Article
Engineering, Environmental
David Quiroz, Jonah M. Greene, Braden J. Limb, Jason C. Quinn
Summary: This study uses validated biophysical and sustainability modeling to identify the optimal global productivity potential, environmental impacts, and economic viability of algal biofuels.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Engineering, Chemical
Tianduo Peng, Lei Ren, Ershun Du, Xunmin Ou, Xiaoyu Yan
Summary: Aluminum production in China contributes to significant energy consumption and greenhouse gas emissions. The study highlights the need for energy saving measures and promoting the development of the recycled aluminum industry. Policy recommendations should consider the regional differences among provinces.
Article
Multidisciplinary Sciences
Nina Khanna, Hongyou Lu, David Fridley, Nan Zhou
Summary: China needs to significantly reduce CO2 emissions from heavy-duty trucks, and deploying battery electric and fuel-cell trucks starting in 2020 and 2035 respectively could achieve the largest emissions reduction by 2050. Near-term strategies such as improving efficiency and switching to liquefied natural gas could also halve current diesel consumption and CO2 emissions by 2050. The results highlight the importance of a mix of near- and long-term policy and technology options for decarbonizing China's heavy-duty trucks.
SCIENTIFIC REPORTS
(2021)
Article
Multidisciplinary Sciences
Maryann R. Sargent, Cody Floerchinger, Kathryn McKain, John Budney, Elaine W. Gottlieb, Lucy R. Hutyra, Joseph Rudek, Steven C. Wofsy
Summary: The top-down study on methane emissions from natural gas in the Boston urban region over 8 years showed no significant trend in the loss rate, with consumption-driven losses potentially accounting for missing emissions in inventories. Comparisons with estimates from six US cities suggest that distribution and end use losses from natural gas supply chain may contribute significantly to total emissions, indicating a need for future policy action.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Green & Sustainable Science & Technology
Jack Lynch, Andre Cabrera Serrenho
Summary: This study uses dynamic stock and device energy consumption models to predict the energy demand of seven devices in the UK up to 2050. It finds that device size is the most significant variable and reducing device size or ownership rates can lead to significant energy savings. Almost all EEE devices have the potential to reduce their energy demand by 30% by 2050, except for laptops and TVs.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Environmental
Ryan E. Liu, Arvind P. Ravikumar, Xiaotao Tony Bi, Siduo Zhang, Yuhao Nie, Adam Brandt, Joule A. Bergerson
Summary: Despite limited understanding of Western Canadian greenhouse gas (GHG) emissions, a case study on Seven Generation Energy Ltd.'s operations shows that company-provided data closes most of the gaps. It is recommended to collect and present more detailed government-reported data to improve GHG emissions intensity estimates and understand potential mitigation strategies.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Thermodynamics
Muhammad Usman, Atif Jahanger, Muhammad Sohail Amjad Makhdum, Daniel Balsalobre-Lorente, Adnan Bashir
Summary: This study analyzes the impact of financial development, natural resources, globalization, and energy consumption on greenhouse gas emissions and economic growth in Arctic countries, and offers policy recommendations.
Article
Energy & Fuels
Carisse Geronimo, Sintana E. Vergara, Charles Chamberlin, Kevin Fingerman
Summary: This study investigates the effects of temperature, oxygen concentration, and moisture content on greenhouse gas emissions during the storage phase of woody biomass. The findings suggest that woody biomass storage conditions promote anaerobic decomposition and that temperature is a key driver of methane emissions.
Article
Chemistry, Multidisciplinary
Serang Kwon, Jieun Kang, Beomhui Lee, Soonwook Hong, Yongseok Jeon, Moonsoo Bak, Seong-kyun Im
Summary: Incineration, pyrolysis, and gasification are necessary methods for reducing landfill volume and recovering energy from plastic waste, but they result in significant carbon emissions. By modeling various energy recovery systems, we find that current plastic waste-to-energy practices will greatly impact carbon neutrality. The CO2 emissions from plastic waste-to-energy systems, even with carbon capture and storage, are higher per unit of power generated compared to current fossil fuel-based power systems. Power generation from plastic waste will increase significantly by 2050, thus requiring technologies to achieve carbon neutrality.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Multidisciplinary Sciences
Laura Lander, Tom Cleaver, Mohammad Ali Rajaeifar, Viet Nguyen-Tien, Robert J. R. Elliott, Oliver Heidrich, Emma Kendrick, Jacqueline Sophie Edge, Gregory Offer
Summary: The study presents a comprehensive techno-economic model to compare recycling locations and processes, providing a key tool for cost optimization in the global battery recycling economy. It shows that recycling can be economically viable, with profitability ranging depending on factors such as transport distances, wages, pack design, and recycling methods. In-country recycling is recommended to reduce emissions and transportation costs and ensure a secure materials supply chain.
Article
Green & Sustainable Science & Technology
Mahjoob NoParast, Milad Hematian, Ali Ashrafian, Mohammad Javad Taheri Amiri, Hessam AzariJafari
Summary: The study proposed a sustainable closed-loop supply chain (SCLSC) model to reduce the environmental impacts of concrete manufacturing. The model, based on a multi-objective approach, includes sub-systems like customers, suppliers, manufacturing, and recycling stations, and uses a non-dominated sorting genetic algorithm to solve solutions. The research showed that using more recycled aggregates can lower excavation of quarries, but transportation distance determines the choice of green cement incorporation.
SUSTAINABLE PRODUCTION AND CONSUMPTION
(2021)
Article
Biotechnology & Applied Microbiology
Christina E. Canter, Kaitlyn Zolton, Jules F. Cacho, M. Cristina Negri, Colleen R. Zumpf, John J. Quinn
Summary: This study evaluated the greenhouse gas emissions of growing shrub willow on marginal lands in the Indian Creek watershed in Illinois using life-cycle analysis (LCA). The emissions were lowest for the landscape single subfield (LSSF) scenario. Willow yield was found to be the most sensitive factor influencing emissions.
BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR
(2022)
Article
Energy & Fuels
Davide Bonalumi, Mehrshad Kolahchian Tabrizi
Summary: This study proposes a unified life cycle inventory for evaluating the global warming potential impact of producing lithium-ion power batteries in China. Results show that the overall GWP for producing 1 kWh of battery energy storage can vary significantly depending on different factors, and the GWP impact of different NMC cathode chemistries' production is discussed.
Article
Energy & Fuels
Ala Eddine Aoun, Hui Pu, Youcef Khetib, Mohamed Cherif Ben Ameur
Summary: Through research and evaluation in the Bakken region, it has been found that gas re-injection is an economically feasible method to reduce flaring, increase oil recovery, and meet the North Dakota Industrial Commission's requirements.
Article
Environmental Sciences
Zhen Zhu, Chuntian Lu
Summary: This paper evaluates the greenhouse gas emissions of shared electric bicycles (SEB) using life cycle assessment and finds that the emissions in the production and operation stages are 379.6173 kg CO2-eq and 183.4663 kg CO2-eq, respectively. However, the use stage results in a reduction of 1049.8374 kg CO2-eq, resulting in a net GHG reduction of 487.3923 kg CO2-eq throughout the SEB's life cycle. Additionally, non-recyclable parts of the SEB take 48 years to degrade in landfills.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Agricultural Engineering
G. Grasa, I. Martinez, R. Murillo
Summary: Gasification kinetics of six chars from residual origin were studied under relatively low temperature, low CO2, and high H2O partial pressures. The Random Pore Model (RPM) showed the best fit to experimental results, but the selection of the reaction model depended on the ash composition, specifically the presence of alkali and alkaline earth metals. Chars with ash content higher than 30% wt. were modeled with the RPM model, while chars with the highest K/Si ratio required modified versions of the RPM to accurately predict reaction rates. Textural properties played a key role in determining reaction parameters, such as the pre-exponential factor and activation energy, for chars with similar ash content and composition.
BIOMASS & BIOENERGY
(2024)
Review
Agricultural Engineering
V. Godvin Sharmila, Surya Prakash Shanmugavel, J. Rajesh Banu
Summary: Proper treatment and disposal of biomass waste is crucial to prevent environmental deposition and its negative impacts. Biofuel has emerged as a potential alternative to fossil fuels, reducing carbon emissions and meeting global energy demands. This review examines different biomass waste conversion techniques and explores the production of biofuels with zero carbon emissions. Research on anaerobic treatment, metabolic engineering, and artificial intelligence has been conducted to enhance biofuel production efficiency.
BIOMASS & BIOENERGY
(2024)
Review
Agricultural Engineering
Selvakumar Periyasamy, Adane Asefa Adego, P. Senthil Kumar, G. G. Desta, T. Zelalem, V. Karthik, J. Beula Isabel, Mani Jayakumar, Venkatesa Prabhu Sundramurthy, Gayathri Rangasamy
Summary: Valorizing agricultural waste into valuable products is crucial for environmental protection and bioeconomy advancement. Preprocessing of agricultural waste is a critical step to convert free carbohydrate molecules for final conversion, and factors such as biomass nature, feed loading, pH, temperature, and time influence the process. This review provides comprehensive information on agricultural waste availability, preprocessing techniques, and factors influencing performance.
BIOMASS & BIOENERGY
(2024)
Article
Agricultural Engineering
Aqueel Ahmad, Ashok Kumar Yadav, Achhaibar Singh, Dinesh Kumar Singh
Summary: The study focuses on predicting and optimizing the yield of biogas production in an anaerobic digester using co-digestion. Experimental data was used to develop a machine learning-based prognostic model, and the Response Surface Methodology (RSM) was employed to optimize the parameters. The results demonstrate that RSM coupled with machine learning is an effective technique for modeling, predicting, and optimizing biogas production yield.
BIOMASS & BIOENERGY
(2024)
Article
Agricultural Engineering
Yijing Zhong, Wenxiang Zhai, Xinli Wei
Summary: This paper studies the thermal stability and decomposition of cork materials with and without silica aerogel filler. The results show that the decomposition is inhibited and the pyrolysis is significantly reduced with the addition of silica aerogel. This finding suggests that silica aerogel-infused cork may be a promising raw material for biofuel production with reduced environmental pollution.
BIOMASS & BIOENERGY
(2024)