Production method of propylene oxide
A production method and technology for propylene oxide, applied in the production field of propylene oxide, can solve the problems of shortened life, unsafe production, decreased catalyst activity, etc., and achieve the effects of ensuring safety, good technical effect, and simplifying the subsequent treatment process.
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Embodiment 1
[0018] In a fixed-bed reactor containing 3 catalyst beds, 2 grams each of 6 grams of TS-1 catalyst was filled, propylene was fed from the bottom of the reactor, and the space velocity of propylene to the entire catalyst bed was 3 hours -1 , split out 30% from the top discharge and mix with the solution containing 10 (weight)% hydrogen peroxide at 30 grams / hour, then be divided into three parts and flow into each catalyst bed inlet respectively, the total molar ratio of propylene and hydrogen peroxide is 4.8, clamping The jacket temperature is 50°C, the bed temperature is 54°C, and the reaction pressure is 0.5MPa. The results are shown in Table 1.
[0019] Table 1
[0020]
Embodiment 2
[0022] In a fixed-bed reactor containing 6 catalyst beds, each 2 grams of TS-1 catalyst totaling 12 grams is filled, propylene is fed from the bottom of the reactor, and the space velocity of propylene to the entire catalyst bed is 1.5 hours -1 , split out 50% from the top discharge and mix with the solution containing 10 (weight)% hydrogen peroxide in 40 grams / hour, then be divided into 6 parts and flow into each catalyst bed inlet respectively, the total molar ratio of propylene and hydrogen peroxide is 3.6, clamp The jacket temperature is 50°C, the bed temperature is 52°C, and the reaction pressure is 0.5MPa. The results are shown in Table 2.
[0023] Table 2
[0024]
Embodiment 3
[0026] In a fixed-bed reactor containing 4 catalyst beds, each 2.5 grams of a total of 10 grams of TS-1 catalyst is filled, propylene is fed from the bottom of the reactor, and the space velocity of propylene to the entire catalyst bed is 2 hours -1 , split out 40% from the top discharge and mix with 40 grams / hour solution containing 10 (weight)% hydrogen peroxide, then be equally divided into 4 parts and flow into each catalyst bed inlet respectively, the total molar ratio of propylene and hydrogen peroxide is 4, clamp The jacket temperature is 45°C, the bed temperature is 47°C, and the reaction pressure is 0.99MPa. The results are shown in Table 3.
[0027] table 3
[0028]
PUM
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