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.
Review
Biotechnology & Applied Microbiology
Anurag S. Rathore, Anurag Singh
Summary: The growing interest in utilizing biomass for fuels and chemicals due to environmental concerns has led to advancements in conversion technologies, including thermochemical and biochemical processes. The key focus is on developing catalysts and optimizing process parameters to improve economics. Efforts are being made to utilize cheaper substrates like lignocellulosic biomass and CO2-sequestering algae, with developments in conversion technologies for these biomass sources still evolving. Additionally, there is a strong emphasis on process optimization for deriving platform chemicals from biomass to enhance value and sustainability.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2022)
Review
Green & Sustainable Science & Technology
J. G. B. Churchill, V. B. Borugadda, A. K. Dalai
Summary: The increasing global energy demand and the need to reduce fossil fuel reliance have created a demand for renewable and sustainable fuel sources. This review explores the potential of tall oil, a by-product of the pulping industry, as a feedstock for biofuels. The review provides an overview of tall oil production, purification, and treatment, and investigates recent trends and barriers towards tall oil-derived biofuels.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Engineering, Chemical
Omar Sanchez-Anaya, Fabian S. Mederos-Nieto, Ignacio Elizalde, J. Felipe Sanchez-Minero, Fernando Trejo-Zarraga
Summary: The co-processing of Jatropha curcas L oil and gasoil mixtures showed high conversions of vegetable oils and good desulfurization rates under appropriate conditions.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Article
Engineering, Environmental
Petr Straka, Milos Auersvald, Dan Vrtiska, Hugo Kittel, Pavel Simacek, Petr Vozka
Summary: The hydrotreating of scrap tires pyrolysis oil over commercial Ni-Mo/Al2O3 catalyst was investigated to produce high-quality alternative transportation fuel components. Despite the initial high content of olefins, aromatics, sulfur, and nitrogen, the fuel components obtained after hydrotreating met most fuel specifications. The different fractions of the oil can be used as gasoline, jet fuel, diesel, and marine fuel components by applying additional treatments or blending methods.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Multidisciplinary
Rajagopal Malolan, Kannappan Panchamoorthy Gopinath, Dai-Viet N. Vo, Ramesh Sai Jayaraman, Srikanth Adithya, Pattabhiraman Srinivaasan Ajay, Jayaseelan Arun
Summary: The fossil fuel industry is facing challenges of atmospheric pollution and competition from emerging sectors like electricity, solar, wind, and hydrogen. Green solvents such as ionic liquids and deep eutectic solvents have been developed to efficiently remove sulphur and nitrogen compounds from fuels, increasing biodiesel and bioethanol yields significantly.
ENVIRONMENTAL CHEMISTRY LETTERS
(2021)
Article
Engineering, Chemical
Karolina Dlaskova Jaklova, Lucie Sindelarova, Jan Kohout, Ivana Hradecka, Nikita Sharkov, Ales Vrablik
Summary: This study examined the impact of two types of catalyst deactivation on product quality and catalyst activity, finding that both types had similar effects on the quality of products and catalyst, with the main difference being the duration of catalyst recovery after deactivation.
Article
Chemistry, Multidisciplinary
Sergio Martinez-Villarreal, Maroua Kammoun, Aurore Richel
Summary: Synthetic fuels are crucial for the environmental transition in transportation, and their viability is closely linked to the availability and impact of hydrogen as a source. This review highlights the role of hydrogen in producing synthetic fuels from renewable resources like plant biomass and microalgae.
CURRENT OPINION IN GREEN AND SUSTAINABLE CHEMISTRY
(2023)
Article
Chemistry, Applied
Yi Liu, Yiming Chen, Hongpeng Yu, Fei Guan, Zhanggui Hou, Dechun Cui, Yi Zhang
Summary: This study investigates the conversion of syngas to synthetic natural gas (SNG) and co-production of liquid fuels using bimetallic Ni-Co catalysts under industrially relevant conditions. The synergistic interaction between Ni and Co is found to enhance the activity and total yield of methane and liquid fuels. The optimum operating range for high efficiency co-production of SNG and liquid fuels is determined to be at 550-578 K, H2/CO = 3, 3.0 MPa, and W/F = 5 gcat h mol-1, with the 2Ni-1Co/SiO2 bimetallic catalyst showing promising results.
Article
Chemistry, Physical
Zhusong Xu, Qiang Wei, Luyuan Zhao, Huanqi Kang, Haoze Wang, Xiaodong Liu, Yasong Zhou, Wenbing Huang
Summary: This article presents a method of preparing highly active HDT catalysts using a surfactant-dispersed W precursor. The method achieves the formation of highly dispersed active phases by controlling the structure and surface states of the precursor, thereby enhancing the activity of hydrotreating. Furthermore, the study explores the role of surfactants in controlling the metal-support interaction and the morphology of active phases.
JOURNAL OF CATALYSIS
(2022)
Article
Engineering, Chemical
Kaixuan Chen, Yankai Cao, Huihong Zhu, Hailong Ge, Tao Yang, Zhiming Zhou, Zhenmin Cheng
Summary: Residue catalytic hydrogenation experiments were conducted in a two-stage fixed-bed reactor system to mimic industrial operation. Coke deposition was found to be the main cause of initial stage deactivation, while the deposition of metal sulfides led to slow deactivation in the middle stage. A deactivation model considering catalyst activity as a function of time on stream (TOS) was proposed and applied to the reaction. Deactivation parameters for different catalysts were obtained by fitting experimental data. Multi-bed hydrogenation was shown to effectively increase catalyst life.
Article
Chemistry, Applied
Wei Luo, Siyan Zhang, Dongyu Zhang, Tao Wang, Hang Dong, Min Song, Qiyuan Tang, Zhi Zhou
Summary: Cheap biochar-supported catalyst has a promising application prospect in catalytic pyrolysis, showing catalytic activity for the preparation of high-value fuels and carbon nanotubes. The choice of metal/biochar catalyst has a significant impact on pyrolysis oil and CNTs yield, with Fe-loaded and Cu-loaded catalysts demonstrating contrasting effects. Cu-C is a cheap and efficient catalyst for producing high-value products.
FUEL PROCESSING TECHNOLOGY
(2022)
Review
Chemistry, Physical
Weiping Deng, Yunchao Feng, Jie Fu, Haiwei Guo, Yong Guo, Buxing Han, Zhicheng Jiang, Lingzhao Kong, Changzhi Li, Haichao Liu, Phuc T. T. Nguyen, Puning Ren, Feng Wang, Shuai Wang, Yanqin Wang, Ye Wang, Sie Shing Wong, Kai Yan, Ning Yan, Xiaofei Yang, Yuanbao Zhang, Zhanrong Zhang, Xianhai Zeng, Hui Zhou
Summary: This review article focuses on the state-of-the-art catalytic transformation of lignocellulosic biomass into value-added chemicals and fuels, including the conversion of cellulose, hemicellulose, and lignin, as well as the gasification and pyrolysis of whole biomass. The opportunities, challenges, and prospects of woody biomass valorization are highlighted.
GREEN ENERGY & ENVIRONMENT
(2023)
Review
Green & Sustainable Science & Technology
Nida Khan, Kumarasamy Sudhakar, Rizalman Mamat
Summary: This article discusses the benefits, limitations, and trends of different generations of biofuels, highlighting the importance of the newer generation of biofuels in social, economic, and environmental aspects, and providing information on long-term sustainability. It also emphasizes the use of nanoparticles in the commercialization of biofuels and discusses recent advancements that potentially enable a sustainable energy transition, green economy, and carbon neutrality in the biofuel sector.
Article
Green & Sustainable Science & Technology
Adele Sakhayi, Ali Bakhtyari, Mohammad Reza Rahimpour
Summary: This study investigates the conversion of lignin-derived compounds anisole and cyclohexanone using simulated lignin-derived syngas as an alternative to pure hydrogen. The experiments show high activity, selectivity, and yield under specific conditions, with sensitivity to reaction temperature, pressure, and WHSV.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Thermodynamics
P. Manara, S. Bezergianni, U. Pfisterer
ENERGY CONVERSION AND MANAGEMENT
(2018)
Article
Energy & Fuels
Vasiliki Dagonikou, Stella Bezergianni, Dimitrios Karonis
Article
Green & Sustainable Science & Technology
Loukia P. Chrysikou, Vasiliki Dagonikou, Athanasios Dimitriadis, Stella Bezergianni
JOURNAL OF CLEANER PRODUCTION
(2019)
Article
Green & Sustainable Science & Technology
Mariem Harabi, Soumaya Neji Bouguerra, Fatma Marrakchi, Loukia P. Chrysikou, Stella Bezergianni, Mohamed Bouaziz
Article
Energy & Fuels
Athanasios Dimitriadis, Tine Seljak, Rok Vihar, Urban Zvar Baskovic, Athanasios Dimaratos, Stella Bezergianni, Zissis Samaras, Tomaz Katrasnik
Article
Green & Sustainable Science & Technology
Athanasios Dimitriadis, Loukia P. Chrysikou, George Meletidis, George Terzis, Milos Auersvald, David Kubicka, Stella Bezergianni
Summary: This study investigated the upgrading of pyrolysis bio-oil through mild hydrotreatment, finding that the longest catalyst life was achieved under specific operating conditions. Furthermore, several properties of the initial bio-oil were improved during the upgrading process.
Article
Agricultural Engineering
A. Dimitriadis, D. Liakos, U. Pfisterer, M. Moustaka-Gouni, D. Karonis, S. Bezergianni
Summary: This study found that hydrotreated pyrolysis oil can be miscible with different petroleum streams, and in some cases can even improve fuel characteristics, potentially allowing for its integration in oil refineries.
BIOMASS & BIOENERGY
(2021)
Article
Chemistry, Applied
Athanasios Dimitriadis, George Meletidis, Ulrich Pfisterer, Milos Auersvald, David Kubicka, Stella Bezergianni
Summary: The study demonstrates that by blending BioMates with LCO in hydroprocessing tests, the product quality meets the expected fuel properties, while effectively reducing hydrogen consumption.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Engineering, Environmental
Athanasios Dimitriadis, Loukia P. Chrysikou, Athanasios I. Kokkalis, Lambros I. Doufas, Stella Bezergianni
Summary: The potential of hydroconversion of animal fats has been investigated and validated in an industrially relevant scale. The experimental testing showed that mild hydrotreatment conditions result in low hydrogen consumption and do not significantly affect product quality. The produced fuel has advantages in compression ignition engines and can be blended with fossil diesel, meeting the relevant quality standards. Additionally, a dedicated study on the storage stability of animal fats indicates that they can be stored for several months at ambient conditions.
Article
Energy & Fuels
Athanasios Dimitriadis, Niklas Bergvall, Ann-Christine Johansson, Linda Sandstrom, Stella Bezergianni, Nikos Tourlakidis, Ludek Meca, Pavel Kukula, Leonard Raymakers
Summary: This study explores the integration of bio-based intermediates into petroleum refineries, using a combination of ablative fast pyrolysis and hydroprocessing. The process successfully converts straw into stabilized bio-oil and high bio-content products, which can replace traditional petroleum products.
Proceedings Paper
Materials Science, Multidisciplinary
Vasiliki Dagonikou, Stella Bezergianni, Dimitrios Karonis
MATERIALS TODAY-PROCEEDINGS
(2018)
Article
Green & Sustainable Science & Technology
Loukia P. Chrysikou, Stella Bezergianni, Costas Kiparissides
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2018)
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.