Hydrocarbon oil desulfurization catalyst containing IMF-structure molecular sieve, preparation method of hydrocarbon oil desulfurization catalyst and process for hydrocarbon oil desulfurization
A technology of desulfurization catalyst and molecular sieve, which is applied in the direction of molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of increased operating costs and easy wear of catalysts, and achieves reduced operating and application costs and good wear resistance , the effect of high breakthrough sulfur capacity
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[0036] The present invention also provides the preparation method of the hydrocarbon oil desulfurization catalyst provided by the present invention, the preparation method comprising: a, the sulfur storage metal oxide and / or the precursor of the sulfur storage metal oxide, the precursor of the inorganic oxide binder , boron nitride, molecular sieve with IMF structure, water and an acidic liquid are mixed to obtain a carrier slurry; wherein, the pH value of the carrier slurry is 1-5; b, the obtained carrier slurry is sequentially spray-dried and formed, the first drying and the second 1. Roasting to obtain a catalyst carrier; c. Introducing the precursor of the metal promoter into the catalyst carrier and then performing the second drying and second calcination in sequence; optionally d. Reducing the product obtained in step c under a hydrogen-containing atmosphere; A hydrocarbon oil desulfurization catalyst is obtained.
[0037] According to the present invention, the precurso...
Embodiment approach
[0047] One embodiment, the present invention specifically includes the following solutions:
[0048] 1. A desulfurization catalyst comprising:
[0049] 1) Sulfur-storage metal oxides, wherein the sulfur-storage metal is selected from one or more of the metals of Group IIB of the Periodic Table of the Elements, the metals of Group VB of the Periodic Table of the Elements, and the metals of Group VIB of the Periodic Table of the Elements, preferably selected from One or more of zinc, cadmium, niobium, tantalum, chromium, molybdenum, tungsten and vanadium, more preferably one or more selected from zinc, molybdenum and vanadium, more preferably zinc;
[0050] 2) Inorganic binder, preferably one or more selected from heat-resistant inorganic oxides, more preferably selected from one or more of aluminum oxide, silicon oxide, titanium oxide and tin oxide, more preferably selected from One or more of aluminum oxide, titanium oxide and tin oxide;
[0051] 3) The carrier component is ...
Embodiment 1
[0099] Get 2.38kg of titanium tetrachloride (Beijing Chemical Plant, analytically pure, 99% by weight) slowly add 4.6kg of 5% by weight of dilute hydrochloric acid, stir slowly to avoid the precipitation of titanium oxide crystals, and obtain a light yellow transparent titanium sol pH=2.0 ;
[0100] With 4.43kg of zinc oxide powder (Headhorse company, purity 99.7% by weight), 0.75kg of HIM-5 molecular sieve (Sinopec Catalyst Changling Branch Company, containing dry basis 0.70kg, SiO 2 :Al 2 o 3 The molar ratio is 25), 2.06kg of hexagonal boron nitride (purity>99.0%, Qinhuangdao Yinuo High-tech Material Development Co., Ltd.) and 6.57kg of deionized water are mixed, and after stirring for 30 minutes, zinc oxide, HIM-5 molecular sieve and a mixed slurry of hexagonal boron nitride; then add the above-mentioned titanium sol, mix and stir for 1 hour to obtain a carrier slurry with a pH value of 3.5;
[0101] The resulting carrier slurry was used in Niro Bowen Nozzle Tower TM Th...
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