Methanization Heat Recovery for C/C Preform Carbon Capture
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Capturing CO2 emissions in small point sources like aircraft C/C brake manufacturing is costly and logistically challenging due to the high energy input required for underground sequestration, making it impractical for decarbonization goals.
Innovation Solution
A system that recovers energy from the methanization reaction of CO2 and H2 to produce methane, utilizing heat and steam for thermal and electric energy, which is then used in the C/C preform production process, including a heat recovery unit, separator, and turbine to generate electricity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If CO2 emissions are captured and stored via underground sequestration, then CO2 emissions are reduced, but the energy input and cost become prohibitively high for small point sources
Solution Approach 1:
The patent converts the harmful CO2 emissions into a beneficial product (methane fuel) through the methanization reaction. Instead of merely sequestering CO2, the system uses CO2 from C/C preform production as a feedstock to produce methane, which can then be used as energy source within the same production process, thereby eliminating waste while recovering energy
Solution Approach 2:
The system makes the C/C preform production process self-sufficient by internally recycling CO2 emissions back into the process through methanization. The methane produced serves the process that generated the CO2, creating a closed-loop system that reduces external energy dependencies and eliminates the need for energy-intensive external sequestration infrastructure
2Object-affected harmful factors
If CO2 emissions are captured for underground sequestration, then CO2 emissions are reduced, but the infrastructure cost and logistical complexity increase significantly
Solution Approach 1:
The patent transforms CO2 from a waste product requiring complex disposal infrastructure into a valuable chemical feedstock. By implementing methanization, the system produces methane fuel on-site, eliminating the need for pipelines, storage facilities, and sequestration infrastructure that would be required for traditional CO2 capture approaches
Solution Approach 2:
The patent introduces hydrogen as an intermediary substance that enables the conversion of CO2 into methane. This chemical mediator allows CO2 to be transformed into a useful energy carrier through the methanization reaction, providing a practical pathway for CO2 utilization without requiring complex sequestration infrastructure
3Power
If heat and steam are generated through traditional combustion methods, then energy is produced, but CO2 emissions increase
Solution Approach 1:
The patent converts CO2 emissions into a useful energy source (methane) through methanization. The methane produced can then be combusted to generate heat and steam for the C/C preform production process, effectively closing the carbon loop by using the process's own emissions to fuel its energy needs, thereby eliminating the need for external fossil fuel combustion
Solution Approach 2:
The patent fundamentally changes the chemical composition of the energy carrier by converting CO2 and H2 into methane through catalytic methanization. This parameter change transforms a harmful greenhouse gas into a useful fuel, allowing the system to maintain energy production while eliminating CO2 emissions from the balance sheet
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
Converts CO2 emissions into usable products like methane and electricity, reducing the energy input needed for sequestration and enhancing the efficiency of carbon capture processes.
Implementation Method 1
a methanization reactor operating to convert carbon dioxide (CO2) and supplied hydrogen (H2) via methanization to produce methane (CH4)
Implementation Method 2
The heat recovery unit is configured to receive at least one of heat or steam from a methanization reactor
Implementation Method 3
The heat recovery unit uses the at least one of the heat or the steam to operate the turbine to produce electricity
Implementation Method 4
the heat recovery unit is configured to condense excess steam to water (H2O) which is supplied to the burner/steam generator
Data Source
AI summary
A system is provided for energy recovery. The system includes a heat recovery unit. The heat recovery unit is configured to receive at least one of heat or steam from a methanization reactor operating to convert carbon dioxide (CO2) and supplied hydrogen (H2) via methanization to produce methane (CH4), generate energy using at least one of the heat or the steam from the methanization reactor, and supply the generated energy to at least one of a carbon/carbon (C/C) preform production process, a separator, or another system.