Oxygen carrier for preparing syngas from biomass, preparation method and applications thereof

An oxygen carrier and biomass technology, which is applied in the field of biochemical chain production of synthesis gas oxygen carrier preparation, can solve the problems of low concentration of product synthesis gas and low gasification rate, and achieves cheap raw materials, high activity and high yield. high effect

Active Publication Date: 2018-01-05
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems of low gasification rate and low concentration of product synthesis gas in the technology of biomass synthesis gas in the prior art, the present invention intends to provide an oxygen carrier for biomass synthesis gas, which can improve the efficiency of biomass production of synthesis gas. gasification rate, and increase the concentration of product syngas

Method used

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  • Oxygen carrier for preparing syngas from biomass, preparation method and applications thereof

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Embodiment 1

[0041] Take 36.3g Ni(NO 3 ) 2 ·6H 2 O, put it into a 500mL beaker, add 100mL of distilled water, and then place the beaker in a water bath at 80°C with a stirring speed of 400rpm. Take 34.3g La(NO 3 ) 3 ·6H 2 O, put it in a beaker with 100mL distilled water, stir until it is completely dissolved. Then add the lanthanum nitrate solution dropwise into the cobalt nitrate solution, and stir while adding dropwise. Take 40g of citric acid, the molar ratio of citric acid to the total amount of metal ions is 1.2:1, put it into a 100mL beaker and stir until completely dissolved, after stirring the above mixed solution for 30 minutes, slowly add the citric acid solution, dropwise While stirring. After stirring for 5 hours, the reddish-brown solution had been dehydrated and turned into a viscous gel. The gel was taken out and placed in a drying oven at 110° C. to dry overnight. Then take out the dried perovskite precursor, place it in a muffle furnace, raise the temperature from ...

Embodiment 2

[0044] Take 36.3g Ni(NO 3 ) 2 ·6H 2 O, put it into a 500mL beaker, add 100mL of distilled water, and then place the beaker in a water bath at 80°C with a stirring speed of 400rpm. Take 34.3g La(NO 3 ) 3 ·6H 2 O, put it in a beaker with 100mL distilled water, stir until it is completely dissolved. Then add the lanthanum nitrate solution dropwise into the cobalt nitrate solution, and stir while adding dropwise. Take 40g of citric acid, the molar ratio of citric acid to the total amount of metal ions is 1.2:1, put it into a 100mL beaker and stir until completely dissolved, after stirring the above mixed solution for 30 minutes, slowly add the citric acid solution, dropwise While stirring. After stirring for 5 hours, the reddish-brown solution had been dehydrated and turned into a viscous gel. The gel was taken out and placed in a drying oven at 110° C. to dry overnight. Then take out the dried perovskite precursor, place it in a muffle furnace, raise the temperature from ...

Embodiment 3

[0047] Take 36.3g Ni(NO 3 ) 2 ·6H 2 O, put it into a 500mL beaker, add 100mL of distilled water, and then place the beaker in a water bath at 80°C with a stirring speed of 400rpm. Take 34.3g La(NO 3 ) 3 ·6H 2 O, put it in a beaker with 100mL distilled water, stir until it is completely dissolved. Then add the lanthanum nitrate solution dropwise into the cobalt nitrate solution, and stir while adding dropwise. Take 40g of citric acid, the molar ratio of citric acid to the total amount of metal ions is 1.2:1, put it into a 100mL beaker and stir until completely dissolved, after stirring the above mixed solution for 30 minutes, slowly add the citric acid solution, dropwise While stirring. After stirring for 5 hours, the reddish-brown solution had been dehydrated and turned into a viscous gel. The gel was taken out and placed in a drying oven at 110° C. to dry overnight. Then take out the dried perovskite precursor, place it in a muffle furnace, raise the temperature from ...

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Abstract

The present invention discloses an oxygen carrier for preparing syngas from biomass, wherein the oxygen carrier comprises 5-65% of Fe2O3, 5-35% of NiO and 30-90% of LaNiO3, wherein perovskite structure LaNiO3 or a LaNiO3 and NiO mixture with a perovskite structure is prepared through a complexing reaction by using the soluble salt of nickel and lanthanum as a precursor and using citric acid as a complexing agent, and loads an active component and an auxiliary agent through impregnating. According to the present invention, the oxygen carrier can be used for producing syngas by using biomass asthe raw material, has high activity, and can promote the gasification of the tar generated after biomass pyrolysis so as to improve the whole gasification rate of biomass; the syngas can be obtained by using the biomass as the raw material, such that the yield of the syngas is high and can achieve more than 95%; and through the chemical looping cycle reaction, the pure hydrogen gas can be obtainedwithout the gas separation process so as to improve the economy of the biomass-to-hydrogen production technology.

Description

technical field [0001] The invention relates to a new method for preparing an oxygen-carrying body of synthesis gas produced by biomass chemical chain, which belongs to the technology in the field of biomass hydrogen production. Background technique [0002] Syngas (H 2 +CO) is an important chemical "intermediate" with carbon monoxide and hydrogen as the main components. The application and production of is extremely important in the chemical industry. Syngas has a wide range of raw materials. It can be produced by the gasification of solid fuels such as coal or coke, it can also be produced from light hydrocarbons such as natural gas and naphtha, and it can also be produced from heavy oil through partial oxidation. Coal, oil, natural gas, coke oven gas, refinery gas, etc. contain a lot of carbon, so carbon dioxide will be emitted during the production process, which will pollute the environment. Biomass energy resources have low sulfur content, extensive resources, can be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/83C10J3/02C10J3/72
CPCY02P20/52
Inventor 梁皓孙兆松尹泽群刘全杰
Owner CHINA PETROLEUM & CHEM CORP
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