Cyclohexyl benzene catalyst and preparation method therefor
A cyclohexylbenzene and catalyst technology, applied in molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of high content of dicyclohexylbenzene, increased energy consumption, material consumption of process units, etc.
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Embodiment 1
[0037] 1. Catalyst preparation
[0038] Weigh out 1.87gPdCl 2 Be dissolved in 1mol / L hydrochloric acid aqueous solution and be made into 80g solution I; Take by weighing 100g diameter and be the non-binding spherical hydrogen type BEA zeolite molecular sieve of 1mm (the mol ratio of silicon dioxide / alumina is 45); Solution I is loaded on On the hydrogen-type BEA zeolite molecular sieve, impregnate at room temperature for 12 hours, dry at 100°C for 12 hours, and roast at 450°C for 4 hours to prepare the desired catalyst.
[0039] 2. Catalyst evaluation
[0040] Get 10ml catalyst packing in the fixed-bed reactor, carry out activity evaluation after reduction activation, condition is as follows: the temperature of reaction is 140 ℃, and the molar ratio of benzene and hydrogen in the reaction raw material is 1, and the pressure of reaction is 2.0MPa (gauge pressure) , the weight space velocity of the raw material benzene for the reaction is 1.0h -1 .
[0041] For the convenien...
Embodiment 2
[0055] 1. Catalyst preparation
[0056] Weigh 0.83gPdCl 2 Dissolve in 1mol / L hydrochloric acid aqueous solution and be made into 40g solution I; Take 2.89gFe(NO 3 ) 3 ·6H 2 O was dissolved in water to make 40g solution II; then solution I and solution II were mixed evenly; weighed 100g of binder-free spherical hydrogen-type BEA zeolite molecular sieve with a diameter of 2mm (the molar ratio of silica / alumina was 45) , load the mixed solution on the hydrogen-type BEA zeolite molecular sieve, impregnate at room temperature for 12 hours, dry at 100°C for 12 hours, and calcinate at 450°C for 4 hours to prepare the desired catalyst.
[0057] 2. Catalyst evaluation
[0058] Catalyst evaluation method see embodiment 1.
[0059] For the convenience of comparison, the composition of the catalyst is listed in Table 1, and the evaluation results are listed in Table 2.
Embodiment 3
[0061] 1. Catalyst preparation
[0062] Weigh 0.83gPdCl 2 Dissolve in 1mol / L hydrochloric acid aqueous solution and be made into 40g solution I; Take 1.98g Co(NO 3 ) 3 ·6H 2 O was dissolved in water to make 40g solution II; then solution I and solution II were mixed evenly; weighed 100g of binder-free spherical hydrogen-type BEA zeolite molecular sieve with a diameter of 2mm (the molar ratio of silica / alumina was 45) ; The mixed solution is loaded on the hydrogen-type BEA zeolite molecular sieve, impregnated at room temperature for 12 hours, dried at 100°C for 12 hours, and calcined at 450°C for 4 hours to prepare the desired catalyst.
[0063] 2. Catalyst evaluation
[0064] Catalyst evaluation method see embodiment 1.
[0065] For the convenience of comparison, the composition of the catalyst is listed in Table 1, and the evaluation results are listed in Table 2.
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