Journal of the Taiwan Institute of Chemical Engineers最新文献

{"title":"Facile construction of binary metal oxide heterojunction with hexagonal boron nitride nanohybrid electrocatalyst for the detection of flutamide","authors":"Thangavelu Sakthi Priya ,&nbsp;Tse-Wei Chen ,&nbsp;Shen-Ming Chen ,&nbsp;Thangavelu Kokulnathan ,&nbsp;Faheem Ahmed ,&nbsp;Afzal Hussain ,&nbsp;Mohamed Fahad Alajmi","doi":"10.1016/j.jtice.2024.105706","DOIUrl":"10.1016/j.jtice.2024.105706","url":null,"abstract":"<div><h3>Background</h3><p>Flutamide (FU) is a potential anti-androgen drug significantly prescribed to all human beings. The high solubility and poor degradability of its metabolites can adversely affect the balance of the ecosystem. Therefore, developing an efficient and reliable technique to detect this pollutant is essential. Consequently, electrochemical sensors have been widely used for the monitoring of various real-world samples.</p></div><div><h3>Methods</h3><p>Hence, nickel-zinc oxide (NZO) with hexagonal boron nitride (h-BN) nanocomposite was prepared as a proficient electrocatalyst in FU detection. Several spectroscopic measurements were carried out to characterize the prepared materials. Our NZO/h-BN nanocomposite was utilized to modify the glassy carbon electrode (GCE) and its relative catalytic activity was scrutinized with impedance and various voltammetric techniques.</p></div><div><h3>Significant findings</h3><p>Based on the results, our NZO/h-BN/GCE sensor exhibited high conductance, appreciable linear ranges, low detection limit (0.002 μM), optimal sensitivity (2.149 µA µM⁻¹ cm⁻²), and high selectivity with good repeatability, and reproducibility results. Furthermore, the practical utility of the sensor was studied by monitoring FU in human and environmental samples. Based on the outcomes, our NZO/h-BN/GCE is a promising electrochemical platform for the detection of FU.</p></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"165 ","pages":"Article 105706"},"PeriodicalIF":5.5,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142083251","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}

{"title":"The catalytic deoxygenation reaction temperature and N2 gas flow rate influence the conversion of soybean fatty acids into Green Diesel","authors":"R.S.R.M. Hafriz ,&nbsp;S.H. Habib ,&nbsp;N.A. Raof ,&nbsp;S.Z. Razali ,&nbsp;R. Yunus ,&nbsp;N.M. Razali ,&nbsp;A. Salmiaton","doi":"10.1016/j.jtice.2024.105700","DOIUrl":"10.1016/j.jtice.2024.105700","url":null,"abstract":"<div><h3>Background</h3><p>Green diesel is a promising alternative as a petroleum replacement given the worldwide demand for petroleum fuel. Environmental issues have drawn public attention and concerns towards advancing renewable energy development. A catalytic deoxygenation (deCOx) was carried out to produce green diesel from soybean oil (SO) using a low-cost NiO-doped calcined dolomite (NiO<img>CD) catalyst.</p></div><div><h3>Method</h3><p>The structure, chemical composition and morphology of NiO<img>CD were comprehensively characterized by XRF, BET, TPD-CO₂, SEM and TEM. In this study, the effect of two operating parameters, reaction temperature and flow rate of nitrogen, was discovered using a one-factor-at-a-time (OFAT) optimisation study. In addition, the life cycle cost analysis (LCCA) of stepwise catalyst preparation and green diesel production has been performed.</p></div><div><h3>Significant findings</h3><p>An optimal reaction temperature of 420 °C was found to provide the highest yield of green diesel (47.13 wt.%) with an 83.51% hydrocarbon composition. The ideal nitrogen flow rate, however, was found to be 50 cm³/min, which produced 41.80 wt.% of green diesel with an 88.63% hydrocarbon composition. The deoxygenation reaction was significantly impacted by both reaction temperature and nitrogen flow rate. According to LCCA, NiO<img>CD catalyst has potential to lower the overall cost of producing green diesel compared to commercial zeolite catalysts.</p></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"165 ","pages":"Article 105700"},"PeriodicalIF":5.5,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1876107024003584/pdfft?md5=2078a7c2276d1ce0f980fecd76a8fdbb&pid=1-s2.0-S1876107024003584-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142076448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sheep bone powder modified PVDF membrane for highlyefficient oil-in-water emulsion separation","authors":"Junshuang Zhang ,&nbsp;Xingran Lao ,&nbsp;Xiaofeng Jiang ,&nbsp;Zonghang Li ,&nbsp;Wenwen Feng ,&nbsp;Lidan Chen","doi":"10.1016/j.jtice.2024.105730","DOIUrl":"10.1016/j.jtice.2024.105730","url":null,"abstract":"<div><h3>Background</h3><p>The wetting properties and roughness modification of membrane surfaces are crucial for their application in emulsion separation. However, traditional membrane modification methods suffer from high cost, complex preparation, and secondary pollution.</p></div><div><h3>Methods</h3><p>In this study, a novel, simple, and economical interfacial engineering method was developed using tannic acid (TA), sodium alginate (SA), and sheep bone powder (BP) as raw materials. Through vacuum filtration, these materials were deposited onto polyvinylidene fluoride (PVDF) membrane to fabricate superhydrophilic/underwater superoleophobic filtration membrane (PDBS). BP induced surface roughness and wetting properties to the membrane, while preserving the porous structure of the substrate membrane. The complex formed by TA and SA encapsulated BP onto the surface of PVDF microfiltration membrane, enhancing its mechanical properties.</p></div><div><h3>Significant Findings</h3><p>The prepared membrane exhibited a membrane flux of 347 Lm⁻²h⁻¹ bar⁻¹ and a separation efficiency of 99.9 % for emulsified oil. Furthermore, after soaking in NaCl solution for 30 h, the membrane still showed excellent stability. Therefore, this study developed a new membrane surface modification strategy with promising application prospects in oily wastewater treatment.</p></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"165 ","pages":"Article 105730"},"PeriodicalIF":5.5,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142076449","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}

{"title":"Rational design of amine-terminated terephthalate in bismuth metal-organic framework for boosting sunlight-catalytic removal of organic pollutants","authors":"Dhanaprabhu Pattappan ,&nbsp;Chen-Jie Liao ,&nbsp;Raju Suresh Kumar ,&nbsp;Sivalingam Ramesh ,&nbsp;Ramasamy Thangavelu Rajendra Kumar ,&nbsp;Woochul Yang ,&nbsp;Yuvaraj Haldorai ,&nbsp;Yi-Ting Lai","doi":"10.1016/j.jtice.2024.105725","DOIUrl":"10.1016/j.jtice.2024.105725","url":null,"abstract":"<div><h3>Background</h3><p>Bismuth-based metal-organic frameworks (Bi-MOFs) have garnered significant interest in energy and environment-related applications. Here, we report a Bi-MOFs synthesized by amino terephthalic acid (Bi-MOF (ATP)) and Bi-MOF (CAU-17), the developed Bi-MOF (ATP) shows exceptional photocatalytic efficiency in degrading both cationic and anionic pollutants, crystal violet (CV) fast green (FG) under solar light exposure.</p></div><div><h3>Methods</h3><p>The CAU-17 and Bi-MOF (ATP) were prepared by the solvothermal method. However, only the Bi-MOF (ATP) ability to absorb visible spectrum and degradation of pollutants can be attributed to several factors, including the diminished particle sizes, mitigated recombination of charge carriers, oxidation of nitrogen during photocatalytic reactions, and a favorable bandgap of positioning within the visible spectrum.</p></div><div><h3>Significant findings</h3><p>The Mott-Schottky plot and electron paramagnetic resonance analyses confirmed a Bi-MOF (ATP) generated free radicals (·O₂‾). The remarkable photocatalytic degradation of CV and FG can achieve 92 % and 95 %, respectively. Notably, the catalyst retains robust stability throughout reusability assessments, maintaining its degradation efficiency without compromising the integrity of its crystalline structure and morphology. This study sheds light on the promising potential of Bi-MOFs (ATP) as effective photocatalysts for pollution under solar light.</p></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"165 ","pages":"Article 105725"},"PeriodicalIF":5.5,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142076450","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}

{"title":"Scaling down recombinant carbonic anhydrase isolation with immobilized metal ion chromatography (IMAC): Harnessing enzymatic carbon dioxide capture and mineralization","authors":"Yi-Chuan Chang ,&nbsp;Shen-Yuan Yang ,&nbsp;Jia-Yih Lin ,&nbsp;Nguyen The Duc Hanh ,&nbsp;Penjit Srinophakun ,&nbsp;Chen-Yaw Chiu ,&nbsp;Bing-Lan Liu ,&nbsp;I-Son Ng ,&nbsp;Kuei-Hsiang Chen ,&nbsp;Yu-Kaung Chang","doi":"10.1016/j.jtice.2024.105727","DOIUrl":"10.1016/j.jtice.2024.105727","url":null,"abstract":"<div><h3>Background</h3><p>Human activities have led to increased atmospheric CO₂ levels, raising concerns about climate change. Carbonic anhydrase (CA) enzymes show promise for transforming CO₂ into valuable products like calcium carbonate (CaCO₃) through mineralization. Purifying and immobilizing CA enzymes on nanofiber membranes enhances their catalytic activity, enabling efficient CO₂ conversion and mineralization.</p></div><div><h3>Methods</h3><p>Recombinant CA was purified using immobilized metal affinity chromatography (IMAC), optimizing pH, biomass concentration, flow rate, and loading volume for maximum efficiency. The CA enzyme was then immobilized onto a weak ion exchange nanofiber membrane functionalized with AEA-COOH to create the CA-modified membrane (AEA-COOH-CA), enhancing CO₂ conversion and CaCO₃ mineralization.</p></div><div><h3>Significant findings</h3><p>Optimal purification conditions (pH 7, 1 % biomass, 0.1 mL/min flow rate, 1.0 mL loading volume) were determined using IMAC. The CA-modified membrane effectively converted CO₂ and mineralized CaCO₃, demonstrating the potential for environmental CO₂ sequestration. The immobilized CA activities of the AEA-COOH-CA nanofiber membranes exhibited 473.42 WAU/g-membrane, corresponding to 7.10 WAU per membrane piece. The CaCO₃ precipitation reached 83.90 mg, with a precipitation efficiency of 11.82 mg CaCO₃/WAU. These findings underscore the promise of enzymatic carbon capture using CA-modified membranes, offering a sustainable solution for greenhouse gas mitigation.</p></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"165 ","pages":"Article 105727"},"PeriodicalIF":5.5,"publicationDate":"2024-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142058594","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}

{"title":"Effect of substitution on corrosion inhibition properties of 4-(substituted fluoro, chloro, and amino) Benzophenone derivatives on mild steel in acidic medium: A combined Electrochemical, surface characterization and theoretical approach","authors":"Sanmugapriya Ravi,&nbsp;Silda Peters,&nbsp;Arockia Selvi J","doi":"10.1016/j.jtice.2024.105726","DOIUrl":"10.1016/j.jtice.2024.105726","url":null,"abstract":"<div><h3>Background</h3><p><strong>:</strong> In this study, three mono-substituted Benzophenone (BP) derivatives, 4-Fluorobenzophenone (4-F.BP), 4-Chlorobenzophenone (4-C.BP), and 4-Aminobenzophenone (4-A.BP) were investigated using a combined electrochemical, surface characterization and theoretical approach.</p></div><div><h3>Methods</h3><p><strong>:</strong> In experiment, the effectiveness of 4-F.BP, 4-C.BP, and 4-A.BP in inhibiting mild steel corrosion in a 1 N HCl solution were investigated using gravimetric measurements at several temperatures (303–333 K), electrochemical measurements (Potentiodynamic Polarization (PDP), and Electrochemical Impedance Spectroscopy (EIS)), UV–visible analysis, Surface morphology test (SEM and EDAX analysis, AFM analysis, water contact angle measurement, XPS analysis) as well as theoretical studies.</p></div><div><h3>Significant findings</h3><p><strong>:</strong> Increase in the inhibitor concentrations (160, 200, 240 and 280 ppm) exhibited a maximum percentage of inhibition efficiency (IE %) of 83.75 %, 88.75 %, and 93.75 % for 280 ppm of 4-F.BP, 4-C.BP, and 4-A.BP respectively at 303 K. However, with increase in the temperature from 303 to 333 K, IE % furthermore reduced to 52.41 %, 57.24 %, and 66.20 % at 333 K. The potentiodynamic polarization plots revealed that all molecules acted as mixed-type corrosion inhibitors and had an exceptional ability to inhibit the anodic reaction. Moreover, Scanning Electron Microscopy (SEM), Atomic force microscopy (AFM), and Contact angle measurement (CAM) confirms the formation of protective layer on the metal surface by the chosen inhibitors. The X-ray Photoelectron Spectroscopy (XPS) data confirms the bonding interaction between the functional groups and the metal surface. Furthermore, Density Functional Theory (DFT) calculation and Molecular Dynamics simulations (MD) were carried out to understand inhibition's molecular/atomic mechanisms. In summary, the suggested benzophenone derivatives are effective and economical anticorrosion agents for mild steel surfaces exposed to aggressive environments.</p></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"165 ","pages":"Article 105726"},"PeriodicalIF":5.5,"publicationDate":"2024-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142057964","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}

{"title":"Buoyancy-driven nano-suspension subject to interstitial solid/nanofluid heat transfer coefficient: Role of local thermal non-equilibrium (LTNE)","authors":"Marouan Kouki ,&nbsp;Amjad Ali Pasha ,&nbsp;M.K. Nayak ,&nbsp;Salem Algarni ,&nbsp;Talal Alqahtani ,&nbsp;Kashif Irshad","doi":"10.1016/j.jtice.2024.105702","DOIUrl":"10.1016/j.jtice.2024.105702","url":null,"abstract":"<div><h3>Background</h3><p>Because of the prominent temperature discrepancy between fluid and solid in porous material, local thermal equilibrium (LTE) is not suitable in case of high-conductivity foams and electronic equipment. In view of above situation, Darcy-Brinkman-Forchheimer model subject to local thermal non-equilibrium (LTNE) is implemented. LTNE technique finds real world applications include groundwater pollution, geothermal extraction, microwave heating, industrial separation process, and transpiration cooling featuring with porous structure. The present study aims at the investigation of the entropy and hydrothermal characteristics of buoyancy-driven TiO₂-H₂O nanofluid inside a cross-shaped domain embodying two hot and cold rings influenced by LTNE.</p></div><div><h3>Methods</h3><p>Finite element method (FEM) has been considered to solve the dimensionless form of governing equations.</p></div><div><h3>Significant findings</h3><p>Amplification of interstitial solid/nanofluid heat transfer coefficient accounts for the intensification of streamlines, velocities, and diminution of isothermal lines in both nanofluid and solid matrix phases under the influence of LTNE. Strengthening of medium porosity whittles down entropy due to thermal effects in both nanofluid and solid phases, and that ameliorates entropy due to fluid friction and porous medium irreversibilities. Local and average Nusselt numbers in nanofluid phase reduce by 29.31 %, 20.72 %, 17.16 %, and 14.78 % while that in solid phase decays by 13.18 %, 7.63 %, 4.9 %, and 2.8 % for rise in εfrom 0.1 to 0.3, 0.3 to 0.5, 0.5 to 0.7, and 0.7 to 0.9, respectively. Introduction of Darcy-Brinkman-Forchheimer model subject to LTNE yielded better results in hydrothermal behavior of TiO₂-H₂O nanofluid inside a cross-shaped domain emplacing two hot and cold rings than earlier published results.</p></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"165 ","pages":"Article 105702"},"PeriodicalIF":5.5,"publicationDate":"2024-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142047815","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}

{"title":"Facile fabrication of bismuth oxide anchored graphene oxide for the effective electrochemical sensing of diuron","authors":"Nandhini Munusamy ,&nbsp;Francis Packiaraj Don Disouza ,&nbsp;Shen-Ming Chen ,&nbsp;Kumar Krishnan ,&nbsp;Mukesh Kumar Dharmalingam Jothinathan ,&nbsp;B. Prakash","doi":"10.1016/j.jtice.2024.105708","DOIUrl":"10.1016/j.jtice.2024.105708","url":null,"abstract":"<div><h3>Background</h3><p>Diuron (DU), a weed controller widely used in the agricultural industry, prolonged conception of this agrochemical residue contaminated with environmental water bodies and soil sources could cause an acute impact on the human health system. This work utilized the electrochemical determination technique due to their rapid detection, outstanding sensitivity, and economical purpose.</p></div><div><h3>Methods</h3><p>The electrochemical behavior of DU at the γ-Bi₂O₃ microplates interconnected with sheet-like graphene oxide (GO) as a surface-modified electrode was scrutinized by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The surface-modified γ-Bi₂O₃/GO/GCE elucidates superior electrocatalytic performance towards the irreversible oxidation response of diuron than the other surface-modified electrode in the phosphate buffer solution of 0.1 M.</p></div><div><h3>Significant findings</h3><p>The γ-Bi₂O₃/GO/GCE electrode displayed an extensive detection range of 0.1–631 µM with a 0.751 µM lower detection limit furthermore, noticeable 0.0280 µA µM^-1 cm^-2 sensitivity for diuron determination. In addition, the DPV experiment exposed that the γ-Bi₂O₃/GO/GCE electrode achieves stupendous selectivity, durability, and acceptable feasibility of the real-time samples.</p></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"165 ","pages":"Article 105708"},"PeriodicalIF":5.5,"publicationDate":"2024-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142047817","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}

{"title":"Corrosion inhibition assessment of a sustainable inhibitor from the weed plant (Pouzolzia zeylanica L.) on SS-410 surface in 0.5 M HCl acidic medium","authors":"Vibha Tripathi ,&nbsp;Dwarika Prasad ,&nbsp;Rajnish Maithani ,&nbsp;Brahim El Ibrahimii","doi":"10.1016/j.jtice.2024.105693","DOIUrl":"10.1016/j.jtice.2024.105693","url":null,"abstract":"<div><h3>Background</h3><p>The research has looked into the potential of plant extracts as natural corrosion inhibitors as an alternative to synthetic ones. The study aims to investigate the ability of the weed plant <em>Pouzolzia zeylanica</em> L. extract (<em>PZE</em>) to prevent corrosion of stainless steel-410 in a 0.5 M HCl acidic medium.</p></div><div><h3>Method</h3><p>In this work, the leaf extract of <em>PZE</em> is prepared in water, and the functional activity of the prepared <em>PZ</em> water extract (<em>PZE)</em>is evaluated using various techniques. Both electrochemical and gravimetric techniques are employed in this study. The inhibitor from <em>PZ</em> inhibits the anodic region on the SS-410 surface active sites through straightforward adsorption. Experimental techniques such as UV–visible spectroscopy, FTIR, LC-MS, SEM, AFM, EDX, EIS, and computational studies demonstrate the formation of protective layers under inhibiting conditions. The gravimetric data confirms monolayer adsorption, following the Langmuir adsorption isotherm.</p></div><div><h3>Significant findings</h3><p>The data obtained demonstrate that when SS-410 is immersed directly in a corrosive solution containing dissolved inhibitor molecules, it effectively prevents corrosion. Therefore, increasing the concentration of this chemical improves its inhibitory efficiency. Indeed, the PZ inhibitor achieved a favourable experimental outcome with an efficacy of 95 % at 400 mg/L in 0.5 M HCl. Based on polarization analysis, the corrosion inhibitor exhibits anodic nature for SS-410 in 0.5 M HCl.</p></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"165 ","pages":"Article 105693"},"PeriodicalIF":5.5,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142047816","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}

{"title":"Generative Convolutional Monitoring Method for Online Flooding Recognition in Packed Towers","authors":"Yi Liu ,&nbsp;Yuxin Jiang ,&nbsp;Zengliang Gao ,&nbsp;Kaixin Liu ,&nbsp;Yuan Yao","doi":"10.1016/j.jtice.2024.105719","DOIUrl":"10.1016/j.jtice.2024.105719","url":null,"abstract":"<div><h3>Background</h3><p>Data-driven methods play an important role in monitoring the liquid flooding process for ensuring the efficient and safe operation of packed towers. However, their online recognition performance is often limited due to the imbalanced and nonlinear nature of the flooding data.</p></div><div><h3>Method</h3><p>In this work, a generative convolutional monitoring (GCM) method is proposed for online flooding recognition. Firstly, a generative model by integrating variational autoencoder with Wasserstein generative adversarial networks is designed to generate information-rich flooding images for enlarging the diversity of the dataset. Secondly, the convolutional neural network is employed for the online recognition of flooding. Finally, feature visualization explains the details of the GCM method in terms of feature extraction. Consequently, the proposed method extracts nonlinear characteristics while overcoming the difficulties associated with unbalanced data.</p></div><div><h3>Significant findings</h3><p>Experiments on a lab-scale packed tower demonstrate the feasibility of the proposed approach. The flooding state in packed towers can be online detected.</p></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":"165 ","pages":"Article 105719"},"PeriodicalIF":5.5,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142040835","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}