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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

Active Publication Date: 2014-03-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the research process, it was found that the hydrogenation catalytic activity of the catalyst prepared by this method still needs to be further improved.

Method used

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  • Catalyst with hydrogenation catalysis effect, preparation method and application of catalyst and hydroisomerization method
  • Catalyst with hydrogenation catalysis effect, preparation method and application of catalyst and hydroisomerization method
  • Catalyst with hydrogenation catalysis effect, preparation method and application of catalyst and hydroisomerization method

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preparation example Construction

[0026] In the catalyst obtained according to the preparation method of the present invention, the contents of the metal elements of Group VIB, metal elements of Group VIII and elements used as promoters can be properly selected according to the specific application of the catalyst. Generally, the introduction amount of the Group VIB metal element, the Group VIII metal element and the element as an auxiliary agent on the shaped porous carrier is such that, based on the total amount of the catalyst, the shaped The content of the porous carrier 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% by weight, more preferably 12-40% by weight; in terms of oxides, the content of Group VIII metal elements can be 1-10% by weight, preferably 1-7% by weight, more preferably 2- 5% by weight; based on the element, the content of the element as ...

preparation example 1

[0086] (1) Synthesize SAPO-11 molecular sieve according to the method of Example 16 in US4440871. The specific steps are:

[0087] Mix 144.0g of pseudo-boehmite (commercially purchased from the Catalyst Plant of Sinopec Changling Refining and Chemical Company, with a dry basis content of 71% by weight) and 440.0g of distilled water, then add 230.6g of phosphoric acid (85% by weight), and stir evenly. Mixture P1 is obtained.

[0088] 649.2 g of a 40% by weight aqueous solution of hydroxytetra-n-butylamine and 26.0 g of fumed silica gel (with a silicon oxide content of 92.8% by weight and a water content of 7.2% by weight) were evenly mixed to obtain a mixture P2.

[0089]The mixtures P1 and P2 were uniformly mixed, and 102.0 g of di-n-propylamine was added with stirring to obtain a reaction mixture. Put the reaction mixture into a polytetrafluoroethylene-sealed reaction kettle, crystallize at 200°C for 24 hours, filter and wash the solid product to neutrality, and dry the sol...

preparation example 2

[0092] 75 grams of ZSM-5 molecular sieves (commercially purchased from Catalyst Plant of Sinopec Changling Refining and Chemical Company, SiO 2 / Al 2 o 3 The molar ratio is 50, and the dry basis content is 80% by weight), 1125 grams (on a dry basis) of pseudoboehmite (commercially purchased from Shandong Aluminum Factory, the trade name is SD powder, and the dry basis content is 69% by weight), 1000 grams of silica sol (commercially purchased from Qingdao Ocean Chemical Factory, with a silicon dioxide content of 30% by weight) and 45 grams of scallop powder were mixed evenly, extruded into clover-shaped strips with a circumscribed circle diameter of 1.6 mm, and the extruded molding Dry at 120°C for 3 hours, and bake at a temperature of 550°C for 3 hours to prepare a porous carrier S2, wherein, based on the total amount of the porous carrier, the content of mesoporous molecular sieves is 5.0% by weight, and the content of silicon oxide The content of alumina is 20.0% by weigh...

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Abstract

The invention provides a catalyst with a hydrogenation catalysis effect as well as a preparation method and application of the catalyst. The preparation method comprises the steps of dipping a formed porous support by using a water solution, wherein the water solution contains at least one compound containing VIII family metal elements, at least one compound containing VIB family metal elements and a cosolvent or not; carrying out hydrothermal treatment on a mixture in a sealed reactor at the pressure of P0+delta P, wherein the mixture is obtained through dipping, P0 is pressure generated in the hydrothermal treatment by the formed porous support, the compound containing the VIII family metal elements, the compound containing the VIB family metal elements, the cosolvent or not and water in the water solution, and delta P is 0.05-15MPa; carrying out solid-liquid separation on the mixture, and drying the obtained solid phase, wherein the mixture is obtained through the hydrothermal treatment. The invention also provides a hydroisomerization method. The catalyst provided by the invention has higher catalytic activity in hydroisomerization of hydrocarbon oil.

Description

technical field [0001] The invention relates to a catalyst with hydrogenation catalysis, its preparation method and application, and also relates to a hydroisomerization method. Background technique [0002] With the increasingly stringent environmental protection requirements worldwide, countries have increasingly stringent requirements on the quality of vehicle fuel. In addition, due to the reduction of oil resources, the nature of crude oil has become heavier and worse, and refineries have to process lower-quality crude oil. Therefore, greatly reducing the content of impurities and polycyclic aromatic hydrocarbons in diesel oil and significantly improving the quality of diesel oil has become an urgent problem for oil refining companies to solve. Hydrogenation technology is one of the main technologies to reduce the impurity content in oil and improve the quality of oil, and its core is hydrogenation catalyst. [0003] Therefore, the development of catalysts with higher ...

Claims

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Application Information

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IPC IPC(8): B01J29/85B01J29/48B01J29/78C10G45/64
Inventor 张乐龙湘云聂红李明丰刘清河杨清河刘学芬李大东蒋东红
Owner CHINA PETROLEUM & CHEM CORP
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