Article
Chemistry, Multidisciplinary
Yan Liu, Meng-Yu Liu, Ying-Xi Qi, Xin-Yan Jin, Han-Rui Xu, Yu-xin Chen, Shuo-ping Chen, He-ping Su
Summary: A cost-effective wax was synthesized from waste cooking oil, and it showed higher melting point, good hardness, and combustion performance compared to the original waste cooking oil. The addition of stearic acid further improved the properties of the wax. This research provides a new path for waste cooking oil recycling in economically trailing regions.
Article
Energy & Fuels
Harveer Singh Pali, Abhishek Sharma, Naveen Kumar, Yashvir Singh
Summary: The production of high quality biodiesel from Kusum oil using base catalysed transesterification has been optimized through statistical modeling. The optimized conditions yielded biodiesel with desirable characteristics and a high yield, making it a viable option for commercial production.
Article
Engineering, Environmental
Adeyinka Sikiru Yusuff, Afeez Olayinka Gbadamosi, Lekan Taofeek Popoola
Summary: This study developed a new eco-friendly solid catalyst from anthill-zinc modification for methanolysis of low-grade feedstock to produce biodiesel. The optimized conditions for the reaction resulted in a high biodiesel yield of 83.16%, showing good agreement with the predicted value. The catalyst exhibited better stability after being regenerated and reused for six cycles, indicating its potential for economical biofuel production from waste products.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Agricultural Engineering
Ilknur Alibas, Aslihan Yilmaz, Kamil Alibas, Murat Arslan, Caner Koc
Summary: Seven microalgae species were dried using four different drying methods, and biodiesel was produced from the dried microalgae. The highest vegetable oil yield and biodiesel yield were obtained in Schizochytrium dried by spray technique. The microwave drying method resulted in the lowest cloud point for Botryococcus braunii and the highest pour point and freezing point for Chlorella variabilis. Schizochytrium and Nitzschia were found to be the most suitable microalgae species for biodiesel production. Among the drying methods, spray drying produced the most successful results for biodiesel production from Schizochytrium.
BIOMASS & BIOENERGY
(2023)
Article
Energy & Fuels
David Chaos-Hernandez, Hilda Elizabeth Reynel-Avila, Didilia Ileana Mendoza-Castillo, Adrian Bonilla-Petriciolet, Ismael Alejandro Aguayo-Villarreal
Summary: This study optimized the pyrolysis, functionalization, and activation of coconut endocarp-based catalysts for transesterification to produce FAME. Results showed that thermal activation improved catalyst properties, leading to high FAME formation. Physicochemical characterization explained the performance of these catalysts, suggesting their potential as a low-cost alternative for biodiesel production.
Article
Agricultural Engineering
Godwin Mong Kalu-Uka, Sandeep Kumar, Abraham Chinedu Kalu-Uka, Shruti Vikram, Okore Okay Okorafor, Moses Kigozi, Gina Odochi Ihekweme, Azikiwe Peter Onwualu
Summary: In this study, biodiesel was successfully produced from insect feedstock M. nigeriensis with physicochemical properties meeting ASTM D6751 standards. The biodiesel had a high conversion rate of free fatty acids, low viscosity attributed to monounsaturated fatty acid esters, and good oxidation stability due to absence of polyunsaturated fatty acid esters.
BIOMASS & BIOENERGY
(2021)
Article
Chemistry, Physical
Zhipeng Li, Shengli Niu, Kuihua Han, Yingjie Li, Yongzheng Wang, Chunmei Lu, Shiqing Cheng
Summary: The study investigates the influences of methanol pre-adsorption on the CaO(100) surface in transesterification, showing that pre-adsorption of methanol can enhance the activation effect and promote the transesterification process.
APPLIED CATALYSIS A-GENERAL
(2021)
Article
Green & Sustainable Science & Technology
Martin Gojun, Anita Salic, Bruno Zelic
Summary: Competition among renewable energy sources is rapidly growing in the market, with an integrated biodiesel production process combining lipase-catalyzed transesterification and product purification in microreactors and micro-separators showing promising results.
Article
Energy & Fuels
M. El-Galad, K. M. El-Khatib, S. T. El-Sheltawy
Summary: The main objective of this study was to design and simulate three different continuous processes for biodiesel production. An economic assessment and sensitivity analysis were performed, and the results showed that the homogeneous alkali-catalyzed process using THF had the lowest total capital investment and the highest after-tax rate of return. The heterogeneous alkali-catalyzed process using THF had the lowest manufacturing cost and the highest after-tax net profit. The supercritical methanolysis process using THF had the highest manufacturing cost and after-tax net profit.
BIOENERGY RESEARCH
(2023)
Article
Agricultural Engineering
Reda Z. K. Hussein, Nahed K. Attia, Mai K. Fouad, Shakinaz T. ElSheltawy
Summary: Waste cooking oil was used to synthesize biolubricant, with optimized conditions achieving the highest conversion rate. The structural and thermal properties of the produced biolubricant were tested, showing compliance with ISO VG68 viscosity grade and better low temperature applicability. Simulation results demonstrated the industrial applicability of the studied biolubricant production process using different models on Aspen HYSYS program version 9.
BIOMASS & BIOENERGY
(2021)
Article
Green & Sustainable Science & Technology
Chihe Sun, Yun Hu, Fubao Sun, Yahui Sun, Guojie Song, Haixing Chang, Siriporn Lunprom
Summary: The study prepared a heterogeneous cobalt doping Zn/Al complex oxide catalyst by a simple birch-templating method and successfully applied it to the transesterification of jatropha oil with methanol, achieving a high biodiesel yield. The crystalline particles from the templating method were uniformly distributed on the catalyst surface, forming a well-defined tiled network with large amounts of grain-free pores.
Article
Green & Sustainable Science & Technology
Olusegun David Samuel, Peter A. Aigba, Thien Khanh Tran, H. Fayaz, Carlo Pastore, Oguzhan Der, Ali Ercetin, Christopher C. Enweremadu, Ahmad Mustafa
Summary: This study compares the ethyl-based hydrodynamic cavitation reactor (HCR) with the mechanical stirring reactor (MSR) for biodiesel production from rubber seed oil (RSO). The HCR proves to be more productive and energy efficient, with lower carbon emissions and investment cost, and higher net present value and return on investment compared to the MSR.
Article
Chemistry, Physical
Jiadi Liu, Minghuan Liu, Shaoyun Chen, Bingqing Wang, Jin Chen, Da-Peng Yang, Shangzhou Zhang, Wenxiao Du
Summary: The use of waste eggshells to develop CaO/Au nanocatalyst for transesterification reaction between soybean oil and methanol showed superior catalytic activity and good recyclability.
GREEN ENERGY & ENVIRONMENT
(2022)
Article
Thermodynamics
Dalibor Petkovic, Miljana Barjaktarovic, Slavisa Milosevic, Nebojsa Denic, Boban Spasic, Jelena Stojanovic, Milos Milovancevic
Summary: In order to reduce the cost of biodiesel production, it is necessary to use non-edible oils and establish computational models. The study found that fuel injection pressure and engine load have a significant impact on the performance and emission parameters of biodiesel.
Article
Chemistry, Multidisciplinary
Eliane Dahdah, Jane Estephane, Yasmine Taleb, Bilal El Khoury, John El Nakat, Samer Aouad
Summary: An Mg-Al hydrotalcite with a Mg/Al molar ratio of 3 was prepared via co-precipitation, and rehydration after calcination significantly improved catalytic activity, with the Mg6Al2-450RH showing the highest FAME yield.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2021)
Article
Energy & Fuels
Rui Moreira, Rui Vaz, Antonio Portugal, Noemi Gil-Lalaguna, Jose Luis Sanchez, Fernando Bimbela
Article
Energy & Fuels
Cristina Dueso, Mariano Munoz, Francisco Moreno, Jorge Arroyo, Noemi Gil-Lalaguna, Ana Bautista, Alberto Gonzalo, Jose Luis Sanchez
Article
Chemistry, Physical
J. Lachen, J. Herguido, J. A. Pena
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Chemistry, Physical
J. Lachen, P. Duran, M. Menendez, J. A. Pena, J. Herguido
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2018)
Article
Chemistry, Multidisciplinary
Lucia Botella, Filip Stankovikj, Jose L. Sanchez, Alberto Gonzalo, Jesus Arauzo, Manuel Garcia-Perez
FRONTIERS IN CHEMISTRY
(2018)
Article
Chemistry, Applied
Rui Moreira, Ainara Moral, Fernando Bimbela, Antonio Portugal, Abel Ferreira, Jose Luis Sanchez, Luis M. Gandia
FUEL PROCESSING TECHNOLOGY
(2019)
Article
Energy & Fuels
Jean-Michel Lavoie, Thierry Ghislain, Emmanuelle Bahl, Jesus Arauzo, Alberto Gonzalo, Noemi Gil-Lalaguna, Jose Luis Sanchez
Article
Green & Sustainable Science & Technology
J. Lachen, J. Herguido, J. A. Pena
Article
Green & Sustainable Science & Technology
Daniel Plaza, Julia Artigas, Javier Abrego, Alberto Gonzalo, Jose Luis Sanchez, Augustin Diomande Dro, Yohan Richardson
ENERGY FOR SUSTAINABLE DEVELOPMENT
(2019)
Article
Materials Science, Multidisciplinary
P. J. Lloreda-Jurado, E. M. Perez-Soriano, A. Paul, J. Herguido, J. A. Pena, R. Sepulveda
MATERIALS SCIENCE AND TECHNOLOGY
(2020)
Review
Chemistry, Multidisciplinary
Rui Moreira, Fernando Bimbela, Noemi Gil-Lalaguna, Jose Luis Sanchez, Antonio Portugal
Summary: This review discusses the current status and future prospects of char gasification technologies, highlighting the lack of extensive research in this area compared to lignocellulosic biomass gasification. It focuses on studies conducted in industrially relevant reactors and the opportunities presented by process intensification through microwave heating.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Chemistry, Physical
Andres Sanz-Martinez, Paul Duran, Victor D. Mercader, Eva Frances, Jose Angel Pena, Javier Herguido
Summary: This study focused on the concept of 'biogas upgrading' to increase CH4 levels in sweetened biogas to those of synthetic natural gas. The behavior of three lab-made catalysts in a CO2 methanation reaction was tested, showing good catalytic performance and high CH4 selectivity. Addition of CH4 did not significantly alter the reaction mechanism, allowing for potential utilization of off-peak H-2 for maximizing CH4 yield.
Article
Energy & Fuels
Zainab Afailal, Noemi Gil-Lalaguna, Robert J. Macias, Alberto Gonzalo, Jose Luis Sanchez
Summary: This study proposes an integral valorization route using a pyrolysis process to produce activated biochar and antioxidant additives from argan shells. The pyrolysis temperature has minimal effect on the yield of biochar and bio-oil, but higher temperatures result in a slight decrease in the content of phenolic monomers in the bio-oil. Blending these extracted fractions with biodiesel greatly improves its oxidation stability. The activated biochar derived from argan shells shows potential as an adsorbent for CO2 and phenols.
BIOENERGY RESEARCH
(2023)
Article
Agricultural Engineering
Yinping Xiang, Meiying Jia, Rui Xu, Jialu Xu, Lele He, Haihao Peng, Weimin Sun, Dongbo Wang, Weiping Xiong, Zhaohui Yang
Summary: This study investigated the impact of the non-antibiotic pharmaceutical carbamazepine on antibiotic resistance genes (ARGs) during anaerobic digestion. The results showed that carbamazepine induced the enrichment of ARGs and increased the abundance of bacteria carrying these genes. It also facilitated microbial aggregation and intercellular communication, leading to an increased frequency of ARGs transmission. Moreover, carbamazepine promoted the acquisition of ARGs by pathogens and elevated their overall abundance.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Weixin Zhao, Tianyi Hu, Hao Ma, Dan Li, Qingliang Zhao, Junqiu Jiang, Liangliang Wei
Summary: This review summarizes the effects and potential mechanisms of biochar on microbial behavior in AD systems. The addition of biochar has been found to promote microbial colonization, alleviate stress, provide nutrients, and enhance enzyme activity. Future research directions include targeted design of biochar, in-depth study of microbial mechanisms, and improved models.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Christina Karmann, Anna Magrova, Pavel Jenicek, Jan Bartacek, Vojtech Kouba
Summary: This review assesses nitrogen removal technologies in reject water treatment, highlighting the differences in environmental impacts and economic benefits. Partial nitritation-anammox shows potential for economic benefits and positive environmental outcomes when operated and controlled properly.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Wei-Hao Huang, Ying-Ju Chang, Duu-Jong Lee
Summary: This study modified pinecone biochar with layered double hydroxide (LDH) to enhance its adsorption capacity for heavy metal and phosphate ions. The LDH-biochar showed significantly improved adsorption capacities for Pb2+ and phosphate, and a slight increase for Cu2+ and Co2+. The LDH layer enhanced the adsorption through various mechanisms.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Chao Song, Fanfan Cai, Shuang Yang, Ligong Wang, Guangqing Liu, Chang Chen
Summary: This paper developed a machine learning model to predict the biochemical methane potential during anaerobic digestion. Model analysis identified lignin content, organic loading, and nitrogen content as key attributes for methane production prediction. For feedstocks with high cellulose content, early methane production is lower but can be improved by prolonging digestion time. Moreover, lignin content exceeding a certain value significantly inhibits methane production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sang Min Lee, Ju Young Lee, Ji-Sook Hahn, Seung-Ho Baek
Summary: This study successfully developed an efficient platform strain using Yarrowia lipolytica for the bioconversion of renewable resources into adipic acid, achieving a remarkable increase in production level.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sefkan Kendir, Matthias Franzreb
Summary: This study presents a novel approach using magnetic separation to efficiently harvest freshwater microalgae, Chlorella vulgaris. By combining pH-induced calcium phosphate precipitation with cheap natural magnetite microparticles, harvesting efficiencies up to 98% were achieved in the model medium.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Ishaq Kariim, Ji-Yeon Park, Wajahat Waheed Kazmi, Hulda Swai, In-Gu Lee, Thomas Kivevele
Summary: The impact of reaction temperature, residence time, and ethanol: acetone on the energy compositions and yield enhancement of biocrudes was investigated. The results showed that under appropriate conditions, biocrudes with high energy and low oxygen content can be obtained, indicating a high potential for utilization.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xiyue Zhang, Xiyao Li, Liang Zhang, Yongzhen Peng
Summary: Intermittent aeration is an innovative approach to enhance nitrogen removal in low carbon-to-nitrogen ratio municipal sewage, providing an efficient strategy for the continuous plug-flow AOA process.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xu Yang, Mahmoud Mazarji, Mengtong Li, Aohua Li, Ronghua Li, Zengqiang Zhang, Junting Pan
Summary: This study investigated the impact of magnetite on the nitrogen cycle of pig manure biostabilisation. The addition of magnetite increased N2O emissions and decreased NH3 emissions during composting. It also increased the total nitrogen content but should be considered for its significant increase in N2O emissions in engineering practice.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Ty Shitanaka, Haylee Fujioka, Muzammil Khan, Manpreet Kaur, Zhi-Yan Du, Samir Kumar Khanal
Summary: The market value of microalgae has exponentially increased in the past two decades, thanks to their applications in various industries. However, the supply of high-value microalgal bioproducts is limited due to several factors, and strategies are being explored to overcome these limitations and improve microalgae production, thus increasing the availability of algal-derived bioproducts in the market.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Martin Kerner, Thorsten Wolff, Torsten Brinkmann
Summary: The efficiency of using enriched CO2 from flue gas for large-scale production of green microalgae has been studied. The results show that the use of membrane devices and static mixers can effectively improve the CO2 recovery rate and maintain the suitable pH and temperature during cultivation, achieving a more economical and sustainable microalgae production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rui Ma, Ji Li, Rd Tyagi, Xiaolei Zhang
Summary: This review summarizes the microorganisms capable of using CO2 and CH4 to produce PHAs, illustrating the production process, factors influencing it, and discussing optimization techniques. It identifies the challenges and future prospects for developing economically viable PHAs production using GHGs as a carbon source.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Bing Wang, Peng Zhang, Xu Guo, Xu Bao, Junjie Tian, Guomin Li, Jian Zhang
Summary: The addition of zeolite in the co-composting of chicken manure and straw significantly reduced the emissions of ammonia and N2O, and increased the nitrate content. Zeolite also promoted the abundance of nitrification genes and inhibited the expression of denitrification genes.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rohit Dey, Franziska Ortiz Tena, Song Wang, Josef Martin Messmann, Christian Steinweg, Claudia Thomsen, Clemens Posten, Stefan Leu, Matthias S. Ullrich, Laurenz Thomsen
Summary: This study investigated the operation of a 1000L microalgae-based membrane photobioreactor system for continuous secondary wastewater treatment. The research focused on a green microalgae strain called Desmodesmus sp. The study aimed to understand key trends and optimization strategies by conducting experiments in both summer and winter seasons. The findings showed that maintaining low cell concentrations during periods of light inhibition was beneficial for nutrient uptake rates. Effective strategies for enhancing algae-based wastewater treatment included cell mass recycling and adjusting dilution rates based on light availability.
BIORESOURCE TECHNOLOGY
(2024)
