Article
Engineering, Chemical
Songlin Liu, Weidong Fan, Jun Chen, Hao Guo
Summary: This study establishes a model of NO and N2O in air-staged combustion, successfully predicting the secondary increase of NO and the occurrence of N2O. The formation mechanism of NO and N2O is further explored through simulating the combustion atmosphere.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Energy & Fuels
Jisong Bai, Dan Yin, Wei Gan, Fucan Deng, Quanwei Lv, Xiong Zhou, Shunhong Lin, Chunjiang Yu
Summary: This study investigated the formation characteristics of NO and N2O during the combustion of five amino acids and found that N2O yield can be comparable to or even much higher than that of NO. The results also showed that the nitrogen conversion during biomass combustion is greatly influenced by the biomass main components and the type of amino acids. This research provides valuable insights into the fundamental mechanism of fuel-N conversion during biomass combustion.
JOURNAL OF THE ENERGY INSTITUTE
(2022)
Article
Environmental Sciences
Haiyang Yu, Xing Han, Xuechen Zhang, Xiangtian Meng, Zhengfu Yue, Xinhui Liu, Ningguo Zheng, Yaying Li, Yongxiang Yu, Huaiying Yao
Summary: Tea gardens are highly emitting hotspots for nitrogen oxide (N2O and NO) emissions, and these emissions are influenced by different fertilizer regimes and controlling factors. Fertilization significantly increases N2O and NO emissions, but organic fertilizer, combined fertilizer, biochar amendment, and inhibitor amendment can effectively reduce these emissions. On a global scale, fertilization increases mean N2O and NO emissions from global tea gardens, while inhibitors and biochar reduce these emissions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Review
Engineering, Environmental
Young-Kwon Park, Beom-Sik Kim
Summary: Ammonia is a promising fuel candidate with reliable combustion properties and potential for mass production from renewable resources. However, its combustion releases high levels of NOx emissions, posing air quality and health problems. This review explores recent studies on mitigating NOx emissions from ammonia combustion processes and comprehensively scrutinizes catalytic deNOx technologies.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Agriculture, Multidisciplinary
Jianzheng Li, Ligang Wang, Zhongkui Luo, Enli Wang, Guocheng Wang, Han Zhou, Hu Li, Shiwei Xu
Summary: The study showed that optimizing with daily N2O emissions can improve model accuracy, and the posterior distributions of key parameters provide a reference range for future model improvement and applications. The results also indicated a potential to optimize nitrogen fertiliser rate in order to reduce N2O emissions while maintaining crop yield in an irrigated wheat-maize rotation system.
AGRICULTURAL SYSTEMS
(2021)
Article
Agriculture, Multidisciplinary
Gokul Prasad Mathivanan, Max Eysholdt, Maximilian Zinnbauer, Claus Roesemann, Roland Fuss
Summary: A meta-analysis was conducted to determine country-specific and stratified N2O emission factors for direct agricultural emissions in Germany. It was found that northern districts had relatively lower emission factors than southern districts. The national implied emission factor for direct N2O emissions from managed agricultural soils was 0.62%, which is 8.59% lower than the estimate reported in the 2021 inventory submission to UNFCCC.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2021)
Article
Environmental Sciences
Fei Gong, Yijia Sun, Tao Wu, Fei Chen, Bin Liang, Juan Wu
Summary: Excessive use of nitrogen fertilizer in greenhouse vegetable production results in significant nitrogen loss, but using N-reducing fertilizer and applying straw can effectively reduce nitrogen loss and improve soil quality.
Review
Environmental Sciences
Waqas Qasim, Longlong Xia, Shan Lin, Li Wan, Yiming Zhao, Klaus Butterbach-Bahl
Summary: Excessive nitrogen fertilizer use in greenhouse vegetable production leads to low nitrogen use efficiency and high nitrogen losses, which can be mitigated by reducing fertilizer application rates.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Sebastian Vangeli, Laura M. Cardenas, Gabriela Posse, Dave R. Chadwick, Dominika J. Krol, Rachel E. Thorman, Gary J. Lanigan, Tom H. Misselbrook
Summary: According to available guidelines, it is recommended to measure nitrous oxide (N2O) emissions for at least one year after nitrogen (N) application or deposition. However, experimental data suggests that most emissions occur in the first few months after N application. This study aimed to evaluate the contribution of N2O flux in the immediate period after N application to the annual net emission. The results showed that accurate estimation of emission factors (EFs) could be achieved by measuring N2O flux for a shorter period, with significant resource-saving potential.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Energy & Fuels
Krister A. Pedersen, Michal T. Lewandowski, Corinna Schulze-Netzer, Michal Pasternak, Terese Lovas
Summary: The combustion of ammonia in internal combustion engines (ICE) leads to high concentrations of nitrogen-related exhaust emissions, including nitrous oxide (N2O) and nitrogen oxides (NOx). The study shows that the incomplete combustion of ammonia contributes to the increased formation of N2O. The fuel composition affects the contribution of different mechanisms to NOx emissions, and thermal NO contribution becomes fuel-independent at high temperatures. Decreased carbon content in the fuel results in lower soot concentrations. In fuel-rich regimes and fully burned conditions, low concentrations of NOx and N2O emissions are observed.
Article
Environmental Sciences
Michalis Omirou, Coralea Stephanou, Ioannis Anastopoulos, Laurent Philippot, Ioannis M. Ioannides
Summary: This study evaluated how tetracycline affects N2O emissions and the abundance of denitrifiers in fertilized soil. The results showed that NH4NO3 in fertilized soil increased N2O emissions and abundance of AOB, while tetracycline did not mitigate these emissions. However, higher doses of tetracycline may have a positive effect on reducing N2O emissions in the long term.
ENVIRONMENTAL RESEARCH
(2022)
Article
Soil Science
J. C. Dlamini, E. H. Tesfamariam, M. Verbeeck, N. Loick, A. Louro-Lopez, J. M. B. Hawkins, M. S. A. Blackwell, R. M. Dunn, A. L. Collins, L. M. Cardenas
Summary: Riparian buffers play a crucial role in improving water quality in agricultural landscapes, but the choice of vegetation and management practices can impact soil microbial communities and subsequently affect nutrient cycling and gas emissions. A study investigated the fluxes of nitric oxide (NO), nitrous oxide (N2O), nitrogen gas (N-2), and carbon dioxide (CO2) in soil samples collected from different types of riparian buffers. The results showed that grass riparian buffers had higher potential denitrification rates and were efficient in removing NO3-, while willow riparian buffers promoted complete denitrification to N-2, making them effective in areas with similar conditions.
SOIL USE AND MANAGEMENT
(2023)
Article
Green & Sustainable Science & Technology
Valeria Viana Pereira, Marina Moura Morales, Dalton Henrique Pereira, Fabiana Abreu de Rezende, Ciro Augusto de Souza Magalhaes, Larissa Borges de Lima, Ben Hur Marimon-Junior, Fabiano Andre Petter
Summary: This study investigated the impact of nitrogenous organomineral fertilizers (OMF-N) formulated based on activated biochar on leaching and N2O emissions. The results showed that OMF-N can reduce leaching and N2O emissions and increase nitrogen retention.
Article
Agronomy
Jan Horak, Tatijana Kotus, Lucia Tokova, Elena Aydin, Dusan Igaz, Vladimir Simansky
Summary: Recent studies have shown that the application of biochar to soil can improve soil properties and reduce N2O emissions, especially in cases of repeated application, higher application rates, and higher levels of N fertilization. Initial and repeated biochar applications have proven to be effective in enhancing soil quality and mitigating greenhouse gas emissions, particularly by increasing soil pH.
Article
Energy & Fuels
Songlin Liu, Weidong Fan, Xiaofeng Wu, Jun Chen, Zhuang Liu, Hao Guo
Summary: The study found that the limited reduction ability of coal may not completely prevent the second rise of NO, while three reaction pathways for N2O heterogeneous reduction were identified in oxidizing atmospheres. Additionally, the reduction ability of coal is affected by temperature and oxygen concentration.
Article
Chemistry, Applied
Alexander Gissibl, Andrew Care, Lindsay M. Parker, Sameera Iqbal, Graham Hobba, Helena Nevalainen, Anwar Sunna
CARBOHYDRATE POLYMERS
(2018)
Article
Plant Sciences
Angela Sun, Mafruha Tasnin Hasan, Graham Hobba, Helena Nevalainen, Junior Te'o
JOURNAL OF PHYCOLOGY
(2018)
Article
Biotechnology & Applied Microbiology
Bishal Khatiwada, Liisa Kautto, Anwar Sunna, Angela Sun, Helena Nevalainen
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2019)
Article
Biotechnology & Applied Microbiology
Alexander Gissibl, Andrew Care, Angela Sun, Graham Hobba, Helena Nevalainen, Anwar Sunna
JOURNAL OF INDUSTRIAL MICROBIOLOGY & BIOTECHNOLOGY
(2019)
Article
Biochemistry & Molecular Biology
Zhiping Han, Liisa Kautto, Wieland Meyer, Sharon C. -A. Chen, Helena Nevalainen
CANADIAN JOURNAL OF MICROBIOLOGY
(2019)
Review
Biotechnology & Applied Microbiology
Alexander Gissibl, Angela Sun, Andrew Care, Helena Nevalainen, Anwar Sunna
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2019)
Article
Biotechnology & Applied Microbiology
Mafruha T. Hasan, Angela Sun, Bishal Khatiwada, Leon McQuade, Mehdi Mirzaei, Junior Te'o, Graham Hobba, Anwar Sunna, Helena Nevalainen
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2019)
Article
Biotechnology & Applied Microbiology
Bishal Khatiwada, Mafruha T. Hasan, Angela Sun, Karthik Shantharam Kamath, Mehdi Mirzaei, Anwar Sunna, Helena Nevalainen
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2020)
Article
Microbiology
Bishal Khatiwada, Mafruha T. Hasan, Angela Sun, Karthik Shantharam Kamath, Mehdi Mirzaei, Anwar Sunna, Helena Nevalainen
Review
Biotechnology & Applied Microbiology
Bishal Khatiwada, Anwar Sunna, Helena Nevalainen
BIOTECHNOLOGY AND BIOENGINEERING
(2020)
Article
Microbiology
Elizabeth L. I. Wightman, Heinrich Kroukamp, Isak S. Pretorius, Ian T. Paulsen, Helena K. M. Nevalainen
Review
Agricultural Engineering
Hillol Chakdar, Mafruha Hasan, Sunil Pabbi, Helena Nevalainen, Pratyoosh Shukla
Summary: Eukaryotic microalgae are a valuable source of commercially important metabolites, but their genetic potential alone is often insufficient for high-level production of desired products. Understanding metabolic pathways and utilizing contemporary proteomic and metabolomic techniques can help redesign pathways to increase production of algal metabolites.
BIORESOURCE TECHNOLOGY
(2021)
Article
Microbiology
Danny Haelewaters, Robyn A. Peterson, Helena Nevalainen, M. Catherine Aime
Summary: The pink yeast Sporobolomyces lactosus is classified in the new genus Inopinatum, representing the first reported pink yeast in Leotiomycetes. A molecular phylogenetic analysis revealed its close relationship with Pseudeurotium zonatum in Thelebolales.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Elizabeth L. I. Wightman, Heinrich Kroukamp, Isak S. Pretorius, Ian T. Paulsen, Helena K. M. Nevalainen
BIOTECHNOLOGY FOR BIOFUELS
(2020)
Article
Multidisciplinary Sciences
Jashanpreet Kaur, Liisa Kautto, Anahit Penesyan, Wieland Meyer, Liam D. H. Elbourne, Ian T. Paulsen, Helena Nevalainen
SCIENTIFIC REPORTS
(2019)
Article
Energy & Fuels
Yingna Du, Chen Huang, Wei Jiang, Qiangwei Yan, Yongfei Li, Gang Chen
Summary: In this study, anionic surfactants modified hydrotalcite was used as a flow improver for crude oil under low-temperature conditions. The modified hydrotalcite showed a significant viscosity reduction effect on crude oil. The mechanism of the modified hydrotalcite on viscosity and pour point of crude oil was explored through characterization and analysis of the modified hydrotalcite and oil samples.
Article
Energy & Fuels
Mohammad Saeid Rostami, Mohammad Mehdi Khodaei
Summary: In this study, a hybrid structure, MIL-53(Al)@MWCNT, was synthesized by combining MIL-53(Al) particles and -COOH functionalized multi-walled carbon nanotube (MWCNT). The hybrid structure was then embedded in a polyethersulfone (PES) polymer matrix to prepare a mixed matrix membrane (MMM) for CO2/CH4 and CO2/N2 separation. The addition of MWCNTs prevented MIL-53(Al) aggregation, improved membrane mechanical properties, and enhanced gas separation efficiency.
Article
Energy & Fuels
Yunlong Li, Desheng Huang, Xiaomeng Dong, Daoyong Yang
Summary: This study develops theoretical and experimental techniques to determine the phase behavior and physical properties of DME/flue gas/water/heavy oil systems. Eight constant composition expansion (CCE) tests are conducted to obtain new experimental data. A thermodynamic model is used to accurately predict saturation pressure and swelling factors, as well as the phase boundaries of N2/heavy oil systems and DME/CO2/heavy oil systems, with high accuracy.
Article
Energy & Fuels
Morteza Afkhamipour, Ebad Seifi, Arash Esmaeili, Mohammad Shamsi, Tohid N. Borhani
Summary: Non-conventional amines are being researched worldwide to overcome the limitations of traditional amines like MEA and MDEA. Adequate process and thermodynamic models are crucial for understanding the applicability and performance of these amines in CO2 absorption, but studies on process modeling for these amines are limited. This study used rate-based modeling and Deshmukh-Mather method to model CO2 absorption by DETA solution in a packed column, validated the model with experimental data, and conducted a sensitivity analysis of mass transfer correlations. The study also compared the CO2 absorption efficiency of DETA solution with an ionic solvent [bmim]-[PF6] and highlighted the importance of finding optimum operational parameters for maximum absorption efficiency.
Article
Energy & Fuels
Arastoo Abdi, Mohamad Awarke, M. Reza Malayeri, Masoud Riazi
Summary: The utilization of smart water in EOR operations has gained attention, but more research is needed to understand the complex mechanisms involved. This study investigated the interfacial tension between smart water and crude oil, considering factors such as salt, pH, asphaltene type, and aged smart water. The results revealed that the hydration of ions in smart water plays a key role in its efficacy, with acidic and basic asphaltene acting as intrinsic surfactants. The pH also influenced the interfacial tension, and the aged smart water's interaction with crude oil depended on asphaltene type, salt, and salinity.
Article
Energy & Fuels
Dongao Zhu, Kun Zhu, Lixian Xu, Haiyan Huang, Jing He, Wenshuai Zhu, Huaming Li, Wei Jiang
Summary: In this study, cobalt-based metal-organic frameworks (Co-based MOFs) were used as supports and co-catalysts to confine the NHPI catalyst, solving the leaching issue. The NHPI@Co-MOF with carboxyl groups exhibited stronger acidity and facilitated the generation of active oxygen radicals O2•, resulting in enhanced catalytic activity. This research provides valuable insights into the selection of suitable organic linkers and broadens the research horizon of MOF hybrids in efficient oxidative desulfurization (ODS) applications.
Article
Energy & Fuels
Edwin G. Hoyos, Gloria Amo-Duodu, U. Gulsum Kiral, Laura Vargas-Estrada, Raquel Lebrero, Rail Munoz
Summary: This study investigated the impact of carbon-coated zero-valent nanoparticle concentration on photosynthetic biogas upgrading. The addition of nanoparticles significantly increased microalgae productivity and enhanced nitrogen and phosphorus assimilation. The presence of nanoparticles also improved the quality of biomethane produced.
Article
Energy & Fuels
Yao Xiao, Asma Leghari, Linfeng Liu, Fangchao Yu, Ming Gao, Lu Ding, Yu Yang, Xueli Chen, Xiaoyu Yan, Fuchen Wang
Summary: Iron is added as a flocculant in wastewater treatment and the hydrothermal carbonization (HTC) of sludge produces wastewater containing Fe. This study investigates the effect of aqueous phase (AP) recycling on hydrochar properties, iron evolution and environmental assessment during HTC of sludge. The results show that AP recycling process improves the dewatering performance of hydrochar and facilitates the recovery of Fe from the liquid phase.
Article
Energy & Fuels
He Liang, Tao Wang, Zhenmin Luo, Jianliang Yu, Weizhai Yi, Fangming Cheng, Jingyu Zhao, Xingqing Yan, Jun Deng, Jihao Shi
Summary: This study investigated the influence of inhibitors (carbon dioxide, nitrogen, and heptafluoropropane) on the lower flammability limit of hydrogen and determined the critical inhibitory concentration needed for complete suppression. The impact of inhibitors on explosive characteristics was evaluated, and the inhibitory mechanism was analyzed with chemical kinetics. The results showed that with the increase of inhibitor quantity, the lower flammability limit of hydrogen also increased. The research findings can contribute to the safe utilization of hydrogen energy.
Article
Energy & Fuels
Zonghui Liu, Zhongze Zhang, Yali Zhou, Ziling Wang, Mingyang Du, Zhe Wen, Bing Yan, Qingxiang Ma, Na Liu, Bing Xue
Summary: In this study, high-performance solid catalysts based on phosphotungstic acid (HPW) supported on Zr-SBA-15 were synthesized and evaluated for the one-pot conversion of furfural (FUR) to γ-valerolactone (GVL). The catalysts were characterized using various techniques, and the ratio of HPW and Zr was found to significantly affect the selectivity of GVL. The HPW/Zr-SBA-15 (2-4-15) catalyst exhibited the highest GVL yield (83%) under optimized reaction conditions, and it was determined that a balance between Bronsted acid sites (BAS) and Lewis acid sites (LAS) was crucial for achieving higher catalytic performance. The reaction parameters and catalyst stability were also investigated.
Article
Energy & Fuels
Michael Stoehr, Stephan Ruoff, Bastian Rauch, Wolfgang Meier, Patrick Le Clercq
Summary: As part of the global energy transition, an experimental study was conducted to understand the effects of different fuel properties on droplet vaporization for various conventional and alternative fuels. The study utilized a flow channel to measure the evolution of droplet diameters over time and distance. The results revealed the temperature-dependent effects of physical properties, such as boiling point, liquid density, and enthalpy of vaporization, and showed the complex interactions of preferential vaporization and temperature-dependent influences of physical properties for multi-component fuels.
Article
Energy & Fuels
Yuan Zhuang, Ruikang Wu, Xinyan Wang, Rui Zhai, Changyong Gao
Summary: Through experimental validation and optimization of the chemical kinetic model, it was found that methanol can accelerate the oxidation reaction of ammonia, and methanol can be rapidly oxidized at high concentration. HO2 was found to generate a significant amount of OH radicals, facilitating the oxidation of methanol and ammonia. Rating: 7.5/10.
Article
Energy & Fuels
Radwan M. EL-Zohairy, Ahmed S. Attia, A. S. Huzayyin, Ahmed I. EL-Seesy
Summary: This paper presents a lab-scale experimental study on the impact of diethyl ether (DEE) as an additive to waste cooking oil biodiesel with Jet A-1 on combustion and emission features of a swirl-stabilized premixed flame. The addition of DEE to biodiesel significantly affects the flame temperature distribution and emissions. The W20D20 blend of DEE, biodiesel, and Jet A-1 shows similar flame temperature distribution to Jet A-1 and significantly reduces UHC, CO, and NOx emissions compared to Jet A-1.
Article
Energy & Fuels
Jiang Bian, Ziyuan Zhao, Yang Liu, Ran Cheng, Xuerui Zang, Xuewen Cao
Summary: This study presents a novel method for ammonia separation using supersonic flow and develops a mathematical model to investigate the condensation phenomenon. The results demonstrate that the L-P nucleation model accurately characterizes the nucleation process of ammonia at low temperatures. Numerical simulations also show that increasing pressure and concentration can enhance ammonia condensation efficiency.
Article
Energy & Fuels
Shiyuan Pan, Xiaodan Shi, Beibei Dong, Jan Skvaril, Haoran Zhang, Yongtu Liang, Hailong Li
Summary: Integrating CO2 capture with biomass-fired combined heat and power (bio-CHP) plants is a promising method for achieving negative emissions. This study develops a reliable data-driven model based on the Transformer architecture to predict the flowrate and CO2 concentration of flue gas in real time. The model validation shows high prediction accuracy, and the potential impact of meteorological parameters on model accuracy is assessed. The results demonstrate that the Transformer model outperforms other models and using near-infrared spectral data as input features improves the prediction accuracy.