Article
Agricultural Engineering
Wenyu Li, Yongzhen Peng, Ruitao Gao, Qiong Zhang, Xiyao Li, Chengkun Kao, Jianwei Li
Summary: This study investigates the impact of low salinity levels on a double-anammox system in treating municipal wastewater, finding that a salinity of 1.0% led to a nitrogen removal efficiency of 81.2%, with a significant contribution of 76.5% from anammox. Low salinity was also found to promote nitritation and denitratation, enhancing the overall nitrogen removal efficiency. The enrichment of specific microbial populations, such as Ca. Brocadia and Nitrosomonas, further supported the effectiveness of the double-anammox process in treating saline wastewater.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Liyan Deng, Yongzhen Peng, Jianwei Li, Ruitao Gao, Wenyu Li, Rui Du
Summary: Advanced nitrogen and phosphorus removal was achieved in a single-stage suspending-sludge system using a novel Anaerobic/Oxic/Anoxic (AOA) strategy for over 200 days. The system showed stable nitritation with high activity of ammonia oxidation bacteria and improved anammox performance without initial inoculation. The study provided new insights into advanced nutrient removal with comprehensible regulation and reduced aeration requirement.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Environmental
Lingfeng Wang, Shuang Qiu, Jianhua Guo, Shijian Ge
Summary: Nitritation can be rapidly initiated using light irradiation, promoting the activity and growth of ammonia-oxidizing bacteria while suppressing nitrite-oxidizing bacteria. Optimal light energy densities can lead to high nitrite accumulation ratios, converting ammonia to nitrate. Additionally, light irradiation induces different responses of AOB and NOB, optimizing microbial structure while ensuring AOB predominance and stable nitritation.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Environmental
Shenbin Cao, Wangwang Yan, Lei Yu, Liang Zhang, Winson Lay, Yan Zhou
Summary: This study developed a cost-effective partial nitritation-anammox process to address the challenges in treating THP-AD centrate, achieving a nitrogen removal rate of 0.55 kg N/m3/d with mitigation strategies. However, issues such as sludge washout, AOB inhibition, and declining anammox activity were observed at higher THP-AD centrate concentrations. The study provides insights for developing an energy-saving treatment process for THP-AD centrate.
Article
Environmental Sciences
Yu-Pin Lin, Andrianto Ansari, Rainer Ferdinand Wunderlich, Huu-Sheng Lur, Thanh Ngoc-Dan Cao, Hussnain Mukhtar
Summary: Understanding the niche segregation of AOA and AOB in ammonia oxidation and N2O production under different pH and temperature conditions is crucial for predicting N2O dynamics. Results showed that AOA and AOB occupied different niches for PAO, with soil temperature being a major determinant. N2O fluxes were higher in acidic conditions and lower in alkaline conditions, with a significant positive correlation between PAO and N2O fluxes.
Article
Environmental Sciences
Mengyue Zhao, Xiufeng Tang, Dongyao Sun, Lijun Hou, Min Liu, Qiang Zhao, Uli Klumper, Zhexue Quan, Ji-Dong Gu, Ping Han
Summary: The recent discovery of complete ammonia oxidizers (comammox) challenges the traditional understanding of nitrification, showing that one organism can convert ammonia to nitrate. This study on nitrifying microorganisms in the Nanliu estuary demonstrates the niche specificity of different nitrifiers modulated mainly by salinity. The research also reveals a clear response by comammox Nitrospira to a wide range of simulated salinity levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Jiajie Hu, Yuxiang Zhao, Xiangwu Yao, Jiaqi Wang, Ping Zheng, Chuanwu Xi, Baolan Hu
Summary: The study revealed the significant role of comammox Nitrospira in soil nitrification, especially in acid soils, showing a positive correlation between their abundance and nitrification potential, dominating in most soil samples.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Soil Science
Yue Li, Huanhuan Wei, Mingqi Liu, Jinfeng Yang, Xiaori Han
Summary: The continuous low-dose application of biochar can indirectly increase crop yield by regulating the microbial mechanism in the nitrification process. Biochar-based fertilizer can reduce the nitrification rate compared to chemical fertilizer application.
APPLIED SOIL ECOLOGY
(2023)
Article
Environmental Sciences
Shuangyu Tang, Chen Wang, Guodong Ji
Summary: Antibiotics affect the composition and metabolism of ammonia-oxidizing archaea and bacteria microbial communities in the environment, changing the process of ammonia oxidation in different environments. Ammonia-oxidizing archaea are more susceptible to the inhibitory effects of antibiotics than ammonia-oxidizing bacteria, and ecological network analysis shows changes in different relationships.
LAND DEGRADATION & DEVELOPMENT
(2021)
Review
Engineering, Environmental
Peng Wu, Junjiang Chen, Vijay Kumar Garlapati, Xingxing Zhang, Francis Wani Victor Jenario, Xiang Li, Wenru Liu, Chongjun Chen, Tejraj M. Aminabhavi, Xiaonong Zhang
Summary: This study presents a comprehensive review of the anammox process, the advancements in nitritation and denitratation processes, and proposes a novel wastewater treatment method for efficient nitrogen removal.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Environmental Sciences
Songkai Qiu, Zebing Li, Yuansheng Hu, Lin Shi, Rui Liu, Lei Shi, Lujun Chen, Xinmin Zhan
Summary: The partial nitritation-anammox (PN-A) process offers a game-changing alternative for nitrogen removal in municipal wastewater treatment, with potential challenges including process instability, low nitrogen removal efficiency, and poor effluent quality at low temperatures, highlighting the importance of efficient anammox biomass retention for successful implementation.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2021)
Article
Environmental Sciences
Yuxiang Zhao, Jiajie Hu, Weiling Yang, Jiaqi Wang, Zhongjun Jia, Ping Zheng, Baolan Hu
Summary: The discovery of complete ammonia oxidizer (comammox) was a breakthrough in nitrification research. Comammox bacteria can metabolize urea and have higher nitrite tolerance, indicating potential niche differentiation when using different nitrogen sources. Using nitrite can increase the relative abundance of comammox, while using urea can increase the quantity of comammox.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Chris Chisholm, Hong J. Di, Keith Cameron, Andriy Podolyan, Anish Shah, Lisa Hsu, Jupei Shen
Summary: This study investigated the abundance and community composition of comammox Nitrospira across different regions of pasture-based dairy farms and different land uses within the same region. The results showed that comammox Nitrospira were most abundant under west coast dairy farm conditions and irrigated dairy farms. The abundance of comammox Nitrospira was also influenced by soil moisture and annual rainfall.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Yujie Dai, Xiaolan Lin, Yi Luo, Jing Sun, Yun Tian
Summary: This study investigated the responses and relative contributions of ammonia-oxidizing archaea (AOA), ammonia-oxidizing bacteria (AOB), anaerobic ammonium oxidizing (anammox) bacteria, and denitrifying bacteria in mangrove sediments after spiking urea. The results indicated that nitrification (primarily mediated by AOA)-denitrification process played the most important role in nitrogen removal from the amendment of nitrogen short-term input in the mangrove sediments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Biotechnology & Applied Microbiology
Shanshan Meng, Tao Peng, Hui Wang, Tongwang Huang, Ji-Dong Gu, Zhong Hu
Summary: This study investigated the distribution and abundance of ammonia-oxidizing archaea and ammonia-oxidizing bacteria, complete ammonia oxidizers, and nitrite-oxidizing bacteria in mangrove ecosystems. The results showed that different primers had varying efficiency in detecting and characterizing specific bacterial groups in mangrove sediments. Additionally, diverse and abundant novel nitrifying bacteria were found in the mangrove sediments.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Physical
Zhijie Chen, Wei Wei, Hong Chen, Bing-Jie Ni
Summary: Realizing sustainable hydrogen fuel production through water electrolysis is crucial to achieving carbon neutrality. However, developing cost-effective electrocatalysts remains a challenge. Recently, eco-designed electrocatalysts derived from wastes and naturally abundant materials have gained attention. This article summarizes the recent advances in eco-designed electrocatalysts for water splitting and discusses the eco-design strategies and their correlation with catalyst properties and performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Environmental
Mei-Mei Wang, Li-Juan Liu, Jia-Rui Xi, Ying Ding, Peng-Xi Liu, Liang Mao, Bing-Jie Ni, Wei-Kang Wang, Juan Xu
Summary: In this study, novel oxygen vacancies-enriched hollow ZnCo2O4 nanocages were synthesized for efficient peroxydisulfate activation. The incorporation of Zn into the lattice of Co3O4 increased the number of oxygen vacancies while preserving the morphology of the catalysts. The developed activation system showed resistance to environmental concentrations of Cl-, NO(3)(-), and humic acid, and demonstrated potential in the treatment of packaging wastewater with low ionic potential organic pollutants.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Environmental Sciences
Xinyan Chen, Xueming Chen, Raymond Jianxiong Zeng, Wen-Bo Nie, Linyan Yang, Wei Wei, Bing-Jie Ni
Summary: Recently, the nitrate/nitrite-dependent anaerobic methane oxidation (n-DAMO) processes have gained significant attention in wastewater treatment. These processes not only reduce carbon emissions and enhance biological nitrogen removal but also face practical challenges due to the distinctive properties of nDAMO microorganisms and the limited availability of methane. This paper discusses the commonly-applied types of bioreactors for nDAMO-based biotechnologies and proposes key perspectives to inspire future investigation and practical applications of the n-DAMO processes.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Agricultural Engineering
Lai Peng, Huiling Qiu, Shengjun Li, Yifeng Xu, Chuanzhou Liang, Ning Wang, Yiwen Liu, Bing-Jie Ni
Summary: The potential of using endogenous free ammonia (FA) and free nitrous acid (FNA) as nitrous oxide (N2O) mitigators in wastewater treatment was investigated. It was found that 1.5 mg HNO2-N/L FNA could virtually abolish N2O emission from the partial-nitritation (PN) sludge, while 45 mg NH3-N/L FA and 0.015 mg HNO2-N/L FNA successfully mitigated N2O production from the full-nitrification (FN) sludge. FA treatment was more economically appealing.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Hourui Zhang, Lu Zhang, Shuangshi Dong, Xiaoguang Duan, Dongyang Zhu, Bing-Jie Ni, Cong Lyu
Summary: Environmental contaminations have raised concerns about human health globally. It is urgent to develop metal-free photocatalysts, such as covalent organic frameworks (COFs), to address these issues. This work introduces electron-donating/withdrawing substituents on COFs-H to fine-tune the bandgap and photocatalytic performance. The study reveals that these substituents narrow the bandgap of COFs and enhance electron-hole separation efficiency, leading to improved photocatalytic remediation of organic contaminants and heavy metal ions.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Zhihao Liu, Gang Sun, Zhijie Chen, Yue Ma, Kui Qiu, Min Li, Bing-Jie Ni
Summary: This study synthesized functional polyacrylonitrile fibers with Cu-N coordination structure (PANFEDA-Cu) and demonstrated their remarkable adsorption capacity for H2S at ambient temperature, even in the presence of water vapor. The selective removal of H2S is attributed to the active Cu-N sites on the fiber surface and the strong interaction between Cu atoms and S. This work provides insights for the design of efficient and low-cost materials for gas separation.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Xiaonan Feng, Zhijie Chen, Shuai Wang, Ling Cen, Bing-Jie Ni, Qingyou Liu
Summary: Pyrite, the most common metal sulfide mineral, weathers easily and releases acidifying substances, resulting in heavy metal contamination in surrounding meadow and saline soils. This study investigates the weathering behaviors of pyrite in simulated saline and meadow soil solutions, and finds that saline soil and higher temperatures enhance pyrite weathering rates. Surface reactions and diffusion control the weathering kinetics, with different activation energies observed in the two soil solutions. The transformation of pyrite leads to the formation of iron (hydr)oxides, which contribute to the alkalinity and reduced bioavailability of heavy metals in alkaline soils.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jiayi Chen, Derek Hao, Wei Chen, Yazi Liu, Zongyou Yin, Hsien-Yi Hsu, Bing-Jie Ni, Aixiang Wang, Simon W. Lewis, Guohua Jia
Summary: This article presents emerging engineering strategies for designing colloidal metal-semiconductor nanorod hybrid nanostructures for efficient photocatalytic applications, focusing on the type, size, dimension, and location of metal nanoparticles and semiconductors, co-catalyst, band gap structure, surface ligand, and hole scavenger.
CHINESE JOURNAL OF CHEMISTRY
(2023)
Review
Environmental Sciences
Maoshui Zhuo, Zhijie Chen, Xiaoqing Liu, Wei Wei, Yansong Shen, Bing-Jie Ni
Summary: This paper discusses the application of three catalytic processes (photocatalysis, electrocatalysis, and biocatalysis) in the management of microplastic pollution, and introduces the efficiency and catalytic mechanisms of different catalysts. It also proposes the development prospects for sustainable management of microplastic pollution.
ENVIRONMENTAL POLLUTION
(2024)
Article
Environmental Sciences
Yi-Lu Sun, Han-Lin Wang, Huu Hao Ngo, Wenshan Guo, Bing-Jie Ni, Xue-Ning Zhang, Wei Wei
Summary: In this study, a comprehensive methodology was developed to design and operate S0AD bioreactors, effectively managing fluctuations in nitrogen removal efficiency caused by seasonal temperature variations. By establishing a mathematical model and considering influence factors, a pilot-scale bioreactor was designed to maintain a stable effluent nitrate concentration throughout the year, resulting in a substantial reduction in excessive nitrate removal, sulfur consumption, and sulfate production.
ENVIRONMENTAL RESEARCH
(2024)
Article
Engineering, Environmental
Tianyi Luo, Xiaohu Dai, Wei Wei, Qiuxiang Xu, Bing-Jie Ni
Summary: This study investigated the effects of different dosages, polymer types, and branching extents of microplastics on antibiotic resistance genes (ARGs) and antibiotic-resistant bacteria (ARB) in anaerobic sludge digestion. The results showed that microplastics led to an increase in the relative abundance of ARGs in the sludge, and the dosage and polymer type played a role in this effect. Mechanism studies revealed that a specific polymer (LDPE) selectively enriched potential ARB and ARGs in the surface biofilm, promoting vertical and horizontal gene transfer. Therefore, microplastics can concurrently promote the vertical and horizontal transfer of ARGs in anaerobic sludge digestion.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Qi-Su Huang, Chengcheng Chu, Qiuju Li, Qiong Liu, Xinru Liu, Jing Sun, Bing-Jie Ni, Shun Mao
Summary: The limited mass transfer of CO2 in water hinders the efficiency of CO2 reduction reaction (CO2RR) due to intense competition with the hydrogen evolution reaction (HER). To overcome this challenge, researchers decorated the photocatalyst surface with a hydrophobic carbonaceous cocatalyst to construct a three-phase interface. The decorated photocatalyst exhibited significantly improved CO2-to-CH4 activity and elevated CO2RR selectivity. Molecular dynamics simulations revealed that the hydrophobic microenvironment prevented hydrogen bond formation on the carbonaceous cocatalyst surface. Overall, this study provides a general method to alleviate the CO2 mass transfer limit for accelerated CO2RR in water.
Article
Nanoscience & Nanotechnology
Zhijie Chen, Renji Zheng, Teng Bao, Tianyi Ma, Wei Wei, Yansong Shen, Bing-Jie Ni
Summary: Electro-upcycling of plastic waste into value-added chemicals/fuels is a sustainable approach. A high-performance nickel sulfide catalyst is designed using a cobalt and chloride co-doping strategy, demonstrating efficient and selective conversion of plastic waste into formate and hydrogen. This study provides a cost-effective and environmentally friendly method for plastic waste management and energy-saving hydrogen production.
NANO-MICRO LETTERS
(2023)
Article
Engineering, Multidisciplinary
Shuting Zeng, Jing Sun, Xuyang Lue, Zitong Peng, Bin Dong, Xiaohu Dai, Bing-Jie Ni
Summary: This study investigated the impact of norfloxacin on sewage sludge anaerobic digestion and evaluated potential environmental risks. The results showed that norfloxacin at environmental relevant concentration ranges would not significantly affect methane production during the sludge anaerobic digestion. However, the individual methanogenesis process was enhanced with the increase of Methanosaeta abundances, and the norfloxacin concentration is found to be increased during the anaerobic digestion process.
RESULTS IN ENGINEERING
(2023)
Article
Environmental Sciences
Yufen Wang, Zixin Zhang, Xiaomin Wang, Haixiao Guo, Tingting Zhu, Bing-Jie Ni, Yiwen Liu
Summary: This study proposes a novel and green strategy, percarbonate-strengthened ferrate pretreatment, to enhance the synthesis of short-chain fatty acids (SCFAs) from sewage sludge. The combination of percarbonate and ferrate showed obvious synergistic effects on SCFAs accumulation and sludge reduction. Mechanism explorations demonstrated that the combination enhanced sludge solubilization, substrate biodegradability, and altered the physiochemical properties of sludge to favor organics fermentation. Further investigations revealed that the combination improved key enzyme activities associated with hydrolysis and SCFAs formation, while inhibiting SCFAs consumption. The combination also altered microbial structures and compositions, leading to the enrichment of key microbes that facilitate SCFAs accumulation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
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)