Nickel-based catalyst and method for preparing hydrogen from bio-oil

A nickel-based catalyst and bio-oil technology, applied in chemical instruments and methods, heterogeneous catalyst chemical elements, physical/chemical process catalysts, etc., can solve the problems of low hydrogen concentration and yield, high reaction temperature, and difficult hydrogen purification etc. to achieve the effects of reducing energy consumption, improving purity and lowering temperature

Inactive Publication Date: 2017-06-16
UNIV OF SCI & TECH OF CHINA
View PDF10 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Biomass gasification hydrogen production technology has the advantages of simple equipment and process, wide adaptability of raw materials and large hydrogen production capacity, but there are still many shortcomings: such as low hydrogen concentration and yield, high reaction temperature, large energy consumption and Product separation difficulties and other problems that need to be solved
However, the existing bio-oil catalytic reforming hydrogen production process still has problems such as high reaction temperature, high energy consumption, and difficult hydrogen purification.

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
  • Nickel-based catalyst and method for preparing hydrogen from bio-oil
  • Nickel-based catalyst and method for preparing hydrogen from bio-oil
  • Nickel-based catalyst and method for preparing hydrogen from bio-oil

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0045] In the method for preparing hydrogen provided by the present invention, bio-oil and water are first mixed and reacted in the presence of the nickel-based catalyst. Wherein, the bio-oil is produced by rapid cracking of biomass, and its main components are oxygen-containing organic matter and water. In an embodiment provided by the present invention, the main constituent elements of the oxygen-containing organic matter in the bio-oil are C, H and O, wherein, the content of C in the oxygen-containing organic matter is 35-45 wt%, and the content of H in the The content of the oxygen-containing organic matter is 5-10 wt%, and the content of O in the oxygen-containing organic matter is 45-55 wt%. In another embodiment provided by the present invention, the main content of the oxygen-containing organic matter in the bio-oil is The constituent elements are C, H and O, wherein the content of C in the oxygen-containing organic matter is 39.92-41.71 wt%, the content of H in the ox...

Embodiment 1

[0071] Preparation of Nickel-Based Catalysts

[0072] Weigh commercially available 79.41g nickel nitrate (molecular formula: Ni(NO 3 ) 2 ·6H 2 O, purity: analytically pure AR), 15.43g ferric nitrate (molecular formula: Fe(NO 3 ) 3 9H 2 O, purity: analytically pure AR), 16.40g cerium nitrate (molecular formula: Ce(NO 3 ) 2 ·6H 2 O, purity: analytically pure AR) and 36.85g magnesium nitrate (molecular formula: Mg(NO 3 ) 2 ·6H 2 O, purity: analytically pure AR), add 500mL deionized water, configure nitrate mixed solution; then commercially available 55.0gγ-Al 2 o 3 Molecular sieve powder (Pingxiang Zhongtian Chemical Filling Co., Ltd., model KA405) was added to the above nitrate solution, stirred for 5 hours, and then left to stand for 24 hours after impregnation; Dry in an oven at 120°C for 12 hours; finally use a muffle furnace to bake at 550°C and an air atmosphere for 8 hours to obtain a mixed oxide catalyst precursor containing nickel, iron, cerium, magnesium and...

Embodiment 2

[0075] Preparation of Nickel-Based Catalysts

[0076] Weigh commercially available 95.38g nickel nitrate (molecular formula: Ni(NO 3 ) 2 ·6H 2O, purity: analytically pure AR), 18.72g ferric nitrate (molecular formula: Fe(NO 3 ) 3 9H 2 O, purity: analytically pure AR), 19.42g cerium nitrate (molecular formula: Ce(NO 3 ) 2 ·6H 2 O, purity: analytically pure AR) and 36.85g magnesium nitrate (molecular formula: Mg(NO 3 ) 2 ·6H 2 O, purity: analytically pure AR); add 600mL deionized water to configure a nitrate mixed solution; then commercially available 47.5gγ-Al 2 o 3 Molecular sieve powder (Pingxiang Zhongtian Chemical Filling Co., Ltd., model KA405) was added to the above nitrate solution, stirred for 5 hours, and then left to stand for 24 hours after impregnation; Dry in an oven at 120°C for 12 hours; finally use a muffle furnace to bake at 550°C and an air atmosphere for 8 hours to obtain a mixed oxide catalyst precursor containing nickel, iron, cerium, magnesium ...

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
Particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention especially relates to a nickel-based catalyst and a method for preparing hydrogen from bio-oil, belonging to the field of production of hydrogen from biomass. The nickel-based catalyst provided by the invention comprises, by weigh, 20 to 25 parts of NiO, 10 to 15 parts of Fe2O3, 6 to 8 parts of CeO2, 5 to 6 parts of MgO and 46 to 59 parts of Al2O3. The method provided by the invention comprises the following steps: a) reacting the bio-oil with water in the presence of the nickel-based catalyst so as to obtain a hydrogen-containing gas mixture; and b) allowing the hydrogen-containing gas mixture to undergo a reaction in the presence of a copper-zinc catalyst so as to obtain hydrogen. Experimental results show that when the method provided by the invention is used for production of hydrogen from bio-oil, reaction temperature is 300 to 650 DEG C; the conversion rate of the bio-oil is as high as 95.9%; the yield of hydrogen can reach 12.9 g per 100 g of the bio-oil; and the content of hydrogen in a hydrogen product can reach 99.98 vol%.

Description

technical field [0001] The invention belongs to the field of hydrogen production from biomass, and in particular relates to a nickel-based catalyst and a method for producing hydrogen by utilizing bio-oil. Background technique [0002] The earth produces 173 billion tons of matter through photosynthesis every year, and the energy contained in it is equivalent to 10 times the total energy consumption in the world. With the rapidly increasing pressure of energy demand and environmental protection, the utilization of renewable biomass energy has received great attention. The development and utilization of biomass energy not only helps to promote energy diversification, but also reduces greenhouse gas emissions and eases the pressure on the environment, which represents an important development trend of the energy industry. Hydrogen is currently one of the most ideal clean energy sources with high calorific value. The production of hydrogen from abundant, environmentally friend...

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
IPC IPC(8): B01J23/83C01B3/32C01B3/16C01B3/52
CPCY02P20/52B01J23/83B01J23/002B01J2523/00C01B3/16C01B3/326C01B3/52C01B2203/0283C01B2203/0475C01B2203/1211B01J2523/22B01J2523/31B01J2523/3712B01J2523/845B01J2523/847
Inventor 李全新吴小平刘俊旭姜沛汶薛鹤朱丽娟张义恒金凤夏彤岩
Owner UNIV OF SCI & TECH OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap