Article
Green & Sustainable Science & Technology
Quoc Khanh Tran, Hoang Vu Ly, Byeongwan Kwon, Seung-Soo Kim, Jinsoo Kim
Summary: The study prepared Ni/γ-Al2O3 and Fe/activated carbon catalysts for the hydrodeoxygenation (HDO) of guaiacol, showcasing different conversion rates under varying calcination temperatures and metal loadings.
Article
Chemistry, Physical
Penghui Yan, Eric Kennedy, Michael Stockenhuber
Summary: Ni-Fe catalysts prepared by different impregnation techniques were studied for their activity in the hydrodeoxygenation of guaiacol and hydrogenation of toluene. The study found that the ratio of Ni/Fe significantly influences the hydrodeoxygenation activity, with a catalyst having a Ni/Fe mass ratio of 3.3 exhibiting the highest performance.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Applied
Fei Ge, Haihong Xia, Jing Li, Xiaohui Yang, Minghao Zhou, Jianchun Jiang
Summary: In this work, core-shell Cox@C@Ni catalysts were prepared and applied to catalyze the conversion of guaiacol to cyclohexanol. The catalysts showed better performance compared to Co@C catalyst. The optimal condition achieved nearly 100% conversion of guaiacol and 90% selectivity of cyclohexanol at 220 degrees C for 2 hours using isopropanol as the hydrogen donor solvent. The structure, composition, and acidity of the catalysts played a significant role in the hydrodeoxygenation reaction, and the reaction mechanism was deduced based on product distributions and physicochemical properties.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Qichen Wang, Mingyi Wang, Xuehao Li, Peng Liu, Chuanmin Ding, Lian Wang, Junwen Wang, Kan Zhang, Ping Liu
Summary: In this study, Ni-Fe/AC catalysts were prepared with different proportions of Ni-Fe loading for vapor phase carbonylation of ethanol to produce propionic acid. The introduction of Fe into Ni/AC formed a Ni-Fe alloy, which inhibited the sintering of the metal and improved the dispersibility of the metal particles. The synergy between Ni and Fe reduced the reduction temperature of NiO and increased the content of active centers Ni-0 on the catalyst surface. The 1Ni-1Fe/AC catalyst exhibited the highest catalytic performance, with an increase in the co-selectivity of propionic acid and ethyl propionate by 11% and a doubled space-time yield compared to the Ni/AC catalyst.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Ganesh Sunil More, Bhupendra Pratap Singh, Rajaram Bal, Rajendra Srivastava
Summary: This study demonstrates the use of sustainable transition metal-based catalysts to hydrogenate lignin-derived phenolics. A defect-induced oxygen vacancy containing H-NbO x prepared from commercial Nb(2)O(5) was employed as a catalyst. The formation of Ni/NiO interface over H-NbO x resulted in enhanced activity for the hydrogenation of phenolics. 10Ni/H-NbO x exhibited significantly higher conversion rate and selectivity compared to 10Ni/Nb2O5. The findings highlight the potential of sustainable transition metal catalysts for the production of valuable chemicals from lignin-derived phenolic compounds.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Penghui Yan, Eric Kennedy, Michael Stockenhuber
Summary: Ion-exchanged Ru/ZSM-5 and Ru/BEA catalysts show high intrinsic HDO activity with finely dispersed metal particles interacting strongly with oxygen atoms. High H2 adsorption activity facilitates hydrogenation reaction, while acid sites play a pivotal role in deoxygenation reaction.
JOURNAL OF CATALYSIS
(2021)
Article
Energy & Fuels
Xing Zhang, Jingfeng Wu, Lingjun Zhu, Shurong Wang
Summary: A novel strategy was proposed to produce diesel-like liquid fuel from lignin-derived bio-oil and plant/animal oil through hydrodeoxygenation-in situ esterification. The utilization of both aromatic units and -OCH3 groups of lignin was achieved. Model compounds, guaiacol and lauric acid, successfully produced cyclohexyl laurate and methyl laurate, satisfying the biodiesel standard. The yield of esters reached 112.5 mol % with nearly complete conversion of guaiacol. The presence of an additional -OCH3 group hindered the formation of cyclohexanol while increasing the yield of methanol. Lignin-derived dimers were also efficiently converted into diesel-like liquid fuel rich in esters and cycloalkanes.
Article
Chemistry, Physical
Yanlin Xu, Wenhong Wang, Bin Liu, Yuan Pan, Bin Dong, Yichuan Li, Yanpeng Li, Hailing Guo, Yongming Chai, Chenguang Liu
Summary: In this study, a novel and highly efficient bifunctional catalyst was reported for the hydrodeoxygenation of guaiacol. The doping of Nb2O5 significantly enhanced the activity of the CoMoS/gamma-Al2O3 catalyst. The modification of Nb2O5 weakened the metal-support interaction, improved the sulfidation degree of Mo species, and increased the dispersion of MoS2 phases, leading to the formation of more MoS2 edges and thus promoting the scission of C-(sp2)-O bonds in phenolics and enhancing the yield of hydrocarbons, especially benzene.
JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Applied
Dongdong Wang, Wanbing Gong, Jifang Zhang, Miaomiao Han, Chun Chen, Yunxia Zhang, Guozhong Wang, Haimin Zhang, Huijun Zhao
Summary: A facile method to prepare Ni-Co alloy nanoparticles as HDO catalyst on N-CNTs tip was reported for the first time, showing excellent performance in biomass transformation and selectivity improvement. The Ni-Co alloy catalyst exhibited outstanding HDO performance with 100% conversion efficiency and over 90% selectivity for various aromatic aldehyde derivatives in water.
CHINESE JOURNAL OF CATALYSIS
(2021)
Article
Energy & Fuels
Jing Chen, Zongyan Ma, Jiaheng Qin, Ming Chen, Linkun Dong, Weiwen Mao, Xueqi Zhou, Yu Long, Jiantai Ma
Summary: By synthesizing rod-like CoNi alloy catalysts, a selectivity of up to 94.9% for cyclohexanol can be achieved under mild reaction conditions. The synergistic effect of the CoNi alloy also enhances the hydrogen adsorption capability and catalytic activity.
Article
Engineering, Chemical
Nga Tran, Yoshimitsu Uemura, Thanh Trinh, Anita Ramli
Summary: In this study, the activity and stability of different metal catalysts in vapor-phase HDO process were investigated, revealing that bimetallic Pd-Co and Pd-Fe catalysts showed higher HDO yield and stability compared to monometallic catalysts, with Pd-Fe catalyst demonstrating higher stability and regeneration ability.
Article
Chemistry, Multidisciplinary
Xinchao Wang, Peixuan Wu, Zhuangqing Wang, Leilei Zhou, Yanchun Liu, Haiyang Cheng, Masahiko Arai, Chao Zhang, Fengyu Zhao
Summary: The Cl-modified Ru/TiO2 catalyst shows higher phenol selectivity in the conversion of guaiacol, but exhibits weaker aromatic ring hydrogenation ability, resulting in slower consumption of phenol.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Applied
C. Garcia-Mendoza, C. E. Santolalla-Vargas, Luis G. Woolfolk, P. del Angel, J. A. de los Reyes
Summary: The research found that high acidity is beneficial for demethylation, while medium acidity may promote the cleavage of the aromatic-OCH3 bond. The higher the titania content, the stronger the catalyst's ability to produce completely deoxygenated compounds.
Article
Thermodynamics
Chunjiang Liu, Chaoqun Zhou, Yu Wang, Xinghua Liu, Linyu Zhu, Hao Ma, Zhongyue Zhou, Fei Qi
Summary: This study presents a method for gas-phase hydrodeoxygenation of guaiacol into aromatic hydrocarbons using nitrogen-doped carbon-supported palladium as the catalyst under atmospheric pressure, with benzene yield up to 85.1%. The stability and selectivity of the Pd/NC catalyst are maintained during the 6-hour time-on-stream, demonstrating its potential for efficient deoxygenation of lignin model compounds while preserving their aromatic nature.
PROCEEDINGS OF THE COMBUSTION INSTITUTE
(2021)
Article
Chemistry, Physical
Ping He, Qisong Yi, Huawei Geng, Yuanchao Shao, Meng Liu, Zhijie Wu, Wenhao Luo, Yuanshuai Liu, Valentin Valtchev
Summary: This study developed highly dispersed subnanometric Ru metal clusters encapsulated in MWW zeolites for the HDO of lignin-derived phenolic compounds, showing high activity and stability in an apolar liquid phase. The close proximity between Ru metal clusters and Bronsted acid sites confined in zeolite constraints delivers a synergistic effect, leading to enhanced catalytic activity and product selectivity. The super stability of the ultrafine Ru metal clusters against sintering and leaching after successive catalytic runs is achieved, providing a prototype for the design of superior catalysts for other energy-related transformations.
Article
Chemistry, Multidisciplinary
Ana Belen Dongil, Elodie Blanco, Juan Jose Villora-Pico, Antonio Sepulveda-Escribano, Inmaculada Rodriguez-Ramos
Summary: The synthesis of methanol by carbon dioxide hydrogenation using copper-molybdenum carbides supported on various materials was studied. The effects of synthesis conditions and the support on the catalyst were investigated. The results showed that the catalyst prepared on high surface area graphite achieved the highest selectivity to methanol.
Article
Chemistry, Multidisciplinary
Enrique Garcia-Bordeje, Ana Belen Dongil, Jose M. Conesa, Antonio Guerrero-Ruiz, Inmaculada Rodriguez-Ramos
Summary: The effect of adding different alkali metal or alkaline earth metal on alumina-supported Ru and Ni catalysts in CO2 methanation was studied. Ba addition increased CH4 yield, while K and Na addition increased selectivity to CO but decreased conversion. In the Ru-based catalyst series, no enhancement in conversion or CH4 yield was achieved by any of the alkali metals.
Article
Engineering, Chemical
Qi Zhang, Matthew Bown, Laura Pastor-Perez, Melis S. Duyar, Tomas R. Reina
Summary: The reverse water gas shift reaction (RWGS) is attracting attention as a potential method for utilizing CO2 to produce synthesis gas. Molybdenum phosphide (MoP) has been identified as a nonprecious metal catalyst that completely suppresses the competing methanation reaction, making it suitable for CO2 utilization.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Chemistry, Physical
Elodie Blanco, Ana Belen Dongil, Isaac Tyrone Ghampson, Nestor Escalona
Summary: The choice of support material affects the carburization of rhenium, with different support materials leading to different carbidic species. Rhenium carbide obtained on ZrO2 exhibits the highest activity and selectivity towards benzene.
Article
Chemistry, Physical
Edgardo Leal Villarroel, Juan Seguel, Pedro Rodriguez, Elodie Blanco, Nestor Escalona, Gina Pecchi, Catherine Sepulveda
Summary: This study investigates the catalytic performance of Ru impregnated perovskites-based catalysts in the conversion of levulinic acid into higher valuable chemicals at different reaction temperatures. The Ru/BaZrO3 catalyst, with stronger basic sites, has a direct influence on the reaction.
Article
Chemistry, Multidisciplinary
Enrique Garcia-Bordeje, Ana Belen Dongil, Jorge Moral, Jose M. Conesa, Antonio Guerrero-Ruiz, Inmaculada Rodriguez-Ramos
Summary: Bifunctional materials based on Ru nanoparticles and alkaline metals have been studied for CO2 capture and subsequent methanation. Optimum performance was achieved at different temperature windows for each material, with the highest activity found in Ba-containing materials. These materials exhibited stable cyclic performance even in the presence of O2 and H2O.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Chemistry, Physical
S. Carrasco-Ruiz, Q. Zhang, J. Gandara-Loe, L. Pastor-Perez, J. A. Odriozola, T. R. Reina, L. F. Bobadilla
Summary: Dry reforming of methane is a promising catalytic route for converting biogas into syngas. The study has developed a highly stable bimetallic catalyst that prevents coke formation and deactivation, offering a promising solution for biogas upgrading.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Claudia Retamoso, Nestor Escalona, Marcelo Gonzalez, Lorena Barrientos
Summary: The response of the photocatalyst is affected by experimental conditions, which can improve the effectiveness of contaminant removal. A parameter analysis of α-Fe2O3-rutile and water contaminated with methylene blue (MB) was conducted to identify the initial factors that impact reaction conditions. The highest discoloration rate was achieved with an α-Fe2O3-rutile load of 1.0 g L-1, an initial MB concentration of 8.0×10-6 mol L-1, and a pH of 8.8, after 540 min of irradiation, resulting in 34% and 91% removal effectiveness.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Cesar Pazo-Carballo, Elodie Blanco, Esteban Camu, Angel Leiva, Yoan Hidalgo-Rosa, Ximena Zarate, Ana Belen Dongil, Eduardo Schott, Nestor Escalona
Summary: Mono- and bimetallic UiO-66 nanocatalysts were synthesized and characterized in the aldol condensation reaction. The bimetallic UiO-66 nanocatalyst exhibited higher activity due to the synergetic effect between Zr and Hf, while the bimetallic catalyst with Zr and Ce showed antagonistic effect and lower activity. Incorporating Hf and Ce on Zr-UiO-66 favored benzalacetone formation.
ACS APPLIED NANO MATERIALS
(2023)
Article
Multidisciplinary Sciences
Jesus Gandara Loe, Alejandro Pinzon Pena, Juan Luis Martin Espejo, Luis F. Bobadilla, Tomas Ramirez Reina, Laura Pastor-Perez
Summary: Fe-derived catalysts were synthesized through the pyrolysis of MIL-100 (Fe) metal-organic framework (MOF) and were evaluated in the reverse water-gas shift (RWGS) reaction. The addition of Rh as a dopant was also considered. The catalysts showed a mixture of α-Fe, Fe3C, and Fe3O4 as the main active phase, and the incorporation of Rh led to a decrease in particle size and improved performance at low temperatures.
Article
Chemistry, Applied
Elodie Blanco, Paula Cabeza, Veronica Naharro Ovejero, Claudio Contreras, Ana Belen Dongil, I. Tyrone Ghampson, Nestor Escalona
Summary: The effect of different carbon supports on the formation of rhenium carbide was evaluated in the hydrodeoxygenation of guaiacol. The choice of support affected the carburization of rhenium, potentially due to the nature of oxygen function groups on the supports. The study identified the active sites responsible for converting guaiacol through quantification of CH4 mass signals during TPR measurements.
Article
Green & Sustainable Science & Technology
Wei Jin, Jesus Gandara-Loe, Laura Pastor-Perez, Juan J. Villora-Pico, Antonio Sepulveda-Escribano, Roberto Rinaldi, Tomas Ramirez Reina
Summary: This study proposes an integrated approach combining aqueous phase reforming (APR) and hydrodeoxygenation (HDO) for the hydrotreatment of guaiacol, a model compound representing lignin-derived phenols in pyrolysis bio-oils. The study explores the effect of metal species, Pt-promoting effect on Ni-Pt catalyst supported on activated carbon (AC), and the choice of hydrogen source (methanol or glycerol) on the conversion of guaiacol. The findings highlight the significant improvement in guaiacol conversion with bimetallic Ni-Pt/AC catalysts using methanol as the hydrogen source, and the importance of hydrogen source selection for catalyst performance and stability.
Article
Chemistry, Multidisciplinary
Mabel Rojas, Gabriel Bernales, Ana Belen Dongil, Gina Pecchi, Nestor Escalona
Summary: This study investigated the effect of partial substitution of La by Ca and Sr on the catalytic activity of lanthanum cobaltite (LaCoO3). It was found that Sr substitution leads to the oxidation of Co3+ to Co4+ to neutralize electronic instability, while the presence of Ca generates oxygen vacancies. Reduced LaCoO3 exhibited a higher conversion rate compared to the substituted catalysts, which may be attributed to the smaller Co crystal size and absence of segregated phases.
NEW JOURNAL OF CHEMISTRY
(2022)
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.
