A nickel-based supported catalyst and its preparation method and application
A supported catalyst and catalyst technology, applied in the direction of molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of low thermal stability and inability to meet the chemical reaction process, etc., to achieve increased possibility and high C9+ The effect of high component content and catalytic performance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0032] The preparation of catalyst of the present invention comprises the following steps:
[0033] 1) Add triblock copolymer EO to deionized water at room temperature 20 PO 70 EO 20 (P123) Dissolve P123 completely under vigorous stirring; among them, deionized water and triblock copolymer EO 20 PO 70 EO 20 The molar ratio range is 10000-17000:1;
[0034] 2) Add aluminum salt to the clarified solution obtained by stirring and dissolving, and stir again to dissolve;
[0035] 3) Add tetraethyl orthosilicate to the above clarified solution with aluminum salt, stir at room temperature for 10-15 hours, triblock copolymer EO 20 PO 70 EO 20 The molar ratio range to tetraethyl orthosilicate is 0.0075-0.015:1;
[0036] 4) Place the obtained mixture in a constant temperature water bath at 30-40°C and stir for 18-24 hours;
[0037] 5) Transfer the resulting mixture into a stainless steel synthesis kettle lined with polytetrafluoroethylene, and statically treat it at 80-110°C fo...
Embodiment 1
[0044] Al-SBA-15 support preparation: Add triblock copolymer EO to 80 mL deionized water at room temperature 20 PO 70 EO 20 (P123 polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer) 1.5 g, vigorously stirred until triblock copolymer EO 20 PO 70 EO 20 Dissolve completely; add 0.35 g of aluminum nitrate nonahydrate and stir until dissolved; add 7.4 ml of tetraethyl orthosilicate to the above solution and stir; keep the above mixture at 40°C for 15 hours; In the stainless steel hydrothermal reactor with vinyl fluoride jacket, react under 90°C hydrothermal conditions for 2 days, filter and wash with deionized water and dry at 80°C for 10 hours; then in a muffle furnace at 3°C / The heating rate of min was raised to 120 ° C, kept for 1 hour, and then continued to be heated to 550 ° C at a heating rate of 3 ° C / min, kept for 5 hours, to obtain Al-SBA-15 white powder.
[0045] The preparation of catalyst, 2 grams of above-mentioned gained Al-SBA-15 is ...
Embodiment 2
[0048] The difference from Example 1 is that in the preparation of the Al-SBA-15 carrier, 0.62 grams of aluminum sulfate octadecahydrate is used to replace aluminum nitrate nonahydrate, and other conditions remain unchanged; the hydrogen reduction temperature is set to 450 ° C in the preparation of the catalyst , other conditions unchanged (see figure 2 ).
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More