Regular carrier catalyst with desulfurization effect as well as preparation and application thereof
A technology for regular carrier and desulfurization, which is applied to a regular carrier catalyst with desulfurization effect and the field of preparation and application thereof, can solve the problems such as the decrease of octane number of gasoline products, affecting the effect of desulfurization of sulfur-containing hydrocarbons, and the loss of octane number.
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preparation example Construction
[0053] The method for preparing a structured carrier catalyst provided by the invention includes the step of preparing a suspension. The preparation method of the suspension includes: forming a mixture of metal powder, a hydroxyl-containing solvent and a surfactant, and treating it under ultrasonic waves to obtain a mixed liquid after ultrasonic treatment; wherein, during the ultrasonic treatment process, the fine particles are peeled off from the metal powder The metal particles are suspended in a hydroxyl-containing solvent (solvent for short); the larger particles are separated from the ultrasonically mixed solution to obtain a suspension, and the suspension contains fine particles containing modified metals. The metal powder (also known as metal powder) can be pure metal powder (when the metal film only contains modified metal and the modified metal is one kind), alloy powder containing modified metal and boron, containing Alloy powder of various modified metals. Wherein,...
specific Embodiment approach
[0065] A specific embodiment of the preparation method of the structured carrier catalyst provided by the present invention includes the following steps: uniformly mixing the metal powder and the hydroxyl-containing solvent, and then using a specific ultrasonic power of 50-250W / (100g hydroxyl-containing solvent), preferably 100- Ultrasonic treatment at a power of 150W / (100g hydroxyl-containing solvent) for 5 to 8 hours, and then centrifuge the ultrasonically mixed solution at 1200 to 3000 rpm, preferably 1500 to 2500 rpm, to obtain a suspension; then The substrate and / or molecular sieve and / or particles containing the substrate and molecular sieve are mixed with the suspension, uniformly dispersed, freeze-dried, and coated with a regular carrier to prepare a regular carrier catalyst. The average particle size of the metal powder is less than 20 microns, preferably 1-15 microns or 3-18 microns; the metal powder: hydroxyl-containing solvent = 1:2-15 weight ratio, preferably 1:5-1...
Embodiment 1
[0095] (1) Prepare the substrate containing metal film:
[0096] First, add 10g of nickel powder (average particle size of nickel powder is 10 microns, source: Sinopharm Group) and 100ml of ethylene glycol (Sinopharm Group, purity AR) to a 200ml jar, mix well, then add 60mg of surfactant Gandan Na2SO4 (purity AR, source: Nanjing Pars Biotechnology Co., Ltd.); then, the reaction vessel (jar) was placed in an ultrasonic cleaning machine, and was ultrasonically treated with 160W power for 6h (frequency 40KHz); the ultrasonically The liquid is centrifuged at 1500r / min for 20min in a centrifuge, and the supernatant (i.e. suspension) is taken out with a straw. The concentration of metallic nickel in the suspension is 15g / Kg, D 90 is 5nm;
[0097] Mix 13.5 g of the above-mentioned alumina matrix particles JZ1 and 10 g of deionized water, and grind to obtain D 90 It is a 5 micron slurry, which is added to 100 grams of the above suspension; stirred for 10 minutes to obtain a mixture,...
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