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Lamella catalyst for preparing petroleum naphtha and diesel oil, preparation method and application thereof

A catalyst and naphtha technology, applied in the field of shell catalysts, can solve the problems of falling off of active component powder and reducing the utilization efficiency of active components, and achieve the effects of uniform shell layer, easy control of preparation process and good repeatability

Active Publication Date: 2008-12-10
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, compared with the eggshell catalyst prepared from the solution of the active component, this method of preparing the active component powder reduces the utilization efficiency of the active component on the one hand, and the active component is washed away by the air flow during use. The powder is also easier to fall off from the surface of the inert solid particles

Method used

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  • Lamella catalyst for preparing petroleum naphtha and diesel oil, preparation method and application thereof

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preparation example Construction

[0043]According to the method for preparing a catalyst provided by the present invention, the catalytically active component can be any element and its compound known to have catalytic activity. The additive component can be any element and its compound known to have a promoting effect on reaction activity, product selectivity or catalyst stability. The supported component contained in the solution used for spraying the carrier may be a catalytic active component, or an auxiliary component, or simultaneously include a catalytic active component and an auxiliary component. When two or more loaded components are loaded by the method of spraying, different loaded components may be loaded at the same time, or not at the same time. When the catalytic active component and the auxiliary component are not loaded at the same time, the auxiliary component can be loaded first, and then the catalytic active component, or the catalytic active component can be loaded first, and then the aux...

Embodiment 1

[0061] The supporting components of catalyst A are Co and Zr, and the activated carbon AC1 (AC represents activated carbon, 1 is the type of activated carbon, 1 is apricot kernel charcoal, and 2 is coconut shell charcoal) is used as the carrier, and the particle size is 1.5-2.5mm. 15Co2Zr / AC1 catalyst is prepared according to the following steps:

[0062]10,000 grams of apricot kernel charcoal carrier is washed three times with boiling deionized water (about 373K), and dried at 393K for 8 hours. Weigh 183.2 grams of zirconyl nitrate and dissolve it in 5000ml deionized water to make a solution and place it in a separatory funnel, weigh 3.00 kilograms of activated carbon and place it in a suction filter bottle, and use a rubber stopper with a suitable small hole in the middle to close the separatory funnel. Seal with the suction filter bottle, first treat the activated carbon under vacuum (0.01Mpa) for half an hour, open the piston on the separatory funnel, quickly flow the abov...

Embodiment 2

[0064] The supporting components of catalyst B are Co and Zr, except that 169.0 grams of zirconyl nitrate and 1646.1 grams of cobalt nitrate are weighed, the preparation method of catalyst B 10Co2Zr / AC1 is the same as that of Example 1.

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Abstract

The invention relates to a shell catalyst used for preparing naphtha and diesel oil, which takes active carbon loaded with 5-35 percent of active component and 0.01-5 percent of auxiliary components by weight as a carrier; wherein, the active component is cobalt and the auxiliary components can be one or a plurality of La, Ce, Zr, Cr, Ti, V, B, Mn, Re, K, Pt, Ru, Mg, Ba and Ca. The preparation method of the catalyst comprises: a) preparing the solution containing soluble compounds of the loaded component; b) spraying the solution prepared in the step a) on the rolling carrier; c) drying or roasting the catalyst prepared in the step b) in inert gases. The invention can easily prepare eggshell type catalyst, which has the advantages of simple operation, uniform shell, easily controlled preparation process and good repeatability, thus being easy for large-scale production. Furthermore, the obtained catalyst has great service effect in overcoming the diffusion control problem in the chemical conversion process.

Description

technical field [0001] The invention relates to a shell catalyst for Fischer-Tropsch (F-T) synthesis of naphtha and diesel. [0002] The present invention also relates to a preparation method of the above-mentioned catalyst. [0003] The invention also relates to the application of the above-mentioned catalyst in producing naphtha and diesel oil from synthesis gas. technical background [0004] Fischer-Tropsch (F-T) synthesis of synthetic gas obtained by gasification of coal, natural gas, or biomass to produce liquid fuels has great economic and practical significance for ensuring my country's energy security and solving environmental pollution problems. The Dalian Institute of Chemical Physics, Chinese Academy of Sciences has developed a cobalt-based catalyst supported by activated carbon to synthesize liquid naphtha (C 5 -C 9 ) and diesel (C 10 -C 20 ) technology, the synthesized product hardly contains solid wax (see Yunjie Ding et al. At present, most of the F-T sy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/75B01J23/83C10G2/00
Inventor 朱何俊丁云杰吕元王涛金明
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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