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

介轻初馏工艺的生产改。实践证明，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.

分析了脱分缩器出口温度、压力质量、产量的影响。