摘要
对劣质蜡油 (减三线油和焦化蜡油的混合油 )加氢处理 催化裂化组合工艺在实验室进行了试验。结果表明 ,采用LH 0 3加氢催化剂 ,在压力 8.0MPa、空速约 1.5h- 1 、温度 3 60℃、氢油体积比为 70 0的条件下 ,蜡油的残炭、硫和胶质含量显著降低 ,加氢脱硫率达 90 .2 5 % ,脱氮率达 76.0 7% ,残炭脱除率达 75 %。与劣质蜡油直接作为催化裂化原料相比 ,劣质蜡油经加氢处理后作为催化裂化原料 ,产品分布明显改善 ,轻质油收率增加 6.67个百分点 ,总液体收率增加 3 .72个百分点 ,另外产品质量明显提高 ,汽油除辛烷值略有降低外 ,其余指标明显好转 ,柴油各项指标明显改善 ,尤其是十六烷值提高 11.8个单位 。
A combination process of inferior wax oil (mixed oil of the third vacuum stream oil and coking gas oil) hydrotreating and FCC has been tested in laboratory. The result shows that by adopting LH 03 catalyst, under the conditions of pressure 8.0 MPa, space velocity about 1.5 h -1 , temperature 360℃, and hydrogen / oil volume ratio 700, contents of carbon residue, sulfur and gum in gas oil have been decreased greatly. Hydrodesulfurization rate reaches 90.25%, denitrification rate 76.07% and carbon residue removal rate 75%. In comparison with the inferior gas oil directly used as FCC feedstock, product slate has been obviously improved after it is hydrotreated. Yields of light oil and total liquid increased by 6.67 and 3.72 percent point respectively. Furthermore, product quality is enhanced evidently. All targets of gasoline have been improved except that octane number decreased slightly. Diesel targets have been improved as well, especially diesel fuel cetane number increased 11.8 units. Propene content in cracking gas was increased.
出处
《炼油设计》
北大核心
2002年第7期9-12,共4页
Petroleum Refinery Engineering
