Article
Biotechnology & Applied Microbiology
Zhen Wang, Zhitao Han, Gang Liu, Zelu Zhou, Xi Wu, Song Zhou, Xinxiang Pan
Summary: In this study, the CO2 capture performance of sodium carbonate solution was improved by adding the organic additive TBAB, resulting in a significant increase in the CO2 absorption rate and a reduction in regeneration heat duty. This research contributes to the development of post-combustion CO2 capture technology.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Chemistry, Applied
Sriram Valluri, S. K. Kawatra
Summary: This study experimentally investigated the impact of different reagents on CO2 capture efficiency, finding that the use of frother-enhanced sodium carbonate solution can significantly improve CO2 capture efficiency.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Enrique Medina-Martos, Jose-Luis Galvez-Martos, Jorge Almarza, Carlos Lirio, Diego Iribarren, Antonio Valente, Javier Dufour
Summary: Using solid sodium hydroxide as a CO2 capture agent can lead to the production of carbonates with low or negative carbon footprint. However, the high cost and carbon footprint of the electrolytic production of sodium hydroxide pose main barriers. Nonetheless, in future carbon capture scenarios, utilizing renewable energy sources and the resulting sodium carbonate could result in net emissions reductions and potential cost savings.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Biotechnology & Applied Microbiology
Valerie Garcia-Negron, Matthew J. Toht
Summary: This study demonstrates the viability of utilizing CO2 to produce Na2CO3 for efficient pretreatment of corn stover biomass. The pretreated biomass showed higher cellulose content and lower lignin content, resulting in higher and more stable glucose yields during enzymatic hydrolysis. The use of cellulase-rich enzyme solution further increased sugar concentrations.
FERMENTATION-BASEL
(2022)
Article
Engineering, Chemical
Bingbing Zhao, Kunfeng Zhao, Yuan Cheng, Simin Huang, Jiahao Xu, Yun Xu, Kui He, Dechun Huang, Hongliang Qian, Wei Chen
Summary: Excessive CO2 emissions from fossil fuel combustion have significant impacts on the environment and contribute to climate disasters. By encapsulating deep eutectic solvents (CU) and carbonic anhydrase (CA) in microcapsules using microfluidics and thermal crosslinking, high capture performance of CO2 is achieved.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Austin Lieber, Marina Hildebrandt, Shanna-Leigh Davidson, Joanna Rivero, Huda Usman, Tagbo H. R. Niepa, Katherine Hornbostel
Summary: Direct ocean carbon capture (DOC) is a new form of negative emissions technology that needs to be characterized and compared to well-established carbon capture methods. In this study, the feasibility of using microencapsulated solvents for DOC and the extraction of CO2 from seawater using Na2CO3 capsules were assessed through lab-scale experimentation and modeling. The results validate the model and suggest optimal parameters for the capsule bed. However, the techno-economic assessment indicates that the cost of carbon capture using Na2CO3 capsules would be exorbitant, highlighting the need for further research to reduce system costs.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Wei Zhu, Bao-Qi Feng, Song Zhang, Juan Zhao, Xiao-Tian Kan, Yun-Lei Teng
Summary: Research suggests that alkali metal carbonate@carbon composites can efficiently produce methane at 450°C without a catalyst, with Li2CO3@carbon composite showing the best methanation performance among them.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Engineering, Environmental
Bao-Qi Feng, Han-Qing Chen, Chao Ping, Xiang Huang, Wen-Long Liu, Bao-Xia Dong, Yun-Lei Teng
Summary: The study shows that inert additive-doped CaO-based CO2 adsorbents can be synthesized in one pot by the mechanochemical method, producing methane instead of CO2 emission. The prepared CaO@C and CaO@MgO@C composites exhibit high CO2 adsorption capacity and superior cycling stability, with much lower activity losses after 30 cycles compared to conventional adsorbents. This work provides a novel, simple, solution-free, and sustainable strategy for synthesizing effective CaO-based CO2 adsorbents.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Chemical
Soheil Aghajanian, Harri Nieminen, Arto Laari, Tuomas Koiranen
Summary: This research successfully integrates a polypropylene hollow fiber membrane contactor-based CO2 absorption unit with a crystallization process to precipitate high-quality calcium carbonate, bypassing the need for costly energy regeneration. The integration of solid particle formation and CO2 mitigation technique is considered a potential post-combustion technology for carbon capture, utilization, and sequestration.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Environmental Sciences
Prinya Chindaprasirt, Chai Jaturapitakkul, Weerachart Tangchirapat, Peerapong Jitsangiam, Kamchai Nuithitikul, Ubolluk Rattanasak
Summary: This study examined the synthesis of CaCO3 from CCR solutions by capturing CO2 with the aid of triethanolamine (TEA) solutions. The results showed that TEA solutions primarily produced cubic calcite, while non-TEA solutions formed small and agglomerated spherical vaterite and cubic calcite particles. The CaCO3-filled epoxy composites exhibited higher compressive strength but reduced transparency. These findings provide guidelines for the application of CCR slurry filtrate and suggest the potential of CO2 gas combined with TEA solution for carbon-neutral manufacturing.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Chemistry, Applied
Janna V. Veselovskaya, Vladimir S. Derevschikov, Anton S. Shalygin, Dmitry A. Yatsenko
Summary: By impregnating porous zirconia aerogels with K2CO3, a series of composite materials were prepared, with the composite sorbent containing 23% K2CO3 demonstrating the highest CO2 absorption capacity. The study suggests that some of the K2CO3 loaded into zirconia mesopores do not actively participate in CO2 absorption and desorption processes.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Olga S. Zueva, Vladimir S. Rukhlov, Yuriy F. Zuev
Summary: The study specified the existing concepts of the ionic micelle structure and proposed a new methodological approach to analyze the reaction of micelle potential decay. The results showed good agreement between experimental and calculated values, indicating that the smallest hydrodynamic micelle size is determined by the outer Stern plane.
Article
Chemistry, Multidisciplinary
Abhishek Ratanpara, Alexander Shaw, Mallory Thomas, Rajesh N. Patel, Myeongsub Kim
Summary: This study evaluates the effectiveness of seawater-based MEA solutions with NiNPs as catalysts for CO2 capture, aiming to reduce MEA usage and eliminate the need for freshwater. In a microfluidic environment, seawater-based amine solutions showed comparable CO2 absorption to DI water, with faster absorption rates. Furthermore, the addition of NiNPs optimized CO2 absorption, confirming seawater as a potential solvent for industrial CO2 capture applications.
JOURNAL OF CO2 UTILIZATION
(2021)
Article
Chemistry, Physical
Craig W. Hargis, Irvin A. Chen, Martin Devenney, Miguel J. Fernandez, Ryan J. Gilliam, Ryan P. Thatcher
Summary: The novel calcium carbonate cement system developed utilizing carbon dioxide-containing flue gas and high-calcium industrial solid waste, shows high compressive strength, rapid curing at elevated temperatures, and lower density for building materials applications such as lightweight fiber cement board and aerated concrete.
Article
Chemistry, Multidisciplinary
Yingqiang Zhu, Puzhen Li, Xiantao Feng, Dongsheng Sun, Tianwen Fang, X. X. Zhu, Yali Zhang, Cuihua Li, Xin Jia
Summary: The article introduces an environmentally friendly aqueous system for reversible CO2 absorption and release, and demonstrates that applying absorbed CO2 as fertilizer around plants significantly increases plant growth and biomass formation.
JOURNAL OF CO2 UTILIZATION
(2021)