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Lower Your Carbon Footprint with our Turnkey Carbon Capture Solutions
We help heavy industry progress towards net zero by capturing and storing CO2 emissions through carbon capture utilization and storage technology.
How Post-Combustion Carbon Capture Works:
Carbon capture projects can be stand alone projects or can work in conjunction with waste heat to power projects to reduce both scope 1 and scope 2 emissions.
One of the most significant challenges of deploying carbon capture projects is economics. Several industries that want to use carbon capture to decarbonize their operations also happen to have ample waste heat as a byproduct of their process. These industries such as cement, natural gas, fertilizer, and steel, are good candidates for Waste Heat to Power (WHP) along with carbon capture.
Kanin utilizes WHP, a readily available solution that not only generates revenue through power, but also cools the exhaust temperatures needed for post-combustion carbon capture. This then reduces operating costs, therefore making carbon capture projects more economically viable by minimizing a barrier for adoption. Cost reduction can be achieved by reducing opex costs by monetizing electricity as an additional revenue stream, as well as providing electricity created from WHP to operate the post-combustion carbon capture system.
Post-Combustion Carbon Capture Technology
There are several methods of post-combustion carbon capture (PCCC), each suited to different industrial applications and emission sources. Waste heat from the emission source can be used to generate electricity using a WHP system which can then be used to power the PCCC system, therefore reducing both scope 1 and scope 2 emissions.
At Kanin Energy, we aim to use commercially available technology to mitigate potential risks. The most common technologies are:
- Amine: Traditional point-source post-combustion carbon capture technology for flue gas streams. It relies on solvents (as the amine) that have a high selectivity for binding to CO2 over other molecules. It is composed mainly of two components:
- The absorber
- The stripper
The flue gas with CO2 enters the absorber to react with the solvent and exits back to the atmosphere with a reduced CO2 concentration. The solvent flows to the stripper where it is usually regenerated by adding heat, so it can release the CO2 captured in a controlled manner and is pumped back to capture more CO2 in the absorber. Heat and electricity are required to operate this technology!
Alternative Post-Combustion Carbon Capture Technology
- Cryogenic: The process itself is a mixture of multiple colling and pressurizing steps of the flue gas to the point where CO2 sublimates and/or condenses out of the mixture. The cryogenic process works identically to a distillation process, whereby chemical compounds are separated by using the different temperatures at which compounds in a mixture change phase from gas to liquid. CO2 is frozen out of the mixture with other dry flue gas components.
- Membranes: This technology relies on a synthetic membrane through which desired chemical compounds are separated. The separation process is driven by a difference in pressure between the sides of the membranes. This difference in pressure is usually driven by compressors, and electricity is generally the only energy input required.
Depending on the project scope and objectives, captured CO2 may be transported via pipelines or other means to a suitable storage site. This could involve geological storage in underground formations such as depleted oil and gas reservoirs or saline aquifers.
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Carbon Capture FAQ
Most frequent questions and answers relating to carbon capture services.
With industrial processes being major contributors to greenhouse gas emissions, CCS technology offers a viable solution to capture CO2 emissions at the source, preventing their release into the atmosphere. By implementing CCS, companies not only reduce their environmental footprint but also demonstrate their commitment to responsible environmental stewardship, meeting the expectations of stakeholders, including customers, investors, and regulatory bodies.
Carbon capture technology has shown promise in effectively reducing carbon dioxide (CO2) emissions from various sources, including industrial processes and power generation. While its effectiveness can vary depending on factors such as the type of technology used, the characteristics of the emission source (mainly CO2 concentration), and operational conditions, carbon capture has demonstrated the potential to capture a significant portion of CO2 emissions.
The energy sector, including power plants fueled by coal, natural gas, cement and biomass, is a prominent adopter of carbon capture technology due to its significant CO2 emissions. Numerous industries are actively implementing carbon capture technology as part of their efforts to reduce greenhouse gas emissions.
WHP and carbon capture systems can be colocated using the same heat or emission source. The WHP system will take heat from the highest temperature of the stream, but the system will be sized to leave heat required by the carbon capture plant. WHP will also partially or completely provide the electricity required by the carbon capture system.
Minimum CO2 concentration in the exhaust gas can be as low as 4%mol, but ideal concentrations are around 10%mol.