Improvements on the process of light benzol forerunning are described in this paper, Practice shows that these improvements are successful.

介绍轻苯初馏工艺的生产改。明，这些改是成功的。

The effect of outlet temperature and pressure of the debenzolization partial condenser on the rough benzol qualiy and output is explained and analysed.

脱苯缩器出口温度、压力对粗苯质量、产量的影响。