Industrial H2 Fuel Integration With CO2 Heat Carrier Recycling
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Solution Overview
Problem
Industrial processes, particularly cement production, heavily rely on fossil fuels, leading to significant greenhouse gas emissions, and there is a need for efficient carbon dioxide management and utilization without major changes to existing plant setups.
Innovation Solution
A system integrating renewable hydrogen (H2) as a fuel within industrial plants, using it as a heat carrier, capturing and recycling carbon dioxide (CO2) as a byproduct, and employing electrolysis to regenerate H2 and O2, with a controller managing gas flow and temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If fossil fuels are used for heat and power in industrial plants, then energy requirements are met, but greenhouse gas emissions increase significantly
Solution Approach 1:
The patent changes the chemical composition parameter of the fuel from fossil-based to biomass-based, transforming the fuel source while maintaining energy supply capabilities. This parameter change enables the system to meet industrial energy requirements while significantly reducing greenhouse gas emissions through the natural carbon cycle of biomass.
Solution Approach 2:
The patent converts the harmful byproduct CO2 into a beneficial resource by capturing it from the combustion process and reusing it as a carbonating agent in beverage production. This transforms the harmful emission into a valuable product ingredient, simultaneously reducing environmental impact and creating economic value.
2Object-generated harmful factors
If CO2 capture and utilization systems are integrated into industrial plants, then emissions are reduced, but system complexity increases
Solution Approach 1:
The patent merges the CO2 capture function with the existing combustion and product formulation processes. The CO2 captured from biomass combustion is directly integrated into the beverage carbonation process, combining emission reduction with product manufacturing in a unified system that avoids separate complex capture and utilization infrastructure.
Solution Approach 2:
The system uses its own internally generated CO2 emissions as the carbonating agent for beverage production. By capturing and reusing CO2 produced within the same industrial plant, the system eliminates the need for external CO2 supply chains and complex separation purification systems, simplifying the overall architecture.
3Object-generated harmful factors
If renewable fuel gas is used instead of fossil fuels, then environmental sustainability is improved, but fuel supply infrastructure requirements increase
Solution Approach 1:
The system produces its own renewable fuel gas through on-site biomass gasification, eliminating dependence on external renewable fuel supply infrastructure. The biomass feedstock is converted into synthesis gas within the plant, providing a self-sufficient fuel source that maintains environmental benefits while avoiding infrastructure complexity.
Solution Approach 2:
The biomass gasification system serves multiple functions: it generates fuel gas for combustion, produces CO2 for carbonation, and can potentially generate other chemical intermediates. This multi-functionality reduces the need for separate specialized infrastructure for each purpose, simplifying the overall system.
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
Significantly reduces CO2 emissions, enhances process control, and promotes sustainable cement manufacturing by utilizing CO2 as a heat carrier and sequestrating excess CO2, aligning with global environmental sustainability goals.
Implementation Method 1
a gasifier converting a biomass feedstock into a synthesis gas
Implementation Method 2
a catalyst promoting the production of liquid hydrocarbons from the synthesis gas
Implementation Method 3
employing electrolysis to regenerate H2 and O2
Data Source
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AI summary
Providing an implementable renewable fuel gas plant processes with management of greenhouse gases with minimal changes to existing plant set ups is a technical challenge to be addressed. Embodiments herein provide a system for renewable fuel gas generation and utilization in industrial plants with carbon dioxide as heat carrier. The system design integrates renewable fuel gas (H2) which is generated within the system and utilized to meet the thermal energy requirements of the production process. CO2 produced as byproduct of calcination in a process equipment, such as during calcination in cement plant is used as a heat-transferring medium to heat the H2. Further, the system provides recycling of the generated byproducts by separating the exhaust gases, comprised of CO2 and H2O. The H2O is recycled to generate H2 via electrolysis. The separated CO2 again serves as a heat-transferring medium, while the excess CO2 is sequestrated.