Preparation method capable of modifying nickel-based ternary non-supported catalyst by adding aids PEG and SB powder
A catalyst and non-supported technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problems of underdeveloped pore structure, poor mechanical strength, and poor dispersion of catalyst metal active components. Achieve the effects of facilitating industrial production and application, increasing the removal rate, and increasing the desulfurization rate of diesel oil
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Embodiment 1
[0028] According to the metal molar ratio of Ni:Mo:W=2:1:1, 9.954 g of nickel acetate tetrahydrate, 5.071 g of ammonium heptamolybdate, and 3.531 g of ammonium metatungstate were weighed. Pour 5.071 g of ammonium heptamolybdate and 3.531 g of ammonium metatungstate into a three-necked flask with a capacity of 500 ml, and dissolve them completely with 300 ml of deionized water at 50 °C to obtain solution A. Use ammonia water as the precipitant to adjust the pH of solution A to 9, and heat the temperature of solution A to 90 °C in a water bath. Pour nickel acetate tetrahydrate into a beaker and dissolve in 20 ml deionized water to obtain solution B. At the same temperature, slowly change solution B and drop it into solution A, and it can be seen that a precipitate is gradually formed. After the dropwise addition, the solution was stirred at 90 °C for 5 h to fully compound the active components. During the stirring process, 1.856 g of PEG and 1.523 g of SB powder were added to ...
Embodiment 2
[0030] According to the metal molar ratio of Ni:Mo:W=2:1:1, 11.632 g of nickel nitrate hexahydrate, 5.071 g of ammonium heptamolybdate, and 3.531 g of ammonium metatungstate were weighed. Pour the Mo and W compounds into a three-neck flask with a capacity of 500 ml, and completely dissolve them with 300 ml of deionized water at 50°C to obtain solution A. Use ammonia water as the precipitant to adjust the pH of solution A to 9, and heat the temperature of solution A to 90 °C in a water bath. Pour nickel nitrate hexahydrate into a beaker and dissolve in 20 ml deionized water to obtain solution B. At the same temperature, slowly change solution B and drop it into solution A, and it can be seen that a precipitate is gradually formed. After the dropwise addition, the solution was stirred at 90 °C for 5 h to fully compound the active components. During the stirring process, 2.023 g of PEG and 4.047 g of SB powder were added to the solution respectively. After the stirring was comp...
Embodiment 3
[0032]According to the metal molar ratio of Ni:Mo:W=2:1:1, 9.520 g of nickel chloride hexahydrate, 5.071 g of ammonium heptamolybdate, and 3.531 g of ammonium metatungstate were weighed. Pour the Mo and W compounds into a three-neck flask with a capacity of 500 ml, and completely dissolve them with 300 ml of deionized water at 50°C to obtain solution A. Use ammonia water as the precipitant to adjust the pH of solution A to 9, and heat the temperature of solution A to 90°C in a water bath. Pour nickel chloride hexahydrate into a beaker and dissolve in 20 ml deionized water to obtain solution B. Slowly drop solution B into solution A at the same temperature, and it can be seen that a precipitate is gradually formed. After the dropwise addition, the solution was stirred at 90 °C for 5 h to fully compound the active components. During the stirring process, 1.812 g of PEG and 3.624 g of SB powder were added to the solution respectively. After the stirring was completed, the suspe...
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