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Article
Energy & Fuels
Rahul Tiwari et al.
Summary: Given the rapid growth of the aviation sector, finding sustainable ways to meet the demand is crucial. Biojet fuels, considered more renewable and less polluting than traditional jet fuel, have the potential to be an effective substitute, but the high price of feedstock and limited supply are the main obstacles to widespread adoption.
Article
Energy & Fuels
Lungang Chen et al.
Summary: A method for converting biomass-derived furfural and levulinic acid into long-chain hydrocarbon fuels was developed. A C20 oxygenate with 95% mol yield was synthesized through condensation-polymerization reactions catalyzed by NaOH. Various techniques were used to verify the chemical structure of the C20 oxygenate. The condensation mixture was then subjected to hydrodeoxygenation reaction using a catalytic system of Pd/C and H3PO4 in aqueous phase, resulting in a 57.1% weight yield of liquid fuel with main products of C12, C14, and C18 hydrocarbons. The carbon and hydrogen mass percent in the fuel were significantly improved to 95.91%, and the high heat value increased to 47.04 MJ/kg.
Article
Chemistry, Physical
Sunu Herwi Pranolo et al.
Summary: This research presents a palm kernel shell gasification system for producing carbon-neutral fuel gas. The fuel gas can be utilized for heat or electricity generation. An assessment of environmental impacts reveals that the feedstock contributes most to global warming and eutrophication potential, while electricity dominates the acidification potential. The study recommends operating the system at a lower equivalent ratio to reduce environmental impacts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Green & Sustainable Science & Technology
Xiao Wang et al.
Summary: China's increasing bioethanol production capacity makes the conversion of ethanol-to-jet fuel (ETJ) promising. This study used process simulation to model two novel ETJ processes combining corn cob gasification, syngas-to-ethanol, and ethanol-to-jet fuel. Life cycle assessment (LCA) was performed to evaluate energy consumption and greenhouse gas emissions of ETJs in China. The results showed that the ETJ pathway with corn cob gasification plus fermentation had the lowest energy consumption and GHG emissions, with 370.05 KJ/MJ jet fuel and 31.66 gCO2eq/MJ jet fuel, respectively. Given the scarcity of life cycle assessments for ETJs in China, this study can assist policymakers in determining the path for China's sustainable aviation fuel (SAF) development.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Green & Sustainable Science & Technology
Giulia Zoppi et al.
Summary: Biofuels are considered as a strategy for decarbonizing the transport sector. In this study, the environmental impacts of a biorefinery integrating hydrothermal liquefaction (HTL) and aqueous phase reforming (APR) were assessed using the LCA methodology for the first time. Corn stover and a lignin-rich stream were evaluated as potential feedstocks. The results showed that HTL-APR technology can reduce greenhouse gas emissions by 37% compared to fossil diesel, further reduced to 80% when using green energy.
Review
Environmental Sciences
Arun Krishna Vuppaladadiyam et al.
Summary: The conversion of biomass into renewable value-added products has the potential to meet high energy demands, reduce greenhouse gas emissions, and exploit under-utilized resources. Techno-economic analysis (TEA) and life-cycle assessment (LCA) are important tools for evaluating the commercialization potential of biomass pyrolysis. It is crucial to consider both economic and environmental indicators to assess the performance and constraints of this technology. Additionally, the upstream and downstream processes play a significant role in understanding the life cycle impacts and overall potential of biomass pyrolysis systems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Agricultural Engineering
Yong Liu et al.
Summary: Aviation fuel, a high energy density fuel, is typically produced from refineries in the petroleum industry. The production of renewable aviation fuel from biomass helps alleviate the pressure of carbon emission regulations. This study utilized various operational processes to convert biomass, specifically corn stover, into aviation fuel. The resulting fuel has a low oxygen content, high heat value, and consists mainly of isoparaffins.
BIORESOURCE TECHNOLOGY
(2023)
Article
Thermodynamics
Sara Rajabi Hamedani et al.
Summary: This study conducted a comprehensive life cycle assessment (LCA) of small-scale biomass combined cooling, heating, and power (CCHP) technologies, comparing configurations based on sustainability indicators, energy payback time, and conflicting objectives. The results showed that the gasifier coupled with the electric heat pump configuration was the most optimum due to higher energy profits and lower environmental costs.
Review
Green & Sustainable Science & Technology
Elissavet Emmanouilidou et al.
Summary: The aviation industry contributes 2% of anthropogenic greenhouse gas emissions and sustainable aviation fuels are essential for reducing these emissions. This study investigates the potential of producing sustainable aviation fuel from waste materials using current conversion technologies. The results suggest that catalytic hydro-processing of waste lipid feedstocks is the most commonly used method for bio-jet fuel production. Gasification combined with Fischer-Tropsch and alcohol-to-jet processes show promise for sustainable aviation fuel production. However, further research and development are needed before these technologies can be commercialized.
Review
Environmental Sciences
L. El Joumri et al.
Summary: Olive oil is an important component of the Mediterranean diet, but its production has negative environmental impacts. The life cycle assessment (LCA) methodology, advocated by ISO 14040 and ISO 14044, can help mitigate these impacts and achieve sustainable production.
ENVIRONMENTAL DEVELOPMENT
(2023)
Article
Energy & Fuels
Xiang Zheng et al.
Summary: This study conducted a comprehensive comparison between the hydrogenation upgrading process and the supercritical ethanol upgrading process for liquid biofuel based on fast pyrolysis of cornstalk, using techno-economic analysis (TEA) and life cycle assessment (LCA) from the perspectives of economic and environment. The TEA results showed that the minimum fuel selling prices (MFSP) of FP-HU and FP-SU were 0.0417 $/MJ and 0.0383 $/MJ. The LCA results showed that the ADP, COD, and GWP values of FP-HU were lower compared with FP-SU. Compared to conventional diesel, the ADP, GWP, and RI of FP-HU and FP-SU decreased significantly.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Review
Engineering, Chemical
Rongzhan Fu et al.
Summary: To meet growing energy demands, renewable biofuels and chemicals are important, but face challenges due to economic viability. Techno-economic assessment and life cycle assessment are useful tools to evaluate and improve biofuel and chemical production. This review summarizes the progress in these assessments and highlights their impact on production development.
GREEN CHEMICAL ENGINEERING
(2023)
Article
Green & Sustainable Science & Technology
Jessica Chaparro-Garnica et al.
Summary: Life Cycle Assessment (LCA) is used to eco-design the H3PO4-assisted hydrothermal carbonization (HTC) process for converting biomass residue into high-value products. The study found that electricity consumption contributes the most to the environmental impacts, such as climate change and acidification, while the main chemical used in the functionalization stage contributes to human toxicity and marine eutrophication. Furthermore, potential improvements were identified through different scenarios, showing a reduction potential compared to the reference scenario.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Thermodynamics
Janakan S. Saral et al.
Summary: This study analyzes the techno-economic and life cycle of producing renewable fuels from Spirulina platensis using hydrothermal liquefaction. Different pathways are considered, including the utilization of aqueous phase from HTL by catalytic hydrothermal gasification (CHG) and anaerobic digestion (AD), as well as the production of C-Phycocyanin (C-PC) as a co-product. The results show that the C-PC extraction pathway has the lowest price and highest greenhouse gas emissions.
ENERGY CONVERSION AND MANAGEMENT-X
(2022)
Article
Thermodynamics
Yoyon Wahyono et al.
Summary: The environmental impact of multi-feedstock biodiesel production is greater during the plantation stage compared to palm oil biodiesel production. This is mainly due to the use of fertilisers in agriculture. Cultivating multiple crops is more detrimental to the environment than cultivating only oil palm, as it requires more fertilisers. Therefore, the use of soybean, canola, and sunflower to produce multi-feedstock biodiesel is not recommended.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Energy & Fuels
Yanbing Liu et al.
Summary: In this study, a Life Cycle Cost (LCC) integrated with a life cycle assessment (LCA) model to comprehensively evaluate the energy, environment, and economic impacts of Jatropha biodiesel production in China. The study found that fertilizer utilization and methanol production significantly contribute to energy consumption. The production of Jatropha biodiesel emits pollutants including CO2, dust, NOx, SO2, CH4, and CO. Improved measures are urgently needed to reduce NOx and dust emissions. The cost of Jatropha biodiesel is mainly influenced by Jatropha oil cost and human input.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Thermodynamics
Emiliano Jozami et al.
Summary: One of the main initiatives brought by COP26 in the context of global warming is the global transition to green energy. This study analyzed the bioenergetic utilization of Spartina argentinensis and found that it could significantly contribute to climate change mitigation by reducing carbon emissions and meeting energy demands.
Article
Green & Sustainable Science & Technology
Elena Rossi et al.
Summary: This study compares the environmental impacts of a conventional management strategy to recover biomethane and compost with a dry anaerobic biorefinery recovering biomethane, fertilizers, and PHAs from organic waste. The analysis reveals that the conventional strategy outperforms the novel approach in terms of environmental performance. Among the different methods for PHA recovery, extraction with ethyl acetate is the most environmentally sustainable and promising technique.
JOURNAL OF CLEANER PRODUCTION
(2022)
Review
Engineering, Environmental
Nicole Bamber et al.
Summary: This manuscript reviews LCA studies of organic field crops and aims to identify best practices in collecting life cycle inventory data. Based on the analysis of previous studies, recommendations are provided for data collection and model selection for future research.
RESOURCES CONSERVATION AND RECYCLING
(2022)
Article
Thermodynamics
Jingwen Hao et al.
Summary: The study proposed an aqueous conversion process utilizing part of lignin to generate hydrogen, which significantly increased energy and exergy efficiencies compared to the traditional process of burning all lignin as fuel. Additionally, improving the recovery rate of methanol and reducing the consumption of acid and base chemicals can enhance the cumulative exergy efficiency and renewability of bio-jet fuel production. Sensitivity analyses showed that the conversion efficiency of platform chemicals to bio-jet fuel and the consumption of stripping steam have a significant impact on energy and exergy efficiencies.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Review
Agricultural Engineering
Zeba Usmani et al.
Summary: The growing concerns over biomass waste have led to discussions on their sustainable utilization for energy generation and production of value-added products; Biotechnological advancements have provided important avenues for green pretreatment and conversion of waste materials, but the environmental impact and overall cost optimization remain crucial considerations.
BIORESOURCE TECHNOLOGY
(2021)
Review
Green & Sustainable Science & Technology
Mortaza Aghbashlo et al.
Summary: Bioenergy systems are expected to expand in the coming decades to address energy security and environmental challenges, but they must be environmentally superior to conventional counterparts. Life cycle assessment is a widely used methodology, while the integration of LCA with exergy offers a powerful tool for environmental sustainability assessment of bioenergy systems.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Energy & Fuels
Haoran Sun et al.
Summary: A comprehensive life cycle assessment was conducted to compare the environmental performance of fermentation, pyrolysis, and gasification systems converting corn stover to biofuels. Fermentation performs poorly on almost all environmental impact categories, while pyrolysis has the highest equivalent CO2 emissions. There are similar regularities in the environmental performance of the three systems, with acidification potential being the most important impact category, and biofuel yield being the most sensitive factor to nearly all impact categories.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Green & Sustainable Science & Technology
Eric Alberto Ocampo Batlle et al.
Summary: This study evaluates and compares the environmental benefits, economic feasibility, and energy balance of producing bioenergy from palm and sugarcane within integrated biorefinery. Results show significant reductions in global warming impact and improved energy rates in the improved scenario, with increased overall efficiency and energy output per ton of raw material processed. Integration is economically feasible and can be further enhanced through fiscal incentives and improvements in conversion technologies.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Energy & Fuels
Weiting Liao et al.
Article
Chemistry, Multidisciplinary
Raaj R. Bora et al.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Green & Sustainable Science & Technology
Bartolomeus Haeussling Loewgren et al.
Article
Thermodynamics
F. J. Gutierrez Ortiz et al.
Review
Multidisciplinary Sciences
Harish K. Jeswani et al.
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2020)
Article
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Yang Yang et al.
JOURNAL OF CLEANER PRODUCTION
(2020)
Article
Agricultural Engineering
Cornelius Schonnenbeck et al.
BIORESOURCE TECHNOLOGY
(2019)
Review
Thermodynamics
Elaine Siew Kuan Why et al.
ENERGY CONVERSION AND MANAGEMENT
(2019)
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Gabrielle Beaudry et al.
BIOMASS CONVERSION AND BIOREFINERY
(2018)
Review
Chemistry, Multidisciplinary
Frederic Delbecq et al.
FRONTIERS IN CHEMISTRY
(2018)
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Yuping Li et al.
Article
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Bin Li et al.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2017)
Article
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Bin Li et al.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2017)
Review
Green & Sustainable Science & Technology
Feng Cheng et al.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2017)
Article
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Pengru Chen et al.
BIORESOURCE TECHNOLOGY
(2017)
Review
Agricultural Engineering
Yuping Li et al.
BIOMASS & BIOENERGY
(2015)
Article
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Tiejun Wang et al.
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Agricultural Engineering
Xiaowei Liu et al.
BIORESOURCE TECHNOLOGY
(2013)
Review
Green & Sustainable Science & Technology
Pooya Azadi et al.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2013)
Review
Green & Sustainable Science & Technology
Roberto Turconi et al.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2013)
Article
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Prapan Kuchonthara et al.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2008)
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B. Girisuta et al.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2007)
Article
Environmental Sciences
SC Lo et al.
SCIENCE OF THE TOTAL ENVIRONMENT
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