximenes and Diogenes made air prior to water, while Hippasus of Metapontium and Heraclitus of Ephesus said that fire was the ultimate substance of the world, and Empedocles added a fourth, earth, and said that these four elements were together the substance of reality; Anaxagoras of Clazomenae, said that the principles are infinite in number, and are not in any sense generated or destroyed, but remain eternally.
他说,古代人相信世界是海神Tethys用水造的;阿那克西米尼和第欧根尼使气先于水,而Metapontium的喜帕索斯和埃菲索斯的赫拉克利特说火是世界的最初substance,而恩培多克勒添加了第四个,土,并说这四个元素一起是现实的substance;Clazomenae的阿那克萨哥拉,说本原在数上是无限的,且在任何意义上不被生成或毁灭,而永远保持不变。
-
The yield of the diesel oil is higher than 80% by the method, and the cetane number will be as high as 80, The water produced by hydrofining process can be prevented to go into the isocracking reacktor by this method, the availability and using periodic can also be improved.
该方法柴油产品收率高于80重%,其十六烷值高达80,避免了加氢精制过程生成的水进入到异构裂化反应器中,改善催化剂的利用率和使用周期。
-
Single component and multi\|component of iron system colloidal catalyst \Ali\|Bu\-3CH\-2CHCH\-2Cl\ were mixed by different ratios in hydrogenated gasoline medium at 25℃.This paper studied the relationship between the nonaqueous systematic electroconductivity and the concentration of catalyst components.In combination with Tyndall effect,polymerization experimental results,Ali\|Bu\-3 existed in associated state and dissociated into ionpair.The reaction between Ali\|Bu\-3 and Fenaph\-2 was the main reaction which formed colloidal core.Ali\|Bu\-3 reacted on CH\-2CHCH\-2Cl and Ali\|Bu\-2Cl was yielded which joined the formation of active center on the surface of colloidal core.The excessive Ali\|Bu\-3 was dissociated into ionpair which formed double electrode layer,and the double electrode layer kept the colloidal particles relatively stable.
研究了在25℃加氢汽油介质中,铁系胶体催化剂[Fenaph2Ali-Bu3―CH2==CHCH2Cl]单组分、多组分按不同配比混合,非水体系电导率与浓度的关系,结合Tyndall效应,聚合实验结果,得出Ali-Bu3以缔合状态存在并解离成离子对它同环烷酸亚铁的作用是形成胶核的主要反应,与氯丙烯反应生成的氯化异丁基铝,在胶核表面参与形成活性中心由过量Ali-Bu3解离的离子对形成的双电层结构,使胶粒保持相对稳定。
- 推荐网络例句
-
I will endeavour to find you some assistance.
我尽力帮你找人帮忙。
-
At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.
起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像,后来回台湾,甚至去年在北京,居然也四处看见她的海报,才惊讶她的魅力之大。
-
Ah may dee:You are chinese living in a democratic country.
你是居住在民主国家的中国人吧。