Chinese Journal of Chemical Engineering最新文献_第8页

Fe, N-decorated carbocatalyst based on Fe-MOF as PDS activator for efficient sulfadiazine degradation: An electron transfer process 基于Fe- mof的Fe， n修饰碳催化剂作为高效降解磺胺嘧啶的PDS活化剂：一个电子转移过程

IF 3.7 3区工程技术

Chinese Journal of Chemical Engineering Pub Date : 2025-04-01 DOI: 10.1016/j.cjche.2024.11.020

Jiayi Xu , Shuang Li , Wei Zhang , Guangli Xiu

{"title":"Fe, N-decorated carbocatalyst based on Fe-MOF as PDS activator for efficient sulfadiazine degradation: An electron transfer process","authors":"Jiayi Xu , Shuang Li , Wei Zhang , Guangli Xiu","doi":"10.1016/j.cjche.2024.11.020","DOIUrl":"10.1016/j.cjche.2024.11.020","url":null,"abstract":"<div><div>In this study, a Fe, N-decorated carbocatalyst (FeCN@<em>X</em>) based on Fe-MOFs was synthesized to activate peroxydisulfate (PDS) for removing sulfadiazine (SDZ) from water. The surface morphology and structure of FeCN@<em>X</em> was characterized by scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spec troscopy. FeCN@1000, formed at the pyrolysis temperature of 1000 °C, exhibited the best catalytic performance for degrade SDZ in the presence of 0.15 g·L<sup>−1</sup> catalyst and 0.5 mmol·L<sup>−1</sup> PDS, and the reaction conversion rate was 0.199 L·mmol<sup>−1</sup>. Moreover, the effects of experimental conditions, co-existing anions and fulvic acid on catalytic performance of FeCN@1000 were investigated. The excellent potential of FeCN@1000 as a PDS activator in environmental applications was also suggested by the results of its reusability and adaptability experiments. The result of XPS, ROS quenching, EPR and electrochemical experiments showed the degradation of SDZ was primarily driven by an electron transfer process (ETP). Furthermore, Fe(III) instead of Fe(II) plays a major role in ETP, as Fe(III) sites can interact with PDS and form the low-spin surface complexes (Fe(III)/CN-PDS). Meanwhile, the small number of <sup>1</sup>O<sub>2</sub> and O<sub>2</sub><sup>−</sup><strong>·</strong> generated by the activation of PDS will promote the system degradation of SDZ activity by accelerating the conversion of Fe(II) to Fe(III). This study provides new insights for the design of novel PDS activator for efficient degradation of emerging pollutants by ETP.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"80 ","pages":"Pages 248-260"},"PeriodicalIF":3.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143785602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The phase behaviors of W/O microemulsion with Cu(Ac)2 -Zn(Ac)2 solution as aqueous phase 研究了以Cu(Ac)2 -Zn(Ac)2溶液为水相的W/O微乳液的相行为

IF 3.7 3区工程技术

Chinese Journal of Chemical Engineering Pub Date : 2025-04-01 DOI: 10.1016/j.cjche.2025.01.001

Zongpeng Zou, Haoran Li, Yan Wang, Tao Zhang, Li Lv, Wenxiang Tang, Shengwei Tang

{"title":"The phase behaviors of W/O microemulsion with Cu(Ac)2 -Zn(Ac)2 solution as aqueous phase","authors":"Zongpeng Zou, Haoran Li, Yan Wang, Tao Zhang, Li Lv, Wenxiang Tang, Shengwei Tang","doi":"10.1016/j.cjche.2025.01.001","DOIUrl":"10.1016/j.cjche.2025.01.001","url":null,"abstract":"<div><div>Microemulsions are usually used to prepare nanomaterials. The formation behavior of microemulsions is crucial to the preparation of nanomaterials. Water in the internal phase is usually replaced by electrolyte solutions to prepare nanomaterials. Knowing the effects of electrolyte solution on the phase behavior of microemulsion is significant to the nanomaterial preparation. Microemulsion systems were studied by a conductivity method with cyclohexane as oil, Triton X-100 as surfactant, hexanol as cosurfactant, and deionized water or the electrolyte solutions of Cu(Ac)<sub>2</sub> and Zn(Ac)<sub>2</sub> as aqueous phases. The results showed that the replacement of water with electrolyte solution had a strong effect on the phase behavior of microemulsion system. The O/W microemulsion zone in water system was not observed in the studied electrolyte system. The shape and area of the corresponding phase zone in electrolyte system were different from that in water system. The microemulsion regions of electrolyte solution systems were always larger than that of water system. Zn(Ac)<sub>2</sub> showed a larger microemulsion region than Cu(Ac)<sub>2</sub> at 0.1 mol·L<sup>−1</sup>. The microemulsion phase region formed by 0.1 mol·L<sup>−1</sup> Zn(Ac)<sub>2</sub> + 0.1 mol·L<sup>−1</sup> Cu(Ac)<sub>2</sub> was smaller than that formed by 0.1 mol·L<sup>−1</sup> Zn(Ac)<sub>2</sub> or 0.1 mol·L<sup>−1</sup> Cu(Ac)<sub>2</sub> lonely. With the increase of electrolyte concentration in the electrolyte solution and the rise of temperature, the microemulsion region shrank gradually. The changes of interactions between different components in the system should be responsible to the variation of phase behavior. The results provide important information for the microemulsion system with electrolyte solution as aqueous phase.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"80 ","pages":"Pages 1-10"},"PeriodicalIF":3.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143746886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect analysis on degradation mechanism of dioxins under hydrothermal conditions by molecular dynamic simulation 分子动力学模拟对水热条件下二恶英降解机理的影响分析

IF 3.7 3区工程技术

Chinese Journal of Chemical Engineering Pub Date : 2025-04-01 DOI: 10.1016/j.cjche.2024.12.004

Zhengyong Xu , Yan Du , Yan Liu , Jintao Ou , Jingwei Chen , Huaming Xie

{"title":"Effect analysis on degradation mechanism of dioxins under hydrothermal conditions by molecular dynamic simulation","authors":"Zhengyong Xu , Yan Du , Yan Liu , Jintao Ou , Jingwei Chen , Huaming Xie","doi":"10.1016/j.cjche.2024.12.004","DOIUrl":"10.1016/j.cjche.2024.12.004","url":null,"abstract":"<div><div>The fly ash from waste incineration poses a serious threat to human health due to its high content of dioxins. Hydrothermal treatment is an efficient and clean method on the decomposition and detoxifying of fly ash. To study the degradation mechanism of dioxins, this paper uses molecular dynamics (MD) to simulate the hydrothermal reaction process of polychlorinated dibenzo-<em>p</em>-dioxins (PCDDs) under different conditions, and the degradation mechanism of PCDDs is obtained. The results show that the degradation of PCDDs includes two pathways: the first pathway is the substitution of Cl groups by hydroxyl groups to form low-chlorine substitution products through direct hydrogenation, and the second pathway is the formation of non-toxic benzene ring structures accompanied by the cleavage of C—O bonds. The two degradation pathways of PCDDs well explain the changes in toxicity before and after the hydrothermal treatment of fly ash, which is consistent with experimental results. This study provides theoretical guidance for the harmless treatment process of fly ash <em>via</em> hydrothermal method.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"80 ","pages":"Pages 274-280"},"PeriodicalIF":3.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143790852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation on the pyrolysis behaviors and kinetics of walnut shell lignocellulosic biomass with additives 添加剂对核桃壳木质纤维素生物质热解行为及动力学的影响

IF 3.7 3区工程技术

Chinese Journal of Chemical Engineering Pub Date : 2025-04-01 DOI: 10.1016/j.cjche.2024.10.037

Wei Zhang , Yuming Zhang , Haixin Wu , Xinyu Yang , Pei Qiao , Jiazhou Li , Zhewen Chen , Yan Wang

{"title":"Investigation on the pyrolysis behaviors and kinetics of walnut shell lignocellulosic biomass with additives","authors":"Wei Zhang , Yuming Zhang , Haixin Wu , Xinyu Yang , Pei Qiao , Jiazhou Li , Zhewen Chen , Yan Wang","doi":"10.1016/j.cjche.2024.10.037","DOIUrl":"10.1016/j.cjche.2024.10.037","url":null,"abstract":"<div><div>Utilizing calcium aluminate (CaAlO) as a catalyst in lignocellulosic biomass pyrolysis offers dual advantages of cost saving and mitigating environmental pollution from industrial waste. This study employs kinetic analysis to validate the catalytic effect of CaAlO on biomass pyrolysis. Thermalgravimetric analysis of walnut shell pyrolysis was conducted, incorporating CaAlO, CaO, and Al<sub>2</sub>O<sub>3</sub> additives to examine catalytic pyrolysis and gas release characteristics. The results reveal that CaAlO exhibits a catalytic effect similar to that of CaO and Al<sub>2</sub>O<sub>3</sub>, suggesting its potential as an effective catalyst. Activation energies obtained without additive and with CaAlO, CaO, and Al<sub>2</sub>O<sub>3</sub> by Friedman method are 184, 178, 158, and 176 kJ·mol<sup>−1</sup>, while by Flynn–Wall–Ozawa (FWO) method are 186, 179, 160, 177 kJ·mol<sup>−1</sup>. Finally, DAEM analysis was performed, and the obtained parameters were successfully coupled into three-dimensional numerical simulation with some simplifications in the distributed activation energy model (DAEM) integration to reduce calculation cost, showing its potential applicability in biomass pyrolysis investigation.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"80 ","pages":"Pages 303-314"},"PeriodicalIF":3.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Comparative energetic, economic and exergoeconomic assessments of direct heat exchange and heat pumps for waste heat recovery considering regional impacts 考虑到区域影响，对直接换热和热泵回收废热进行能量、经济和排气经济比较评估

IF 3.7 3区工程技术

Chinese Journal of Chemical Engineering Pub Date : 2025-04-01 DOI: 10.1016/j.cjche.2024.12.005

Zhimin Tan , Xiao Feng , Minbo Yang , Truls Gundersen

{"title":"Comparative energetic, economic and exergoeconomic assessments of direct heat exchange and heat pumps for waste heat recovery considering regional impacts","authors":"Zhimin Tan , Xiao Feng , Minbo Yang , Truls Gundersen","doi":"10.1016/j.cjche.2024.12.005","DOIUrl":"10.1016/j.cjche.2024.12.005","url":null,"abstract":"<div><div>Recovering waste heat is essential for primary energy savings and carbon emission reduction. To provide direct and reliable suggestions for factories to recover waste heat, energetic, economic and exergoeconomic comparison between direct heat exchange (DHE) and open-cycle mechanical heat pump (MHP) under various operating conditions is carried out in this work. The price ratios <em>R</em><sub>ES</sub> (electricity to steam) and <em>R</em><sub>HS</sub> (hot water to steam) are introduced to quantify regional impacts and conduct quantitative analysis. A semi-empirical formula is obtained to explore the exergoeconomic performance of the two systems. For waste heat within 373.15−423.15 K, the exergy efficiency of the DHE with a temperature difference of 10−90 K is always lower than that of the MHP with a temperature lift of 10−50 K. The economic performance of the two systems has a break-even point, depending on the operating parameters and relative prices of electricity, steam, and hot water. Under the average <em>R</em><sub>ES</sub> (3.8) in China, if <em>R</em><sub>HS</sub> is higher than 0.748, the annual revenue of the DHE is always higher, whereas the MHP is more economical when <em>R</em><sub>HS</sub> is lower than 0.110. In regions where <em>R</em><sub>ES</sub> is higher than 4.353, the annual revenue of the MHP will be negative in some cases.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"80 ","pages":"Pages 220-230"},"PeriodicalIF":3.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Kinetic modeling and multi-objective optimization of an industrial hydrocracking process with an improved SPEA2-PE algorithm 基于改进SPEA2-PE算法的工业加氢裂化过程动力学建模与多目标优化

IF 3.7 3区工程技术

Chinese Journal of Chemical Engineering Pub Date : 2025-04-01 DOI: 10.1016/j.cjche.2024.12.003

Chen Fan, Xindong Wang, Gaochao Li, Jian Long

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Green corrosion inhibition of mild steel in acidic media using Datura stramonium seed extract: A study for sustainable engineering applications 曼陀罗种子提取物在酸性介质中对低碳钢的绿色缓蚀：可持续工程应用研究

IF 3.7 3区工程技术

Chinese Journal of Chemical Engineering Pub Date : 2025-04-01 DOI: 10.1016/j.cjche.2024.10.040

Kaoutar Hjouji , Ibrahim Atemni , Rajesh Haldhar , Moussa Ouakki , Tarik Ainane , Mustapha Taleb , Seong-Cheol Kim , Zakia Rais

{"title":"Green corrosion inhibition of mild steel in acidic media using Datura stramonium seed extract: A study for sustainable engineering applications","authors":"Kaoutar Hjouji , Ibrahim Atemni , Rajesh Haldhar , Moussa Ouakki , Tarik Ainane , Mustapha Taleb , Seong-Cheol Kim , Zakia Rais","doi":"10.1016/j.cjche.2024.10.040","DOIUrl":"10.1016/j.cjche.2024.10.040","url":null,"abstract":"<div><div>This study investigates the corrosion inhibition potential of <em>Datura stramonium</em> seed extracts on mild steel in 1.0 mol·L<sup>−1</sup> HCl and 0.5 mol·L<sup>−1</sup> H<sub>2</sub>SO<sub>4</sub>, utilizing both ethanolic and aqueous extracts as eco-friendly inhibitors. Electrochemical techniques, thermodynamic studies, and quantum chemical calculations were employed to evaluate the adsorption mechanism and inhibitory action at the metal/electrolyte interface. Maximum inhibition efficiencies of 93.1% in HCl and 97.7% in H<sub>2</sub>SO<sub>4</sub> were achieved with the ethanolic extract at a concentration of 0.2 g·L<sup>−1</sup>, while the aqueous extract demonstrated 93.8% inhibition in HCl and 96.6% in H<sub>2</sub>SO<sub>4</sub>. Polarization curves indicated mixed-type inhibition with a slight anodic bias. The thermodynamic analysis of two extracts in both environments indicated that the <em>K</em><sub>ads</sub> increased and that the Δ<em>G</em><sub>ads</sub> were close to −40 kJ·mol<sup>−1</sup>, suggesting that the adsorption followed the Langmuir isotherm, indicating a combination of physical and chemical adsorption. SEM/EDX analysis confirmed the formation of a protective layer, while quantum chemical studies further validated strong adsorption, evidenced by a low Δ<em>E</em> of 2.396 eV and an adsorption energy of −878 kcal·mol<sup>−1</sup> (1 kcal·mol<sup>−1</sup> = 4.18 kJ·mol<sup>−1</sup>). These results demonstrate that <em>Datura stramonium</em> extracts are promising inhibitors, particularly in sulfuric acid, for industrial applications. Reason: Improved clarity, vocabulary, and technical accuracy while maintaining the original meaning.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"80 ","pages":"Pages 281-302"},"PeriodicalIF":3.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143799209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental and computational insight in thermodynamic properties of binary mixtures of acetonitrile with trichloroethene or tetrachloroethene at different temperatures 不同温度下乙腈与三氯乙烯或四氯乙烯二元混合物热力学性质的实验和计算见解

IF 3.7 3区工程技术

Chinese Journal of Chemical Engineering Pub Date : 2025-04-01 DOI: 10.1016/j.cjche.2024.09.031

Hadi Taheri Parsa , Hossein Iloukhani , Khatereh Khanlarzadeh

{"title":"Experimental and computational insight in thermodynamic properties of binary mixtures of acetonitrile with trichloroethene or tetrachloroethene at different temperatures","authors":"Hadi Taheri Parsa , Hossein Iloukhani , Khatereh Khanlarzadeh","doi":"10.1016/j.cjche.2024.09.031","DOIUrl":"10.1016/j.cjche.2024.09.031","url":null,"abstract":"<div><div>Density (<em>ρ</em>), speed of sound (<em>u</em>), viscosity (<em>η</em>), and refractive index (<em>n</em><sub>D</sub>) were measured for pure acetonitrile, trichloroethene, and tetrachloroethene, as well as their binary mixtures at temperatures <em>T</em> = (293.15, 298.15, 303.15) K and at ambient pressure (81.5 kPa). From the experimental data, excess molar volume (<span><math><mrow><msubsup><mi>V</mi><mi>m</mi><mi>E</mi></msubsup></mrow></math></span>), thermal expansion coefficients (<em>α</em>), deviations in isentropic compressibility (<span><math><mrow><mo>Δ</mo><msub><mi>κ</mi><mi>s</mi></msub></mrow></math></span>), viscosity (Δ<em>η</em>), and refractive index (Δ<em>n</em><sub>D</sub>) were calculated. These values were then correlated using the Redlich-Kister polynomial equation, with fitting coefficients and standard deviations determined. Additionally, the Prigogine-Flory-Patterson (PFP) theory and the Extended Real Associated Solution (ERAS) model were employed to correlate the excess molar volume, while the Perturbed Chain Statistical Associating Fluid Theory (PC-SAFT) was used to predict the density of mixtures.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"80 ","pages":"Pages 328-340"},"PeriodicalIF":3.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143817533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and control of an extractive distillation process for separating isopropanol and water with side-stream extraction 用侧流萃取分离异丙醇和水的萃取精馏工艺设计与控制

IF 3.7 3区工程技术

Chinese Journal of Chemical Engineering Pub Date : 2025-04-01 DOI: 10.1016/j.cjche.2024.11.021

Mengqi Li, Haoyang Xu, Hui Tian

{"title":"Design and control of an extractive distillation process for separating isopropanol and water with side-stream extraction","authors":"Mengqi Li, Haoyang Xu, Hui Tian","doi":"10.1016/j.cjche.2024.11.021","DOIUrl":"10.1016/j.cjche.2024.11.021","url":null,"abstract":"<div><div>Innovating distillation technology to improve the efficiency of distillation equipment, reduce energy consumption, and increase product purity is an important challenge for the rapid development of the distillation industry. In this paper, steady-state simulations are developed for the separated isopropanol and water systems, and the sensitive temperature stage locations are determined using sensitivity and singular value decomposition (SVD). An open-loop steady-state gain analysis of the isopropanol/water system was performed, and a series of dynamic control schemes were designed and optimized to resist ±10% feed flow disturbances and ±5% feed composition disturbances, comparing the performance of the control schemes one by one through IAE error analysis. The results show that the side-stream extractive distillation separation of isopropanol and water system using a single temperature fixed reflux ratio control loop suffers from a large product shift problem. One of the key control loops is to control the isopropanol purity by controlling the bottom of the column flow rate, and the scheme performs well under both single-temperature control and dual-temperature control, effectively resisting ±10% feed flow disturbances and ±5% feed composition disturbances. The improvement of product purity can be seen from the component controllers play an important role, while the feed-forward effect under certain conditions can also enable the system to quickly restore stability and improve the system response speed.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"80 ","pages":"Pages 231-247"},"PeriodicalIF":3.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143785600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improving CO2 solubility in a hybrid sorbent of 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide/mesoporous titanium dioxide/water with confinement effect 具有约束效应的1-己基-3-甲基咪唑双（三氟甲基磺酰基）亚胺/介孔二氧化钛/水复合吸附剂改善CO2溶解度

IF 3.7 3区工程技术

Chinese Journal of Chemical Engineering Pub Date : 2025-04-01 DOI: 10.1016/j.cjche.2024.11.024

Haoran Yin , Lili Mu , Yifeng Chen , Licheng Li , Kang Sun , Xiaoyan Ji

{"title":"Improving CO2 solubility in a hybrid sorbent of 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide/mesoporous titanium dioxide/water with confinement effect","authors":"Haoran Yin , Lili Mu , Yifeng Chen , Licheng Li , Kang Sun , Xiaoyan Ji","doi":"10.1016/j.cjche.2024.11.024","DOIUrl":"10.1016/j.cjche.2024.11.024","url":null,"abstract":"<div><div>Confinement effect is an effective method to enhance carbon dioxide (CO<sub>2</sub>) solubility. In this study, a hybrid sorbent of 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([Hmim][NTf<sub>2</sub>])/mesoporous titanium dioxide (M-TiO<sub>2</sub>)/water (H<sub>2</sub>O) was developed, and its confinement effect was regulated by changing the pore structure of M-TiO<sub>2</sub>. CO<sub>2</sub> solubility in the hybrid sorbent was measured experimentally, and the thermodynamic properties including Henry's constant and desorption enthalpy were calculated. Furthermore, the confinement effect in the hybrid sorbent was quantified. Additionally, the hybrid sorbent was recycled with a multi-cycle experiment. The results showed that M-TiO<sub>2</sub> calcined at 773.2 K (MT500) could lead to an efficient confinement effect. CO<sub>2</sub> solubility in the hybrid sorbent increased by 49.8% compared to that of H<sub>2</sub>O when the mass fraction of [Hmim][NTf<sub>2</sub>]/MT500 was 5.0% (mass), where the contribution of confinement effect on Gibbs free energy occupied 5.2%.</div></div>","PeriodicalId":9966,"journal":{"name":"Chinese Journal of Chemical Engineering","volume":"80 ","pages":"Pages 100-109"},"PeriodicalIF":3.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143769290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0