GRADING METHOD FOR CATALYST AND PRODUCTION METHOD FOR BASE OIL

A grading method for a catalyst and a production method for a base oil, comprising a catalytic reaction unit and a protective agent unit located in front of the catalytic reaction unit in a material flowing direction. In the catalytic reaction unit, the total amount of acid in the catalyst increases...

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Bibliographische Detailangaben
Hauptverfasser:	XIE, Bin, GAO, Yuxin, GUO, Jintao, LIU, Wenyong, ZHANG, Quanguo, LIU, Yanfeng, ZHAO, Tan, SUN, Famin, YANG, Xiaodong, LU, Xuefeng
Format:	Patent
Sprache:	chi ; eng ; fre
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CRACKING HYDROCARBON OILS FUELS LUBRICANTS METALLURGY MINERAL WAXES PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL 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 THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A grading method for a catalyst and a production method for a base oil, comprising a catalytic reaction unit and a protective agent unit located in front of the catalytic reaction unit in a material flowing direction. In the catalytic reaction unit, the total amount of acid in the catalyst increases and then decreases in the material flowing direction; the molar ratio of the content of acid in the catalyst increases and then decreases. The catalytic reaction unit sequentially comprises a first catalyst layer and a second catalyst layer which are adjacent to each other. In the first catalyst layer, the content of weak acid is greater than that of medium strong acid; in the second catalyst layer, the content of weak acid is less than that of medium strong acid. In the protective agent unit, the content of active metal in a protective agent increases or remains unchanged; the pore volume of the protective agent is reduced, and the specific surface area of the protective agent is increased. By grading the catalys