关键词: STRONG, 沸腾床加氢, 固定床加氢裂化, 煤焦油加氢, 产品收率, 能耗

Abstract:

The first unit in domestic that using the combination technology of ebullated bed hydrogena-tion+fixed bed hydrocracking to produce diesel oil and naphtha with medium and low temperature full distillate coal tar as feedstocks was successfully put into operation in a factory in Shaanxi province in August 2020. The STRONG ebullated bed hydrogenation technology independently developed by SINOPEC was used for the first time in the ebullated bed hydrogenation unit. This paper introduces the general situation of the unit and the main technological characteristics, and analyzes and summarizes the operation problems of the unit based on the first shutdown and maintenance. Through the comparison of design and operation data, the operation parameters of the unit have reached or exceeded the design value. The naphtha product yield is up to 33%, which can be used as the feedstock of reforming unit. The diesel product yield reaches 60%, which is a high quality diesel blending component. The energy consumption of the unit is 74.48 kilograms of oil equivalent per ton feedstock, which is lower than the design energy consumption.

Key words: STRONG, ebullated bed hydrogenation, fixed bed hydrocracking, coal tar hydrogenation, product yield, energy consumption