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Method for utilizing waste hydro-treatment catalyst

A technology for hydrotreating and spent catalysts, applied in physical/chemical process catalysts, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve problems such as pollution, promote dispersion and save costs , the effect of improving resource utilization

Active Publication Date: 2014-05-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method utilizes waste hydrotreating catalysts to prepare propane partial oxidation to acrolein catalysts and hydrotreating catalysts. This method not only utilizes Mo, Co, Ni and alumina supports in waste hydrotreating catalysts, but also makes full use of waste hydrogenation Treating Ni and V deposited on the catalyst solves the pollution problem of spent catalysts, saves resources and improves efficiency, and is technically easy to implement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Preparation of the catalyst, the steps are as follows:

[0037] Selection of waste hydrodesulfurization MoCo / Al in fixed bed residual oil hydrogenation industrial unit 2 o 3 Catalyst, after extracting to remove the oil on the surface of the catalyst, drying and roasting to obtain the treated waste HDS catalyst (containing Mo: 12.7 wt%, Co: 2.2 wt%, V: 2.4 wt%, Ni: 1.7 wt%, Fe : 0.15 wt%, Al 2 o 3 : 71.6 wt%), grind the catalyst to 200 mesh (referring to passing through a 200 mesh sieve), weigh 100 g of the powder, add 200 mL of ammonia water with a concentration of 25 wt%, stir and soak at 60 °C for 6 h, and filter to obtain the filtrate A and solid insoluble matter B, solid insoluble matter B was added to 250 mL of 98 wt% concentrated sulfuric acid, stirred at a constant temperature at 50 °C until the solid was almost completely dissolved, and filtrate C was obtained by filtration. Add 6.89 g of telluric acid to filtrate A, stir and dissolve to obtain solution ...

Embodiment 2

[0047] In Example 1, the concentrated sulfuric acid was changed to 300 mL of a mixed solution of 98 wt% concentrated sulfuric acid and 65 wt% nitric acid, the volume ratio was 2:1, the carrier silica was changed to 156 g, and aluminum nitrate 235 was added to the filtrate C g, other with embodiment 1, make propane oxidation catalyst MoVTe / SiO 2 and hydrotreating catalyst MoCoNi / Al 2 o 3 . Catalyst MoVTe / SiO in Propane Oxidation 2 Among them, based on the weight of the catalyst, MoO 3 The content is 10.3%, V 2 o 5 The content is 2.3%, TeO 3 The content is 2.9%, SiO 2 The content is 84.5%. In hydrotreating catalyst MoCoNi / Al 2 o 3 Among them, based on the weight of the catalyst, MoO 3 The content of CoO is 15%, the content of CoO is 2.2%, the content of NiO is 1.7%, Al 2 o 3 The content is 81.1%. The physical and chemical properties of the catalysts are listed in Table 1.

[0048] The evaluation of the catalyst is the same as in Example 1, and the evaluation resul...

Embodiment 3

[0050] Waste Hydrodesulfurization MoCoNi / Al in Fixed Bed Residue Hydrogenation Industrial Unit 2 o 3 Catalyst (containing Mo: 15.6 wt%, Co: 1.6 wt%, V: 1.7 wt%, Ni: 2.3 wt%, Fe: 0.21 wt%, Al 2 o 3 : 68.5 wt%), the catalyst was ground to 200 mesh (referring to passing through a 200 mesh sieve), weighed 100 g of the powder, added 200 mL of ammonia water with a concentration of 25 wt%, stirred and soaked at 60 °C for 6 h, and filtered to obtain the filtrate A and solid insoluble matter B, add solid insoluble matter B to 350 mL of a mixed solution of 98 wt% concentrated sulfuric acid and 65 wt% concentrated nitric acid, the volume ratio is 1:1, and stir at a constant temperature at 50 °C until the solid is almost completely dissolved, Filtrate C was obtained by filtration. Add 1.75 g of ammonium metavanadate and 8.45 g of telluric acid to filtrate A, stir and dissolve to obtain solution D, add 30.9 g of ammonium heptamolybdate to filtrate C, stir and dissolve to obtain solution...

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PUM

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Abstract

The invention discloses a method for utilizing waste hydro-treatment catalyst. The method utilizes waste hydro-treatment catalysts which have been used in partial oxidation of propane to prepare acrolein and hydro-treatment, recycles the Mo, Co, Ni, and alumina carriers in waste hydro-treatment catalysts, also fully recycles Ni and V which are deposited on the waste hydro-treatment catalysts, thus solves the pollution problem caused by waste catalysts, saves the resources, increases the economic profit, and is easy to carry out in technology.

Description

technical field [0001] The present invention relates to a utilization method of waste hydrogenation treatment catalyst, that is, a method for preparing oxidation catalyst and hydrogenation catalyst from waste hydrogenation treatment catalyst, especially the preparation of propane partial oxidation to acrolein catalyst and hydrogenation process from waste hydrogenation treatment catalyst Methods of Handling Catalysts. Background technique [0002] Every year, a large amount of spent catalysts that cannot be regenerated are produced all over the world, and hydrogenation catalysts account for a considerable proportion. Enterprises generally discard these spent catalysts or use them as fillers in construction and other industries, but there is a big problem: hydrogenation catalysts generally contain molybdenum, tungsten, cobalt, nickel, etc. Valuable metal oxides, such treatment will cause waste of resources; and the loss of metals will cause certain pollution to the environmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/057B01J23/883C07C47/22C07C45/33C10G45/08
Inventor 金浩孙素华朱慧红刘杰杨光
Owner CHINA PETROLEUM & CHEM CORP
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