Unlock instant, AI-driven research and patent intelligence for your innovation.

NiO/CeMO catalyst for hydrogen production through methane steam reforming as well as preparation method and application thereof

A technology for producing hydrogen from methane steam and reforming, which is applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., and can solve the problems affecting the activity and stability of methane steam. and other problems, to achieve the effect of improving the activity and stability and the selectivity of hydrogen, reducing the process flow, and increasing the activity and stability

Active Publication Date: 2020-11-24
TIANJIN UNIV
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The effect of preactivation treatment directly affects the activity and stability of methane steam reforming

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • NiO/CeMO catalyst for hydrogen production through methane steam reforming as well as preparation method and application thereof
  • NiO/CeMO catalyst for hydrogen production through methane steam reforming as well as preparation method and application thereof
  • NiO/CeMO catalyst for hydrogen production through methane steam reforming as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0039] (1) Preparation of catalyst

[0040] In this specific embodiment, a cerium oxide carrier supported nickel oxide catalyst and a cerium oxide carrier doped with the promoter element M are prepared. Based on the total mass of the catalyst, the loading amount of Ni in the final catalyst is 10%. The prepared catalyst is dried, roasted, tableted and screened, and packed into a fixed bed. The purity of the chemical reagents in the present invention is analytical pure.

Embodiment 1

[0044] Example 1: Preparation of NiO / CePrO catalyst

[0045] The preparation method of the catalyst in Example 1 is similar to the preparation method of the comparative catalyst. The difference is that 1.34 g of praseodymium nitrate hexahydrate was added at the same time in step (1) to prepare a praseodymium (Pr) element-doped oxide Cerium support (CePrO support), and then through step (2) to support nickel oxide on the CePrO support to prepare a NiO / CePrO catalyst, wherein based on the total mass of the catalyst, the loading amount of Ni in the final catalyst is 10%, praseodymium The doping amount is 20%.

Embodiment 2

[0046] Example 2: Preparation of NiO / CeLaO catalyst

[0047] The preparation method of the catalyst in Example 1 is similar to the preparation method of the comparative catalyst. The difference is that 1.33 g of lanthanum nitrate hexahydrate was added at the same time in step (1) to prepare La element-doped cerium oxide support ( CeLaO support), and then through step (2) loading nickel oxide on the CeLaO support to prepare a NiO / CeLaO catalyst, wherein based on the total mass of the catalyst, the loading amount of Ni in the final catalyst is 10%, and lanthanum is doped The amount is 20%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
lengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a NiO / CeMO catalyst for hydrogen production through methane steam reforming. A carrier of the catalyst is auxiliary element doped cerium oxide, an active component includes nickel oxide located on the carrier, and based on the total mass of the catalyst, the loading amount of Ni is 0.1-40%; and an auxiliary element M is selected from praseodymium Pr, lanthanum La, samariumSm or zirconium Zr, and the doping amount of the auxiliary element M is 0-50% and does not include 0. The auxiliary element such as Pr, La, Sm, Zr or the like is doped in the cerium oxide, and oxygenvacancies are easier to form due to the difference of the ionic radiuses and the valence states of the doping element M and Ce. The catalyst is pretreated and activated directly by raw material steam,and rich oxygen vacancies of the carrier are beneficial to activation and dissociation of raw material water, so that the activity and stability of methane steam reforming are improved. Besides, a method is simple and extremely low in cost, the process risk is reduced, the technological process is shortened, and the energy consumption and capital of methane steam reforming conversion are reduced,so that the efficiency of hydrogen production by methane steam reforming is improved.

Description

Technical field [0001] The invention belongs to the field of hydrogen production by methane steam reforming, and specifically relates to a NiO / CeMO methane steam reforming hydrogen production catalyst and a preparation method and application thereof. Background technique [0002] Fossil energy, including coal, oil, and natural gas as the basic energy, provides a solid foundation for the development of human society, but the inherent shortcomings of fossil energy include its limited resources, non-renewable, and a large amount of poisonous and harmful after use. Waste. Therefore, the development of clean and pollution-free new energy is a major issue that needs to be solved urgently. Hydrogen energy is a clean, high-efficiency, and pollution-free green energy. It has attracted people's attention because of its large combustion calorific value, high fuel efficiency, non-polluting water and the products can be recycled. In addition, hydrogen can be used in a variety of ways. It ca...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/83C01B3/40
CPCB01J23/83C01B3/40Y02P20/52
Inventor 李国柱肖周荣张香文王涖邹吉军潘伦
Owner TIANJIN UNIV