Catalyst, method of synthesizing the same and method of manufacturing carbon monoxide using the same

Abstract

This invention provides a catalyst, its preparation method, and its application in the production of carbon monoxide. The catalyst contains a specific amount of hydrophobic material, thereby improving the conversion rate and stability of the catalytic reaction and enhancing its resistance to carbon deposition, thus extending its lifespan. Applying this catalyst to the carbon monoxide production method, a high space-time yield of carbon monoxide can be achieved by performing a gas recombination reaction on a reaction gas containing methane, hydrogen, and carbon dioxide under low-temperature conditions.

Claims

1. A catalyst, wherein the catalyst comprises 100 wt% of: 5 wt% to 10 wt% nickel; 1 wt% to 5 wt% copper; 5 wt% to 15 wt% of hexagonal boron nitride (h-BN); and a balance of magnesium aluminum oxide.

2. The catalyst as claimed in claim 1, wherein the magnesium aluminum oxide comprises magnesium oxide and aluminum oxide, and the weight ratio of the magnesium oxide to the aluminum oxide is 1:9 to 5:

5.

3. A method for preparing a catalyst, comprising: A nickel-containing precursor, a copper-containing precursor, hexagonal boron nitride, magnesium aluminum oxide, and a solvent are mixed to obtain a precursor solution, wherein, based on 100 wt% of the precursor solution, the nickel in the nickel-containing precursor is 5 wt% to 10 wt%, the copper in the copper-containing precursor is 1 wt% to 5 wt%, and the hexagonal boron nitride is 5 wt% to 15 wt%; the precursor solution is subjected to a drying step to obtain an intermediate product; and the intermediate product is subjected to a calcination step to obtain the catalyst.

4. The method for preparing the catalyst as claimed in claim 3, wherein the magnesium aluminum oxide comprises magnesium oxide and aluminum oxide, and the weight ratio of the magnesium oxide to the aluminum oxide is 1:9 to 5:

5.

5. A method for producing carbon monoxide, comprising: Provide a catalyst as described in any one of claims 1 and 2; The catalyst was packed into a reaction tube; A mixed gas is introduced into the reaction tube to carry out a reduction reaction on the catalyst, wherein the mixed gas contains hydrogen; and after the reduction reaction, a reaction gas is introduced into the reaction tube to carry out a gas recombination reaction to obtain carbon monoxide, wherein the reaction gas contains methane, hydrogen and carbon dioxide.

6. A method for producing carbon monoxide as claimed in claim 5, wherein the mixed gas is 100 vol%, and the hydrogen is 0.1 vol% to 10 vol%.

7. The method for producing carbon monoxide as described in claim 5, wherein the reaction temperature of the reduction reaction is 400°C to 600°C.

8. The method for producing carbon monoxide as claimed in claim 5, wherein the volume ratio of the methane, the hydrogen and the carbon dioxide in the reaction gas is x:y:(100-xy), and 10<x≤y, 100-xy≥30.

9. A method for producing carbon monoxide as described in claim 5, wherein the reaction temperature of the gas recombination reaction is 200°C to 750°C.

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