煤焦油减压蒸馏新工艺

New process of coal tar negative pressure distillation

论述了目前煤焦油蒸馏工艺的流程、特点和适用范围,详细介绍了新开发的煤焦油减压蒸馏工艺方案及特点。通过比较,彰显了新工艺的优越性和推广价值,为国内焦油蒸馏新建和改造装置提供了更加完善的工艺技术。

Discussion is made in this paper in terms of process flow,technical features and purposes of coal tar distillation at present.The newly developed negative pressure distillation process of coal tar and its features are introduced in details.By comparison,the strong points and values of the new process is highlighted.It provides a better technology for new or retrofitted tar distillation units in China.