Catalyst for producing cyclohexylbenzene
A cyclohexylbenzene and catalyst technology, which is applied in the direction of carbon compound catalysts, catalysts, molecular sieve catalysts, etc., can solve the problems of low yield of cyclohexylbenzene, high yield of cyclohexylbenzene, high yield of cyclohexane, etc., to reduce the yield rate, the effect of increasing yield
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Embodiment 1
[0043] 1. Catalyst preparation
[0044] 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 / aluminum oxide 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.
[0045] 2. Catalyst evaluation
[0046] 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 .
[004...
Embodiment 2
[0049] 1. Catalyst preparation
[0050] Weigh PdCl containing Pd 0.3g 2 Dissolve in 1mol / L hydrochloric acid aqueous solution and be made into 40g solution I; Weigh Eu(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.
[0051] 2. Catalyst evaluation
[0052] Catalyst evaluation method see embodiment 1.
[0053] For the convenience of comparison, the composition and evaluation results of the catalysts are listed in Table 1.
Embodiment 3
[0055] 1. Catalyst preparation
[0056] Weigh PdCl containing Pd 0.3g 2 Dissolve in 1mol / L hydrochloric acid aqueous solution and make 40g solution I; Weigh Dy(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.
[0057] 2. Catalyst evaluation
[0058] Catalyst evaluation method see embodiment 1.
[0059] For the convenience of comparison, the composition and evaluation results of the catalysts are listed in Table 1.
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