Deep processing method of coal tar

The invention discloses a coal tar deep processing method, which comprises the following steps: conveying oil gas obtained by decompressing maltha in a vacuum tower into a vacuum tank, washing the oil gas by washing oil, feeding the washed oil gas into a deacidification reaction tower for deacidification, and conveying the deacidified oil gas into a liquid seal tank through a vacuum pump for circulation; the invention also discloses a structure of the deacidification reaction tower device. The process flow is simple, the acid removal effect is good, the maintenance time and cost are saved, and continuous and stable operation of production is guaranteed. 本发明公开了一种煤焦油深加工方法，将减压塔内的软沥青减压处理得到的油气输送到真空槽中通过洗油洗涤后进入到除酸反应塔内进行除酸，除酸后的油气再通过真空泵输送到液封槽进行循环；同时公开了除酸反应塔装置的结构。本发明工艺流程简单、除酸效果好，节约维修时间和费用，保障生产连续稳定运行。