我厂常压塔一线出多种油品,常因品种变换而改变工艺生产方案。原有的汽提塔液位调节方案(见图一),经常影响馏出口油品初馏点合格率,操作工人很有意见。为此,我们对原有方案进行如下定性分析。 Our factory atmospheric tower out of a variety of oils, often due to changes in species and change the process of production programs. The original stripper liquid level adjustment program (see Figure 1), often affect the distillate oil initial boiling point pass rate, the operating workers are very opinions. To this end, we make the following qualitative analysis of the original program.