Article
Green & Sustainable Science & Technology
L. C. Moreira, P. O. Borges, R. M. Cavalcante, A. F. Young
Summary: This study aims to simulate and economically compare alternative processes for the production and treatment of biogas from vinasse, the main residue of ethanol production. The results showed that using an anaerobic lagoon and silica gel adsorption for water removal is the best process alternative for biogas treatment.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Thermodynamics
Elham Najafi, Eulogio Castro, Keikhosro Karimi
Summary: The study shows that olive wastes can be effectively utilized in a biorefinery plant to produce bio-methane and bio-ethanol through various pretreatment and utilization scenarios, significantly improving energy recovery of the entire plant.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Agricultural Engineering
Xiaojing Zhang, Hongli Zhang, Zhao Chen, Denghui Wei, Yali Song, Yongpeng Ma, Hongzhong Zhang
Summary: Nitrogenous fertilizer wastewater was treated by anaerobic digestion and CANON process, with high efficiency and low concentrations of COD, ammonia, and total nitrogen in the effluent. Methanothrix and Methanomassiliicoccus were dominant methane production archaea, while Nitrosomanas, Candidatus Kuenenia, and Truepera were functional bacteria for nitrogen removal.
BIORESOURCE TECHNOLOGY
(2021)
Article
Thermodynamics
Ahmad Naquash, Muhammad Abdul Qyyum, Junaid Haider, Hankwon Lim, Moonyong Lee
Summary: Biogas upgrading followed by biomethane liquefaction is preferred for long-distance transportation and storage. Cryogenic upgrading technology is a promising option for producing high purity biomethane, despite being energy-intensive, as its integration with the liquefaction process can ultimately reduce the overall energy load.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Review
Biotechnology & Applied Microbiology
Eugenia Leandro Almeida, Jose Eduardo Olivo, Cid Marcos Goncalves Andrade
Summary: Biodiesel, a substitute for petrochemical diesel, can be obtained from renewable raw materials. However, its production leads to a market saturation of glycerol, causing devaluation and economic unfeasibility. Despite this, research explores the use of glycerol as a raw material for biofuel production, driven by environmental concerns.
FERMENTATION-BASEL
(2023)
Article
Green & Sustainable Science & Technology
Junyoung Cha, Yongha Park, Boris Brigljevic, Boreum Lee, Dongjun Lim, Taeho Lee, Hyangsoo Jeong, Yongmin Kim, Hyuntae Sohn, Hrvoje Mikulcic, Kyung Moon Lee, Dong Hoon Nam, Ki Bong Lee, Hankwon Lim, Chang Won Yoon, Young Suk Jo
Summary: This study presents a novel method for hydrogen production from green ammonia reforming, utilizing high-efficiency catalysts and reactors to achieve substantial H2 production with reduced CO2 emissions. Techno-economic analysis demonstrates a significant decrease in hydrogen selling prices as system scales increase, indicating the potential for further cost reduction with scalability.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Engineering, Environmental
Guclu Insel, Goksin Ozyildiz, Didem Okutman-Tas, Didem Guven, Gulsum Emel Zengin, Ilke Pala-Ozkok, Ece Sagir Kurt, Ezgi Atli, Nazik Artan, Imre Takacs, Emine Cokgor
Summary: This study investigated the deviations of operational parameters of a large-scale wastewater treatment plant from design basis. The results showed that anaerobic hydrolysis was the bottleneck in biogas production, leading to poor performance of the anaerobic digestion in the full-scale plant.
Article
Biotechnology & Applied Microbiology
Tamara Llano, Carlos Arce, David C. Finger
Summary: Biogas production from bioresidues collected in the capital area of Reykjavik was modelled, using municipal solid waste (MSW), food waste (FW), and lignocellulosic biomass (LCB) as feedstocks. Results showed that the highest methane yield was obtained using LCB as feedstock under thermophilic temperature conditions.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2021)
Article
Thermodynamics
Joao R. Pacheco, Hugo G. D. Villardi, Raquel M. Cavalcante, Andre F. Young
Summary: This study explores three nonconventional supercritical routes for industrial biodiesel production, with Routes 1 and 3 proving to be technically feasible while Route 2 requires further development.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Chemistry, Multidisciplinary
Masoud Mandooie, Ehsan Salehi
Summary: Anhydrous zinc acetate was utilized as an inexpensive catalyst for the synthesis of dimethyl carbonate (DMC) via urea alcoholysis. Through response surface methodology, the optimal conditions including reaction time, temperature, and catalyst amount were determined. Two different approaches were employed to assess the optimization, focusing on maximizing DMC yield and minimizing the production of the undesirable byproduct, N-methyl methyl carbamate (NMMC). Sobol sensitivity analysis revealed that reaction temperature and the interaction between reaction temperature and catalyst amount had the greatest impact on DMC yield, while temperature and reaction time had the most significant effect on NMMC yield. The multi-objective optimization results were more suitable for continuous DMC production, and a modified continuous process was proposed. The binding energies of the reactants were evaluated using Density-Functional-Theory to investigate the potential reaction mechanism, with the highest values observed for the interaction between zinc and methyl carbamate (MC) nitrogen.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Chemistry, Physical
Yung Sheng Yong, Ruwaida Abdul Rasid
Summary: In this study, a thermodynamic-based process simulation model was developed to investigate the gasification of empty fruit bunch (EFB) after torrefaction. The results showed that steam gasification is more suitable for hydrogen production compared to air gasification under specific conditions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Thanh Son Phan, Doan Pham Minh, Fabienne Espitalier, Ange Nzihou, Didier Grouset
Summary: This work examined different processes of hydrogen production from biogas and concluded that the H-2-TRM0.3C process, which utilizes the TRM technique with partial tail gas recycling, is the best option due to its high hydrogen production rate and energy yield. Furthermore, this process was found to be more efficient than the actual industrial process.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Agricultural Engineering
C. Van Vlierberghe, R. Escudie, N. Bernet, G. Santa-Catalina, S. Frederic, H. Carrere
Summary: This study investigated an innovative process that combines storage and alkali pretreatment using lime as a reactant. Results showed that efficient alkaline storage and an increase in Biochemical Methane Potential (BMP) were achieved under dry conditions, while wet conditions led to BMP loss.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Environmental
Arini Wresta, Neni Sintawardani, Sanggono Adisasmito, Tonni Agustiono Kurniawan, Tjandra Setiadi
Summary: The study demonstrated that self-sustaining methane production from tofu whey resulted in VFA neutralization effect and maintained a stable pH value. The technology offers environmental and economic benefits based on energy-saving and greenhouse gas emission reduction, as indicated by the experimental data.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Johan Niskanen, Dick Magnusson
Summary: This study examines the development trend of the Swedish agricultural biogas sector, finding that it is currently stagnant with few new plants established. Through interviews with key stakeholders and document studies, the results reveal different growth patterns, stagnation factors, and possible development paths in various regions.
JOURNAL OF CLEANER PRODUCTION
(2021)