Fuel Cell Anode Gas Processor Recirculation
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Solution Overview
Problem
Fuel cell devices operating with natural gas face inefficiencies due to the need for multiple media feed lines and complex setups, particularly in desulfurization, oxidation, and reforming processes, which complicate assembly and increase susceptibility to faults.
Innovation Solution
Incorporating a recirculation unit to supply a portion of anode waste gas back to the anode gas processor, which combines desulfurization, oxidation, and reformer units in a series or parallel configuration, reducing the number of fluid lines and enhancing the fuel cell device's efficiency and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate units (desulfurization, oxidation, reforming) are used in the anode gas processor, then the fuel cell device can perform complete natural gas processing functions, but the device complexity and number of fluid lines increase
Solution Approach 1:
The patent combines desulfurization, oxidation, and reforming units into a single integrated anode gas processor. Multiple processing functions are performed within one device structure, reducing the number of separate fluid lines and connections needed while maintaining complete natural gas processing capability.
Solution Approach 2:
The anode gas processor is designed as a multi-functional unit that performs desulfurization, oxidation, and reforming operations sequentially within a single device. This universal design allows one piece of equipment to replace multiple separate units, simplifying the overall system architecture.
2Adaptability or versatility
If multiple separate units are used in the anode gas processor, then complete natural gas processing is achieved, but assembly complexity increases
Solution Approach 1:
By merging desulfurization, oxidation, and reforming functions into a single integrated anode gas processor, the patent reduces the number of separate components that need to be assembled. This integration simplifies manufacturing and assembly processes while preserving all necessary natural gas processing functions.
3Adaptability or versatility
If multiple separate units are used, then comprehensive gas processing is possible, but susceptibility to faults increases
Solution Approach 1:
The integration of multiple gas processing functions into a single anode gas processor reduces the number of connection points and interfaces between separate units. Fewer connections mean fewer potential failure points, thereby improving system reliability while maintaining comprehensive gas processing capabilities.
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
This configuration simplifies the fuel cell system, reduces assembly complexity, and provides a reliable and efficient means of hydrogen and steam supply, enhancing the overall operating characteristics and durability of the fuel cell device.
Implementation Method 1
desulfurization unit provided to desulfurize the natural gas
Implementation Method 2
desulfurization unit provided to desulfurize the natural gas
Implementation Method 3
oxidation unit provided to perform partial oxidation
Implementation Method 4
reformer unit provided to produce at least one fuel gas
Implementation Method 5
recirculation unit provided to supply at least a proportion of an anode waste gas from the fuel cell unit to the anode gas processor
Data Source
AI summary
The invention is based on a fuel cell device which is provided to be operated with a natural gas, having a fuel cell unit (12) and an anode gas processor (14) arranged upstream of the fuel cell unit (12), which anode gas processor is provided to prepare the natural gas for use in the fuel cell unit (12) and which comprises a desulfurization unit (18), which is provided to desulfurize the natural gas, an oxidation unit (20), which is provided to perform partial oxidation, and a reformer unit (22), which is provided to produce at least one fuel gas.It is proposed that the fuel cell device comprise a recirculation unit (16), which is provided to supply at least a proportion of an anode waste gas from the fuel cell unit (12) to the fuel cell device (10).