Preparation method and application of Pt-MoS2/LDHS hydrocracking catalyst
A pt-mos2, catalyst technology, applied in the direction of catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems of short catalyst life, increased catalyst consumption, poor reproducibility, etc., to achieve optimal acceleration Effect of hydrogen process, reduction of Pt content, and improvement of service life
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Embodiment 1
[0020] (1) Preparation of nano-molybdenum disulfide: add ammonium tetrathiomolybdate with a concentration of 0.05mol / l to the solvent diethyl ether, stir evenly, then add an appropriate amount of reducing agent hydrazine hydrate, stir evenly, and configure the initial reaction mixture And transferred in the autoclave;
[0021] (2) Zn(NO 3 ) 2 and Al(NO 3 ) 3 Dissolved in water, configured as a mixed solution with a total metal particle concentration of 0.6mol / L, keeping Zn 2+ :Al 3+ The molar ratio is 2:1, drop a certain amount of alkaline solution in a constant temperature 70-80 ° C water bath, adjust the pH = 11, react for 2 hours, and age for 12 hours. During the process, a hydrotalcite-like precipitate with a layered structure is formed. , the precipitate was separated, washed three times with deionized water, and then dried at 60°C for 5 hours. Then dissolve the LDHS material in the solvent ethylene glycol, add ionic liquid 1-methyl-3-carboxyethylimidazolium tetrafl...
Embodiment 2
[0024] (1) Synthesis of nano-molybdenum disulfide by solvent method: add 0.8mol / l ammonium tetrathiomolybdate to the solvent DMF, stir evenly, then add an appropriate amount of reducing agent hydrazine hydrate, stir evenly, configure the initial reaction mixture and transfer to In a high-pressure synthesis kettle.
[0025] (2) Zn(NO 3 ) 2 and Al(NO 3 ) 3 Dissolved in water, configured as a mixed solution with a total metal particle concentration of 0.5-1mol / L, keeping Zn 2+ :Al 3+The molar ratio is 2:1, drop a certain amount of alkaline solution in a water bath with a constant temperature of 80°C, adjust the pH to 11, react for 2 hours, and age for 12 hours. Separate, wash with deionized water 2 to 3 times, and then dry at 80°C for 5 hours. Then dissolve the LDHS material in the solvent ethylene glycol, add ionic liquid or 1-ethyl-3-methylimidazolium tetrafluoroborate, stir ultrasonically for 10 minutes and then reflux at 50°C for 10h, wash after the reaction, 60°C Let ...
Embodiment 3
[0028] (1) Synthesis of nano-molybdenum disulfide by solvent method: add 0.1mol / l ammonium tetrathiomolybdate to the solvent diethyl ether, stir well, then add an appropriate amount of reducing agent hydrazine hydrate, stir well, configure the initial reaction mixture and Transfer to high pressure synthesis kettle.
[0029] (2) Functionalization of LDHS with ionic liquids: Zn(NO 3 ) 2 and Al(NO 3 ) 3 Dissolved in water, configured as a mixed solution with a total metal particle concentration of 0.5-1mol / L, keeping Zn 2+ :Al 3+ The molar ratio is 2:1, drop a certain amount of alkaline solution in a water bath with a constant temperature of 70°C, adjust the pH to 12, react for 2 hours, and age for 12 hours. During this process, a layered structure of hydrotalcite-like precipitation is formed. Separate, wash with deionized water 2-3 times, and then dry at 60°C for 8 hours. Then dissolve the LDHS material in the solvent ethylene glycol, add ionic liquid, stir ultrasonically ...
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