Review
Engineering, Environmental
Jessica Godin, Weizao Liu, Shan Ren, Chunbao Charles Xu
Summary: This review explores the current state of carbon capture and utilization technologies, discussing various separation techniques and utilization pathways for CO2, such as conversion to fuels and chemicals. Conversion of CO2 to synthetic fuels appears to be a promising pathway for scaling up carbon capture technologies.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Review
Environmental Sciences
Xin Wang, Zhuo Yin, Jielai Chen, Jing Liu
Summary: This paper investigates the carbon utilization strategies of phytoplankton, which are categorized into carbon acquisition, carbon metabolism, and carbon emission. The carbon acquisition strategy determines the carbon uptake rate, the carbon metabolism strategy influences their carbon fixation potential, and the carbon emission strategy determines the net carbon fixation. Understanding these strategies is important for wastewater treatment technologies, algal greenhouse gas fixation, and assessment of greenhouse gas sources and sinks in natural water bodies.
Review
Chemistry, Multidisciplinary
Friday O. Ochedi, Jianglong Yu, Hai Yu, Yangxian Liu, Arshad Hussain
Summary: Anthropogenic emissions of greenhouse gases lead to global warming, ocean acidification, polar ice melting, sea level rise, droughts, and hurricanes, threatening human health and the global economy. To combat this, cost-effective technologies for CO(2) capture are necessary. Current research focuses on developing more economical, effective, green, and sustainable technologies for CO(2) capture. Various methods based on solutions, solvents, and processes have been explored to enhance CO(2) absorption performance, with a particular interest in incorporating membrane and microencapsulation technologies to improve absorption selectivity.
ENVIRONMENTAL CHEMISTRY LETTERS
(2021)
Article
Green & Sustainable Science & Technology
Kehua Wang, Toyohiko Nakakubo
Summary: The sewage sludge recycling strategy in Japan is shifting towards energy utilization. Energy conversion technologies are being favored over high-temperature incineration for dewatered sludge treatment. The presence of digestion tanks significantly impacts the efficiency of energy conversion technologies in sewage sludge, highlighting the importance of choosing the right system for optimal results.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Chemical
Ana Gabriela Romero-Garcia, Carolina Mora-Morales, Juan Pablo Chargoy-Amador, Nelly Ramirez-Corona, Eduardo Sanchez-Ramirez, Juan Gabriel Segovia-Hernandez
Summary: This study evaluated the environmental impact of coupling an optimized CO2 capture plant to an electric power generation plant, considering different fuels and operating scenarios. The results showed that biogas was the best option for capture in the scenario with a constant fuel flow, while non-associated gas was the most promising alternative in the scenario with constant energy demand.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2022)
Review
Engineering, Environmental
Mohammad Yusuf, Hussameldin Ibrahim
Summary: This review highlights the latest trends in carbon capture, utilization, and storage techniques. The recent advances in different carbon capture techniques, as well as the importance of addressing the global CO2 emission and climate change, are discussed. Various CO2 utilization techniques and storage methods are emphasized, with DAC technique showing the most potential for future CO2 capture and utilization.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Biology
Anne R. Guadagnin, Joao P. Matiello, Rafael S. Ribeiro, Luiz G. R. Pereira, Fernanda S. Machado, Thierry R. Tomich, Mariana M. Campos, Guilherme Heisler, Vivian Fischer
Summary: Infrared thermography (IRT) is a non-invasive and efficient tool to detect changes in body surface temperature, which is directly related to energy loss in animals. This study aimed to correlate skin temperature measured by IRT with heat production and methane emission in lactating Holstein and crossbred cows. The results showed significant correlations between IRT and methane emission as well as heat production in both breeds.
JOURNAL OF THERMAL BIOLOGY
(2023)
Review
Green & Sustainable Science & Technology
Fares Almomani, Amera Abdelbar, Sophia Ghanimeh
Summary: Excessive dependence on fossil fuels leads to increased GHG emissions and carbon levels, causing climate changes. This can be reversed through carbon capture and storage (CCS) or carbon capture and utilize (CCU) technologies. Among CCU methods, the biological conversion of CO2 (BioCon(CO2)) into valuable chemicals has gained attention. This review focuses on recent advances in CO2 utilization technology, particularly BioCon(CO2), discussing theoretical background, technical drivers, challenges, setbacks, and implications for future improvements. While upscaling algae-based BioCon(CO2) faces operational and financial challenges, bioconversion via bacteria and genetically engineered cyanobacterial shows promise due to efficiency and flexibility.
Article
Engineering, Environmental
Xiaocheng Hu, J. M. Tom Pierce, Tim Taylor, Karyn Morrissey
Summary: The UK National Health Service aims to achieve net zero carbon emissions by 2050, with a focus on reducing the carbon footprint of inhalational anaesthetic gases (IAGs). Research suggests that using oxygen/air mix as the carrier gas while applying a vapour capture technology can minimize the carbon footprint of IAGs, making the carbon footprint of sevoflurane similar to that of propofol. This study supports reducing the use of nitrous oxide and adopting vapour capture technologies to further decrease the carbon footprint of IAGs.
RESOURCES CONSERVATION AND RECYCLING
(2021)
Article
Nuclear Science & Technology
Carlos E. Velasquez, Fidellis B. G. L. E. Estanislau, Antonella L. Costa, Maria Auxiliadora F. Veloso, Claubia Pereira
Summary: Nuclear energy is expected to play a crucial role in the decarbonization of energy systems worldwide, with reprocessing being a favorable option for new nuclear plants in the UK, and Canada advised to gradually increase its nuclear energy capacity.
PROGRESS IN NUCLEAR ENERGY
(2021)
Article
Marine & Freshwater Biology
Michael J. Jeffries, Peter J. Gilbert, Scott Taylor, David A. Cooke, Michael E. Deary
Summary: Ponds, despite their small size, are globally distributed and play a crucial role in supporting aquatic biodiversity and ecosystem functions. However, the stocks of organic carbon in pond sediments and their relationship with greenhouse gas fluxes remain uncertain.
Article
Engineering, Environmental
Wenjun Shi, Yan Ru Fang, Yuyang Chang, Guang Hui Xie
Summary: Crop straw management is a major issue in China's agriculture sector, with the environmental impact of straw utilization not being comprehensively assessed. Through data collection and analysis, our study found that straw utilization has shifted from open burning to retaining in fields over the years, resulting in significant greenhouse gas emissions. We propose that developing bioenergy can effectively mitigate these emissions and achieve sustainable utilization of crop straw.
RESOURCES CONSERVATION AND RECYCLING
(2023)
Article
Chemistry, Multidisciplinary
Eunji Yoo, Uisung Lee, Guiyan Zang, Pingping Sun, Amgad Elgowainy, Michael Wang
Summary: This paper proposes a simpler approach to calculate and evaluate the carbon intensity (CI) of CCU products (e-fuel), avoiding complex calculations and allocating the burden of CO2 capturing process to CO2 feedstock supplying the CCU production process.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Engineering, Environmental
Michelle Ahlen, Aleksander Jaworski, Maria Stromme, Ocean Cheung
Summary: Mixed-linker ZIF-7-8s constructed from varying amounts of bIm and mIm linkers were synthesized to selectively adsorb CO2 or SF6 with enhanced uptake capacity. Both CO2 and SF6 were found to be physisorbed on the ZIF-7-8 materials, with adsorption kinetics described by pseudo-second order kinetics and diffusion controlled by a mixture of mechanisms.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Robert Sroufe, Alec Watts
Summary: This study examines the decarbonization of the agriculture industry in the US through scenario planning, identifying drivers of change and presenting four plausible scenarios. It calls for action from decision makers to shift the industry onto a different path and suggests more research on emission policies, valuing CO2 emissions, and decarbonization strategies across industries.
RESOURCES CONSERVATION AND RECYCLING
(2022)