Catalyst for acrolein and olefin production through selective oxidation of propane, preparation and applications thereof
A technology for selective oxidation and acrolein, applied in physical/chemical process catalysts, molecular sieve catalysts, carbon-based compound preparation, etc., can solve the problems of low conversion rate, no production significance, low propane conversion activity and conversion rate, etc. The effect of improving quality
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0085] This example provides six kinds of Mo-KIT-6 synthesized under different Mo and Si molar ratio conditions, which are prepared according to the following steps:
[0086] Dissolve 2g of the triblock copolymer P123 template in 19g of hydrochloric acid with a molar concentration of 2.0mol / L and stir magnetically in a constant temperature water bath at 35°C for 4 hours to completely dissolve the triblock copolymer P123 template. Phase solution to obtain a triblock copolymer P123 template solution; using the same operating conditions to prepare six homogeneous triblock copolymer P123 template solutions;
[0087] Weigh 0.006g, 0.055g, 0.163g, 0.272g, 0.435g, and 0.544g of ammonium molybdate, mix them with 57g of distilled water, and stir magnetically in a constant temperature water bath at 35°C to form a uniform solution to obtain six portions Ammonium molybdate solution.
[0088] Mix six parts of homogeneous triblock copolymer P123 template agent solution with corresponding six part...
Embodiment 2
[0096] This example provides three catalysts (K / Mo-KIT-6 catalyst) for selective oxidation of propane synthesized under conditions of different Mo and Si molar ratios to acrolein and olefins. The preparation method includes the following steps:
[0097] The preparation method of Mo-KIT-6 molecular sieve is exactly the same as that of Example 1; the molar ratio of Mo and Si mentioned above are 0.1:100, 1:100, 8:100, respectively;
[0098] Weigh 0.0765g of potassium nitrate, add 50g of de-distilled water, and stir until completely dissolved to obtain a potassium nitrate solution;
[0099] Weigh 2g of Mo-KIT-6 molecular sieves with different Mo doping amounts prepared in Example 1 (select Mo and Si molecular sieves with a molar ratio of 0.1:100, 1:100, 8:100), and add 2.2 mg of the above potassium nitrate solution (due to the low concentration of potassium nitrate solution, it is considered that its density is similar to that of water), continuously and rapidly stirring during the dripp...
Embodiment 3
[0107] This example provides three catalysts for selective oxidation of propane to acrolein and olefins synthesized under the conditions of different K and Si molar ratios (K / Mo-KIT-6 catalyst). The difference from Example 2 is only nitric acid The concentration of potassium solution is different, its preparation method includes the following steps:
[0108] Weigh 0.0382g, 0.1912g, 0.3814g of potassium nitrate respectively, add 50g of de-distilled water to each, stir until completely dissolved to obtain three potassium nitrate solutions of different concentrations;
[0109] Weigh three equal parts of 2g of the Mo-KIT-6 molecular sieve prepared in Example 1 (select the catalyst with the molar ratio of Mo to Si of 0.1:100), and add 2.2mg of the above potassium nitrate solution to each of them. Stir continuously in the medium; after stirring, perform 30min ultrasonic vibration treatment, and then put it in a vacuum drying oven for 4h at room temperature, the vacuum degree of the vacuu...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More