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High-performance double-core iron-based oxygen carrier particle and preparation method thereof

An oxygen carrier, high-performance technology, applied in the petroleum industry, fuel additives, fuels, etc., to achieve the effect of simple preparation process, strong reproducibility, and improved reaction performance

Active Publication Date: 2015-07-22
HYLOOP TECH (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for iron-based oxygen carriers, the reaction rate with fuel is lower than that of nickel, copper and other oxygen carriers

Method used

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  • High-performance double-core iron-based oxygen carrier particle and preparation method thereof
  • High-performance double-core iron-based oxygen carrier particle and preparation method thereof
  • High-performance double-core iron-based oxygen carrier particle and preparation method thereof

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preparation example Construction

[0025] The preparation method of the present invention mainly includes: in the process of preparing the iron-based oxygen carrier, iron salt is needed, adding corresponding proportions of other active metal salts to the iron salt, mixing evenly, and sintering to obtain the active component after evaporation and drying Oxygen carrier particles containing iron oxide and other active oxides. The active metal oxides are preferably nickel oxide, copper oxide, manganese oxide, cobalt oxide, cerium oxide, and zinc oxide, more preferably nickel oxide, copper oxide, and cobalt oxide. Specifically, the mixing process, the drying process and the sintering process after drying can be understood by those skilled in the art that any feasible equipment and process in the prior art can be used.

[0026] As a preference, the present invention provides a 2 o 3 The oxygen carrier preparation method as an inert carrier, during preparation, aluminum isopropoxide is used as the reaction raw mater...

Embodiment 1

[0034] Take 56.7g of aluminum isopropoxide, add aluminum isopropoxide into 500ml of water, and start hydrolysis at 90°C. After hydrolysis for a period of time, the isopropanol generated by the hydrolysis is volatilized in the open. Then add nitric acid solution, and after being fully hydrolyzed, volatilize the isopropanol generated by hydrolysis in the open. Take 162gFe(NO 3 ) 3 *9H 2 O, 3.86gNi(NO 3 ) 2 *6H 2 O was dissolved in an appropriate amount of deionized water. After the aluminum isopropoxide is fully hydrolyzed, Fe(NO 3 ) 3 and Ni(NO 3 ) 2 Slowly add the mixed solution, mix well, and keep at 90°C for 30min. The samples were dried in an oven and calcined at programmed temperature. The final calcination temperature is 1000°C to obtain the required oxygen carrier. The oxygen carrier is Al 2 o 3 As an inert carrier, Fe 2 o 3 and NiO are the active components, where NiO accounts for 3% of the active component and 2.1% of the total weight of the oxygen car...

Embodiment 2

[0036] Take 56.7g of aluminum isopropoxide, add aluminum isopropoxide into 500ml of water, and start hydrolysis at 90°C. After hydrolysis for a period of time, the isopropanol generated by the hydrolysis is volatilized in the open. Then add nitric acid solution, and after being fully hydrolyzed, volatilize the isopropanol generated by hydrolysis in the open. Take 162gFe(NO 3 ) 3 *9H 2 O, 3.01gCu(NO 3 ) 2 *3H 2 O was dissolved in an appropriate amount of deionized water. After the aluminum isopropoxide is fully hydrolyzed, Fe(NO 3 ) 3and Cu(NO 3 ) 2 Slowly add the mixed solution, mix well, and keep at 90°C for 30min. The samples were dried in an oven and calcined at programmed temperature. The final calcination temperature is 1000°C to obtain the required oxygen carrier. The oxygen carrier is Al 2 o 3 As an inert carrier, Fe 2 o 3 and CuO are the active components, where CuO accounts for 3% of the active component and 2.1% of the total weight of the oxygen carr...

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Abstract

The invention provides a high-performance double-core iron-based oxygen carrier particle and a preparation method thereof. An oxygen carrier is an inert-component loaded active metal oxide, and the metal oxide comprises two active metal oxides as active components, wherein one of the active metal oxides is iron oxide. The high-performance double-core iron-based oxygen carrier particle has the advantages of simple preparation technology, the prepared double-core iron-based oxygen carrier particle has greatly improved performances compared with a mono-core iron-based oxygen carrier, and high conversion rates of raw materials in chemical chain combustion technology can be realized.

Description

technical field [0001] The invention belongs to the technical field of preparation of oxygen carrier particles in a chemical looping combustion system, and in particular relates to a method for preparing oxygen carrier particles using metal oxides as oxygen carriers, which is suitable for chemical looping combustion technology. Background technique [0002] Chemical looping combustion technology is a new type of flameless combustion technology. The advantage of this technology is that during the combustion of fuel, oxygen atoms are transferred from oxygen to fuel by the oxygen carrier. When using carbon-containing fuel, the product is only CO 2 and H 2 O, CO can be achieved with low energy consumption by simple condensation 2 emission reduction, and at the same time completely eradicate all kinds of NO x generation. In addition, since the oxygen carrier circulates between the reactors, heat transfer is realized, which effectively improves the efficiency of the chemical l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L10/00
Inventor 王伟王首都祝捷胡月
Owner HYLOOP TECH (BEIJING) CO LTD
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