Catalyst suitable for the production of cyclohexylbenzene
A cyclohexylbenzene and catalyst technology, which is applied in molecular sieve catalysts, physical/chemical process catalysts, bulk chemical production, etc., can solve the problems of high yield of cyclohexylbenzene, low yield of cyclohexylbenzene, and low yield of cyclohexane and other issues to achieve the effect of increasing yield and reducing yield
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Embodiment 1
[0042] 1. Catalyst preparation
[0043] Weigh PdCl containing Pd 1.2g 2 Be dissolved in 1mol / L hydrochloric acid aqueous solution and be made into 80g solution I; Measure 0.1L diameter to be 1mm, length 5mm non-binding cylindrical hydrogen type BEA zeolite molecular sieve (the mol ratio of silicon dioxide / alumina is 40); The solution I was 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.
[0044] 2. Catalyst evaluation
[0045] 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 150 ℃, and the mol ratio of benzene and hydrogen in the reaction raw material is 0.8, and the pressure of reaction is 2.0MPa (gauge pressure) , the liquid volume space velocity of the reacted raw material benzene is 0.5h -1 .
[0046] For ...
Embodiment 2
[0048] 1. Catalyst preparation
[0049] Weigh PdCl containing Pd 0.3g 2 Dissolve in 1mol / L hydrochloric acid aqueous solution and be made into 40g solution I; Weigh the La(NO 3 ) 3 ·6H 2O is dissolved in water and is made into 40g solution II; Measure 0.1L diameter to be 1mm, length 5mm cylindrical hydrogen-type BEA zeolite molecular sieve (the mol ratio of silicon dioxide / aluminum oxide is 40), solution I and The solution II was mixed evenly and then 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.
[0050] 2. Catalyst evaluation
[0051] Catalyst evaluation method see embodiment 1.
[0052] 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
[0054] 1. Catalyst preparation
[0055] Weigh PdCl containing Pd 0.3g 2 Dissolve in 1mol / L hydrochloric acid aqueous solution and be made into 40g solution I; Sm(NO 3 ) 3 ·6H 2 O is dissolved in water and is made into 40g solution II; Measure 0.1L diameter to be 1mm, length 5mm cylindrical hydrogen-type BEA zeolite molecular sieve (the mol ratio of silicon dioxide / aluminum oxide is 40), solution I and The solution II was mixed evenly and then 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.
[0056] 2. Catalyst evaluation
[0057] Catalyst evaluation method see embodiment 1.
[0058] 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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