1、

This paper introduced a method of recovery of styrene from waste polystyrene foam plastics by using an organic solvent as defoamer and adopting thermal cracking process. The yield of styrene is over 80%.

本文采用有机溶剂甲苯作为消泡剂,用热裂解法从废旧聚苯乙烯泡沫塑料中回收苯乙烯,苯乙烯收率可达80%以上。

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The authers has studied the phase characteristics and phase equilibrium of SDA ( solvent-deasphalting) of Dagang residue-I C 4 and Dagang residue mixed with some CCDO ( catalytic cracking decant oil)-I C 4 system under subcritical conditions systematically.

系统地研究了大港渣油-异丁烷体系及混有催化裂化澄清油的大港渣油-异丁烷体系在亚临界条件下,溶剂脱沥青过程的相特性及相平衡。

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The by products, wax and foots oil, in lube base oil production by solvent dewaxing were normally used as catalytic cracking feedstock.

蜡膏和蜡下油是溶剂脱蜡工艺生产润滑油基础油的副产物,一般只用作催化裂化原料。

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4、

Catalyst acidity and hydrogen donating abilities of hydrocarbon solvent had marked effect on quinoline cracking.

催化剂的酸性、烃类溶剂的供氢能力对喹啉裂化有显著影响.

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