Conveyance-Belt Hydrogen Generation Without Reaction Accelerators
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Solution Overview
Problem
Existing hydrogen generation methods using sodium borohydride as a hydrogen carrier require additional reaction accelerators, leading to byproducts that are difficult to restore, and result in inefficient energy density due to excess water usage.
Innovation Solution
A hydrogen generation apparatus that applies a solid hydrogen carrier on a conveyance belt, ejects a water-containing liquid, collects hydrogen, and separates byproducts, using a heating apparatus to promote the reaction without additional accelerators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a reaction accelerator is added to promote hydrolysis of sodium borohydride, then hydrogen generation efficiency is improved, but byproduct restoration difficulty increases
Solution Approach 1:
The invention changes the physical state parameter of the hydrogen carrier from liquid to solid form. This parameter change allows the reaction to proceed efficiently without requiring reaction accelerators, thereby avoiding the problem of difficult byproduct restoration while maintaining high hydrogen generation efficiency
Solution Approach 2:
The invention replaces the chemical mechanism (using reaction accelerators) with a physical mechanism (solid state reaction). By using solid hydrogen carrier, the reaction can be promoted through physical contact and heating without needing chemical additives, thus solving the contradiction between reaction efficiency and byproduct restorability
2Productivity
If excess water is used in hydrolysis reaction, then hydrogen generation is promoted, but energy density decreases
Solution Approach 1:
The invention changes the water content parameter from excess water to controlled water-containing liquid. By precisely controlling the water content in the liquid phase reaction system, the reaction efficiency is maintained while minimizing excess water usage, thus preserving energy density
Solution Approach 2:
Instead of using excess water to ensure complete reaction, the invention uses a controlled amount of water-containing liquid that is sufficient for the reaction. This partial action approach avoids the waste of energy density while still achieving complete hydrogen generation from the solid hydrogen carrier
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables continuous, stable, and efficient hydrogen generation with improved energy density by promoting the reaction between the hydrogen carrier and water-containing liquid, allowing for easy byproduct recovery and reduced reliance on additives.
Implementation Method 1
a heating apparatus configured to heat the conveyance belt
Implementation Method 2
generates hydrogen by hydrolysis of the sodium borohydride
Data Source
AI summary
A hydrogen generation apparatus applies a solid hydrogen carrier on a surface of a conveyance belt by an application apparatus, and ejects, by an ejection apparatus, a liquid containing water onto the hydrogen carrier applied on the surface. A hydrogen collection apparatus collects hydrogen generated by a reaction between the hydrogen carrier and the liquid on the surface. A byproduct generated by the reaction between the hydrogen carrier and the liquid on the surface is collected by a byproduct collection apparatus. A heating apparatus heats the conveyance belt 41.