关键词: RHC-130, 加氢改质降凝, 催化剂, 活性稳定性, 低凝柴油, 十六烷值, 高凝点组分, 萘系烃

Abstract: To meet the market demand for low-freezing diesel and improve the economic efficiency of diesel pour point depression units, SINOPEC Research Institute of Petroleum Processing Co., Ltd. has developed a new hydroupgrading and pour point depression catalyst, designated as RHC-130. The pilot experiment shows that using RHC-130 results in stable product properties; both -20# and -35# diesel produced can simultaneously meet the requirements for freezing point, cold filter point, and cetane number. Based on RHC-130, it is possible to flexibly produce -35#, -20#, and -10# diesel under relatively mild reaction conditions, while achieving multiple goals such as reducing the freezing point and cold filter point, and increasing the cetane number. RHC-130 has higher selectivity for the conversion of high carbon fraction of diesel, ensuring product yield. The use of this catalyst and related pour point depression technology can solve the problems of unsatisfactory cold filter point reduction and decreased cetane number and yield while lowering the diesel freezing point, greatly improving the flexibility and utilization rate of the diesel pour point depression unit, and increasing economic benefits.

Key words: RHC-130, hydroupgrading and pour point depression, catalyst, activity stability, low-freezing diesel, cetane number, high-freezing component, naphthalene hydrocarbon