1) superposition
叠合区
2) dimerization
叠合
1.
By analyzing and characterizing the deactivated catalyst,it was found that the contaminations of the dimerization-etherification catalyst from metal cations and basic nitrates were the main factor of the catalyst deactivation.
通过对失活催化剂的分析表征确定金属离子和碱性氮化物的污染是引起叠合醚化催化剂失活的重要原因。
2.
This route is carried out in two steps; selective dimerization of isobutene (from C4 steams) to form di-isobutene, and hydrogenation to form saturated product isooctane.
异丁烯叠合-加氢可获得高辛烷值的异辛烷,是生产烷基化油的新途径,被称为间接烷基化技术。
3) polymerization
叠合
1.
The olefin-reducing performance of the developed catalyst is investigated on a continuous-flow fixed-bed reactor with FCC naphtha as feedstock, and the impact of process conditions on olefin reduction by polymerization is studied.
在实验室小型连续流动式固定床反应器上,以催化裂化汽油为原料,考察了所研制催化剂的降烯烃性能,探讨了工艺条件对叠合降烯烃的影响,结果表明,M-A/γ-Al2O3催化剂具有很高的活性、稳定性和选择性。
2.
This paper presents a combined technology for mixed C 4 olefin polymerization via prereactor and catalytic distillation reactor.
介绍了一种混合碳四烯烃叠合利用的预反和催化蒸馏组合技术,该技术以酸性阳离子交换树脂为催化剂,可以将混合碳四烯烃中的95%以上的异丁烯叠合反应生成二异丁烯和异辛烯,且部分正丁烯也参与二聚或共聚。
4) superposition
叠合
1.
An analysis of the imaging of two concave spherical reflecting mirrors in superposition;
两叠合的凹球面反射镜成像分析
2.
No matter what kinds of methods are used to search the best superposition of two molecules like grid-based integral or efficient iterative technique, selecting the relative situations of molecules is needed.
分子空间结构相似性比较的指标函数可以定量地描述两个分子空间结构相似性大小,但难题在于如何确定分子初始相对位置,以保证得到全局最优叠合。
3.
Net ameliorates the traditional polynomials image registration method, puts forward a new method using orthogonal polynomials, expatiates the principle, arithmetic of this technique, and then realizes the clipping registration and superposition of vectorgraph and remote-sensing image.
Net 平台的基础上,改进了传统的多项式图像配准方法,提出了一种利用正交多项式进行图像配准的新思路,从而进一步实现了矢量图与遥感图像的快速叠合。
5) oligomerization
叠合
1.
The catalyst for FCC gasoline oligomerization to produce diesel oil was prepared by dipping method.
采用浸渍法制备了FCC汽油叠合生产柴油催化剂,考察了活性金属Ni负载量、助催化剂、催化剂制备条件对催化剂性能的影响,以及催化剂的稳定性和再生性能。
2.
A method had been developed to analyze C_4 olefin oligomerization-etherification products by gas chromatography HP-6890N system.
介绍一种利用HP-6890N气相色谱仪分析C4烯烃叠合-醚化产物的方法。
3.
The catalyst behavior of Fe (2/3) x Ni 1 x SO 4 P 2O 5/ γ Al 2O 3 in 1 butene oligomerization was studied.
研究了 Fe(2 /3 ) x Ni1 - x SO4-P2 O5 /γ-Al2 O3催化剂对 1 -丁烯叠合反应的催化性能 ,考察了催化剂 n( Fe) /n( Fe+Ni)比、焙烧温度、担载量及载体等对催化性能的影响。
6) Congruence
叠合
1.
Another way to judge whether space curves can congruence;
判断空间曲线可叠合的又一方法
参考词条
补充资料：催化叠合
分子式：
CAS号：
性质：炼油工业较早应用的工艺之一。其工艺流程简单，原料易得，产品汽油的辛烷值高。按原料组成和目的产品的不同，叠合工艺可分两类。(1)非选择性叠合，用未经分离的C3、C4液化气作原料，目的是生产高辛烷值的叠合汽油。(2)选择性叠合，用组成比较单一的丙烯或丁烯馏分作原料，生产某种特定的产品，如丙烯选择性叠合生产四聚丙烯作洗涤剂或增塑剂；异丁烯选择性叠合生产高辛烷值汽油等。
CAS号：
性质：炼油工业较早应用的工艺之一。其工艺流程简单，原料易得，产品汽油的辛烷值高。按原料组成和目的产品的不同，叠合工艺可分两类。(1)非选择性叠合，用未经分离的C3、C4液化气作原料，目的是生产高辛烷值的叠合汽油。(2)选择性叠合，用组成比较单一的丙烯或丁烯馏分作原料，生产某种特定的产品，如丙烯选择性叠合生产四聚丙烯作洗涤剂或增塑剂；异丁烯选择性叠合生产高辛烷值汽油等。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。