Article
Green & Sustainable Science & Technology
Yusuf Umar, Orlando Velasco, Omar Y. Abdelaziz, Omar Aboelazayem, Mamdouh A. Gadalla, Christian P. Hulteberg, Basudeb Saha
Summary: This study introduces an integrated lignin-glycerol valorisation strategy, where glycerol is used to depolymerise lignin and the generated bio-oil is used as a renewable additive to biodiesel to enhance its oxygen stability. Results show that glycerol has a positive impact on the yield and antioxidant activity of the bio-oil. Adding bio-oil to biodiesel significantly improves its oxidation stability.
Review
Green & Sustainable Science & Technology
Sajad Tamjidi, Hossein Esmaeili, Bahareh Kamyab Moghadas
Summary: The challenge of replacing fossil fuels with new energy sources is being addressed by exploring biodiesel as an alternative, although its relatively high cost compared to conventional diesel remains an issue. The use of magnetic catalysts shows promise in reducing production costs and promoting the large-scale synthesis of biodiesel.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Energy & Fuels
Ching-Ming Lai, Dong Lin Loo, Yew Heng Teoh, Heoy Geok How, Thanh Danh Le, Huu Tho Nguyen, Ayman A. Ghfar, Farooq Sher
Summary: This study optimized the experiment model and investigated the effects of nanoparticles on fuel lubricity. The response surface methodology was used to determine the optimal values for load, speed, and concentration of nanoparticles, resulting in enhanced tribological behavior of the fuel.
Article
Energy & Fuels
Dong Lin Loo, Yew Heng Teoh, Heoy Geok How, Thanh Danh Le, Huu Tho Nguyen, Tazien Rashid, Daphiny Pottmaier, Farooq Sher
Summary: This study investigates the tribological behavior of filtered tire pyrolysis oil (FTPO)-biodiesel-diesel blended fuel with the addition of various nanoparticles. The results show that low concentrations of nanoparticle additives provide better anti-friction performance in the blended fuel by forming a protective film. 0.1 wt% of aluminum oxide (Al2O3) nano-fuel exhibits the best anti-wear performance.
Article
Energy & Fuels
Yuzeng Zheng, Fashe Li, Huicong Zhang, Shuang Wang, Zhongjin Zhao, Wenchao Wang, Renyi Chen
Summary: The study investigates the effects of light, ventilation, and antioxidants on the performance of biodiesel and the corresponding mechanisms during long-term storage. The results show that light and ventilation conditions can accelerate the oxidation of biodiesel, leading to its degradation. Additionally, long-term storage results in the formation of insoluble resins and sediments.
Review
Agricultural Engineering
Shashi Kant Bhatia, Akshaya K. Palai, Amit Kumar, Ravi Kant Bhatia, Anil Kumar Patel, Vijay Kumar Thakur, Yung-Hun Yang
Summary: With increasing population growth and industrialization, the search for clean and renewable energy sources becomes crucial. Biochar from biomass stands out due to its simple synthesis, high surface area, and porosity, making significant contributions to energy production.
BIORESOURCE TECHNOLOGY
(2021)
Article
Energy & Fuels
Abdulaziz A. Al-Kheraif, Asad Syed, Abdallah M. Elgorban, Darshan Devang Divakar, Rajasree Shanmuganathan, Kathirvel Brindhadevi
Summary: This study focuses on utilizing Candle nut and Soap nut biodiesel as an alternative to conventional fuel, incorporating nanoalumina at a concentration of 25 ppm to analyze emission characteristics and engine performance. The results show that the nanoparticles improve engine performance significantly due to the increased surface area to volume ratio of Al2O3, leading to reductions in nitrous oxide, carbon monoxide, and hydrocarbon emissions at higher concentrations. Among the various biodiesel blends, 30B samples demonstrate the best results in reducing emissions.
Review
Energy & Fuels
Ferdinand Baer, Markus Knorr, Olaf Schroeder, Henning Hopf, Thomas Garbe, Juergen Krahl
Summary: Modern diesel engines require well-defined fuel properties for high efficiency, low emissions, and long durability. Blending biodiesel with fossil diesel fuel poses oxidation risks, necessitating the addition of antioxidants to prevent oxidation products. The oxidation stability of diesel fuels is crucial for long-term storage.
Article
Energy & Fuels
Leanne Silva de Sousa, Rodarte de Moura, Edmilson Miranda de Moura
Summary: The study investigated the effectiveness of natural antioxidants such as oregano, bilberry, basil extracts, and quercetin in improving the quality and stability of biodiesel during storage. It was found that oregano extract exhibited the highest antioxidant activity, followed by bilberry and basil extracts. The addition of natural antioxidants can delay the oxidative degradation process of soy biodiesel, providing economic gains and potential alternative methods for measuring oxidation stability.
Article
Energy & Fuels
Mansoor Alruqi, Prabhakar Sharma, Balakrishnan Deepanraj, Feroz Shaik
Summary: The present study investigated the performance and emissions of a small diesel engine fueled with ternary blends of algal biodiesel, diesel, and diethyl ether. The addition of diethyl ether improved the engine's efficiency and peak pressure, but increased NOX emissions. A prognostic model was developed using Gaussian Process Regression and Bayesian optimization, which accurately predicted engine performance and exhaust emissions.
Article
Energy & Fuels
Zainab Afailal, Noemi Gil-Lalaguna, Maria Teresa Torrijos, Alberto Gonzalo, Jesus Arauzo, Jose Luis Sanchez
Summary: This experimental study focused on producing antioxidant additives for biofuels from argan shell lignin, showing a significant improvement in biodiesel oxidation stability. Depolymerization temperature was identified as a critical factor, with the best results achieved at 300 degrees C. Phenolic monomers, especially catechol, were found in the produced additives, contributing to the enhanced antioxidant potential.
Article
Energy & Fuels
Anand Shankar Singh, Sukanta Kumar Dash, V. Mahendra Reddy
Summary: Ammonia has shown potential as a green fuel, and blending it with hydrogen can overcome challenges in combustion. A new reaction model for NH3/H-2/air mixtures with 32 species and 259 reactions closely follows experimental trends. Hydrogen enrichment improves heat release rate and flame speed of ammonia, making it a promising industrial fuel.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Engineering, Environmental
Tomasz Turzynski, Katarzyna Januszewicz, Pawel Kazimierski, Dariusz Kardas, Paulina Hercel, Jakub Szymborski, Jaroslaw Niewiadomski
Summary: Leather processing companies are facing the challenge of increasing costs for post-production waste disposal. To address this, thermal waste disposal at the plant and utilization of generated heat in the production process are gaining popularity. Research shows that by adding a small amount of wood sawdust to leather waste, its flammability can be improved, enabling stable combustion and avoiding the formation of sinters. Furthermore, leather waste can be an attractive and safe source of energy for companies, contributing to improved waste management in a circular economy.
Article
Biotechnology & Applied Microbiology
Ana Paula Soares Dias, Monica Catarino, Joao Gomes
Summary: Fatty Acid Methyl Esters (FAME) can be produced from lard/soybean oil mixtures using a calcium-based catalyst. Co-processing lard/SBO mixtures can attenuate the undesirable fat acidity drawback and increase FAME yields.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Energy & Fuels
Feihong Zhang, Jun Li, Shuping Yang, Yanlan Bi
Summary: Six antioxidants were found to effectively inhibit the crystallization of biodiesel at low temperatures, resulting in reduced cold filter plugging point, solid fat content, crystallization rate, and crystal size. Different concentrations of antioxidants were required to achieve the induction period regulated by EU standards. The inhibitory effect was attributed to the insertion of antioxidants between initial crystal nucleuses through hydrogen bonds, inhibiting crystal growth and promoting a consistent crystalline form.
Article
Agricultural Engineering
Yustina M. Pusparizkita, Christian Aslan, Wolfgang W. Schmahl, Hary Devianto, Ardiyan Harimawan, Tjandra Setiadi, Yan Jer Ng, Athanasius P. Bayuseno, Pau Loke Show
Summary: Microbiologically influenced corrosion (MIC) is a destructive phenomenon that can occur in diesel mixture storage tanks, particularly due to the presence of biodiesel. The study identified the bacteria responsible for MIC and found that B. licheniformis can produce gamma-polyglutamate as a corrosion inhibitor. This suggests that B. licheniformis-mediated biocorrosion may promote the use of biodiesel as an environmentally friendly biofuel.
BIOMASS & BIOENERGY
(2023)
Article
Agricultural Engineering
Jun Wei Roy Chong, Kuan Shiong Khoo, Kit Wayne Chew, Dai-Viet N. Vo, Deepanraj Balakrishnan, Fawzi Banat, Heli Siti Halimatul Munawaroh, Koji Iwamoto, Pau Loke Show
Summary: The aim of this study is to incorporate rapid, high-accuracy, reliable, low-cost, simple, and state-of-the-art identification methods for microalgae species identification. Recently, deep learning (DL) has significantly improved the efficiency and accuracy of microalgae identification. This review paper discusses the significance of microalgae identification and the use of machine learning algorithms, image preprocessing techniques, and feature extraction for classification accuracy.
BIORESOURCE TECHNOLOGY
(2023)
Article
Environmental Sciences
Swati Sharma, Pau Loke Show, Tejraj M. Aminabhavi, Surajbhan Sevda, Vijay Kumar Garlapati
Summary: The present study develops a novel concept of using waste media as an algal nutrient resource compared to the usual growth media. The study proposes the utilization of food-and agri-compost wastes as microbial media for photosynthetic algae. The study also showcases the production of macromolecules with different dilutions of waste media.
ENVIRONMENTAL RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Shams Forruque Ahmed, J. C. Debnath, Fatema Mehejabin, Nafisa Islam, Ritu Tripura, M. Mofijur, Anh Tuan Hoang, M. G. Rasul, Dai-Viet N. Vo
Summary: Around 84% of global energy needs are met by fossil fuels despite their drawbacks. The dependence on fossil fuels can be reduced through the use of biofuels. Biofuels, derived from renewable resources, are less combustible compared to fossil fuels. Nanotechnology can enhance biofuel production from non-edible feedstocks.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2023)
Article
Thermodynamics
Uganeeswary Suparmaniam, Man Kee Lam, Hemamalini Rawindran, Jun Wei Lim, Khairul Faizal Paee, Kelly Tau Len Yong, Inn Shi Tan, Bridgid Lai Fui Chin, Pau Loke Show, Keat Teong Lee
Summary: This study proposes a novel method using onion peel as a biostimulant to enhance microalgae biomass productivity. The extraction parameters were optimized using the response surface methodology (RSM) and showed a strong correlation with microalgae biomass concentration and lipid content. The biostimulant extracted under optimal conditions exhibited promising bioactivities, including antioxidant activity and phenolic and flavonoid content. These findings suggest that onion waste-derived biostimulant can significantly promote microalgae proliferation, providing a roadmap for high-density microalgae farming and improving the efficiency of the microalgae industry.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Review
Environmental Sciences
Raj Kumar Oruganti, Alka Pulimoottil Biji, Tiamenla Lanuyanger, Pau Loke Show, Malinee Sriariyanun, Venkata K. K. Upadhyayula, Venkataramana Gadhamshetty, Debraj Bhattacharyya
Summary: The increased water scarcity, depletion of freshwater resources, and rising environmental awareness are stressing for the development of sustainable wastewater treatment processes. Microalgae-based wastewater treatment has resulted in a paradigm shift in our approach toward nutrient removal and simultaneous resource recovery from wastewater. Artificial intelligence (AI)/machine learning algorithms (MLA) offer innovative strategies for assessing, predicting, and regulating uncertainties in algal wastewater treatment and biorefinery.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Agricultural Engineering
Le Kim Hoang Pham, Suwadee Kongparakul, Mingyue Ding, Guoqing Guan, Narong Chanlek, Prasert Reubroycharoen, Dai-Viet N. Vo, Nguyen Van Cuong, Chanatip Samart
Summary: Catalytic pyrolysis is a cost-effective technology for producing high-quality biofuels. The development of catalysts plays a crucial role in controlling the reaction pathways and producing specific products. In this study, palm kernel shells were pyrolyzed with a melamine-doped activated-carbon-supported Ni2P catalyst. The catalyst showed great potential for the selective production of phenolic compounds.
BIOMASS & BIOENERGY
(2023)
Article
Agricultural Engineering
Hongyan Ren, Jing Ni, Mingwei Shen, Duan Zhou, Fubao Sun, Pau Loke Show
Summary: In order to enhance the efficiency of microalgae capturing CO2 from flue gas, a nanofiber membrane containing iron oxide nanoparticles (NPsFe2O3) was prepared for CO2 adsorption and coupled with microalgae utilization. The nanofiber membrane with 4% NPsFe2O3 exhibited the largest specific surface area of 8.148 m2 g-1 and pore size of 27.505 angstrom. The membrane effectively prolonged CO2 residence time and increased CO2 dissolution. In the Chlorella vulgaris culture process, the biomass productivity, CO2 fixation efficiency, and carbon fixation efficiency were improved by 1.4 times with the presence of two layers of the nanofiber membrane compared to the group without the membrane (0 layer).
BIORESOURCE TECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Weiwu Ma, Chuqing Xiao, Shams Forruque Ahmed, Tao Feng, Gang Liu
Summary: This study presents a three-phase dynamic energy planning framework based on multi-objective optimization, assessment, and analysis. It proposes an optimization phase using NSGA-II to determine the optimal allocation of multiple energy sources, and a comprehensive assessment system combining the G1 method and entropy weight method. The framework is applicable to Guangdong Province and suggests prioritizing offshore wind power, steady development of hydropower and nuclear power, and vigorous development of solar power to achieve carbon neutrality by 2060.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Biotechnology & Applied Microbiology
Danial 'Aizat Norhisham, Norsharina Md Saad, Siti Rokhiyah Ahmad Usuldin, Diwiya A. G. Vayabari, Zul Ilham, Mohamad Faizal Ibrahim, Pau-Loke Show, Wan Abd Al Qadr Imad Wan-Mohtar
Summary: The versatility of kenaf, a well-known fibrous crop, has not been widely recognized. This study utilized plant cell suspension culture to maximize the production of kenaf callus biomass (KCB) and exopolysaccharide (EPS). The results showed that sucrose concentration, agitation speed, and naphthalene acetic acid (NAA) concentration significantly affected the production of KCB and EPS.
Article
Chemistry, Multidisciplinary
Bao-Ngoc T. Le, Nguyen-Phuong Nguyen, Thanh-Linh H. Duong, Tri Nguyen, Tien-Cuong Hoang, Hong-Ha T. Nguyen, Dai-Viet N. Vo, Hoang-Duy P. Nguyen, Thuy-Phuong T. Pham
Summary: Plasma-activated water (PAW), containing reactive oxygen and nitrogen species, has potential applications in food disinfection and sustainable agriculture. However, a lower-cost production system for commercial use is yet to be developed. Ultrasonic-activated water (UAW) offers a viable alternative, with similar properties to PAW but more feasible production. A novel double-bath-type sonoreactor efficiently produced UAW, with its composition and properties influenced by dissolved gases and acoustic density. The optimal gas composition was found to be a mixture of oxygen, nitrogen, and argon. The low-cost sonoreactor showed comparable H2O2 production efficiency to expensive sonoreactors and plasma devices.
REACTION CHEMISTRY & ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Adila Fazliyana Aili Hamzah, Muhammad Hazwan Hamzah, Hasfalina Che Man, Nur Syakina Jamali, Shamsul Izhar Siajam, Pau Loke Show
Summary: This work reviews the use of hydrothermal subcritical water pretreatment to enhance biogas production through anaerobic digestion. The complexity of the lignocellulosic structure has been a major limitation in biogas production during anaerobic digestion, leading to increased interest in applying pretreatment to facilitate hydrolysis. The review discusses the influence of subcritical water pretreatment on the structural properties, biogas production, and production of anaerobic process inhibitors, highlighting the need for further evaluation in this area. Overall, hydrothermal subcritical water pretreatment shows promise in enhancing biogas production during anaerobic digestion.
PERTANIKA JOURNAL OF SCIENCE AND TECHNOLOGY
(2023)
Article
Computer Science, Artificial Intelligence
Shams Forruque Ahmed, Md. Sakib Bin Alam, Shaila Afrin, Sabiha Jannat Rafa, Nazifa Rafa, Amir H. Gandomi
Summary: The Internet of Medical Things (IoMT) has opened up various opportunities for knowledge exchange in different industries. However, the adoption of IoMT faces challenges such as interoperability, data privacy, security, regulatory, and infrastructure costs. This paper focuses on the implications of data fusion in IoMT and addresses the security challenges and potential solutions.
INFORMATION FUSION
(2024)
Article
Thermodynamics
Weiwu Ma, Chong Yang, Shams Forruque Ahmed, Yanrong Chen, Cheng Yang, Gang Liu
Summary: This study investigates the influence of perforation parameters on fracturing results in the hot dry rock (HDR) environment through a coupled thermal-hydraulic-mechanical model. The results reveal the significance of in-plane perforation spacing on the fracturing efficiency. The findings can be applied to optimize the perforation parameters for fixed-plane fracturing.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Weiwu Ma, Yifan Xu, Shams Forruque Ahmed, Chong Yang, Gang Liu
Summary: This study introduces a novel index, the effective time-averaged volume, to evaluate the effectiveness of reservoirs and fractures in enhanced geothermal systems (EGS). The research finds that reducing the effective time-averaged volume can increase thermal recovery rate and power generation. The optimized parameters of the model include a reservoir permeability of 0.5 mD, a primary fracture permeability of 50 D, an injection flow rate of 45 kg/s, an injection temperature of 20 degrees C, and a well spacing of 200 m. These insights provide valuable guidance for the efficient design, operation, and optimization of EGS.
APPLIED THERMAL ENGINEERING
(2024)
