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Hydrogen production method and apparatus and engine employing hydrogen production apparatus

A manufacturing method and a technology for manufacturing devices, which are applied in the production of hydrogen, chemical instruments and methods, hydrogen, etc., can solve the problems of low product qualification rate, and achieve the effects of reducing fuel costs and simplifying devices

Inactive Publication Date: 2005-09-28
SANYO ELECTRIC CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The product pass rate of this manufacturing method is as low as about 20-25%, and as a result, 75-80% of a large amount of waste silicon powder is produced in the form of slurry

Method used

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  • Hydrogen production method and apparatus and engine employing hydrogen production apparatus
  • Hydrogen production method and apparatus and engine employing hydrogen production apparatus
  • Hydrogen production method and apparatus and engine employing hydrogen production apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0109] The experimental example of using waste silicon to generate high-pressure hydrogen is shown below. Also, in this experiment, a pressure-resistant reaction vessel with an internal volume of 1 liter was used, and the safety valve was set at 17 MPa in consideration of safety. Therefore, only high-pressure hydrogen near 17 MPa was generated. However, if the stoichiometric amount is supplied in this way, It can be inferred that, for example, about 100 MPa is also sufficient.

[0110] In addition, in Experiment Nos. 102 and 103 shown in Table 1, the temperature of the reactor exceeded 50° C. in about 10 seconds without heating equipment, and a high pressure of about 17 MPa was reached by the explosive reaction at this time.

[0111] Experiment number

sample

(purity, quantity)

NaOH aqueous solution (concentrated

degree, volume, initial temperature)

maximum temperature

Maximum reach pressure

101

Waste silicon (purit...

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PUM

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Abstract

There is provided a hydrogen production apparatus having a simple structure for efficiently producing hydrogen. The hydrogen production apparatus 10 comprises a reactor 12 for reacting silicon (which may be waste silicon) and an aqueous basic hydroxide solution, a hydrogen absorbing alloy 20 for storing hydrogen produced by the reaction, and a reservoir / filter 14 which retains a solid or liquid product generated in the reactor 12 and filters a solution or suspension containing the solid or liquid product so as to separate the product from water.

Description

technical field [0001] The present invention relates to a method for producing hydrogen, a device for producing hydrogen, and an engine having the device, particularly by using waste silicon as a raw material for producing hydrogen. Background technique [0002] Currently, most hydrogen is produced from natural gas. Here, hydrogen and carbon monoxide are produced through the water vapor reforming reaction of natural gas, and then the carbon monoxide and water vapor are converted into hydrogen and carbon dioxide through an aqueous gas shift reaction, and the hydrogen and carbon dioxide are separated by membrane to obtain pure of hydrogen. In addition, it is known that coke oven gas and hydrogen gas produced as a by-product in the production of caustic soda in the iron-making industry are known. In addition, hydrogen can also be produced from bioactivities through solar cells and wind power. [0003] For example, Japanese Patent Application Laid-Open No. 8-115733 proposes t...

Claims

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Application Information

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IPC IPC(8): C01B3/06C01B3/00C01B3/08C01B3/10H01M8/00H01M8/06
CPCH01M8/065H01M2250/20Y02T90/32C01B3/0005C01B3/10Y02E60/50Y02E60/327Y02E60/36Y02E60/32Y02T90/40F24F7/08F24F12/002F24F13/28
Inventor 秋山友宏早坂正树上杉浩之对比地元幸
Owner SANYO ELECTRIC CO LTD
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