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Method for preparing hydrogen, oxygen and hydrocarbon mixed gas through reaction of rare earth diboron dicarbon material and water

A technology for the reaction of mixed gas and water, which is used in the production of hydrogen and other directions

Active Publication Date: 2021-05-07
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it can react with water to produce H 2 , O 2 , and CH 4 、C 2 h 6 、C 2 h 4 、C 2 h 2 、C 3 h 8 、C 3 h 6 、C 4 h 8 Hydrocarbon-based materials have not been reported, especially the reaction can be carried out at room temperature, and no additional energy is required during the reaction

Method used

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  • Method for preparing hydrogen, oxygen and hydrocarbon mixed gas through reaction of rare earth diboron dicarbon material and water
  • Method for preparing hydrogen, oxygen and hydrocarbon mixed gas through reaction of rare earth diboron dicarbon material and water
  • Method for preparing hydrogen, oxygen and hydrocarbon mixed gas through reaction of rare earth diboron dicarbon material and water

Examples

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Effect test

Embodiment 1

[0033] In this example, the 300 mesh Yb 2 o 3 Powder 49.24g, 200 mesh B 4 7.88g of C powder and 12.88g of 200 mesh C powder were put into a silicon nitride ball mill tank and ball-milled with absolute ethanol for 6h, dried at 60°C for 24h, passed through a 100-mesh sieve, then put into a graphite crucible, and the graphite crucible was sintered in the furnace Carry out sintering with a heating rate of 20°C / min, and keep warm for 8h when rising to 1800°C. The whole sintering process is carried out under the protection of high-purity argon (the volume purity of argon is above 99.999%). Such as figure 1 As shown, the obtained reaction product is subjected to XRD analysis, and it can be found that the prepared material is YbB 2 C 2 Mutually. Such as figure 2 As shown, it can be found from the scanning electron microscope photos that the prepared powder has a typical lamellar structure. Pass the sintered sample through a 500 mesh sieve, take 15.00g sample and 500mL H 2 O m...

Embodiment 2

[0039] In this example, the 200 mesh Y 2 o 3 Powder 28.80g, 200 mesh B 4 8.05g of C powder and 13.15g of 200 mesh C powder were put into a silicon nitride ball mill tank and ball milled with absolute ethanol for 12h, dried at 60°C for 24h, passed through a 100 mesh sieve, then put into a graphite crucible, and the graphite crucible was sintered in the furnace Carry out sintering at a heating rate of 5°C / min, and keep warm for 1h when rising to 2200°C. The whole sintering process is carried out under the protection of high-purity argon (the volume purity of argon is above 99.999%). Such as Figure 4 As shown, the obtained reaction product is subjected to XRD analysis, and it can be found that the prepared material is YB 2 C 2 Mutually. Such as Figure 5 As shown, it can be found from the scanning electron microscope photos that the prepared powder has a typical lamellar structure. The sintered sample was passed through a 500-mesh sieve, and 9.25g sample was mixed with 50...

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Abstract

The invention relates to the field of high-performance ceramic materials, in particular to a method for preparing hydrogen, oxygen and hydrocarbon mixed gas through reaction of a rare earth diboron dicarbon material and water. The rare earth oxide powder, boron carbide powder and graphite powder are used as raw materials to prepare rare earth diboron dicarbon powder, the raw material powder in a proper proportion is mixed for 6-12 hours through a physical and mechanical method, dried, sieved and then put into a graphite crucible, then the graphite crucible is put into a sintering furnace with high-purity argon to be sintered, the heating rate is 5-20 DEG C / min, the sintering temperature is 1800-2200 DEG C, and heat preservation is conducted for 1-8 hours. The prepared rare earth diboron dicarbon powder is sieved by a 500-mesh sieve and mixed with deionized water at room temperature to prepare mixed gas rich in hydrogen, oxygen, hydrocarbons and the like, the hydrogen and the oxygen are used as main components, the hydrocarbons comprise methane, ethane, ethylene, acetylene, propane, propylene, butylene and the like, and even a small amount of carbon monoxide and carbon dioxide are contained. The reaction process of the material and water and a gas product have potential application value in the industries of energy, chemical engineering, machinery and the like.

Description

technical field [0001] The invention relates to the field of high-performance ceramic materials, in particular to a method for preparing a mixed gas of hydrogen, oxygen and hydrocarbons by reacting a rare-earth diboron-dicarbon material with water. Background technique [0002] REB 2 C 2 The material has a layered crystal structure, which can be described as RE sheets with B 2 C 2 The sheets are stacked alternately in the direction of the c-axis. Currently, for REB 2 C 2 Materials, in addition to studying their crystal structures, mainly focus on magnetic and electrical properties, and about REB 2 C 2 There are few studies on the chemical activity and mechanical properties of materials. Document 1: SmithP.K. et al prepared GdB by arc melting method in Journal of Inorganic and Nuclear Chemistry 1967,29:375-382 2 C 2 material, and using this as an example to study the REB 2 C 2 Phase identification and characterization and the relationship between various phases in...

Claims

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Application Information

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IPC IPC(8): C04B35/56C04B35/626C01B3/04
CPCC04B35/56C04B35/626C01B3/04C01P2002/72C01P2004/03Y02E60/36
Inventor 陈继新李治辉
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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