Selective hydrogenation method of alkyne in C4 hydrocarbon stream
A technology for selective hydrogenation and C4 hydrocarbons, applied in the purification/separation of hydrocarbons and hydrocarbons, chemical instruments and methods, etc., can solve the problems of complex catalyst composition and cumbersome preparation process, and achieve high selectivity and high reaction performance, energy saving effect
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[0040] Example 1
[0041] Take 13.5ml 10mg / ml PdCl 2 Solution, add 1mol / L NaOH solution dropwise to adjust the pH to 5.6, spray to 100.0g Al 2 O 3 Spherical carrier surface, use 20ml 50%v / v isopropanol aqueous solution to wet the carrier and use it under vacuum 60 The Coγ radiation source was irradiated at room temperature for 15 hours, and the absorbed dose rate was 35 Gy / min. After the irradiation, the sample was placed in an oven and dried at 80° C. and 120° C. for 12 hours to obtain the catalyst A, the appearance of which was gray-black, and the Pd content was 0.135 wt%.
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[0042] Example 2
[0043] Take 30ml 10mg / ml PdCl 2 Solution, sprayed to 100.0g Al modified by La and K 2 O 3 The surface of the tooth spherical carrier is sprayed with 5ml of 1mol / L NaOH solution, and the carrier is wetted with 20ml of 50%v / v isopropanol aqueous solution and used under vacuum 60 The Coγ radiation source was irradiated at room temperature for 15 hours, and the absorbed dose rate was 70 Gy / min. After the irradiation, the sample was placed in an oven and dried at 80° C. and 120° C. for 12 hours to obtain the catalyst B. The appearance of the catalyst B was gray and the Pd content was 0.300 wt%.
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