Article
Agricultural Engineering
Rahulkumar Maurya, Xinyu Zhu, Borja Valverde-Perez, Boda Ravi Kiran, Thiyam General, Suvigya Sharma, Anil Kumar Sharma, Marianne Thomsen, S. Venkata Mohan, Kaustubha Mohanty, Irini Angelidaki
Summary: This review article focuses on recent updates on remediating industrial wastewater through microalgae cultivation, discussing topics such as enhancing microalgae growth and remediation simultaneously by adding additional nutrients, utilizing nutrient-rich wastewater directly, and discussing various strategies and tools used for microalgae cultivation on industrial wastewater.
BIORESOURCE TECHNOLOGY
(2022)
Review
Plant Sciences
Sabeela Beevi Ummalyma, Ranjna Sirohi, Aswathy Udayan, Pooja Yadav, Abhay Raj, Sang Jun Sim, Ashok Pandey
Summary: Microalgae are cell factories that can be used to produce renewable energy, food, feed, pharmaceuticals, and nutraceuticals. The challenges of mass cultivation and biomass recovery limit the industrial application of microalgae. Cultivating microalgae in wastewater has been encouraged for sustainable bioeconomy. Wastewater from the food industry provides a less-toxic growth medium for low-cost microalgal biomass production. Microalgae are potential biocatalysts for wastewater bioremediation and offer a universal alternative for resource recovery from wastewater.
PHYTOCHEMISTRY REVIEWS
(2023)
Review
Green & Sustainable Science & Technology
Rahul Prasad Singh, Priya Yadav, Indrajeet Kumar, Manoj Kumar Solanki, Rajib Roychowdhury, Ajay Kumar, Rajan Kumar Gupta
Summary: The world is currently grappling with global energy crises and escalating environmental pollution, primarily due to the extensive use of traditional energy sources. However, microalgae, with their high photosynthetic rate, carbohydrate and lipid content, CO2 fixation capacity, and ability to thrive in adverse conditions, have emerged as a promising alternative energy source. This study provides a comprehensive review of recent advancements in microalgae cultivation techniques and explores strategies to enhance lipid production through environmental manipulation.
Review
Energy & Fuels
Sanjeet Mehariya, Rahul Kumar Goswami, Pradeep Verma, Roberto Lavecchia, Antonio Zuorro
Summary: Microalgae biorefineries offer a sustainable alternative to conventional wastewater treatment processes, with potential for lower costs and energy consumption. They provide valuable compounds for biofuel production while effectively combining wastewater treatment and energy production, addressing the environmental problems caused by increasing world population and energy demand.
Article
Energy & Fuels
Elena Spennati, Alessandro A. Casazza, Attilio Converti, Guido Busca
Summary: Current innovations in microalgae technology include the use of wastewater as a cultivation medium for renewable energy generation and wastewater treatment. This study investigated the thermal pyrolysis of a co-culture of Chlorella vulgaris and Arthrospira platensis grown in winery wastewater. The results showed that thermal pyrolysis can recover the energy potential of microalgae co-cultures used for wastewater treatment.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Thermodynamics
Yingdong Zhou, Javier Remon, Jesus Gracia, Zhicheng Jiang, Jose Luis Pinilla, Changwei Hu, Isabel Suelves
Summary: This study explores the use of "sea-thermal" treatment of the microalgae Chlorella Vulgaris to produce energy-dense biofuels and value-added liquid products. The processing conditions and reaction medium were found to significantly affect the yields and properties of the products. Low temperatures and short reaction times favored the formation of biocrude, while high temperatures and prolonged processing times promoted the repolymerization of the biocrude to hydrochar. The salinity of the seawater also played a role in these transformations.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Energy & Fuels
Juan Felix Gonzalez, Teresa Belen Cuello, Antonio Jose Calderon, Manuel Calderon, Jeronimo Gonzalez, Diego Carmona
Summary: This study analyzed the biomass productivity and growth curves of three indigenous microalgae species collected from different reservoirs, indicating that the culture medium significantly affects biomass productivity and growth rate. The La Orden microalga showed the best adaptability to climatic conditions and lower lipid content compared to other species.
Review
Agricultural Engineering
Aristotle T. Ubando, Earle Anderson S. Ng, Wei-Hsin Chen, Alvin B. Culaba, Eilhann E. Kwon
Summary: Microalgal biorefineries offer an opportunity for economically and environmentally sound production of bioproducts, but face technological bottlenecks due to energy-intensive processes. Life cycle assessment studies have provided strategic technologies and metrics for sustainable production of microalgal biofuels.
BIORESOURCE TECHNOLOGY
(2022)
Review
Biotechnology & Applied Microbiology
Kanika Arora, Pradeep Kumar, Debajyoti Bose, Xiangkai Li, Saurabh Kulshrestha
Summary: Algae have become a promising green fuel source globally, with wide applications in industries such as pharmaceuticals and cosmetics. Their remarkable ability to convert CO2 into biofuels and high-value compounds, as well as their role in producing a large amount of oxygen through photosynthesis, make them effective in mitigating the impacts of air pollution.
Article
Environmental Sciences
K. Rohitha Thangam, A. Santhiya, S. R. Abinaya Sri, D. MubarakAli, S. Karthikumar, R. Shyam Kumar, N. Thajuddin, Michael Rahul Soosai, P. Varalakshmi, I. Ganesh Moorthy, Arivalagan Pugazhendhi
Summary: The study utilized biorefinery approaches for the coupled process of phycoremediation and biofuel production using freshwater microalgae. Scenedesmus sp. was able to utilize various nutrients in domestic wastewater for growth, contributing to wastewater treatment and biomass production. The production included lipid and bioethanol, with various techniques such as FT-IR and GC-MS used for analysis.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Agricultural Engineering
Ankit Agarwalla, Sanjeev Mishra, Kaustubha Mohanty
Summary: This study investigates the suitability of using powdered activated carbon (PAC) treated effluent based culture (EBC) media for cultivating Monoraphidium sp. KMC4. The results show that EBC media treated with 30 mg L-1 PAC significantly enhances biomass yield and achieves good growth and water-saving effects in the recyclability study.
BIORESOURCE TECHNOLOGY
(2022)
Review
Environmental Sciences
Pengfei Cheng, Yantao Li, Chun Wang, Jiameng Guo, Chengxu Zhou, Renchuan Zhang, Yiwei Ma, Xiaochen Ma, Lu Wang, Yanling Cheng, Xiaojun Yan, Roger Ruan
Summary: Marine microalgae have the potential to be used as feedstock for biofuels and other valuable compounds, but currently it is not economically viable. Developing efficient cultivation systems and production modes, as well as screening dominant algal strains, are necessary for utilizing algal biomass for biorefinery applications.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Green & Sustainable Science & Technology
Matheus Quintao Braga, Iara Barbosa Magalhaes, Carolina Ferrari Silveira, Eduardo Couto, Maria Lucia Calijuri, Paula Assemany
Summary: Microalgae-based wastewater treatments not only reduce organic and nutrient load in sewage, but also facilitate the recovery of important resources like N and P for biofuels and animal feed production. This study proposes a treatment system that combines an up-flow anaerobic reactor (UASB) and high-rate algae ponds (HRAPs), promoting circular economy and resource recovery. By selecting suitable areas using Geographic Information Systems, the proposed system shows excellent suitability in two regions of Minas Gerais (Brazil), covering 59 municipalities with a capacity of 43,565 m3/day of raw sewage that can be used for irrigation and fish farming after treatment. Moreover, the system has the potential to produce various valuable products, such as microalgae biomass for energy production, nutrients for animal feed, beta-carotene, biodiesel, Omega-3, glycerol, and ethanol.
JOURNAL OF CLEANER PRODUCTION
(2022)
Review
Agricultural Engineering
Nisha Singh, Reeta Rani Singhania, Poonam S. Nigam, Cheng-Di Dong, Anil Kumar Patel, Munish Puri
Summary: The bioprocessing of lignocellulosic biomass to produce bio-based products is gaining global attention under biorefinery setup. However, the commercial success at industrial scale is still inadequate due to irregular biomass supply chain, market uncertainties, and scale-up challenges. Global research efforts by public and private sectors are underway to achieve deeper market penetration for the commercial success of lignocellulosic biorefineries.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Environmental
Dendera Munguia-Aguilar, Hector A. Ruiz, Elias Razo-Flores, Cesar Nieto-Delgado, Edith Cadena-Chamorro, Felipe Alatriste-Mondragon
Summary: The efficiency of enzymatic saccharification of lignocellulosic biomass can be improved by a sequential process of hydrothermal pretreatment followed by enzymatic hydrolysis, resulting in higher release of sugars and methane production.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Energy & Fuels
Abrar Faisal, Fahed Javed, Mohsan Hassan, M. R. Gorji, Sarfaraz Akram, Naim Rashid, Fahad Rehman
Summary: To meet the increasing energy demands, researchers have discovered that chicken fat could be a potential resource for biodiesel production. By analyzing the flow behavior of chicken fat and its rheological properties, it was found that chicken fat exhibits time-dependent non-Newtonian thixotropy fluid, which is significant for biodiesel production.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Biotechnology & Applied Microbiology
S. Shaikh, N. Rashid, G. McKay, A. R. Liberski, H. R. Mackey
Summary: This research investigates the integration of purple non-sulfur bacteria (PNSB) biomass production with treatment of fuel synthesis wastewater (FSW) for a low-cost substrate and improved harvesting through biofilm formation. The study shows that a nitrogen-deficient biofilm-based system has potential to reduce costs while producing high value-added resources.
BIOCHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Fahed Javed, William B. Zimmerman, Tahir Fazal, Ainy Hafeez, Maria Mustafa, Naim Rashid, Fahad Rehman
Summary: A new heterogeneous catalyst was developed by modifying a metal-organic framework with biomaterials and integrating it with microbubble mediated mass transfer technology. The catalyst achieved high conversion and reaction rate, and showed good stability.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Environmental Sciences
Muhammad Tayyab Khalid, Tanzila Anjum, Asim Laeeq Khan, Fahad Rehman, Muhammad Aslam, Mazhar Amjad Gilani, Faheem Hassan Akhtar, Mungyu Lee, In Seop Chang, Muhammad Yasin
Summary: Polyimide (P84)-based polymeric membranes were fabricated and used as spargers in the bubble column reactor (BCR) to enhance the gas-liquid mass transfer (GL-MT) rate of oxygen in water. Incorporating polyvinyl pyrrolidone (PVP) as a porogen and a Zeolitic Imidazolate Framework (ZIF-8) resulted in high porosity and hydrophobicity in the membranes, leading to increased GL-MT efficiency. The study demonstrated that ZIF-8 based membranes have the potential to improve dissolved oxygen concentration in BCR through bubble size reduction, increased bubble number, and improved hydrophobicity.
Review
Energy & Fuels
Muhammad Shahbaz, Naim Rashid, Junaid Saleem, Hamish Mackey, Gordon McKay, Tareq Al-Ansari
Summary: Globally, the oil and gas industry generates significant amounts of waste, such as produced water, oil sludge, and flue gases, which have a negative impact on the environment. It is crucial to implement treatment and safe handling measures for this waste. Recent research indicates that for sustainable waste management in the oil and gas industry, it should be coupled with resource recovery and re-utilization concepts as part of a circular economy approach. This involves converting waste into valuable products, reducing environmental impacts, and supporting industry sustainability.
Article
Chemistry, Multidisciplinary
Sajjad Hussain, Muhammad Hafi Wadgama, Asim Laeeq Khan, Muhammad Yasin, Faheem Hassan Akhtar
Summary: Waste plastic upcycling is gaining attention for membrane fabrication, but existing literature is limited. This study presents the performance of membranes made from recycled PET for water desalination. Optimization of membrane performance was achieved through fine-tuning PET, cosolvent, and additive concentration, and coagulation bath temperature. The study also demonstrated the use of PET membranes as support for thin-film composite membranes with high permeance and NaCl rejection. These findings offer prospects for high-performance membranes using commercial plastic waste.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Environmental Sciences
Muhammad Maaz, Muhammad Aslam, Muhammad Yasin, Asim Laeeq Khan, Azeem Mushtaq, Tahir Fazal, Ahmed Muteb Aljuwayid, Mohamed A. Habila, Jeonghwan Kim
Summary: This study investigated the use of biochar in a fluidized bed membrane bioreactor to mitigate membrane fouling. Different types of macroalgal biochar were synthesized at different pyrolysis temperatures and characterized. The results showed that macroalgal biochar could effectively reduce membrane fouling, especially at low gas sparging rate.
Article
Environmental Sciences
Naila Amin, Muhammad Aslam, Zakir Khan, Muhammad Yasin, Shakhawat Hossain, Muhammad Kashif Shahid, Abrar Inayat, Ahmed Samir, Rizwan Ahmad, Mohammad N. Murshed, Muhammad Shahzad Khurram, Mohamed E. El Sayed, Moinuddin Ghauri
Summary: The global municipal solid waste is generating at an alarming rate, posing severe concerns for its disposal. It leads to climate change, health hazards, and other environmental issues. Waste to energy (WTE) is considered as an alternative renewable energy source to address global waste problems. This review evaluates the sources and management routes of solid waste, highlighting gasification as an efficient and sustainable approach. A framework for the gasification process and recommendations for country-wise waste management solutions are provided. Furthermore, the study discusses the potential perspectives and practical implications of membrane-based separation technology for bioenergy recovery.
Article
Environmental Sciences
Muneeb Abdullah, Javed Iqbal, Muhammad Saif Ur Rehman, Usman Khalid, Fahad Mateen, Salman Noshear Arshad, Abdullah G. Al-Sehemi, Hamed Algarni, Omar A. Al-Hartomy, Tahir Fazal
Summary: The water pollution caused by pharmaceutical products, such as the antibiotic ceftriaxone (CEF), has become a major concern for the sustainability of ecosystems and human health. Even at low concentrations, CEF has lethal effects. TiO2 is considered an effective nanoparticles for CEF removal, but its performance is hindered by a wider energy gap and rapid recombination of charge carriers. This study synthesized activated carbon based TiO2 (ACT-X) nanocomposites to improve TiO2's intrinsic properties and enhance its adsorption-photocatalytic performance for CEF removal.
Article
Energy & Fuels
Abrar Inayat, Farrukh Jamil, Shams Forruque Ahmed, Muhammad Ayoub, Peer Mohamed Abdul, Muhammad Aslam, M. Mofijur, Zakir Khan, Ahmad Mustafa
Summary: The potential of surface fibers from date palm waste as feedstock for bio-oil production was investigated. Chemical composition analysis and physiochemical characterization indicated that surface fibers are valuable feedstock for energy production. Thermogravimetric analysis showed that the decomposition of surface fibers occurs in three stages: dehydration, devolatilization, and solid combustion.
Article
Environmental Sciences
Fahed Javed, Naim Rashid, Tahir Fazal, Ainy Hafeez, Fahad Rehman
Summary: This study demonstrates that merging two wastewater streams can improve the efficiency of wastewater treatment and eliminate the need for freshwater.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Materials Science, Multidisciplinary
Junaid Yaqoob, Sobia Tabasssum, Tariq Mahmood, Khurshid Ayub, Asim Laeeq Khan, Muhammad Yasin, R. Nawaz, Mazhar Amjad Gilani
Summary: This study used density functional theory computations to investigate the impact of alkali metal (Li, Na, and K) doping on the nonlinear optical response of germanium carbide nanoclusters. The results showed that alkali metal doping significantly enhanced the nonlinear optical response of the complexes. This research provides useful insights for the development of novel germanium carbide-based materials with improved nonlinear optical response.
Review
Biotechnology & Applied Microbiology
Sultan Shaikh, Naim Rashid, Gordon Mckay, Hamish Robert Mackey
Summary: This review paper provides an overview of various types of photobioreactors that could be used for PHA production using anoxygenic photoheterotrophs. It focuses on the design and operation of these systems, highlighting their potential, advantages, and disadvantages. The optimization of reactor design and operation is crucial for maximizing PNSB growth and PHA productivity.
FERMENTATION-BASEL
(2023)
Article
Microbiology
S. Shaikh, N. Rashid, U. Onwusogh, G. McKay, H. R. Mackey
Summary: This research explores the use of fuel synthesis wastewater as a low-cost carbon-rich substrate for the production of purple non-sulphur bacteria (PNSB) and the formation of PNSB biofilm to achieve efficient biomass-liquid separation. It is found that the N-deficient condition is the most effective in promoting biofilm formation, with a production 2.5 times greater than the control condition. Although the highest overall biomass growth is achieved in the control condition, the N-deficient condition offers a cost-effective means for maximizing biofilm production without sacrificing protein content.
Article
Engineering, Chemical
Razia Talib, Zakir Khan, Shahzad Khurram, Abrar Inayat, Moinuddin Ghauri, Mohsin Abbas, Ian Watson
Summary: This study examines a novel heat integration system that utilizes waste energy to reduce carbon emissions and mitigate global warming. By coupling an Internal Combustion Engine (ICE), Boiler, and Organic Rankine Cycle (ORC), the waste heat from industrial boilers is efficiently harnessed to enhance the thermal and electric efficiency of a thermal power plant. The results demonstrate the significant technical and economic potential of this system in enhancing energy efficiency.
ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING
(2023)
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.