查询词典 olefins

It was pointed out that the production of olefins via ethanol is an alternative route for cracking naphtha.

指出由乙醇制低碳烯烃是传统石脑油裂解的一条可替代途径。

A catalyst and an improved process for producing olefins by catalytic naphtha cracking are described.

公开了一种由石脑油催化裂化生产烯烃的催化剂和改进的方法。

The reaction principle of reducing naphtha olefins and increasing diesel oil by FCC process was discussed.

探讨了催化裂化过程降低汽油烯烃含量和多产柴油的反应原理。

The light cut is lower in sulfur, higher in octane and higher in olefins than the heavy cut.

光裁减是低在硫磺，高在八炭烷里和高的在烯烃里比重的裁减。

The reaction mechanism of pure olefin compounds and that of olefins in gasoline under different conditions were analyzed.

在自制的微反-色谱装置上，进行了单体烯烃和催化裂化汽油在不同条件下的催化裂化反应实验。

Use of the invention catalyst to polymerize alpha-olefins is exemplified.

本发明的催化剂可用于聚合α－烯烃。

This invention relates to a primary catalyst component for polymerization of olefins and its preparation.

本发明公开了一种用于烯烃聚合的主催化剂组分及其制备方法。

Researches in photosensitized catalytic oxidation under irradiation of sodium lamp were reviewed, especially the characteristics and mechanism of photosensitized catalytic oxidation of olefins, alkylphenols and complexes and their application.

加强光敏催化氧化反应的研究，在一些重要的有机化合物或有机中间体的合成中具有重要的意义和广阔的应用前景。

In this paper, the carbonylation has been studied of olefins in different solvent systems.

本文研究了烯烃在不同溶剂体系中进行羰基化反应的规律。

Using extensie MS, U, and NMR spectral analyses, the structure has been established as compound 1, aureoerticillactam, a 22-atom macrocyclic lactam incorporating both triene and tetraene conjugated olefins.

运用包括质谱、紫外及核磁共振的多种光谱分析，解析确定了该化合物1的结构，是一个含有共轭三烯和共轭四烯的22元环大环内酰胺。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新