芳烃

The catalytic performances of prepared zeolite as catalysts for propane aromatization were investigated on a fixed-bed micro-reactor.

具有与苯分子动态直径相近的ZSM-5分子筛具有较高的烷烃转化率和芳烃选择性。

It is imaginable that the catalytic system could be used in cross-coupling of aryl bromides with other active methylene compounds.

预计该催化体系可以广泛用于溴代芳烃与其它含活泼亚甲基化合物的交叉偶联反应。

When the proportion of the aryl halides was changed,the aromatic products with different number substitutes could be obtained.

通过研究我们发现，活泼酰基与烯丙基在偶联反应中活性相当，可得到不同成环方式的产物，且当改变卤代物比例时，将得到不同数量取代芳烃的产物。

Asenic, PAHs, asbestus, coal tar and tobacoo smoke, vehicle emissions, cooking oil fumes and so on were all regarded to be important reasons for lung cancer.

无机砷、多环芳烃、石棉、煤焦油及香烟烟雾、汽车尾气、烹调油烟等环境混合物都被认为是肺癌发生的重要因素。

Through comparing with BaP content in coal smoke and traffic tunnels, it indicates that coking work is one of important sources of PAHs pollution.

通过与燃煤烟尘和交通隧道中BaP含量的比较，说明焦化作业是造成多环芳烃污染的重要污染源之一。

One comprehensive processing process of coke oven gas and coking crude benzol was introduced in the paper, this process includes low and medium temperature

本文介绍了一种焦炉煤气和焦化粗苯综合加工工艺，此工艺包括低、中温加氢单元，变压吸附单元，CrystaSulf一步法硫回收单元和GT-BTX芳烃萃取蒸馏单元。

Main management liquid gas, paraffin wax, bunker oil, aromatic hydrocarbon primarily petrification product.

主要经营液化气、石蜡、燃料油、芳烃为主的石化产品。

In this paper, in view of the problem of how to decrease butane consumption in course of aromatics extraction, solution of optimizing operating parametric is presented.

本文针对如何降低芳烃抽提过程中的丁烷消耗问题，提出优化过程操作参数的解决方法。

It can be seen from the above initial results, the two N-heterocyclic carbene palladium complexes should participate in the catalytic reaction or at least did partly.

初步结果可以得出，这两种N-杂环卡宾钯络合物参与或部分参与了卤代芳烃的催化偶联过程，对产物的顺利生成有某种程度的贡献。

It is recognized that high aromatic content will lower the cetane number of the diesel fuel and contribute significantly to the fo...

柴油中的芳烃一方面增加了污染物的排放，另一方面也降低了柴油的十六烷值。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐