Method for producing clean diesel oil

• Main Authors: YANG MAOLI, TONG PAN, KE YUJIN, LUO HUIJUAN, LI ZHAOYUAN, HUANG YIYAO, LU CHAOXIA, HUANG FUCHUAN, CHEN CONGRONG, MO YUFEI, XIE YUNGUO, LI HONGJUN
• Format: Patent
• Language: Chinese; English
• Published: 24.11.2010
• Subjects: CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; METALLURGY; MINERAL WAXES; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE

The invention relates to a method for producing clean diesel oil, a plurality of bed layers are arranged in a catalytic reaction tower, different hydrotreating or hydrocracking catalysts are arranged in the bed layers, and active components in the catalysts comprise noble metals in group VIII transition metals or Fe, Co and Ni, Mo, W and Mn in group VI, as well as catalyst additives. The method is used for producing the clean diesel oil, and the two processes of hydrotreating and hydrocracking are in synchronous series operation in the catalytic reaction tower, thereby not only accelerating the process of carrying out hydrodesulfurization on sulfur-containing fractions of diesel oil, removing aromatic hydrocarbons, and producing the clean diesel oil, but also greatly reducing equipment required by production, effectively reducing the cost and being very conductive to promotion.