Article
Agricultural Engineering
Ashutosh Agarwal, Young-Tae Jo, Jeong-Hun Park
Summary: The study found that the simultaneous effect of microwave-ultrasound irradiations significantly increased the bio-oil yield from Kraft lignin depolymerization by reducing the repolymerization of reaction intermediates. This led to a higher quality and quantity of bio-oil compared to the individual microwave and ultrasound irradiation processes.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Chemistry, Physical
Yiying Yue, Yu Wang, Junyao Li, Wanli Cheng, Guangping Han, Tao Lu, Chaobo Huang, Qinglin Wu, Jianchun Jiang
Summary: In this study, lignin was used to prepare graphene aerogel for oil/water separation and rapid regeneration. The resultant aerogel exhibited ultralight weight, high porosity, good mechanical properties, and excellent oil and water separation performance. It maintained high oil absorption rates in harsh environments and had rapid regeneration capability, making it suitable for marine oil spill treatment.
Article
Agricultural Engineering
Silawan Sangthong, Worasak Phetwarotai, Muhammad Saifullah Abu Bakar, Benjamas Cheirsilp, Neeranuch Phusunti
Summary: This study comparatively analyzed the potential of palm kernel shell and its isolated lignin for the production of phenol and phenolic compounds via the pyrolysis process. The experimental results showed that the isolated lignin had a higher bio-oil yield and total fraction of phenol and phenolic compounds.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Construction & Building Technology
Mansour Fakhri, Mohammad Amin Norouzi
Summary: This study investigates the use of lignin and waste engine oil as partial substitutes for bitumen in pavement construction. Lignin improves viscosity and high-temperature deformation resistance of asphalt binder, while waste engine oil enhances low-temperature performance but negatively impacts high-temperature rutting performance. Combining both additives may improve overall performance of the binder.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Thermodynamics
Harshal D. Kawale, Nanda Kishore
Summary: The study demonstrates that pyrolysis of Delonix regia and butyl rubber tube waste at 600 degrees C and 1 bar pressure can produce high-quality bio-oil and bio-char. The highest HHV of bio-oil occurs at a DR/TW ratio of 50:50, with the bio-oil mainly consisting of aliphatic and aromatic compounds.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Energy & Fuels
Mingxing Zhao, Jun Hu, Ping Lu, Shiliang Wu, Chao Liu, Yahui Sun
Summary: Efficient conversion of lignin-derived bio-oils to cycloalkanes was achieved using bifunctional RuCoWx/NC catalyst prepared by in situ pyrolysis method. The catalyst exhibited excellent hydrodeoxygenation (HDO) activity towards 4-propylguaiacol and rice husk bio-oil, leading to high yields of propylcyclohexane and hydrocarbons, respectively. The stability of RuCoW0.03/NC catalyst was also confirmed after four cycles.
Article
Polymer Science
Kah Yen Lim, Tengku Arisyah Tengku Yasim-Anuar, Nur Sharmila Sharip, Farhana Aziz Ujang, Hazwani Husin, Hidayah Ariffin, Paridah Md Tahir, Xinping Li, Seng Hua Lee, Mohd Termizi Yusof
Summary: This study aims to produce environmental-friendly phenol-formaldehyde resin by using phenolated lignin and bio-oil extracted from oil palm empty fruit bunch black liquor to substitute phenol. The modified resins were prepared by heating a mixture of phenol-phenol substitute with NaOH and formaldehyde solution, and the physical properties of the resins were tested. Results showed that the substitution of 5% phenolated lignin improved the properties of phenol-formaldehyde resin. The production process of phenolated lignin-phenol-formaldehyde resin was also environmentally beneficial.
Article
Chemistry, Analytical
Ningning Zhou, Jie Yang, Xin Lu, Zhong Xin, Chunbao Xu, Quan (Sophia) He
Summary: The amount of formic acid is crucial in influencing product yields. Acidic extraction conditions benefit product recovery and improve product quality.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Agricultural Engineering
Qian Wang, Songlin Wang, Kai Yao, Haihong Li
Summary: In this study, magnetic lignin/graphene aerogel (FLGA) was successfully fabricated using one-step hydrothermal synthesis and freeze drying. The FLGA exhibited excellent adsorption performance and magnetic properties.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Polymer Science
Wenjian Guo, Shuxin Bai, Yicong Ye
Summary: In this study, the abandoned epoxy resin matrix in composite wastes was pyrolyzed into epoxy resin pyrolytic oil (EPO) and analyzed. The results showed that more than half of the epoxy resin matrix was converted into EPO, mainly consisting of phenol and its derivatives. CF reinforced EPOF composites with comparable strength and ablation rates to CF/PF composites were successfully fabricated, thanks to the good process performance of the EPOF prepolymer.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Energy & Fuels
Lixia Li, Zhechao Huang, Fenghao Shu, Ying Gao, Jinxing Long
Summary: An efficient approach for producing high-quality oxygen-containing fuel from renewable lignin bio-oil has been proposed in this study. The optimized Cu6Ni20/MgO catalyst showed good performance in yielding ethylbenzene and cyclohexanol. Additionally, alkaline MgO effectively suppressed the recondensation of phenolic oligomers, improving the upgrading of lignin bio-oil.
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.
Article
Chemistry, Physical
Nga Tien Lam, Vo Minh Quan, Suwimon Boonrungsiman, Prakit Sukyai
Summary: Hydroxyapatite (HA) plays a crucial role in the proliferation and differentiation of bone cells. Using cellulose nanocrystals (CNCs) as green dispersants to improve the homogenization of HA shows promise in fabricating biocompatible nanocomposite scaffolds. Incorporating HA/CNC nanoparticle suspension into a polyvinyl alcohol (PVA) scaffold enhances its physical and chemical properties, resulting in improved cell attachment, compressive modulus, and promotion of pre-osteoblast proliferation and mineralization.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Energy & Fuels
Elmeri Pienihakkinen, Christian Lindfors, Taina Ohra-aho, Anja Oasmaa
Summary: This study investigated the removal of alkali from forest residues, eucalyptus residues, and wheat straw through water and dilute nitric acid leaching. The results showed that nitric acid leaching increased the organic liquid yield and reduced the alkali content in eucalyptus residues and wheat straw. However, pyrolysis experiments with acid-leached forest residues were unsuccessful.
Article
Thermodynamics
Chao Li, Yuannian Li, Yuchen Jiang, Lijun Zhang, Shu Zhang, Kuan Ding, Bin Li, Shuang Wang, Xun Hu
Summary: Bio-oil is a complex mixture of organics with each group of chemicals showing different responses to pyrolysis temperatures. Staged pyrolysis of poplar sawdust, cellulose, and lignin revealed that 350 degrees C is the critical temperature for the formation of the majority of organics from sawdust and cellulose, while further increase to 550 degrees C mainly promotes aromatization of reaction intermediates from aliphatic components. Staged pyrolysis also enhances charring reactions, resulting in bio-oil with more light organics and the production of carbon-rich and thermally stable biochar.
Article
Chemistry, Multidisciplinary
Sikun Zhang, Lingzhi Ma, Wenqiang Ma, Long Chen, Kai Gao, Shi Yu, Mingming Zhang, Lei Zhang, Gang He
Summary: Two coordinated metallacycles with selenoviologens pendants were synthesized and showed tunable optoelectronic properties. Femtosecond transient absorption experiments revealed that the formation of macrocyclic structure enhanced the stability of radical cation and improved the efficiency of intramolecular charge transfer. Using these metallacycles as photocatalysts achieved improved catalytic efficiency for visible-light-induced reactions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Haifei Liu, Zeyuan Zhang, Chaoqun Mu, Lingzhi Ma, Hongye Yuan, Sanliang Ling, Heng Wang, Xiaopeng Li, Mingming Zhang
Summary: In this study, we report the synthesis of deep blue-emissive metallacages based on hexaphenylbenzene (HPB) through multicomponent coordination-driven self-assembly. These metallacages adopt a prismatic structure with HPB derivatives as the faces and tetracarboxylic ligands as the pillars. Light-harvesting systems were constructed using the metallacages as the energy donors and a naphthalimide derivative (NAP) as the energy acceptor, resulting in bright emission of NAP in the solid state. This study contributes to the development of emissive metallacages as luminescent materials.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Yali Hou, Ruping Shi, Hongye Yuan, Mingming Zhang
Summary: This study presents a general strategy to construct highly emissive perylene diimide-based metallacycles via self-assembly. The fluorescence quantum yields of these assemblies exceed 98%, and they exhibit sensitive fluorescence responses toward picric acid. This research not only provides a rational strategy for preparing highly emissive bowtie-shaped metallacycles, but also sheds light on their usage in the detection of picric acid and associated compounds.
CHINESE CHEMICAL LETTERS
(2023)
Article
Nanoscience & Nanotechnology
Qian Feng, Tianfeng Yang, Lingzhi Ma, Xiaopeng Li, Hongye Yuan, Mingming Zhang, Yanmin Zhang, Lihong Fan
Summary: This study reports a morpholine-functionalized metallacage for lysosome-targeted cell imaging. The efficient host-guest interactions between the metallacage and dyes prevent aggregation and maintain emission in aqueous solutions. The metallacage is used as a vector to deliver dyes of different colors into lysosomes for targeted imaging.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Energy & Fuels
Wenran Gao, Mingming Zhang, Hongwei Wu
Summary: This study investigates bed agglomeration during fast pyrolysis of bio-oil derived fuels in a fluidized-bed reactor and reveals the positive effects of methanol and biochar in reducing tar formation. The results show a positive linear correlation between agglomeration yield and tar formation, indicating the significant impact of tar formation on bed agglomeration of bio-oil derived fuels.
Article
Chemistry, Multidisciplinary
Feng Su, Shunran Zhang, Zhi Chen, Zeyuan Zhang, Zhikai Li, Shuai Lu, Mingming Zhang, Fang Fang, Shimin Kang, Chenxing Guo, Chenliang Su, Xiujun Yu, Heng Wang, Xiaopeng Li
Summary: Molecular geometry plays a crucial role in determining the structural features, physical properties, and functions of materials, but constructing macromolecules with diverse geometries remains a challenge. Researchers have successfully designed and synthesized tetratopic monomers with unique shapes to produce metallo-macromolecules with clearly defined geometries, which were visualized at the single-molecule level. In studies of structure-property relationships, the helicoid metallo-polymer shows high efficiency and geometry-dependent selectivity in wrapping single-walled carbon nanotubes.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Haifei Liu, Chenxing Guo, Zeyuan Zhang, Chaoqun Mu, Qian Feng, Mingming Zhang
Summary: A hexaphenyltriphenylene-based hexatopic pyridyl ligand is designed and used to prepare three hexagonal prismatic metallacages via metal-coordination-driven self-assembly. The metallacages show good host-guest complexation with emissive dyes, which can be used to tune their emission in solution. A mixture of the host metallacages and the guests exhibits white light emission based on their complementary emission colors.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Wenqiang Ma, Sikun Zhang, Liang Xu, Bingjie Zhang, Guoping Li, Bin Rao, Mingming Zhang, Gang He
Summary: Two pyrene-tethered bismoviologen derivatives (Py-BiV2+) were synthesized and used as photosensitizers for visible-light-induced C-P bond formation. These derivatives exhibited fine-tunable opto-electronic properties and showed good catalytic performance for both C(sp3)-P and C(sp2)-P bond formation reactions.
CHINESE CHEMICAL LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Yawen Li, Naiyao Li, Guoping Li, Yi Qiao, Mingming Zhang, Lei Zhang, Qing-Hui Guo, Gang He
Summary: Selenoviologen-based tetracationic cyclophanes with rigid electron-deficient cavities were synthesized through SN2 reactions. These cyclophanes exhibit good redox properties, narrow energy gaps, and strong absorption in the visible range. They were successfully applied to electrochromic devices and visible-light-driven hydrogen production. Host-guest recognitions were demonstrated, and a simplified system for solar energy conversion was achieved.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Review
Polymer Science
Ruoqian Zhang, Rongrong Li, Feihe Huang, Mingming Zhang
Summary: This review summarizes the progress of metallacycle/metallacage-cored supramolecular networks, focusing on the structures connected by covalent or non-covalent interactions. The detailed descriptions of the structures, properties, functions, and applications of such networks are provided to showcase the exciting achievements in this emerging field. The review also highlights the remaining challenges and perspectives to attract more scientists to contribute to this promising area.
PROGRESS IN POLYMER SCIENCE
(2023)
Review
Chemistry, Multidisciplinary
Qian Feng, Rongrong Li, Tingting Gao, Dake Chu, Mingming Zhang
Summary: Due to their attractive three-dimensional structures and adjustable photophysical properties, emissive metallacages have been widely used in recognition and sensing, adsorption and separation, catalysis, etc. Recently, the application of emissive metallacages in the biomedical field has become a hot research topic, as multiple biological functionalities can be easily integrated into metallacage-based platforms to deliver various functions. This review systematically summarizes the applications of emissive metallacages in bio-imaging, delivery, and cancer theranostics. The dilemmas and challenges of metallacage-based biomedical materials are also addressed in this review. We hope that this review will provide guidance for the construction of novel emissive metallacages with biological functions and further advance the development of emissive metallacages as biomedical materials.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Xiaobo Shang, Inho Song, Jeong Hyeon Lee, Jin Chul Kim, Hiroyoshi Ohtsu, Wanuk Choi, Jaeyong Ahn, Ke Gao, Mingming Zhang, Masaki Kawano, Sang Kyu Kwak, Joon Hak Oh
Summary: Chiral self-sorting is crucial for structure formation in nature and chemistry. Perylene diimide (PDI)-based coordination polymers (CPs) with large π-planes offer potential applications in sensors and optoelectronics. The LeuPDI-Cd CPs exhibit unique chiral self-recognition and high sensitivity and selectivity in detecting ethylenediamine. The MetPDI-Cd CPs demonstrate enhanced conductivity and are used in photodetectors and chemiresistive sensors for the detection of toxic phenylhydrazine.
ADVANCED OPTICAL MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Xiaoyan Peng, Xuanhao Wu, Mingming Zhang, Hongye Yuan
Summary: The development of gas sensors that can translate external stimuli into detectable signals has been driven by the demand for monitoring chemical and physical information, air quality, and disease diagnosis. Metal-organic frameworks (MOFs) show promise for manufacturing MOF-coated sensing devices for various applications, including gas sensing, due to their unique physiochemical properties and designability. This article summarizes the latest advances in different types of MOF-based devices for gas sensing, such as chemiresistive sensors, capacitors, field-effect transistors (FETs) or Kelvin probes (KPs), electrochemical sensors, and quartz crystal microbalance (QCM)-based sensors. The surface chemistry and structural characteristics of MOF-coated sensors are carefully analyzed in relation to their sensing behaviors. Challenges and future prospects for the long-term development and practical application of MOF-coated sensing devices are also discussed.
Article
Chemistry, Multidisciplinary
Ruoqian Zhang, Dingyue Hu, Yu Fu, Qian Feng, Chaoqun Mu, Kai Gao, Heping Ma, Ming Liu, Mingming Zhang
Summary: Researchers have reported a series of triazine-based multicomponent metallacages that can efficiently capture and convert sulfur dioxide (SO2) under mild conditions. As the length of the tetracarboxylate ligands increases, the structures of the metallacages change from pyramids to extended octahedrons. These metallacages show good adsorption capacity and remarkable SO2/CO2 selectivity, making them potential candidates for real flue gas desulfurization. Furthermore, they can also convert SO2 into value-added compounds with exceptional efficiency, even when using dilute SO2 as the reactant. This study provides a new approach towards the application of metal-organic complexes for gas adsorption.
Article
Chemistry, Multidisciplinary
Yu-Hang Liu, Yi-Fan Wu, Li-Juan Feng, Rui-Rui Zhao, Shan-Xiao Wang, Ming-Ming Zhang, Dan-Yang Wang, Xiang-Wen Kong, Xiao-Wu Lei
Summary: In this study, a reversible conversion between [DMPZ]MnCl4 and [DMPZ](4)(MnCl6)(MnCl4)(2 & BULL;)(H2O)(2) with adjustable emission colors is reported for the first time using kinetic and thermodynamic controlling strategies. The synchronous structural and emission transformations in single-component organic manganese halides are highlighted.
CHEMICAL COMMUNICATIONS
(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.