Dehydrogenation Catalyst and Hydrogen-Storage Alloy for Pure Hydrogen Supply
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Solution Overview
Problem
The challenges of safely and efficiently storing and transporting hydrogen gas include high transportation costs, safety hazards, and the need for high-pressure tanks, which are addressed by developing a process for producing high-purity and high-pressure hydrogen gas using a dehydrogenation catalyst and hydrogen-storage alloys.
Innovation Solution
A process involving the dehydrogenation of organic hydrogen-storage materials with a catalyst, followed by cooling, purification with hydrogen-storage alloys, and heating to release high-purity hydrogen gas, utilizing specific temperature and pressure conditions to achieve high efficiency and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If hydrogen gas is transported in high-pressure gaseous state, then hydrogen gas can be directly transported from production site to fueling station, but transportation cost is high and long-distance transportation has traffic safety hazards
Solution Approach 1:
The patent transforms hydrogen from gaseous state to liquid organic hydrogen-storage material state, fundamentally changing the physical parameter of hydrogen storage. This allows hydrogen to be stored and transported in a stable liquid form at ambient conditions, eliminating the safety hazards and high costs associated with high-pressure gaseous transportation while maintaining direct transport capability from production site to fueling station
Solution Approach 2:
The patent introduces organic hydrogen-storage materials as an intermediary substance between hydrogen production and hydrogen fueling. These materials serve as a carrier that can store hydrogen in a stable form for transportation, then release it at the destination. This intermediary approach resolves the contradiction by providing both ease of transport (like direct gas transport) and safety (unlike high-pressure gas storage tanks)
2Quantity of substance
If hydrogen gas is stored in high-pressure gas state, then hydrogen gas storage is achieved, but the cost and area of hydrogen-storage tanks are high and large with major safety hazards
Solution Approach 1:
The patent changes the storage parameter of hydrogen from high-pressure gaseous state to chemical-bonded state in organic compounds. This parameter change eliminates the need for expensive and large high-pressure storage tanks, as hydrogen can be stored in conventional containers in the form of liquid organic hydrogen-storage materials with high density and stability
Solution Approach 2:
Organic hydrogen-storage materials act as an intermediary that provides high hydrogen storage capacity without requiring specialized high-pressure tanks. The materials chemically bind hydrogen, allowing dense storage in compact, safe containers that can be easily transported and handled, thus resolving the contradiction between storage capacity and device complexity
3Manufacturing precision
If a dehydrogenation catalyst is used to produce hydrogen gas from organic hydrogen-storage materials, then high-purity hydrogen gas can be generated, but the process requires specific temperature and pressure conditions
Solution Approach 1:
The patent employs a catalyst that enables the dehydrogenation reaction to proceed under relatively mild conditions (150-450°C) without requiring complex external heating or pressurization systems. The catalyst itself facilitates the reaction efficiency and selectivity, allowing the system to self-regulate under simple temperature control, thus achieving high hydrogen purity without excessive device complexity
Solution Approach 2:
The patent optimizes the reaction parameters (temperature 150-450°C, pressure 0.1-5 MPa) to achieve a balance between hydrogen purity and process simplicity. By carefully selecting and controlling these parameters, the dehydrogenation reaction produces high-purity hydrogen while avoiding the need for extremely complex temperature and pressure control systems, thus resolving the contradiction between manufacturing precision and device complexity
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
The process achieves high-purity and high-pressure hydrogen gas production, reducing transportation costs and safety risks, enabling efficient hydrogen supply systems.
Implementation Method 1
An organic liquid hydrogen-storage material is contacted and reacted with a dehydrogenation catalyst to obtain a dehydrogenation reaction product containing hydrogen gas
Implementation Method 2
the hydrogen-rich gas is contacted with a hydrogen-storage alloy to obtain a hydrogen-containing alloy
Data Source
AI summary
A catalyst used for dehydrogenation of an organic hydrogen-storage material to generate hydrogen, a support for the catalyst, and a preparation process thereof are presented. A hydrogen-storage alloy and a preparation process thereof are provided. A process for providing high-purity hydrogen, a high-efficiently distributed process for producing high-purity and high-pressure hydrogen, a system for providing high-purity and high-pressure hydrogen, a mobile hydrogen supply system, and a distributed hydrogen supply apparatus are also described.