词Improvements on the process of light benzol forerunning are described in this paper, Practice shows that these improvements are successful.
介
轻苯初馏工艺
生产改进。实践证明，这些改进是成功。
Improvements on the process of light benzol forerunning are described in this paper, Practice shows that these improvements are successful.
介轻苯初馏工艺生产改进。实践证明，这些改进是成功。
The effect of outlet temperature and pressure of the debenzolization partial condenser on the rough benzol qualiy and output is explained and analysed.
分析了脱苯分缩器出口温度、压力对粗苯质量、产量
。
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