LOHC Power Module for Net-Zero Hydrogen Dehydrogenation
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Solution Overview
Problem
Existing LOHC-based hydrogen production systems face challenges in achieving carbon neutrality without relying on additional electrical storage or combustion, which can increase greenhouse gas emissions and reduce hydrogen availability for downstream applications.
Innovation Solution
A blended LOHC feed composition with a primary component containing at least partially hydrogenated LOHC and a secondary component sourced from carbon-neutral carbon, which is dehydrogenated to generate hydrogen, electrochemically converted to electricity, and balanced to match atmospheric carbon emissions, using a dehydrogenation reactor and fuel cell to achieve net zero carbon oxides.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by stationary object
If LOHC-based hydrogen production systems use electrical heating elements to generate heat for dehydrogenation, then the hydrogen production process can operate, but additional electrical storage and battery management equipment are required, increasing device complexity
Solution Approach 1:
The patent combines the heat generation function with the existing fuel cell system by using the fuel cell's electrical output to power the heating element, merging energy production and heat generation into a single integrated system that eliminates the need for separate electrical storage equipment
Solution Approach 2:
The fuel cell system serves itself by using its own electrical output to generate the heat required for dehydrogenation, creating a self-sufficient system where the electricity generated is immediately utilized for the heating process rather than requiring external storage infrastructure
2Device complexity
If electricity for the heating element is drawn from downstream fuel cell equipment, then electrical storage equipment is reduced, but the amount of electricity available for the target application is reduced
Solution Approach 1:
The patent changes the operational parameters of the fuel cell system by adjusting the electrical load distribution dynamically, allowing the system to allocate electricity between heating and target applications based on real-time demands, thereby maintaining both reduced storage complexity and sufficient power availability
3Device complexity
If conventional combustion of hydrogen is used to generate heat for dehydrogenation, then the system can operate without electrical storage, but the amount of hydrogen available for downstream applications is reduced, lowering productivity
Solution Approach 1:
The patent replaces the mechanical combustion process with an electrochemical heating approach, using electricity from the fuel cell to power heating elements, thereby substituting a hydrogen-consuming process with an electricity-based process that does not reduce hydrogen availability for downstream applications
4Ease of manufacture
If LOHC systems are used to transport hydrogen to remote sites, then delivery infrastructure requirements are reduced, but the systems cannot operate in carbon-neutral mode without additional equipment, increasing device complexity
Solution Approach 1:
The patent makes the LOHC system universally applicable to both carbon-neutral and non-carbon-neutral operations by integrating a dual-mode capability: the system can operate using electrical heating when renewable electricity is available (carbon-neutral mode) or switch to alternative heating methods when not, thereby maintaining infrastructure simplicity while achieving carbon neutrality when conditions permit
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 system generates hydrogen and electricity with net zero atmospheric carbon emissions, enabling efficient and carbon-neutral operation in both fixed and mobile applications, including bursts of energy for short-duration needs.
Implementation Method 1
supplying the blended LOHC feed to a dehydrogenation reactor within the power module and generating hydrogen therefrom
Implementation Method 2
electrochemically converting at least a portion of the generated hydrogen in a fuel cell unit to electricity
Data Source
AI summary
The present disclosure relates generally to a carbon-neutral process for the generation of carbon-neutral hydrogen and carbon-neutral electricity. More specifically, the present disclosure relates to compositions, methods and apparatus employing a carbon-neutral process for generating electricity employing a liquid organic hydrogen carrier (LOHC) for supplying hydrogen for generating the carbon neutral electricity. The present disclosure also relates more specifically to carbon-neutral compositions consisting of liquid organic hydrogen carriers used for supplying hydrogen to generate electricity that may be regenerated in a carbon-neutral process using an apparatus with a net zero atmospheric emission of carbon oxides.