LOHC Hydrogen Storage via Integrated Syngas Absorption
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Solution Overview
Problem
Conventional methods for storing hydrogen in Liquid Organic Hydrogen Carriers (LOHCs) are complex and involve multiple steps, which can be simplified and optimized.
Innovation Solution
A facility and method that includes an absorption chamber for hydrogen binding, a reactor for Water-Gas Shift Reaction, and endothermic chambers for pyrolysis and allothermal gasification to produce hydrogen-rich synthesis gas, which is then absorbed by an organic liquid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional PSA extraction method is used to extract hydrogen from synthesis gas, then hydrogen can be separated and stored in LOHC, but the process becomes complex and involves many steps
Solution Approach 1:
The patent combines the hydrogen extraction and LOHC binding steps into a single integrated absorption process. The organic liquid directly absorbs hydrogen from synthesis gas in one operation, eliminating the need for separate PSA extraction and subsequent LOHC treatment steps, thereby reducing overall process complexity while maintaining hydrogen separation effectiveness
Solution Approach 2:
The organic liquid serves multiple functions simultaneously: it acts as both the absorption medium for hydrogen and the storage carrier (LOHC). This multi-functionality eliminates the need for separate extraction and storage systems, simplifying the overall hydrogen storage process while ensuring reliable hydrogen separation and storage
2Reliability
If multiple processing steps are used for hydrogen storage, then hydrogen can be effectively stored in LOHC, but the process efficiency decreases due to complexity
Solution Approach 1:
By merging hydrogen absorption and storage functions into a single step using the organic liquid, the patent eliminates intermediate processing steps. This integration maintains effective hydrogen storage while improving process efficiency by reducing the time and energy required for multiple sequential operations
Solution Approach 2:
The organic liquid is pre-prepared and positioned in the absorption chamber before synthesis gas introduction. This preliminary preparation ensures that the absorption process can begin immediately upon gas introduction, eliminating setup time and improving overall process efficiency while ensuring effective hydrogen capture from the start
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
Simplifies the hydrogen storage process by directly absorbing and binding hydrogen in an organic liquid, reducing complexity and improving efficiency.
Implementation Method 1
The organic liquid absorbs at least a portion of the synthesis gas
Implementation Method 2
separates hydrogen from other components of the absorbed synthesis gas and bounds separated hydrogen to store bound hydrogen in the organic liquid
Implementation Method 3
The reactor is adapted to produce a hydrogen-rich synthesis gas by performing a Water-Gas Shift Reaction (WGSR) on synthesis gas
Implementation Method 4
a first endothermic chamber that is adapted to have feedstock perform endothermic break-down reactions to produce thermally-decomposed feedstock
Implementation Method 5
a second endothermic chamber that is adapted to produce the synthesis gas by performing an allothermal gasification process on a combination of the thermally-decomposed feedstock and first steam
Data Source
AI summary
A facility (100) for storing hydrogen in an organic liquid is disclosed. The facility (100) comprises an absorption chamber (190) adapted to hold the organic liquid, to receive synthesis gas such that the organic liquid sorbs the synthesis gas, separates the hydrogen from other components of the synthesis gas and bounds the hydrogen to store the hydrogen in the organic uid, and to release the other components of the synthesis gas from the organic liquid. Further, a method for storing hydrogen in an organic liquid is disclosed.