Catalyst with hydrogenation catalysis effect, preparation method and application of catalyst and hydroisomerization method
A technology of catalysts and additives, applied in the field of catalysts and their preparation, can solve the problem that the hydrogenation catalytic activity of the catalyst needs to be further improved, and achieve the effect of high catalytic activity
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[0026] In the catalyst obtained by the preparation method of the present invention, the content of the metal element of Group VIB, the metal element of Group VIII and the element as auxiliary agent can be appropriately selected according to the specific application of the catalyst. Generally, the amount of the Group VIB metal element, the Group VIII metal element and the element as an auxiliary agent is introduced on the shaped porous support such that, based on the total amount of the catalyst, the shaped porous support is The content of the porous support can be 30-88.5% by weight, preferably 43-88.5% by weight, more preferably 52-85% by weight; in terms of oxides, the content of Group VIB metal elements can be 10-50% by weight, It is preferably 10-45 wt %, more preferably 12-40 wt %; in terms of oxides, the content of Group VIII metal elements may be 1-10 wt %, preferably 1-7 wt %, more preferably 2- 5% by weight; based on the element, the content of the element as an auxil...
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[0085] Preparation Example 1
[0086] (1) Synthesize SAPO-11 molecular sieve with reference to the method of Example 16 in US4440871. The specific steps are:
[0087] Mix 144.0g of pseudo-boehmite (commercially available from the catalyst factory of Sinopec Changling Refinery and Chemical Company, the dry basis content is 71% by weight) and 440.0g of distilled water, then add 230.6g of phosphoric acid (85% by weight), stir well, The mixture P1 is obtained.
[0088] Mix 649.2 g of an aqueous solution of hydroxytetra-n-butylamine with a concentration of 40 wt % and 26.0 g of fumed silica gel (silicon oxide content of 92.8 wt % and water content of 7.2 wt %) to obtain a mixture P2.
[0089]The mixtures P1 and P2 were mixed uniformly, and 102.0 g of di-n-propylamine was added with stirring to obtain a reaction mixture. The reaction mixture was put into a polytetrafluoroethylene-sealed reaction kettle, crystallized at 200 ° C for 24 hours, filtered and washed to neutrality, and ...
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[0091] Preparation Example 2
[0092] 75 grams of ZSM-5 molecular sieve (commercially purchased from Sinopec Changling Refinery Company Catalyst Factory, SiO 2 / Al 2 O 3 The molar ratio is 50, the dry basis content is 80% by weight), 1125 grams (on dry basis) pseudo-boehmite (commercially available from Shandong Aluminum Factory under the trade name of SD powder, and the dry basis content is 69% by weight), 1000 grams of silica sol (commercially available from Qingdao Ocean Chemical Factory, with a silica content of 30% by weight) and 45 grams of succulent powder were mixed uniformly, and extruded into a clover-shaped strip with a circumscribed circle diameter of 1.6 mm. Drying at 120°C for 3 hours, and calcining at 550°C for 3 hours, the porous carrier S2 was obtained, wherein, based on the total amount of the porous carrier, the content of the mesoporous molecular sieve was 5.0% by weight, and the content of silicon oxide was 5.0% by weight. was 20.0 wt %, and the content...
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