Carbon dioxide capture from gas stream sources with a novel water circulation-based method. Verification, validation, and optimization of a simulation model of the process method.
Thesis event information
Date and time of the thesis defence
Place of the thesis defence
University of Oulu, Linnanmaa campus, auditorium L10
Topic of the dissertation
Carbon dioxide capture from gas stream sources with a novel water circulation-based method. Verification, validation, and optimization of a simulation model of the process method.
Doctoral candidate
Master of science in chemical and wood processing technology Teijo Linnanen
Faculty and unit
University of Oulu Graduate School, Faculty of Technology, Environmental and Chemical Engineering
Subject of study
Process Engineering
Opponent
Docent Pekka Oinas, Aalto University, Chemical and Metallurgical Engineering
Custos
Docent Hannu Kuopanportti, University of Oulu
Environmentally Friendly Method for Carbon Dioxide Capture and Utilization in Industry
The dissertation presents an innovative water circulation-based CO2-capture method for separating carbon dioxide from industrial gas streams and enriching it to a high concentration. This energy-efficient method enables the clean capture of carbon dioxide without chemicals, improving the further utilization of the captured carbon dioxide.
The aim of the research was to determine the competitiveness of the method in separating carbon dioxide from various industrial gas streams for the further utilization of the captured carbon dioxide. The method is well-suited for capturing carbon dioxide from flue and process gases that contain more than 10% carbon dioxide by volume. The carbon dioxide captured from these gas streams can be enriched to over 95% concentration in an energy-efficient manner using the method.
To verify the simulation results of the method, the research visually compared the modeling result graphs produced by two different simulation software. The comparison examined the dependencies of CO2 capture amount, capture rate, product gas concentration, and specific energy consumption, calculated through simulation, under different process conditions and with varying feed gas carbon dioxide concentrations (13–70 volume percent).
The simulated results were also compared with measurement values from long-term trial runs. Within the measured operating range, these results confirm the findings from the simulations. Additionally, practical trial run data were used to evaluate the purification of harmful gases contained in flue gases for the further utilization of the captured carbon dioxide.
The research provides significant information on the development of a novel carbon dioxide capture method and its practical applicability in industry. The results support the development of more environmentally friendly and energy-efficient methods for carbon dioxide capture and utilization in the future.
The aim of the research was to determine the competitiveness of the method in separating carbon dioxide from various industrial gas streams for the further utilization of the captured carbon dioxide. The method is well-suited for capturing carbon dioxide from flue and process gases that contain more than 10% carbon dioxide by volume. The carbon dioxide captured from these gas streams can be enriched to over 95% concentration in an energy-efficient manner using the method.
To verify the simulation results of the method, the research visually compared the modeling result graphs produced by two different simulation software. The comparison examined the dependencies of CO2 capture amount, capture rate, product gas concentration, and specific energy consumption, calculated through simulation, under different process conditions and with varying feed gas carbon dioxide concentrations (13–70 volume percent).
The simulated results were also compared with measurement values from long-term trial runs. Within the measured operating range, these results confirm the findings from the simulations. Additionally, practical trial run data were used to evaluate the purification of harmful gases contained in flue gases for the further utilization of the captured carbon dioxide.
The research provides significant information on the development of a novel carbon dioxide capture method and its practical applicability in industry. The results support the development of more environmentally friendly and energy-efficient methods for carbon dioxide capture and utilization in the future.
Last updated: 19.12.2024