Review
Environmental Sciences
Z. T. Yaqub, B. O. Oboirien, H. Leion
Summary: Chemical Looping Combustion (CLC) has been found to be a better alternative for converting Municipal Solid Waste (MSW) to energy and reducing the generation of dioxins. This study comprehensively reviews the experimental studies, oxygen carriers, reactor types, and performance evaluation of CLC of MSW. Plastic waste has received the most attention under CLC conditions due to its potential to reduce the emission of dioxins and furans. Alkaline earth metals modified iron ore has shown to be the most effective oxygen carrier, while the fluidized bed reactor is the preferred configuration for CLC of MSW.
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
(2023)
Article
Environmental Sciences
Z. T. Yaqub, B. O. Oboirien, A. T. Akintola
Summary: This study evaluated the chemical looping combustion of Municipal Solid Waste (MSW) using Chemcad(R) process simulation software, showing that the IG-CLC process had higher CO2 yield compared to the CLOU process, while the CLOU process had slightly higher combustion efficiency than the IG-CLC process. When blending paper and plastics, the chlorine formation decreased for most plastics except PVC.
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
(2021)
Review
Energy & Fuels
Dunyu Liu, Chaoran Wang, Yunpei Fan, Qiuqi Liu, Xudong Wang, Kailong Xu, Jing Jin, Jingjing Ma, Jinchen Ma
Summary: Chemical looping combustion (CLC) of coal for carbon capture utilization and storage is an effective technology to reduce carbon emission. However, there is uncertainty in mercury emission from both air and fuel reactor. This paper aims to reveal the mechanisms for the transformation of mercury-related species.
Article
Engineering, Environmental
Jimin Zeng, Jun Yuan, Lihui Jiang, Shihe Chen, Shaonan Zhang, Zhichao Li
Summary: The study focused on the reactions between solid fuel and gas intermediates in a chemical looping combustion (CLC) reactor, identifying carbon gasification as a control step and determining that the diffusional resistance of 45-75 μm char particles can be ignored.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Applied
Xiaochao Zhu, Songjiang Li, Jian Li, Shengquan Zhou, Beibei Yan, Yunan Sun, Guanyi Chen
Summary: Flue gas torrefaction is a promising method to improve fuel properties of municipal solid waste. It shows superior potential compared to nitrogen torrefaction in reducing mass and energy losses, enhancing thermal stability and reducing gaseous pollutant emissions.
FUEL PROCESSING TECHNOLOGY
(2022)
Review
Energy & Fuels
Antonio Coppola, Fabrizio Scala
Summary: Chemical looping combustion of solid biomass has the unique potential to generate energy with negative carbon emissions, but faces challenges related to oxygen carrier performance, interaction with biomass ash components, and efficiency of gas-solid contact, which require further research and development for commercialization.
Article
Engineering, Chemical
Neng Huang, Xin Gao, Ayokunle Omosebi, Dimitrios Koumoulis, Kunlei Liu
Summary: This study reports a method and findings on enriching iron from bauxite waste using chemical looping combustion. The results showed that iron in the red mud particles distributed uniformly and migrated outward during the 148 redox cycles, while the attrited iron-oxide particles were concentrated in the filters.
Article
Energy & Fuels
Wu Yang, Deepak Pudasainee, Rajender Gupta, Wei Li, Ben Wang, Lushi Sun
Summary: The submicron particles generated from MSW combustion mainly consist of organic components, alkali chlorides, alkali sulfates, and refractory inorganic minerals. The formation of submicron particles includes five modes: condensation, nucleation, accumulation, crystallization, and fragmentation.
Article
Thermodynamics
Wenbo Zhu, Richard A. Yetter, J. Eric Boyer, Adri C. T. van Duin
Summary: Copper-based chemical-looping combustion is a promising process that utilizes solid carbon fuels. This study investigates the reaction kinetics of different fuels using molecular dynamics simulations and experiments. The results show that the reaction kinetics of different fuels are temperature-dependent and related to the oxygen uncoupling of copper oxide nanoparticles.
COMBUSTION AND FLAME
(2022)
Article
Chemistry, Applied
Yutong Gong, Xiaojia Wang, Delu Chen, Bashar Mohammed Hamzah
Summary: The importance of carbon stripper (CS) in chemical looping combustion systems, the separation mechanisms of existing CS methods, and the carbon capture efficiency of different types of CS technologies are discussed in this paper.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Mohsen Banifateme, Ali Behbahaninia, Gloria Pignatta
Summary: This research aims to perform solid waste analysis in waste-to-energy power plants without sampling, using an inverse solution method. A simulated experiment is conducted to evaluate the stability and accuracy of the method, and results show the feasibility of the proposed method. The method is then applied to estimate the municipal solid waste composition and mass flow rate in the Aradkooh power plant in Tehran, Iran, demonstrating its effectiveness.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Applied
Junjie He, Lianming Li, Hong Feng, Mingnan Jiang, Jiayu Li, Linlin Guo, Jie Zhang, Pingheng Zhang, Jun Gong, Qunxing Huang
Summary: The structural properties of soot particles released during the pellet combustion of different municipal solid waste were investigated. The results showed that waste component materials strongly influenced the mass and morphology of the soot particles. Plastic waste resulted in higher mass and more compact morphology compared to biomass and kitchen waste. Nanostructural characterization revealed that paper and kitchen waste had the highest graphitization degree in the soot.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Engineering, Environmental
Daofeng Mei, Carl Linderholm, Anders Lyngfelt
Summary: In the process of Chemical Looping Combustion (CLC), further conversion of unconverted fuel gases is necessary to achieve complete combustion. Experimental results demonstrate that adding oxygen to the post-oxidation chamber (POC) can significantly enhance the oxidation efficiency of fuel gases, leading to higher gas conversion rates.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Energy & Fuels
Barnali Bhui, Banabir Das, V Prabu
Summary: Electronic waste poses a serious threat to the environment, but the metals and polymers in PCB boards can be used as potential oxygen carriers in the chemical looping combustion process. Experimental studies demonstrate the feasibility of utilizing PCB based oxygen carriers in CLC for environmental sustainability.
Article
Energy & Fuels
Tao Lin, Yanfen Liao, Tonghua Dai, Xiaoqian Ma
Summary: This study uses numerical simulations to analyze the effect of sludge blending ratio on the combustion characteristics and optimize the SNCR spray gun structure in a 750 t/d waste incinerator. The results show that 13% is the suitable maximum sludge blending rate, and using five spray guns is a more suitable SNCR solution with a denitrification efficiency of 45.40%. These findings provide support and reference for optimizing the working conditions and design of waste incinerators.
Article
Engineering, Chemical
Huang Yuqing, Xinmin Liu, Xiude Hu, Qingjie Guo
Summary: The modified resin was used as a multifunctional biological carrier for phenolic wastewater treatment in an anaerobic fluidized bed microbial fuel cell. The modified resin composite material was prepared by polymerizing conductive polyaniline on the surface and pores of macroporous adsorption resin. Various modified resins were prepared and characterized using Fourier-transform infrared spectroscopy, scanning electron microscopy, specific surface area, and pore structure analysis. Molecular dynamics simulation was used to analyze the interaction forces and cohesive energy density, providing qualitative agreement with experimental data. When the modified resin with a mass ratio of resin to aniline of 1:0.6 was used, significant improvements in chemical oxygen demand removal efficiency, voltage, and power density were observed in the AFB-MFC.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Review
Energy & Fuels
Mei An, Qingjie Guo, Xianyong Wei
Summary: The reaction mechanism of H2S and Hg0 on CuFe2O4 with oxygen vacancy structure was investigated using X-ray photoelectron spectroscopy (XPS) characterization and Density Functional Theory (DFT) calculations. The results showed that oxygen vacancies enhanced the adsorption capacity of CuFe2O4 towards Hg, H2S, and HgS, and improved the energy barrier and thermodynamic stability of key intermediates.
Article
Green & Sustainable Science & Technology
Hongjing Tian, Yixing Che, Shengnan Xu, Jixing Tang, Hui Wang, Man Wu, Qingjie Guo
Summary: The catalysts using cobalt ferrite (CoxFe(3-x)O(4)) and sphere mesoporous silica (MCM-41) nanoparticles as support were found to enhance the oxidation rate of MgSO3 under moderate temperatures. The combination of electric field and CoFe2O4/MCM-41 showed a synergistic effect, significantly increasing the oxidation rate of MgSO3 compared to when only one factor was present. The study also revealed the mechanism of the catalytic oxidation of MgSO3, involving the reduction of oxidation potential and increased electron transfer rate.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Chemical
Ruotong Wang, Tuo Guo, Xiaoju Xiang, Yinmei Yin, Qingjie Guo, Yanxia Wang
Summary: In this research, solid amine adsorbents were functionally modified with sulphur-containing antioxidant 2-mercaptobenzimidazole (MB) to prevent amine group oxidation. The modified adsorbents showed a decrease in CO2 adsorption capacity of only 16.8% after 30 cycles, compared to a decrease of 63.2% for unmodified adsorbents. This indicates that MB modification can effectively inhibit the oxidative degradation of solid amine adsorbents and improve their antioxidant stability.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Jianping Yang, Yuanyuan Na, Yingchao Hu, Penglin Zhu, Fanyue Meng, Qingjie Guo, Zequn Yang, Wenqi Qu, Hailong Li
Summary: Circulating adsorbents integrating elemental mercury adsorption and oxidized mercury decomposition/desorption processes were used for simultaneous adsorbent recycling and mercury recovery. The formation of granulated adsorbent pellets reduced elutriation in the system. La0.8Ce0.2MnO3 perovskite adsorbent was molded into pellets using an extrusion-spheronization method with microcrystalline cellulose (MC) as a pore-creating template. The pellets showed excellent Hg0 removal efficiency and durability in a wide temperature range, with slight interference from SO2 and H2O and enhancement from O2 and NO. The presence of pore channels in the pellets allowed for efficient Hg0 diffusion and in-situ retention during high-temperature burning.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Analytical
Huifen Kang, Xintong Guo, Mei An, Qingjie Guo, Guozhang Chang
Summary: A combination of Ca-Fe and HZSM-5 catalysts was proposed to enhance the yields of aromatic hydrocarbons from pinecone pyrolysis. The performance of the catalysts and the mechanism of enhanced aromatic hydrocarbon generation were investigated. The results showed that the combination of Ca-Fe and HZSM-5 catalysts produced the largest peak area and highest relative content of aromatic hydrocarbons. The introduction of Ca-Fe components increased the yield of aromatics, especially benzene, toluene, ethylbenzene, and xylene.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Materials Science, Multidisciplinary
Cheng Zuo, Xishi Tai, Qian Su, Zaiyong Jiang, Qingjie Guo
Summary: In the field of photocatalysis, loaded photocatalyst offers advantages of controlled morphology, uniform preparation, low cost, and easy recovery, making it a potential substitute for powder photocatalysts. In this study, TiO2 and Cu7S4 hybrid materials with oxygen vacancies grown on copper mesh were prepared. The enhanced photocatalytic performance of the material can be attributed to the synergistic effect between the interfacial electric field of the heterostructure and the abundant oxygen vacancies. This research provides insights into the design of S-scheme photocatalysts for efficient nitrogen reduction.
Article
Engineering, Chemical
Zhuangmei Li, Ying Zhu, Na Li, Hui Zhang, Yuhua Wu, Ping Li, Qingjie Guo, Hongcun Bai
Summary: Understanding the reactive mechanism of coal thermochemical conversion is crucial for the efficient utilization of coal. However, the evolution of coal macromolecular structure, reactants, and products at particle and molecular scales remains unclear. This study used reactive force field molecular dynamics to uncover the reactive mechanism and nitrogen transformation during the combustion of HSW coal at microscopic scales. The effects of chemical equivalent and combustion temperature were investigated to explore the structural evolution, combustion reactants, and products. The results revealed observable changes in coal structure fracture during the continuous reaction. Furthermore, the study established the transformation networks of organic nitrogen in combustion and identified the pathway for the formation of HCN, NO, and NO2.
Article
Engineering, Chemical
Yunlei Zhao, Bo Jin, Zhineng Zhang, Kun Huang, Yakun Wang, Xiao Luo, Qingjie Guo, Zhiwu Liang
Summary: Using self-templated metal-organic framework (MOF) to develop efficient iron-based oxygen carriers is an effective way, but the effect of metal oxide-support interaction and crystal structure on the reactivity of MOF-derived iron-based materials is still unclear.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Ziheng Han, Huifen Kang, Nini Yuan, Xintong Guo, Jingjing Ma, Qingjie Guo
Summary: Selenium pollution from coal utilization is a growing concern. Calcium-iron oxygen carriers and alkali metal ions have inhibitory effects on selenium, reducing its emissions. The retention mechanisms of selenium by Fe2O3, CaFe2O4, Ca2Fe2O5, and bottom ash were investigated. Iron-based oxygen carriers can oxidize H2Se(g) to SeO2(g) and release lattice oxygen to form an Fe-O-Se structure and retain selenium. CaFe2O5 showed the highest retention rate of 32.301%. Bottom ash gradually increased selenium retention, with alkali metal ions playing a crucial role. This study provides a new approach to selenium removal using oxygen carriers and bottom ash during chemical looping gasification.
Article
Chemistry, Physical
Wenlong Song, Qiqi Zhu, Kangzhou Wang, Rui Zhu, Qingxiang Ma, Tiansheng Zhao, Qingjie Guo, Xinhua Gao, Jianli Zhang
Summary: This study reports the positive role of residual sodium on the structural properties and catalytic performance of FeAlNa catalysts for olefins synthesis. The residual sodium improves the reduction behavior of Fe species and CO adsorption, inhibits secondary hydrogenation, and also inhibits the interaction between Fe and Al. The modified catalyst achieves a high olefins/paraffins ratio and low CH4 selectivity.
Article
Engineering, Environmental
Chenglong Wang, Lerao Wang, Xumei Tao, Liang Huang, Zaiqing Yang, Qingjie Guo
Summary: Fe-MOFs@Fe2O3 composites were prepared using BDB plasma method with recycle of waste PET, showing high specific surface areas and a low electron-hole complexation rate. These composites exhibited good photocatalytic performance, degrading 99.3% of malachite green within 30 min under visible light. This method provides a new approach for recycling waste PET plastics and preparing new energy functional materials.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Zhaoxin Wan, Xiude Hu, Chengbo Li, Jiawei Zhang, Qi Wang, Long Fang, Linlin Zhang, Qingjie Guo, Deshuai Sun
Summary: SO2 and NO, the main precursors of acid rain, regional haze, and photochemical smog from coal combustion, can be simultaneously removed through advanced oxidation strategies. Two metal-organic frameworks (MOFs), FeBDC and CuFeBDC, were synthesized to activate peroxymonosulfate (PMS) for the oxidation and absorption of flue pollutants. CuFeBDC exhibited efficient catalytic properties for the removal of NO and SO2 in PMS solution and could be recycled and regenerated.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Energy & Fuels
Liangliang Meng, Ying Zhu, Meilin Zhu, Ge Wu, Wenqian Guo, Chang Geng, Na Li, Rou Feng, Hui Zhang, Qingjie Guo, Hongcun Bai
Summary: Uncovering the reaction mechanism of various fuels to chemical looping combustion (CLC), especially depolymerization of solids in a complex environment, is an important scientific issue. This work presents molecular insights into the reaction behaviors and mechanism for several aromatic structures in the fuel reactor of CLC. It is found that the reaction process of aromatic fuels reacted with Fe2O3 as oxygen carriers in CLC can be divided into four stages, and the decomposition rate of fuel molecules is relevant to the reaction temperature and aromatic sizes.
JOURNAL OF THE ENERGY INSTITUTE
(2023)
Article
Chemistry, Multidisciplinary
Mengdong Nie, Tuo Guo, Fangyuan Qiang, Man Wu, Yongzhuo Liu, Qingjie Guo, Yurong He
Summary: Controlling the metal-support interaction is crucial for the construction of efficient catalytic systems. In this study, different Cu-CeOx interactions were achieved by preparing CuO/MnCeOx catalysts with varying Mn content. The influence of Mn content on the performance of the catalysts during CO2 hydrogenation to CH3OH was analyzed, and the optimal Mn content was determined to be 20%. The catalyst with 20% Mn content (CuO/Mn0.2CeOx) showed the best catalytic behavior, with a methanol space-time yield of 0.25 gCH3OH gcat-1 h-1 at 260 degrees C. It had the highest concentration of oxygen vacancies and Cu0, as well as medium-to-strong basic sites, which were generated by the strongest metal-support interactions between CuO and MnCeOx solid solution. In situ diffuse reflectance infrared Fourier-transform spectroscopy evidence indicated that the CO2 methanolization over CuO/MnCeOx catalysts proceeded via a formate mechanism. These findings are highly significant for the development of new, efficient CO2 hydrogenation catalysts by controlling oxygen vacancies and surface basic sites through rational alteration of the metal-support interaction.
REACTION CHEMISTRY & ENGINEERING
(2023)
Article
Engineering, Environmental
Xinping Zhang, Yuxin Guo, Xiaoyang Liu, Shun-Yu Wu, Ya-Xuan Zhu, Shao-Zhe Wang, Qiu-Yi Duan, Ke-Fei Xu, Zi-Heng Li, Xiao-Yu Zhu, Guang-Yu Pan, Fu-Gen Wu
Summary: This study develops a nanotrigger HCFT for simultaneous photodynamic therapy and light-triggered ferroptosis therapy. The nanotrigger can relieve tumor hypoxia, induce enhanced photodynamic reaction, and facilitate the continuation of Fenton reaction, ultimately leading to lethal ferroptosis in tumor cells.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Olumide Bolarinwa Ayodele, Toyin Daniel Shittu, Olayinka S. Togunwa, Dan Yu, Zhen-Yu Tian
Summary: This study focused on the semihydrogenation of acetylene in an ethylene-rich stream using two alloyed Pt catalysts PtCu and PtCo. The PtCu catalyst showed higher activity and ethylene yield compared to PtCo due to its higher unoccupied Pt d-orbital density. This indicates that alloying Pt with Cu is more promising for industrial relevant SHA catalyst.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Guowei Chen, Wen-Cheng Chen, Yaozu Su, Ruicheng Wang, Jia-Ming Jin, Hui Liang, Bingxue Tan, Dehua Hu, Shaomin Ji, Hao-Li Zhang, Yanping Huo, Yuguang Ma
Summary: This study proposes an intramolecular dual-locking design for organic luminescent materials, achieving high luminescence efficiency and performance for deep-blue organic light-emitting diodes. The material also exhibits unique mechanochromic luminescence behavior and strong fatigue resistance.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Joren van Stee, Gregory Hermans, Jinu Joseph John, Koen Binnemans, Tom Van Gerven
Summary: This work presents a continuous solvent extraction method for the separation of cobalt and nickel in a millifluidic system using Cyphos IL 101 (C101) as the extractant. The optimal conditions for extraction performance and solvent properties were determined by investigating the effects of channel length, flow rate, and temperature. The performance of a developed manifold structure was compared to a single-channel system, and excellent separation results were achieved. The continuous separation process using the manifold structure resulted in high purity cobalt and nickel products.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Yan Xu, Jingai Jiang, Xinyi Lv, Hui Li, Dongliang Yang, Wenjun Wang, Yanling Hu, Longcai Liu, Xiaochen Dong, Yu Cai
Summary: A programmed gas release nanoparticle was developed to address the challenges in treating diabetic infected wounds. It effectively removes drug-resistant pathogens and remodels the wound microenvironment using NO and H2S. The nanoparticle can eliminate bacteria and promote wound healing through antibacterial and anti-inflammatory effects.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Tong Xia, Zhilin Xi, Lianquan Suo, Chen Wang
Summary: This study investigated a highly efficient coal dust suppressant with low initial viscosity and high adhesion-solidification properties. The results demonstrated that the dust suppressant formed a network of multiple hydrogen bonding cross-linking and achieved effective adhesion and solidification of coal dust through various chemical reactions.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jinzhi Cai, Zhenshan Li
Summary: A density functional theory-based rate equation was developed to predict the gas-solid reaction kinetics of CaO carbonation with CO2 in calcium looping. The negative activation energy of CaO carbonation close to equilibrium was accurately predicted through experimental validation.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Jianxiong Chen, Fuhao Ren, Ningning Yin, Jie Mao
Summary: This study presents an economically efficient and easily implementable surface modification approach to enhance the high-temperature electrical insulation and energy storage performance of polymer dielectrics. The self-assembly of high-insulation-performance boron nitride nanosheets (BNNS) on the film surface through electrostatic interactions effectively impedes charge injection from electrodes while promoting charge dissipation and heat transfer.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Zijian Li, Zhaohui Yang, Shao Wang, Hongxia Luo, Zhimin Xue, Zhenghui Liu, Tiancheng Mu
Summary: This study reports a strategy for upgrading polyester plastics into value-added chemicals using electrocatalytic methods. By inducing the targeted transfer of *OH species, polyethylene terephthalate was successfully upgraded into potassium diformate with high purity. This work not only develops an excellent electrocatalyst, but also provides guidance for the design of medium entropy metal oxides.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Navneet Singh Shekhawat, Surendra Kumar Patra, Ashok Kumar Patra, Bamaprasad Bag
Summary: This study primarily focuses on developing a sulphur dyeing process at room temperature using bacterial Lysate, which is environmentally friendly, energy and cost effective, and sustainable. The process shows promising improvements in dye uptake and fastness properties.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Dengjia Shen, Hongyang Ma, Madani Khan, Benjamin S. Hsiao
Summary: This study developed cationic PVC nanofibrous membranes with high filtration and adsorption capability for the removal of bacteria and hexavalent chromium ions from wastewater. The membranes demonstrated remarkable performance in terms of filtration efficiency and maximum adsorption capacity. Additionally, modified nanofibrous membranes were produced using recycled materials and showed excellent retention rates in dynamic adsorption processes.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Xiaoyan Wang, Zhikun Wang, Ben Jia, Chunling Li, Shuangqing Sun, Songqing Hu
Summary: Inspired by photosystem II, self-supported Fe-doped NiCoP nanowire arrays modified with carboxylate were constructed to boost industrial-level overall water splitting by employing the concerted proton-coupled electron transfer mechanism. The introduction of Fe and carboxyl ligand led to improved catalytic activity for HER and OER, and NCFCP@NF exhibited long-term durability for overall water splitting.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Pengyao Yu, Ge Yang, Yongming Chai, Lubomira Tosheva, Chunzheng Wang, Heqing Jiang, Chenguang Liu, Hailing Guo
Summary: Thin LTA zeolite membranes were prepared through secondary growth of nano LTA seeds in a highly reactive gel, resulting in membranes with superior permeability and selectivity in gas separation applications.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Baiqin Zhou, Huiping Li, Ziyu Wang, Hui Huang, Yujun Wang, Ruichun Yang, Ranran Huo, Xiaoyan Xu, Ting Zhou, Xiaochen Dong
Summary: The use of machine learning to predict the performance of specific adsorbents in phosphate adsorption shows great promise in saving time and revealing underlying mechanisms. However, the small size of the dataset and insufficient detailed information limits the model training process and the accuracy of results. To address this, the study employs a fuzzing strategy that replaces detailed numeric information with descriptive text messages on the physiochemical properties of adsorbents. This strategy allows the recovery of discarded samples with limited information, leading to accurate prediction of adsorption amount, capacity, and kinetics. The study also finds that phosphate uptake by adsorbents is generally through physisorption, with some involvement of chemisorption. The framework established in this study provides a practical approach for quickly predicting phosphate adsorption performance in urgent scenarios, using easily accessible information.
CHEMICAL ENGINEERING JOURNAL
(2024)
Article
Engineering, Environmental
Paula Alejandra Lamprea Pineda, Joren Bruneel, Kristof Demeestere, Lisa Deraedt, Tex Goetschalckx, Herman Van Langenhove, Christophe Walgraeve
Summary: This study evaluates the use of four esterified fatty acids and three vegetable oils as absorption liquids for hydrophobic VOCs. The experimental results show that isopropyl myristate is the most efficient liquid for absorbing the target VOCs.
CHEMICAL ENGINEERING JOURNAL
(2024)
