Preparation method of vulcanized catalyst
A catalyst, sulfurized technology, applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problems that affect the hydrogenation activity of catalysts, cannot use hydrogenation devices, and complex process flow, etc. The effect of saving start-up time, improving vulcanization and simple production process
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 The preparation method of the sulfurized catalyst of the present invention prepares the sulfide precursors of Group VIB metal Mo and W and the inorganic salt of Group VIII metal Ni or Co into a solution, adds additives to the impregnation solution, and uses the impregnation method to load it onto the catalyst carrier, and then dried to obtain the final sulfurized catalyst.
 In the preparation process of the sulfurized catalyst of the present invention, the impregnation method is a conventional method in the field, such as dissolving the required metal salt in an aqueous solution with an appropriate pH value, and then impregnating by means of saturated impregnation or excessive impregnation.
 A kind of specific preparation method of sulfurized catalyst of the present invention is as follows:
 1. Preparation of catalyst carrier: Prepare the catalyst carrier by conventional methods, and select the carrier type according to the number of acid sites r...
 The preparation of embodiment 1 sulfurized catalyst A
 Take by weighing pseudo-boehmite (produced by Shandong Aluminum Oxidation Plant, 73% by weight on a dry basis) 900g, 19g of scallop powder, 32g of citric acid, 48ml of nitric acid (30% by weight), silica gel (containing two by weight) Silicon oxide 30%) 159ml, deionized water 250ml mix evenly, extrude into 1.2mm clover strips on extruder, after drying, bake at 600 ℃ for 3 hours, obtain the required catalyst carrier 1.
 Take ammonium thiomolybdate solution (containing molybdenum oxide 30g / 100ml) to impregnate carrier 1 and dry at 180°C, take nickel nitrate solution (containing nickel oxide 5.2g / 100ml) and add glycine in an amount of 2g / 100ml, mix well The obtained catalyst precursor was impregnated and dried at 180° C. for 3 hours to obtain catalyst A. The exothermic results are shown in Table 1.
 The preparation of embodiment 2 sulfurized catalyst B
Take ammonium thiomolybdate solution (containing molybdenum oxide 30g / 100ml) to impregnate carrier 1 and then dry at 180°C, take nickel nitrate solution (containing nickel oxide 5.2g / 100ml) and add acetamide ethanol solution, the amount of acetamide added is 2g / 100ml, mix evenly, impregnate the obtained catalyst precursor, and dry at 180°C for 3 hours to obtain catalyst B. The exothermic results are shown in Table 1.
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