摘要
针对催化裂化汽油加氢脱硫降烯烃组合工艺技术中,芳构化降烯烃辛烷值恢复催化剂(M)应用于重馏分汽油加氢时,存在因反应温度高而影响催化剂长周期运行及液体总收率等问题,对催化剂进行了优化升级改进研究,在M催化剂的基础上,通过对HZSM-5分子筛原料改进及调变活性金属组分,研制出活性高、稳定性好的催化裂化重汽油芳构化降烯烃辛烷值恢复催化剂M-Ⅱ。催化剂的活性评价结果表明,与M催化剂相比,在烯烃降低幅度大致相当的情况下,采用M-Ⅱ催化剂时,芳烃含量增加1.3百分点,RON提高0.7个单位。
The aromatization and olefin-reduction catalyst M had been applied in commercial unit for desulfurization and olefin-reduction process of FCCG heavy fraction.To overcome the shortcomings of lower liquid yield and shorter cycle length at higher reaction temperature,a series of modification procedures were taken to improve the activity and stability of the catalyst M.A modified catalyst M-Ⅱ was then successfully developed by improving manufacture of HZSM-5 and the ratio of the active metals.The results of the performance test of M-Ⅱ,compared with that of catalyst M,show that aromatics increases more than 1.3 ％ and RON is 0.7 higher than M at the close reduction level of olefin.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2013年第10期65-70,共6页
Petroleum Processing and Petrochemicals
