Olefin disproportionation method
A technology for the disproportionation of olefins and propylene, applied in chemical instruments and methods, catalysts, organic chemistry, etc., can solve the problems of single product structure, inflexible disproportionation technology, failure to produce ethylene, etc., to slow down the coking process, suppress side reactions, The effect of prolonged stability
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Embodiment 1
[0036] Weigh 50 grams of commercial MgO, add 500 grams of deionized water, heat and stir in a water bath at 90°C for 2 hours, filter the water in the solution with suction, dry the product at 80°C for 15 hours, and roast at 450°C for 8 hours to obtain the finished isomerization catalyst .
[0037] will load tungsten oxide 10% SiO 2 Roast at 450°C for 8 hours, mix with isomerization catalyst at 1:6 (mass ratio), install in a Φ25mm fixed bed reactor, use propylene as raw material, and use propylene at a weight space velocity of 10 hours -1 , the reaction temperature was 300°C, and the reaction pressure was 3MPa to evaluate the performance of the catalyst. The results are shown in Table 1.
Embodiment 2
[0039] Weigh 50 grams of commercial MgO, add 500 grams of deionized water, heat and stir in a water bath at 90°C for 2 hours, filter the water in the solution with suction, dry the product at 80°C for 15 hours, and roast at 450°C for 8 hours to obtain the finished isomerization catalyst .
[0040] will load tungsten oxide 15% SiO 2 Roast at 450°C for 8 hours, mix with isomerization catalyst at 1:6 (mass ratio), install in a Φ25mm fixed bed reactor, use propylene as raw material, and use propylene at a weight space velocity of 10 hours -1 , the reaction temperature was 300°C, and the reaction pressure was 3MPa to evaluate the performance of the catalyst. The results are shown in Table 1.
Embodiment 3
[0042] Weigh 50 grams of commercial MgO, add 500 grams of deionized water, heat and stir in a water bath at 90°C for 2 hours, filter the water in the solution with suction, dry the product at 80°C for 15 hours, and roast at 450°C for 8 hours to obtain the finished isomerization catalyst .
[0043] The loaded tungsten oxide 5% SiO 2 Roast at 450°C for 8 hours, mix with isomerization catalyst at 1:6 (mass ratio), install in a Φ25mm fixed bed reactor, use propylene as raw material, and use propylene at a weight space velocity of 10 hours -1 , the reaction temperature was 300°C, and the reaction pressure was 3MPa to evaluate the performance of the catalyst. The results are shown in Table 1.
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