Article
Energy & Fuels
Yang Liu, Junjie Liao, Liping Chang, Weiren Bao
Summary: This paper investigates the adsorption performance of silver-modified mesoporous materials in removing thiophenic compounds. The results show that the adsorption of thiophene by the sorbents involves S-Ag and pi complexation reactions, and the adsorption efficiency is greatly affected by benzene. XPS analysis reveals that silver interacts strongly with the carrier and forms Ag-O-Si bonds as the active centers for thiophenic compounds. The Mulliken charges of sulfur atoms have an impact on the interactions between silver and thiophene sulfur compounds.
Article
Engineering, Chemical
Dayanne E. F. Oliveira, Jose A. . O. Chagas, Ana Lucia De Lima, Claudio J. A. . Mota
Summary: Chitosan was impregnated on MCM-41 and SBA-15 mesoporous silica supports and tested for CO2 adsorption. The SBA-15 adsorbent impregnated with 50 wt % of chitosan showed the best results, with CO2 uptake of 0.78 mmol g-1.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Materials Science, Ceramics
Marilia R. Oliveira, Juan A. Cecilia, Juliana F. De Conto, Silvia M. Egues, Enrique Rodriguez-Castellon
Summary: It is well-known that there is a constant global search for sustainable technologies that can effectively reduce carbon dioxide (CO2) emissions in order to combat climate change. This study focused on the synthesis of silica-based adsorbents, MCM-41 and SBA-15, using a microwave reactor. The results showed that microwave irradiation greatly improved the properties and adsorption capacity of the silica materials, making them promising candidates for CO2 capture processes.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Florent Dubray, Vladimir Paunovic, Marco Ranocchiari, Jeroen A. van Bokhoven
Summary: This study investigates the oligomerization of pentene and hexene mixtures using an acidic mesoporous Al-SBA-15 catalyst. The results show that the catalyst exhibits high selectivity to jet-fuel range products (>98%) at low-to-moderate conversions (<50%). Higher conversions result in lower selectivities. It is also found that adjusting the conversion is the primary way to control the selectivity of the catalyst.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Zongwei Zhang, Keheng Wei, Chao Li, Zhenhong Deng, Feixue Chu
Summary: The study reports a simple process of catalytic adsorptive desulfurization of model jet fuel using TiO2 loaded on different mesoporous materials. TiO2/MCM-41 exhibited higher adsorption capacity and strength, better selectivity, and rapid kinetics, making it a cost-effective and efficient desulfurization adsorbent for producing clean jet fuel.
Article
Chemistry, Physical
Arzu Kanca, Zeynep Alpsoy, Osman Nuri Ata
Summary: Coal is widely used as a fossil fuel resource, and clean coal technologies can improve the efficiency of clean energy production. This study aims to develop efficient sorbents to remove H2S from hot flue gas. Ca-based binary mixed metal oxides were synthesized as sulfur sorbents, and their crystal structure and surface properties were analyzed. The desulfurization performance of the sorbents was examined using a simulated gas mixture, and the sorbent with the best performance was identified.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Gustavo Medeiros de Paula, Luana do Nascimento Rocha de Paula, Meiry Glaucia Freire Rodrigues
Summary: This study presents methodologies for the synthesis of MCM-41 and SBA-15 using glass powder, rice husk ash and sugarcane bagasse ash. The results showed that treating the raw materials effectively increased their reactivity and eliminated the negative effects of impurities. The synthesized materials exhibited high orderliness and were free of contaminants.
Article
Engineering, Chemical
Qinglong Luo, Lei Liu, Ruiqiang Dong, Zhongfu Cheng, Mingzhe Dong, Zhijian Wu, Jun Li, Xueli Huang
Summary: In this study, organo-inorganic hybrid mesoporous boron adsorbents were successfully synthesized and characterized. The results showed that these adsorbents have highly selective adsorption properties for boron and maintain good lifespan after multiple adsorption-desorption cycles.
DESALINATION AND WATER TREATMENT
(2022)
Article
Energy & Fuels
Thanatchai Meemanah, Atikhun Chotirattanachote, Junaid Ahmad, Umer Rashid, Chawalit Ngamcharussrivichai
Summary: Herein, furfural, a lignocellulose-derived platform chemical, was converted into a bio-jet fuel precursor via aldol condensation with 2-butanone using strontium and titanium mixed oxides loaded onto mesoporous silica SBA-15. The acid-base properties of the catalysts and the reaction conditions strongly influenced the yield and selectivity of α,β-unsaturated C9 ketone with a branched molecular structure. The optimized catalyst, 20STO(2:1)/SBA15, achieved > 99% furfural conversion and 78.3% C9B yield under specific conditions.
Article
Engineering, Chemical
Mustafa H. Al-Furaiji, Khairi R. Kalash, Mohammed A. Kadhom, Qusay F. Alsalhy
Summary: In this study, mixed matrix polyethersulfone membranes were prepared with MCM-41 and SBA-15 particles to improve turbidity rejection and water flux. Results showed that adding 1wt.% of silica additives led to an increase in water flux in the short term, with membranes achieving almost complete turbidity rejection under all examination conditions. Additionally, backwash was effective in restoring the membranes' original efficiency.
DESALINATION AND WATER TREATMENT
(2021)
Article
Chemistry, Physical
Thianne Silva Batista Barbosa, Thiago Rodrigo Barbosa Barros, Tellys Lins Almeida Barbosa, Meiry Glaucia Freire Rodrigues
Summary: The synthesis of MCM-41 and SBA-15 silicas with respect to green chemistry was investigated through a low-cost approach utilizing waste mother liquors. The addition of mother liquor during consecutive syntheses influenced the physical and chemical properties of the silicas. Results showed that the mother liquor used had an impact on the final characteristics of the materials.
Article
Chemistry, Multidisciplinary
Javier Asensio, Maria Isabel Beltran, Nerea Juarez-Serrano, Deseada Berenguer, Antonio Marcilla
Summary: The use of tobacco biomass as an energy source is becoming increasingly important. This study investigates the decomposition of NNN and the effects of SBA-15 and MCM-41 under different conditions. The results show that SBA-15 has the best catalytic reduction effect under pyrolysis conditions.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Multidisciplinary
Argam Akopyan, Polina D. Polikarpova, Nina Arzyaeva, Alexander Anisimov, Olga Maslova, Olga Senko, Elena N. Efremenko
Summary: This study investigated the effect of the hydrophobicity of mesoporous silicate SBA-15 on the catalytic activity and service life in the peroxide oxidation of sulfur-containing compounds. The immobilization of molybdate anion on SBA-15 support resulted in lower reaction temperature and longer catalyst lifespan. The hydrophobic catalyst showed insensitivity to initial sulfur content and hydrogen peroxide amount, retaining activity for at least six oxidation cycles.
Article
Chemistry, Multidisciplinary
Lifang Chen, Jin An Wang, Natali de la Fuente, Sinong Zhou, Peng Jiang, Yueqin Song, Xiaolong Zhou
Summary: This study focuses on the roles of structural defects, surface acidity, and catalytic properties of phosphotungstic acid grafted on Zr-doped MCM-41 catalysts in oxidative desulfurization, demonstrating the importance of these factors in improving catalytic activity for ultralow-sulfur fuel production.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Physical
Fahime Abedini, Somaiyeh Allahyari, Nader Rahemi
Summary: Different amounts of BiOBr and g-C3N4 were loaded on MCM-41 to achieve efficient photo oxidation and adsorption of DBT. The optimal photocatalyst, BiOBr-C3N4/MCM-41 with 10% BiOBr, showed highest activity and lowest DBT concentration, attributed to the highest structural defects and strongest interaction. However, after four cycles, a decrease in activity was observed due to pores blockage by DBT sulfones.
APPLIED SURFACE SCIENCE
(2021)
Editorial Material
Engineering, Chemical
M. Sam Mannan, Sonny Sachdeva, Hao Chen, Olga Reyes-Valdes, Yi Liu, Delphine M. Laboureur
Article
Engineering, Chemical
Jiaqi Zhang, Hao Chen, Yi Liu, Hallie Elledge, Chad V. Mashuga, M. Sam Mannan
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2015)
Article
Engineering, Chemical
Hao Chen, William C. Pittman, Logan C. Hatanaka, Brian Z. Harding, Adam Boussouf, David A. Moore, James A. Milke, M. Sam Mannan
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2015)
Article
Engineering, Chemical
Yan-Ru Lin, Hao Chen, Chad Mashuga, M. Sam Mannan
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2015)
Article
Engineering, Chemical
Brian Harding, Bin Zhang, Yi Liu, Hao Chen, M. Sam Mannan
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2016)
Article
Engineering, Chemical
Brian Z. Harding, Bin Zhang, Hao Chen, M. Sam Mannan
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2016)
Article
Thermodynamics
Jiaqi Zhang, Yi Liu, Hallie Elledge, Hao Chen, M. Sam Mannan, Chad V. Mashuga
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2017)
Article
Chemistry, Physical
Lifeng Wang, Hao Chen, Min-Hao Yuan, Sandrine Riyillon, Eric H. Klingenberg, Jimmy Xianming Li, Ralph T. Yang
APPLIED CATALYSIS B-ENVIRONMENTAL
(2014)
Article
Chemistry, Physical
Lifeng Wang, Nicholas R. Stuckert, Hao Chen, Ralph T. Yang
JOURNAL OF PHYSICAL CHEMISTRY C
(2011)
Article
Chemistry, Physical
Hao Chen, Lifeng Wang, Jun Yang, Ralph T. Yang
JOURNAL OF PHYSICAL CHEMISTRY C
(2013)
Article
Chemistry, Multidisciplinary
Hao Chen, Ralph T. Yang
Article
Engineering, Chemical
Qing Han, Mengqing Shi, Linkai Han, Di Liu, Mingwei Tong, Yuxin Xie, Zhonghua Xiang
Summary: Developing highly efficient bifunctional oxygen electrocatalysts is crucial for zinc-air flow batteries. Metal-organic frameworks (MOFs) and covalent organic polymers (COPs) have emerged as promising alternatives due to their designable and controllable atomic-level structures. However, their catalytic performances are limited by conductivity and catalytic activity. In this study, nanosheet FeNi-MOF and iron phthalocyanine rich COP hybrid materials are assembled through the pi-pi stacking effect to create highly efficient bifunctional electrocatalysts. The resulting catalyst exhibits superior catalytic performance and stability, making it a promising candidate for zinc-air flow batteries.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Daria Grigorash, Dmytro Mihrin, Rene Wugt Larsen, Erling H. Stenby, Wei Yan
Summary: The article introduces a new approach to describe the cross-association between molecules, allowing for the simulation of weakly bound molecular complexes with different conformations in mixtures. By incorporating this approach into the equation of state, accurate predictions of vapor-liquid equilibrium and liquid-liquid equilibrium can be made. The new method is validated through experiments on alcohol and acid mixtures, with the results compared to experimental data, demonstrating its accuracy and reliability.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Mohammed Al-Sharabi, Daniel Markl, Vincenzino Vivacqua, Prince Bawuah, Natalie Maclean, Andrew P. E. York, Axel Zeitler
Summary: This study used terahertz pulsed imaging to investigate the transport process of different solvents into ceramic catalytic materials. The results showed that the heating rate of the samples influenced the water transport rate, while the viscosity of 1-octanol slowed down its transport.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Chukwunonso Anyaoku, Sati Bhattacharya, Rajarathinam Parthasarathy
Summary: This study aimed to enhance understanding of settling dynamics in viscoelastic fluids by developing a semi-empirical correlation and a dimensionless ratio, which accurately described the characteristics of settling suspensions.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Antti I. Koponen, Janika Viitala, Atsushi Tanaka, Baranivignesh Prakash, Olli-Ville Laukkanen, Ari Jasberg
Summary: This study focuses on the development of foam application chemicals for the paper and board industry. The research explores the rheology of the polyvinyl alcohol foam used in the process. Measurements were conducted to determine the foam viscosity and slip flow. The results suggest that slip flow contributes significantly to the total flow rate, and the obtained viscosity and slip models provide a solid foundation for industrial processes.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Dalei Sun, Jinghui Cai, Yating Yang, Zhiwu Liang
Summary: In this study, Fe-doped alpha-Bi2O3 catalysts with different Fe/Bi molar ratios were synthesized and utilized in the carbonylation of isobutyl amine with CO2. The results showed that Fe doping significantly enhanced the catalytic abilities of alpha-Bi2O3.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Yuan Tian, Xinxin Wang, Yanrong Liu, Wenping Hu
Summary: This paper predicts the solubility of nitrogen gas in ionic liquids (ILs) using two quantitative structure-property relationship (QSPR) models. By combining machine learning methods and ionic fragments contribution method, the accuracy and reliability of the prediction models are improved.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Liwang Wang, Wei Liu, Pan Yang, Yulong Chang, Xiaoxu Duan, Lingyu Xiao, Yaoming Hu, Jiwei Wu, Liang Ma, Hualin Wang
Summary: This study investigates the effective phase interfacial area (ae) of hydro-jet cyclones at different injection angles. The results show that a 45 degrees upward incidence angle yields the most favorable flow field characteristics for efficient mass transfer. The significant enhancement in ae of the hydro-jet cyclones offers the advantage of reducing equipment volume and cost savings.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Chuanjun Wu, Jiangzhi Chen, Jiyue Sun, I-Ming Chou, Shenghua Mei, Juezhi Lin, Lei Jiang
Summary: In this study, the solubility of H2S hydrate in water was measured using Raman spectroscopy. The results showed that the solubility increases with temperature under certain equilibrium conditions, and the solubility also depends on pressure and temperature under different equilibrium conditions. A thermodynamic model based on the van der Waals-Platteeuw theory was developed to predict the solubility, demonstrating its accuracy.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Lorenzo Brivio, Serena Meini, Mattia Sponchioni, Davide Moscatelli
Summary: This study investigates the influence of three main parameters and proposes a kinetic model to predict the optimal operating conditions for high yield of dimethyl terephthalate (DMT) in the chemical recycling process of polyethylene terephthalate (PET).
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Hongju Lin, Fanhui Liao, Yanchang Chu, Mingyu Xie, Lun Pan, Yuanyuan Wang, Lijian Leng, Donghai Xu, Le Yang, Gangfeng Ouyang
Summary: A honeycomb NiCo/C-Na catalyst with a micro-meso-macroporous structure has been fabricated and shown to have significantly higher catalytic activity for the decarboxylation of fatty acids. It also proves to be efficient in upgrading sludge HTL bio-crude, resulting in a biofuel with decreased viscosity and increased density.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Xiaoxian Li, Rui Li, Min Lin, Mingde Yang, Yulong Wu
Summary: A series of coated non-noble metal porous carbon catalysts were synthesized and applied to the aqueous-phase deoxygenation of algal bio-oil. One of the catalysts showed excellent deoxygenation selectivity and catalytic activity at 250 degrees C. The catalyst exhibited good hydrothermal stability and the reaction mechanism was proposed based on product analysis and active site analysis.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
M. V. Chudakova, M. V. Popov, P. A. Korovchenko, E. O. Pentsak, A. R. Latypova, P. B. Kurmashov, A. A. Pimenov, E. A. Tsilimbaeva, I. S. Levin, A. G. Bannov, A. V. Kleymenov
Summary: A series of catalysts with different potassium contents were prepared using solution combustion synthesis and characterized using various techniques. The results showed that the potassium content affected the phase composition and texture of the catalysts. The addition of a small amount of potassium resulted in a change in particle size distribution, leading to higher hydrogen yield. The Ni-1%K2O/Al2O3 catalyst exhibited the highest hydrogen yield at temperatures of 675 and 750 degrees Celsius.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Aliakbar Roosta, Nima Rezaei
Summary: In this study, we modified the electrolyte cubic plus association equation of state (e-CPA EoS) and integrated it with two electrical conductivity models to estimate the electrical conductivity of 11 monovalent electrolyte solutions in water. The modified e-CPA model demonstrated better performance and the hybridization with electrical conductivity models resulted in two predictive models for estimating the electrical conduction of dilute and concentrated electrolyte solutions. These predictive models showed relative average percentage deviations (AARD) of 11.15% and 13.87% over wide ranges of temperature and electrolyte concentration.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Haoren Niu, Jianzheng Wang, Qingzhu Jia, Qiang Wang, Jin Zhao, Fangyou Yan
Summary: A study developed two quantitative structure-property relationship models for the complexation performance of alpha- and beta-cyclodextrins and validated their stability and predictive ability through internal and external validation. The models showed robustness and satisfactory performance, as demonstrated by the experimental results and model validations. These models can effectively predict the binding constants between cyclodextrins and various types of molecules, providing valuable tools for cyclodextrin design.
CHEMICAL ENGINEERING SCIENCE
(2024)
