Article
Engineering, Environmental
Dong-Jun Lee, Minyoung Kim, Sungyup Jung, Young-Kwon Park, YuNa Jang, Yiu Fai Tsang, Hana Kim, Kyu-Hyun Park, Eilhann E. Kwon
Summary: A sustainable valorization platform for organic waste has yet to be fully developed. This study focuses on a new valorization route that converts food/agricultural waste to biodiesel using yellow mealworm larvae. The non-catalytic conversion process shows high tolerance against water and impurities, making it a promising method for biodiesel production.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Minyoung Kim, Dong-Jun Lee, Sungyup Jung, Scott X. Chang, Kun-Yi Andrew Lin, Amit Bhatnagar, Eilhann E. Kwon, Yiu Fai Tsang
Summary: The study focused on converting peanut waste into biofuels through a thermochemical process, using biochar derived from pyrolysis of the waste as a catalyst to enhance reaction kinetics and lower reaction temperature. Biochars produced at different temperatures were effective in transesterification of soybean oil, showing higher yields compared to conventional methods.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Energy & Fuels
Zongwu Xin, Guangtao Wei, Linye Zhang, Lei Gao, Zhongmin Li, Weiran Zhao
Summary: This work introduced a new method of partially hydrogenating FAMEs using sodium borohydride as hydrogen donor and Ni-La-B as catalyst to upgrade biodiesel. Under optimum conditions, high conversion ratio and good hydrogenation effect were achieved.
Article
Energy & Fuels
A. Saravanan, D. Yuvaraj, P. Senthil Kumar, S. Karishma, Gayathri Rangasamy
Summary: Considering the petroleum and fuel prices in India, there is a pressing need for alternative energy sources. Fossil fuels, the current sources of fuels, are depleting and emit harmful pollutants. Fish waste has been identified as a promising alternative for biogas and biodiesel production. This review explores the benefits and advantages of using fish waste for biofuel manufacturing.
Article
Chemistry, Analytical
Benan Inan, Anil Tevfik Kocer, Didem Balkanli Ozcimen
Summary: Recently, carbon-based solid acid catalysts have gained attention for biodiesel production. These catalysts can be produced from carbon-based materials, such as biomass wastes, to reduce costs and provide solid waste management. In this study, walnut shell, olive stone, and macroalgae were used to produce biochar-based solid acid catalyst for microalgal biodiesel production. The catalyst with the highest sulfonic acid density and preferable structural properties (from walnut shell carbonized and sulfonated) achieved a biodiesel yield of 82% under certain transesterification parameters. Stability tests also showed that the catalyst could be reused up to the 5th cycle. Overall, this study demonstrates a simple, cost-effective, and environmentally friendly approach for biodiesel production using low-cost feedstock and reusable catalyst.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Green & Sustainable Science & Technology
Miquele L. Padula, Arthur S. Romero, Dachamir Hotza, Murilo D. M. Innocentini, Maria E. G. Pinto, Augusto S. Pedrini, Evertan Rebelatto, Luiz Fernando B. Ribeiro, Guilherme Zin, J. Vladimir Oliveira, Marco Di Luccio
Summary: This study investigated the efficiency of microfiltration with a polymeric membrane for the dehydration of fatty acid ester mixtures. The modified membrane showed improved performance with higher fluxes and enhanced dehydration compared to the unmodified control membrane.
Article
Biotechnology & Applied Microbiology
L. Corredor, E. P. Barnhart, A. E. Parker, R. Gerlach, M. W. Fields
Summary: The study investigated the effects of temperature, nitrate concentration, pH buffer, and bicarbonate addition on biomass growth and lipid accumulation in the environmental alga PW95. Results showed that a combination of higher temperature and lower nitrate level was most favorable for biomass and lipid production.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2021)
Review
Energy & Fuels
Carsten Wedler, J. P. Martin Trusler
Summary: Biodiesel fuels are comprised of a mixture of different fatty acid esters, which have significant effects on combustion and storage. This study reviews the available experimental data on density and viscosity of fatty acid methyl, ethyl, and butyl esters and identifies gaps in the literature. The research includes 16 different esters from three ester families and provides an overview of generalized models for describing density and viscosity at elevated pressures.
Article
Chemistry, Physical
Warot Prasanseang, Kittisak Choojun, Yingyot Poo-arporn, Ai-Lin Huang, Yu-Chuan Lin, En Chen, Hsin-Hui Lee, Po-Wen Chung, Tawan Sooknoi
Summary: Selective hydrogenation of methyl palmitate to hexadecanol can be manipulated by tuning Cu+ species and Bronsted acid sites of copper phyllosilicate catalysts with K+ doping. The presence of K+ stabilizes Cu+ species and neutralizes BAS, enhancing catalyst stability and hexadecanol selectivity.
JOURNAL OF CATALYSIS
(2023)
Article
Engineering, Environmental
Sungyup Jung, Minyoung Kim, Young Jae Jeon, Yiu Fai Tsang, Amit Bhatnagar, Eilhann E. Kwon
Summary: This study introduced a sustainable method for handling and valorizing AF contaminated food waste, involving non-catalytic transesterification to convert peanuts into biodiesel with high yield.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Energy & Fuels
Bryan R. Moser, Christina Dorado, Grigor B. Bantchev, Jill K. Winkler-Moser, Kenneth M. Doll
Summary: The citrus industry produces a significant amount of biomass waste during juice production. Oil extracted from inedible sweet orange seeds was explored as a feedstock for biodiesel production. The resulting methyl esters met most of the biodiesel standards, except for oxidative stability.
Article
Engineering, Chemical
Arthur Santos Romero, Murilo Daniel de Mello Innocentini, Dachamir Hotza, J. Vladimir Oliveira
Summary: This study proposes the use of membrane separation to polish industrial enzymatic fatty acid methyl esters (FAME). Results show that the 10 kDa ultrafiltration (UF) membrane can effectively remove impurities and improve the color and contamination of FAME samples.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2022)
Article
Engineering, Environmental
Junli Liu, Bernard Y. Tao, Hao Feng, Nathan S. Mosier
Summary: FAMEs are used as an alternative to petroleum-based diesel fuels due to their low carbon footprint, but their qualities are limited by the fatty acid profiles. The evaporative urea inclusion fractionation method can effectively separate the saturated FAMEs and change the biodiesel's qualities. The composition of the fractionation is significantly influenced by the ratios of urea to FAMEs, while the formation rates of urea inclusion compounds are affected by all operation conditions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Multidisciplinary Sciences
Omojola Awogbemi, Daramy Vandi Von Kallon
Summary: This study reviews the conversion of agricultural waste into biofuels, emphasizing the environmental friendliness and sustainability of biofuels, as well as their potential value in various applications. More collaborative and interdisciplinary research is needed to develop advanced, eco-friendly, and cost-effective conversion pathways for agricultural waste.
Article
Green & Sustainable Science & Technology
Xinghua Huang, Shengfei Dong, Xiaoyi Yang
Summary: Research on improving aviation biofuel has focused on investigating main precursor compounds through hydrotreating, with fatty acid methyl/ethyl esters identified as the most desirable compounds due to their high biofuel yield and mild upgrading conditions.
Article
Plant Sciences
Anh Tuan Hoang, Ranjna Sirohi, Ashok Pandey, Sandro Nizetic, Su Shiung Lam, Wei-Hsin Chen, Rafael Luque, Sabu Thomas, Muslum Arici, Van Viet Pham
Summary: This paper presents recent advances and potential advantages of microalgae in biofuel production, as well as their role in the energy and environmental sectors. The challenges related to cultivation, harvesting techniques, and downstream processes are discussed, along with promising solutions for industrial-scale production. Additionally, the paper analyzes the role of microalgae in the circular economy.
PHYTOCHEMISTRY REVIEWS
(2023)
Article
Engineering, Environmental
Ta Cong Khiem, Xiaoguang Duan, Wei-Jie Liu, Young-Kwon Park, Ha Manh Bui, Wen-Da Oh, Suresh Ghotekar, Yiu Fai Tsang, Kun-Yi Andrew Lin
Summary: This study designed hollow rhombic cobalt sulfide (HRCS) as a template via a single-step sulfidation of cobaltic metal organic framework (CoMOF). The obtained HRCS exhibited superior catalytic performance due to its increased electroactive sites and reduced charge transfer resistance.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Engineering, Environmental
Tuhin Kamilya, Manoj K. Yadav, S. Ayoob, Subhasish Tripathy, Amit Bhatnagar, Ashok K. Gupta
Summary: The presence and removal methods of antibiotics and steroids in aquatic environment have been investigated. Constructed wetlands (CWs) were found to be an effective decentralized sustainable alternative. Understanding the removal mechanism and substrate type is important, and the performance of CWs is influenced by substrate surface area, wastewater characteristics, and physicochemical properties of the contaminants.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Weng Cheong Tan, Lip Huat Saw, Ming Chian Yew, Dongyang Sun, Wei-Hsin Chen
Summary: A novel polypropylene-based dual electrolyte aluminum-air battery is developed in this study, with potassium hydroxide as anolyte and sulfuric acid as catholyte. The results show that the dual-electrolyte system can improve the open circuit voltage and peak power density.(c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Environmental
Xing Yang, Ergang Wen, Chengjun Ge, Ali El-Naggar, Huamei Yu, Shengsen Wang, Eilhann E. Kwon, Hocheol Song, Sabry M. Shaheen, Hailong Wang, Joerg Rinklebe
Summary: The use of functionalized biochar amendments can reduce the accumulation of potentially toxic elements (PTEs) in rice grains. Specifically, silicon (Si)-rich and phosphorus (P)-rich biochars can decrease the concentration of arsenic (As) in rice grains, while iron-modified biochars can enhance rice grain yield. Additionally, P-rich biochar can increase the activity of beneficial bacteria in the soil and decrease lead (Pb) concentration in rice grains. However, iron-modified P-rich biochar can increase cadmium (Cd) and Pb concentration in rice grains.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Agricultural Engineering
Soheil Valizadeh, Yasin Khani, Abid Farooq, Gopalakrishnan Kumar, Pau Loke Show, Wei-Hsin Chen, See Hoon Lee, Young-Kwon Park
Summary: Steam gasification of microalgae over Ni-perovskite oxide catalysts resulted in higher gas yields and H2 selectivity compared to Ni/Al2O3 catalysts. The improvement in Ni dispersion and interaction with the support was achieved by using perovskite oxide supports (CaZrO3, Ca(Zr0.8Ti0.2)O3, and Ca(Zr0.6Ti0.4)O3) with partial substitution of B. The best performance was observed for Ni/Ca(Zr0.8Ti0.2)O3 due to the synergistic effect of metallic Ni and elements present in the perovskite structures, resulting in enhanced oxygen mobility.
BIORESOURCE TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Hee Sue Lee, Sungyup Jung, Sung Woo Lee, Yong Tae Kim, Jechan Lee
Summary: This study aims to demonstrate the potential for thermocatalytic waste upcycling in municipal solid waste management. The results showed that the Ni/Al2O3-N-2 catalyst used for the treatment of spent disposable wipes increased the yield of gas pyrolysate and enhanced the production of gaseous hydrogen. This study is of great significance for the efficient utilization of waste.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Akbar Eslami, Fayyaz Mehdipour, Rouzan Feizi, Farshid Ghanbari, Kun-Yi Andrew Lin, Amin Bagheri, Soheila Madihi-Bidgoli
Summary: This study reports a method using the concurrent activation of periodate (PI) by ultraviolet (UV) and ultrasound (US) to eliminate para-nitrophenol (PNP) from aqueous solution. The results show that complete degradation of PNP can be achieved in 30 minutes. It is found that the presence of ferrous ions increases the degradation rate. Additionally, the performance of the PI/UV/US process is examined on real wastewater and shows the removal of 70% of total phenol in 60 minutes. Although the process is energy-consuming, its excellent performance justifies its scaling up.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Materials Science, Composites
Manish Bhoye, Shreyas Pansambal, Parita Basnet, Kun-Yi Andrew Lin, Karina Yanet Gutierrez-Mercado, Alejandro Perez-Larios, Ankush Chauhan, Rajeshwari Oza, Suresh Ghotekar
Summary: In this study, a cost-effective and environmentally friendly method for synthesizing nickel/nickel oxide nanoparticles (Ni/NiO NPs) using Gymnema sylvestre as a natural fuel was described. The synthesized Ni/NiO NPs showed promising antifungal potential against Candida albicans and Aspergillus niger, making them suitable for nanomedicine applications.
JOURNAL OF COMPOSITES SCIENCE
(2023)
Article
Chemistry, Physical
Ta Cong Khiem, Nguyen Nhat Huy, Eilhann Kwon, Xiaoguang Duan, Stanislaw Waclawek, Jorge Bedia, Yu-Chih Tsai, Afshin Ebrahimi, Farshid Ghanbari, Kun-Yi Andrew Lin
Summary: Designing defects-rich hollow heterostructure bimetal sulfides is an efficient strategy for accelerated monoper-sulfate (MPS) activation. The mono-step sulfidation method was used to develop sulfur vacancy (SV)-rich hollow oxygen-doped Co9S8/Fe7S8 (O-CSFS), which exhibited superior performance due to the highly elec-troactive sites induced by SV and oxygen doping, low charge resistance, and increased conductivity. The ROS-driven pathway and ET-driven pathway were found to be responsible for PCM degradation in the O-CSFS/MPS system, with the ET-driven pathway playing a more significant role.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2023)
Article
Green & Sustainable Science & Technology
Loghman Rezaei, Samrand Saeidi, Andras Sapi, M. R. Abdollahi Senoukesh, Gyula Grof, Wei-Hsin Chen, Zoltan Konya, Jiri Jaromir Klemes
Summary: The solar chimney power plant is a simple and clean technology to generate electricity from solar radiation. This study developed a novel collector design with hanging metallic tubes to improve efficiency. Experimental and computational fluid dynamics analysis validated the new design and found that the metallic tubes significantly affected temperature and velocity distribution. The efficiency of the collector increased with the hanging metallic tubes and was also influenced by the geometry variation.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Environmental
Bramha Gupta, Ashok Kumar Gupta, Amit Bhatnagar
Summary: This study demonstrated the use of sulfur-doped g-C3N4/ZnO (SCZ) catalyst for efficiently removing diclofenac and tetracycline from water using UV light. The SCZ catalyst achieved high degradation efficiencies for both compounds and showed reusability. It can be a promising solution for treating pharmaceuticals in real wastewater.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Thermodynamics
Congyu Zhang, Yong Zhan, Wei-Hsin Chen, Shih-Hsin Ho, Young-Kwon Park, Alvin B. Culaba, Ying Zhang
Summary: This study evaluates the relationship between torrefaction parameters and fuel properties using various indicators. It finds that some indicators can accurately reflect the changes in different fuel properties. Additionally, the variations of torrefaction severity index and contact angle are correlated to the changes in the fuel property of the torrefied biochar.
Article
Environmental Sciences
Larissa Richa, Baptiste Colin, Anelie Petrissans, Jasmine Wolfgram, Ciera Wallace, Rafael L. Quirino, Wei-Hsin Chen, Mathieu Petrissans
Summary: This study evaluates the possibility of using catalytic torrefaction as a pretreatment to improve wood pyrolysis and combustion for greener biochar production. The findings show that catalytic torrefaction can significantly decrease the devolatilization peak during combustion, making the wood's combustion similar to that of coal.
ENVIRONMENTAL POLLUTION
(2024)
Article
Agricultural Engineering
Taewoo Lee, Dongho Choi, Jonghyun Park, Yiu Fai Tsang, Kun-Yi Andrew Lin, Sungyup Jung, Eilhann E. Kwon
Summary: This study investigated the conversion of agricultural biomass waste (specifically, spent mushroom substrate) into syngas via pyrolysis. The experimental data highlight the important role of carbon dioxide (CO2) in enhancing carbon monoxide (CO) yield through gas-phase reaction. The addition of a Ni-based catalyst further enhanced the mechanistic role of CO2.
BIORESOURCE TECHNOLOGY
(2024)
Article
Thermodynamics
Yong Cheng, Fukai Song, Lei Fu, Saishuai Dai, Zhiming Yuan, Atilla Incecik
Summary: This paper investigates the accessibility of wave energy absorption by a dual-pontoon floating breakwater integrated with hybrid-type wave energy converters (WECs) and proposes a hydraulic-pneumatic complementary energy extraction method. The performance of the system is validated through experiments and comparative analysis.
Article
Thermodynamics
Jing Gao, Chao Wang, Zhanwu Wang, Jin Lin, Runkai Zhang, Xin Wu, Guangyin Xu, Zhenfeng Wang
Summary: This study aims to establish a new integrated method for biomass cogeneration project site selection, with a focus on the application of the model in Henan Province. By integrating Geographic Information System and Multiple Criterion Decision Making methods, the study conducts site selection in two stages, providing a theoretical reference for the construction of biomass cogeneration projects.
Article
Thermodynamics
Mert Temiz, Ibrahim Dincer
Summary: The current study presents a hybrid small modular nuclear reactor and solar-based system for sustainable communities, integrating floating and bifacial photovoltaic arrays with a small modular reactor. The system efficiently generates power, hydrogen, ammonia, freshwater, and heat for residential, agricultural, and aquaculture facilities. Thermodynamic analysis shows high energy and exergy efficiencies, as well as large-scale ammonia production meeting the needs of metropolitan areas. The hybridization of nuclear and solar technologies offers advantages of reliability, environmental friendliness, and cost efficiency compared to renewable-alone and fossil-based systems.
Editorial Material
Thermodynamics
Wojciech Stanek, Wojciech Adamczyk
Article
Thermodynamics
Desheng Xu, Yanfeng Li, Tianmei Du, Hua Zhong, Youbo Huang, Lei Li, Xiangling Duanmu
Summary: This study investigates the optimization of hybrid mechanical-natural ventilation for smoke control in complex metro stations. The results show that atrium fires are more significantly impacted by outdoor temperature variations compared to concourse/platform fires. The gathered high-temperature smoke inside the atrium can reach up to 900 K under a 5 MW train fire energy release. The findings provide crucial engineering insights into integrating weather data and adaptable ventilation protocols for smoke prevention/mitigation.
Article
Thermodynamics
Da Guo, Heping Xie, Mingzhong Gao, Jianan Li, Zhiqiang He, Ling Chen, Cong Li, Le Zhao, Dingming Wang, Yiwei Zhang, Xin Fang, Guikang Liu, Zhongya Zhou, Lin Dai
Summary: This study proposes a new in-situ pressure-preserved coring tool and elaborates its pressure-preserving mechanism. The experimental and field test results demonstrate that this tool has a high pressure-preservation capability and can maintain a stable pressure in deep wells. This study provides a theoretical framework and design standards for the development of similar technologies.
Article
Thermodynamics
Aolin Lai, Qunwei Wang
Summary: This study assesses the impact of China's de-capacity policy on renewable energy development efficiency (REDE) using the Global-MSBM model and the difference-in-differences method. The findings indicate that the policy significantly enhances REDE, promoting technological advancements and marketization. Moreover, regions with stricter environmental regulations experience a higher impact.
Article
Thermodynamics
Mostafa Ghasemi, Hegazy Rezk
Summary: This study utilizes fuzzy modeling and optimization to enhance the performance of microbial fuel cells (MFCs). By simulating and analyzing experimental data sets, the ideal parameter values for increasing power density, COD elimination, and coulombic efficiency were determined. The results demonstrate that the fuzzy model and optimization methods can significantly improve the performance of MFCs.
Article
Thermodynamics
Zhang Ruan, Lianzhong Huang, Kai Wang, Ranqi Ma, Zhongyi Wang, Rui Zhang, Haoyang Zhao, Cong Wang
Summary: This paper proposes a grey box model for fuel consumption prediction of wing-diesel hybrid vessels based on feature construction. By using both parallel and series grey box modeling methods and six machine learning algorithms, twelve combinations of prediction models are established. A feature construction method based on the aerodynamic performance of the wing and the energy relationship of the hybrid system is introduced. The best combination is obtained by considering the root mean square error, and it shows improved accuracy compared to the white box model. The proposed grey box model can accurately predict the daily fuel consumption of wing-diesel hybrid vessels, contributing to operational optimization and the greenization and decarbonization of the shipping industry.
Article
Thermodynamics
Huayi Chang, Nico Heerink, Junbiao Zhang, Ke He
Summary: This study examines the interaction between off-farm employment decisions between couples and household clean energy consumption in rural China, and finds that two-paycheck households are more likely to consume clean energy. The off-farm employment of women is a key factor driving household clean energy consumption to a higher level, with wage-employed wives having a stronger influence on these decisions than self-employed ones.
Article
Thermodynamics
Hanguan Wen, Xiufeng Liu, Ming Yang, Bo Lei, Xu Cheng, Zhe Chen
Summary: Demand-side management is crucial to smart energy systems. This paper proposes a data-driven approach to understand the relationship between energy consumption patterns and household characteristics for better DSM services. The proposed method uses a clustering algorithm to generate optimal customer groups for DSM and a deep learning model for training. The model can predict the possibility of DSM membership for a given household. The results demonstrate the usefulness of weekly energy consumption data and household socio-demographic information for distinguishing consumer groups and the potential for targeted DSM strategies.
Article
Thermodynamics
Xinglan Hou, Xiuping Zhong, Shuaishuai Nie, Yafei Wang, Guigang Tu, Yingrui Ma, Kunyan Liu, Chen Chen
Summary: This study explores the feasibility of utilizing a multi-level horizontal branch well heat recovery system in the Qiabuqia geothermal field. The research systematically investigates the effects of various engineering parameters on production temperature, establishes mathematical models to describe their relationships, and evaluates the economic viability of the system. The findings demonstrate the significant economic feasibility of the multi-level branch well system.
Article
Thermodynamics
Longxin Zhang, Songtao Wang, Site Hu
Summary: This investigation reveals the influence of tip leakage flow on the modern transonic rotor and finds that the increase of tip clearance size leads to a decline in rotor performance. However, an optimal tip clearance size can extend the rotor's stall margin.
Article
Thermodynamics
Kristian Gjoka, Behzad Rismanchi, Robert H. Crawford
Summary: This paper proposes a framework for assessing the performance of 5GDHC systems and demonstrates it through a case study in a university campus in Melbourne, Australia. The results show that 5GDHC systems are a cost-effective and environmentally viable solution in mild climates, and their successful implementation in Australia can create new market opportunities and potential adoption in other countries with similar climatic conditions.
Article
Thermodynamics
Jianwei Li, Guotai Wang, Panpan Yang, Yongshuang Wen, Leian Zhang, Rujun Song, Chengwei Hou
Summary: This study proposes an orientation-adaptive electromagnetic energy harvester by introducing a rotatable bluff body, which allows for self-regulation to cater for changing wind flow direction. Experimental results show that the output power of the energy harvester can be greatly enhanced with increased rotatory inertia of the rotating bluff body, providing a promising solution for harnessing wind-induced vibration energy.
