چکیده مقاله
This review explores how Direct Air Capture DAC technology can reduce CO₂ emissions in urbanareas, focusing on the sorbents that enable this process DAC operates similarly to plants'photosynthesis by capturing CO₂ from the atmosphere This technology is especially beneficial incities, where emissions are significantly high due to vehicles and industrial activities For DAC to beeffective and scalable, it is crucial to identify suitable sorbents that can efficiently trap and concentrateCO₂ The review draws from various scientific sources to examine liquid and solid sorbents, includingalkaline solutions, amine based solvents, metal complexes, activated carbon, zeolites, and metalorganicframeworks MOFs Each sorbent's strengths and limitations are discussed to understand itseffectiveness in DAC applications Liquid sorbents, such as those based on alkaline solutions and amines, capture CO₂ well but havedrawbacks like high energy requirements for regeneration, corrosion issues, and potentialenvironmental impacts In contrast, solid sorbents, including activated carbon and MOFs, tend to bemore energy efficient during regeneration and demonstrate strong CO₂ trapping capabilities, althoughthey may be sensitive to moisture Recent advances in sorbent design, including surface modificationsand composite materials, hold promise for further enhancing performance Conclusively, DAC shows significant potential for lowering CO₂ levels in cities; however, technicaland financial challenges must be addressed for large scale implementation Continued research isessential, and with further innovation, DAC could become a vital tool in combating climate change
کلیدواژهها
نویسندگان
Alireza Rezaee
M Sc in Civil Engineering Environment, Civil Engineering Faculty, K N Toosi University ofTechnology,
Maryam Razavi Beni
Department of Applied Chemistry, Faculty of Science, K N Toosi University of Technology
Mohamad Reza Sabour
Associate professor, Civil Engineering Faculty, K N Toosi University of Technology,
شیوه ارجاع
Rezaee, Alireza and Razavi Beni, Maryam and Sabour, Mohamad Reza,1403,Application of sorbents in DAC technology for urbanCO2 emission reduction; a review,Second International Conference on applied researches in civil engineering, architecture and urban planning
ارائهشده در
مجموعه مقالات دومین کنفرانس بین المللی تحقیقات پیشرفته در مهندسی عمران، معماری و شهرسازی20 آبان 1403