Compound dual-functional catalyst for hydrogenation and esterification reaction of furfural acetic acid and preparation method thereof
A dual-functional catalyst and hydroesterification technology, which is applied in the direction of physical/chemical process catalysts, molecular sieve catalysts, chemical instruments and methods, etc., can solve the problems of poor ester selectivity, difficult to handle, and difficult to handle, etc., to improve the selectivity of esters , Improve combustion performance, improve the effect of conversion rate
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Embodiment 1
[0028] Add 9.00g TEOS (silicon source, ethyl tetrasilicate) and 0.0294g AIP (aluminum source, aluminum isopropoxide) to 60.0mL HCl solution with pH 1.5, stir the mixture at room temperature for 4h, then add another solution , this solution is a 100.0mL hydrochloric acid solution containing 4.00g template agent P123 (amphiphilic tri-block copolymer) with a pH of 1.5, and the resulting solution is stirred at 40°C for 24h, then aged at 110°C for 24h, and deionized water Filter, wash, and dry overnight, then raise the temperature from room temperature to 500°C at a rate of 2°C / min in a muffle furnace, and keep at 500°C for 6h. After cooling to room temperature, AlSBA-15 (300) was finally obtained.
[0029] Impregnate 2.00 g of AlSBA-15(300) with 5.1 mL of 0.02064 g palladium / mL solution at room temperature for 24 h, then dry in an oven at 110 °C for 8 h, and raise the temperature from room temperature to 500 °C at a rate of 5 °C / min in a muffle furnace , kept at 500°C for 4h, aft...
Embodiment 2
[0033] The catalyst was prepared according to the method in Example 1 to obtain a 5% Pd / AlSBA-15 (300) catalyst. Four sets of reactions were performed at reaction temperatures of 50° C., 80° C., 150° C., and 200° C., and the activity evaluation conditions were the same as in Example 1 except for the reaction temperature conditions. The results are shown in Table 1.
Embodiment 3
[0035] The catalyst was prepared according to the method in Example 1 to obtain a 5% Pd / AlSBA-15 (300) catalyst. respectively in H 2 Under the condition of initial pressure of 5.0atm, 20.0atm and 30.0atm, do three sets of reactions, except H 2 The activity evaluation conditions other than the initial pressure conditions were the same as in Example 1. The results are shown in Table 2.
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