管式炉法改质沥青连续生产工艺

Continuous production process for modified pitch by tubular furnace method

简述了国内外焦化企业应用的各类改质沥青生产工艺,重点介绍了目前已实现工业化的负压工况下管式炉法改质沥青连续生产工艺。该工艺反应温度低,运行周期长,能耗低,环保水平高,运行稳定,适用于低QI中温沥青原料。

Different processes for modified pitch production,both at home and abroad,are introduced in this paper,in particular,the continuous production process for modified pitch by tubular furnace method under negative pressure,which has been put into commercial production at present. This process is characterized with low reaction temperature,long operation period,low energy consumption,environment-friendly production and stable operation,which is applicable to medium temperature pitch feedstock with low QI.