aromatics

1.Technology Progress of producing BTX aromatics from heavy fraction of pyrolysis gasoline and correlative hydrodealkylation and non-aromatics hydrocracking techniques were reviewed in this paper.

综述了裂解汽油重质馏分增产BTX芳技进展以及与此相关加氢脱烷基和非芳加氢裂解技。

2.The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.

和基芳是非常不稳组分，可聚合产生凝胶。对于给和烷基芳，氢化可以改善产品质量。

3.the low viscosity index and the higher acidity were resulted from the low paraffinicity and the high content of aromatics,cyclane.

基础油组成中烷含量降低,芳和环烷含量上升是其酸值上升和黏度指数下降内在原因。

4.The refined solvent oil with less than 0.1%aromatics wa s used in medicine Brufen production as conventional solvent.

药品布洛芬生产新工艺中采用精制橡胶工业用溶剂油(精制溶剂油)作通用溶剂，要求其芳含量小于0.1%。

5.Abstract： The refined solvent oil with less than 0.1% aromatics wa s used in medicine Brufen production as conventional solvent.

摘 要： 药品布洛芬生产新工艺中采用精制橡胶工业用溶剂油(精制溶剂油)作通用溶剂，要求其芳含量小于0.1%。