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High-dispersion high-load high-activity nickel-based catalyst for low-temperature methane reforming and application of high-dispersion high-load high-activity nickel-based catalyst for low-temperature methane reforming

A nickel-based catalyst and dispersant technology, applied in the chemical industry, can solve problems such as poor stability, high equipment material requirements, harsh operating conditions, etc., achieve broad industrial utilization prospects and value, reduce enterprise operating costs, and realize resource utilization. Effect

Active Publication Date: 2016-06-22
高潞空气化工产品(上海)能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a high-dispersion, high-load, high-activity low-temperature methane reforming nickel-based catalyst and its application, which is used to overcome the existing methane reforming, especially methane reforming under high pressure. Poor catalyst stability, easy sintering and loss of components; steam reforming, high-temperature carbon dioxide reforming and other processes require high equipment materials, high energy consumption and harsh operating conditions; coke oven gas, purge gas, Exhaust gas such as flue gas and waste gas are difficult to be utilized as resources

Method used

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  • High-dispersion high-load high-activity nickel-based catalyst for low-temperature methane reforming and application of high-dispersion high-load high-activity nickel-based catalyst for low-temperature methane reforming
  • High-dispersion high-load high-activity nickel-based catalyst for low-temperature methane reforming and application of high-dispersion high-load high-activity nickel-based catalyst for low-temperature methane reforming
  • High-dispersion high-load high-activity nickel-based catalyst for low-temperature methane reforming and application of high-dispersion high-load high-activity nickel-based catalyst for low-temperature methane reforming

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Experimental program
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Effect test

Embodiment 1

[0070] By Ni-Ca / Al 2 O 35g of carrier alumina with a mass percentage of 75% in the finished catalyst product is used as the calculation basis, and the mass percentage of the active component Ni element is 20%, and the mass percentage of the synergistic component Ca element is 5%. The ratio of 1:1 is calculated to obtain the desired preparation of Ni-Ca / Al 2 O 3 The mass of the reactants in the finished catalyst product was 5.000 g of α-alumina, 6.606 g of nickel nitrate, and 1.964 g of calcium nitrate. And according to the formula V=n / C, the nickel element concentration in the reaction solution is 0.13mol / L to calculate the consumption of deionized water and n-butanol mixed solvent (the volume ratio of deionized water and n-butanol is 1:1) 175ml. And calculate the consumption of sodium dodecylbenzenesulfonate according to 1% of solvent quality.

[0071] Add α-alumina, nickel nitrate, calcium nitrate and sodium dodecylbenzene sulfonate to a mixed solvent composed of deioni...

Embodiment 2

[0075] By Ni-Ca-La / Al 2 O 3 In the finished catalyst, 5 g of carrier alumina with a mass percentage of 75% is used as the calculation basis, and the mass percentage of the active component Ni element is 20%, the mass percentage of the synergistic component Ca element is 3%, and the mass percentage of the synergistic component La element Calculated as 2%, and calculated according to the molar ratio between the corresponding elements of 1:1, to obtain the desired preparation of Ni-Ca-La / Al 2 O 3 The mass of reactants in the finished catalyst, in which β-Al(OH) 3 7.650 g, 5.653 g of nickel acetate, 0.879 g of calcium acetate, and 0.312 g of lanthanum nitrate. And according to the formula V=n / C and the nickel element concentration in the reaction solution is 0.2mol / L, the amount of absolute ethanol needed as a solvent is calculated as 113.6ml. And the amount of polyethylene glycol is calculated according to 1% of the solvent mass.

[0076] Use 113.6ml of absolute ethanol as s...

Embodiment 3

[0080] By Ni-Ce-Zr-Y / Al 2 O 3 5g of carrier alumina with a mass percentage of 74.8% in the finished catalyst product is used as the calculation basis, and the mass percentage of the active component Ni element is 20%, the mass percentage of the synergistic component Ce element is 3%, and the mass percentage of the synergistic component Zr element 2%, the mass percentage of the synergistic component Y element is 0.2%, and the molar ratio between the corresponding elements is 1:1 to obtain the desired preparation of Ni-Ce-Zr-Y / Al 2 O 3 The mass of reactants in the finished catalyst, in which γ-Al 2 O 3 5.000 g, 6.624 g of nickel nitrate, 0.621 g of cerium nitrate, 0.629 g of zirconium nitrate, and 0.058 g of yttrium nitrate. And according to the formula V=n / C and the nickel element concentration in the reaction solution is 0.2mol / L, the amount of deionized water needed as a solvent is calculated as 113.9ml. And the amount of polyethylene glycol is calculated according to 1%...

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Abstract

The invention belongs to the field of chemical industry, and relates to a high-dispersion, high-load, high-activity low-temperature methane reforming nickel-based catalyst and its application. The invention provides a high-dispersion, high-load, high-activity low-temperature methane reforming nickel-based catalyst, which comprises the following components in terms of mass percentage: active component 20-25%; synergistic component 1-30%; carrier 45-79% . The present invention further provides a preparation method of a high-dispersion, high-load and high-activity low-temperature methane reforming nickel-based catalyst and its use in low-temperature methane reforming reactions. The invention provides a high-dispersion, high-load, high-activity low-temperature methane reforming nickel-based catalyst and its application, which is suitable for high-pressure and low-temperature methane-carbon dioxide reforming reaction at a reaction temperature of 400-800°C, high-pressure and low-temperature methane-steam reforming, high-pressure and low-temperature reforming Methane reforming processes such as methane-carbon dioxide-steam mixed reforming have high catalytic activity and stability.

Description

technical field [0001] The invention belongs to the field of chemical industry, and relates to a high-dispersion, high-load, high-activity, low-temperature methane reforming nickel-based catalyst and application thereof. Background technique [0002] As a clean energy source, natural gas is an important part of China's strategy for smog control, energy conservation and emission reduction. By 2020, natural gas will account for more than 10% of China's primary energy. The continuous development of its production and application in China is the general trend. The main component of natural gas is methane. Converting methane into synthesis gas and then preparing chemical products or liquid fuels through Ficher-Tropsch (F-T) synthesis and other reactions is an important way to utilize methane. At the same time, it is also of great practical significance to realize the resource utilization of tail gas and waste gas, which were difficult to be efficiently utilized in the past, such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/78B01J23/83C01B3/40
CPCY02P20/52B01J23/78B01J23/83C01B3/40C01B2203/0233C01B2203/0238C01B2203/1041C01B2203/1241
Inventor 孙予罕袁昌坤张军李晋平肖亚宁黄巍孙志强王东飞孔文波潘秉荣
Owner 高潞空气化工产品(上海)能源科技有限公司
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