Journal of the Taiwan Institute of Chemical Engineers最新文献

{"title":"Facile single-step synthesis of ZnFe2O4@biochar for synergistic adsorption and photo-Fenton degradation of RB and RBR binary dyes","authors":"Congjin Chen ,&nbsp;Wenting Gao ,&nbsp;Hui Fan ,&nbsp;Xiangru Huang ,&nbsp;Zhangfa Tong","doi":"10.1016/j.jtice.2024.105641","DOIUrl":"https://doi.org/10.1016/j.jtice.2024.105641","url":null,"abstract":"<div><h3>Background</h3><p>Biochar ferrite composites have attracted widespread interest in adsorption and photocatalysis.</p></div><div><h3>Methods</h3><p>ZnFe₂O₄@biochar (ZnFe₂O₄@C) photo-Fenton catalyst was synthesized by single-step pyrolysis strategy and characterized by SEM-EDS, FT-IR, XRD, BET, XPS, VSM, UV–vis DRS. The activity of ZnFe₂O₄@C was investigated via rhodamine B (RB) and reactive brilliant red X-3B (RBR) binary dyes photo-Fenton degradation.</p></div><div><h3>Significant Findings</h3><p>ZnFe₂O₄ was uniformly anchored on biochar and formed magnet-separable ZnFe₂O₄@C. ZnFe₂O₄@C exhibited synergistic adsorption and photo-Fenton activity. Combination ZnFe₂O₄ with biochar reduced the recombination rate of photo-generated carriers, and effectively accelerated the degradation of RB and RBR binary dyes. Under the optimal conditions, the removal efficiency of RB and RBR were both more than 99.00%, and the reaction rate constants were 0.1276 min^–1 and 0.0928 min^–1, respectively. The photo-generated holes and •OH were the main active species. The possible degradation pathways were involved in cleavage of C–N, N-de-ethylation, chromophore cleavage and benzene ring opening for RB, and deionization, cleavage of <em>N</em> = <em>N</em> and C–N, oxidization and benzene ring opening for RBR. This work provided a facile single-step synthesis strategy for ZnFe₂O₄@biochar photo-Fenton catalyst, which was magnet-separable, environment-friendly, pH adaptability-widely, and there was the potentiality for organic dyes wastewater treatment.</p></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":null,"pages":null},"PeriodicalIF":5.5,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141484288","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 adding curcumin on the characterization of castor oil-based waterborne polyurethane coating","authors":"Yi-Han Liao ,&nbsp;Yu-Zhen Lin ,&nbsp;Chia-Tzu Kao,&nbsp;Yi-Chun Chen","doi":"10.1016/j.jtice.2024.105634","DOIUrl":"https://doi.org/10.1016/j.jtice.2024.105634","url":null,"abstract":"<div><h3>Background</h3><p>This study investigates the use of curcumin as a hydroxyl chain extender in polyurethane (PU) films, which not only absorbs ultraviolet (UV) light but also acts as a polymeric dye. It evaluates the lightfastness of these films and assesses their potential for wood coating applications.</p></div><div><h3>Methods</h3><p>Curcumin-based waterborne PU (CPU) resins were prepared by the prepolymerization method using EDA (Ethylenediamine)/curcumin molar ratios of 9/1, 8/2, 7/3, 6/4, and 5/5. The CPU film was analyzed for its transparency, thermal stability, mechanical strength, and water absorption characteristics. In particular, the wood coating performance and lightfastness of the CPU resin were investigated.</p></div><div><h3>Significant findings</h3><p>The results indicate that higher curcumin content results in an increased proportion of hard segments and hydrogen bonds within the CPU film. Notably, when the EDA/curcumin molar ratio is set to 8/2, the CPU resin exhibits the highest molecular weight, particle size, and cross-linking density, thereby enhancing its tensile strength, Young's modulus, and storage modulus. The results demonstrate the CPU film's ability to absorb UV light, thereby increasing its resistance to light exposure and causing significant color changes in lightfastness tests. CPU resin holds promise for applications as a lightfast yellow coating and a light-sensitive color change indicator.</p></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":null,"pages":null},"PeriodicalIF":5.5,"publicationDate":"2024-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141479392","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":"Effects of cooler shape and position on solidification of phase change material in a cavity","authors":"Hakan F. Öztop ,&nbsp;Burak Kiyak ,&nbsp;Nirmalendu Biswas ,&nbsp;Fatih Selimefendigil ,&nbsp;Hakan Coşanay","doi":"10.1016/j.jtice.2024.105628","DOIUrl":"https://doi.org/10.1016/j.jtice.2024.105628","url":null,"abstract":"<div><h3>Background</h3><p>For balancing the imbalance between the energy supply and demand, phase-change materials (PCMs) provide an efficient means in terms of thermal energy storage and release. The performance of the energy storage is primarily dependent on the melting as well as the solidification process of the storage medium. Faster charging or discharging of the thermal energy is a primary concern for any thermal energy storage unit. On this background, the present study explores the novel approach for enhancing the solidification process of PCM considering the effects of cooler shape (namely semi-circular, triangular, and rectangular) and their position (namely top, side, and bottom) in a molten PCM-filled enclosure. The middle portion of the cooler wall is curved; whereas the remaining cooler wall is straight maintaining the same cooler wall length.</p></div><div><h3>Methods</h3><p>To analyze the solidification process, the involved transport equations are solved numerically following a finite volume-based computational approach using Ansys Fluent solver in conjunction with the appropriate boundary conditions. The computational model is generated for all the geometry comprising different shapes, as well as positions of the cooler wall. The third-order upwind scheme (QUICK) technique is utilized to discretize the momentum and energy equations. This scheme is well capable to accurately capture the gradients in the temperature and flow domains. Furthermore, the semi-implicit pressure-linked equation (SIMPLE) technique is utilised to address the pressure-velocity coupling. The resolved data are then saved as selective variables (<em>U, V</em>, and <em>θ</em>), which undergo post-processing to produce a local thermo-fluid flow field and extract average data.</p></div><div><h3>Significant findings</h3><p>The shape, as well as the position of a cooler, dictates the solidification process in an energy storage system. Thermal energy storage with a triangular-shaped cold wall positioned at the top could be opted as an appropriate design approach of an efficient energy storage system compared to a semi-circular or rectangular-shaped cooler model. The shortest solidification time of PCM occurs when the cooler wall is positioned at the top. The top position of the cooler having a triangular shape with higher Grashof number (Gr) values leads to a faster solidification process. Some ideas for possible future research areas in this field are provided after a comprehensive examination.</p></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":null,"pages":null},"PeriodicalIF":5.5,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141484178","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":"Modification of PVDF membranes using polyvinyl alcohol-crosslinked functionalized nano-silica sheets: High flux and antifouling properties for efficient oil-water separation","authors":"Imtiaz Afzal Khan ,&nbsp;Wail Falath ,&nbsp;Nadeem Baig ,&nbsp;Isam Aljundi","doi":"10.1016/j.jtice.2024.105636","DOIUrl":"https://doi.org/10.1016/j.jtice.2024.105636","url":null,"abstract":"<div><h3>Backgrounds</h3><p>Oily wastewater is the leading cause of water and environmental pollution, but conventional treatments suffer from complexity and low efficiency, and explicitly deal with oil-in-water emulsions. Polyvinylidene fluoride (PVDF) membranes have shown immense potential for separation applications; however, these membranes rapidly foul during the separation of oily wastewater.</p></div><div><h3>Methods</h3><p>A simple method is introduced to improve the hydrophilicity of PVDF membranes by decorating their surfaces with acrylic acid-modified nano-silica (NS) nanoparticles, whose surface stability is achieved by crosslinking them with polyvinyl alcohol (PVA). Three distinct oils were employed in this study for oil–water emulsion analysis: vegetable oil, diesel oil, and petroleum ether oil. The antifouling abilities and characterization were elucidated using advanced analytical techniques.</p></div><div><h3>Significant findings</h3><p>The membrane surface became hydrophilic, and the water contact angle reduced from 64 ± 1.45^o to 24.3 ± 1.75^o. The NS-PVA-PVDF membrane exhibited the oleophobic behavior underwater, with an underwater oil contact angle of 147.6 ± 2.65^o. Under optimized conditions, the NS-PVA-PVDF membranes have shown excellent rejection efficiency for different oil-in-water emulsions, including vegetable oil (99.01± 0.64 %), diesel oil (94.61± 0.26 %), and petroleum ether oil-in-water (84.53 ± 0.85 %) emulsions. For a membrane with a 1:3 ratio of PVA to NS particles, organic foulants like humic acid and dye elucidated better performance with 94.79 ± 1.11 and 92.79 ± 1.41 % removal, respectively, along with the flux recovery ratio of 0.96 and 0.92 for humic acid and dye filtration with irreversible fouling of 0.03 and 0.08, respectively. However, the long-term analysis of the optimum membranes showed an overall stable rejection efficiency of &gt;95 % compared with the pristine membrane. The specific rejection efficiency varied for oil emulsion (44.67–50.14 %), humic acid (59.55–67.75 %), and for dye filtration (61.52–73.5 %). These results verify the potential of the modified NS-PVA-PVDF membrane for oil–water separation for practical applications.</p></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":null,"pages":null},"PeriodicalIF":5.5,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141484216","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":"Nanomaterials to prevent progression of glioblastoma multiforme from diabetes mellitus","authors":"Yung-Chih Kuo ,&nbsp;Sourav De","doi":"10.1016/j.jtice.2024.105637","DOIUrl":"https://doi.org/10.1016/j.jtice.2024.105637","url":null,"abstract":"<div><h3>Background</h3><p>Glioblastoma multiforme (GBM), the most prevalent and deadly tumor in the central nervous system, posed a formidable challenge to healthcare. The prognosis revealed a varied and aggressive characters of malignancy to exacerbate GBM illness with comorbidities like diabetes mellitus (DM) for standard therapy. In addition, the differentiation of cancer stem cells and the blood-brain barrier (BBB) incited the major weakness of radiation and chemotherapy for GBM.</p></div><div><h3>Methods</h3><p>With the understanding that DM promoted GBM pathogenesis through mechanisms, such as inflammatory and immune responses, our research aimed to address this complex interplay through innovative nanotechnology. Leveraging the unique properties of biomaterials, including the ability to penetrate the BBB and to selectively conjugate tumor cells, we hypothesized that nanotherapeutics could construct a promising avenue for intervention of GBM with DM.</p></div><div><h3>Significant findings</h3><p>Nanomaterial-mediated release of chemotherapeutics surpassed the limitations of conventional preparation for GBM treatment, improved pharmacokinetics, and reduced systemic toxicity with better safety in GBM patients with DM. The strategy to retard GBM propagation focused on targeted delivery of pharmacotherapeutic agents across the BBB with nanoparticles, peptides and monoclonal antibodies. Moreover, type 2 diabetes mellitus (T2DM) was treated with a variety of modalities. T2DM patients must receive strict antidiabetic medication when diet and exercise failed to control hyperglycemia. The main drawbacks of T2DM treatment were fast release and inadequate absorption of the medicine via oral administration, and an increase in the frequency of dose was required. Epidemiologic evidence indicated that GBM was associated with T2DM and with diabetes risk factors. Consensus of biomedical experts suggested the connection of GBM incidence to T2DM, including common pathologic factors in T2DM and GBM, influence of diabetes treatment on GBM risk, and possible biologic links between T2DM and GBM. To enhance bioactivity, biosafety and solubility, prolong release, and boost BBB permeability, biomaterial drug delivery system attracted strong attentions. Through investigating a series of <em>in vitro</em> and <em>in vivo</em> models, this study featured the panorama of recently developed nanocarriers to mitigate GBM evolution in diabetic population with minimized systemic side effects. We also evaluated the up-to-date studies, and emphasized the remained problems related to nano-preparation in clinical trials for GBM therapy.</p></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":null,"pages":null},"PeriodicalIF":5.5,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141484289","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":"Experimental and modeling study of isothermal VLE properties of the supercritical C3H8 + benzylamine mixture","authors":"Ilnar Sh. Khabriev ,&nbsp;Vener F. Khairutdinov ,&nbsp;Talgat R. Akhmetzyanov ,&nbsp;Ilya Polishuk ,&nbsp;Ilmutdin M. Abdulagatov","doi":"10.1016/j.jtice.2024.105624","DOIUrl":"https://doi.org/10.1016/j.jtice.2024.105624","url":null,"abstract":"<div><h3>Backgrounds</h3><p>For the design and development of a method utilizing SC C₃H₈ for the chemical synthesis like the production of active pharma ingredients (pharmaceutical applications) and crop protection agents, it is essential to understand the solubility and other properties of benzylamine as an industrial important compound in the SC C₃H₈.</p></div><div><h3>Methods</h3><p>A high-temperature and high-pressure optical cell has been used to measure the phase equilibrium properties (<em>PTxy</em>) of the binary SC C₃H₈ + benzylamine mixture. The experimental and modeling studies of the isothermal VLE properties (solubility, <em>PTxy</em> relationship) of benzylamine in the supercritical (SC) C₃H₈ along the four selected constant temperatures of (393.15, 413.15, 433.15, and 473.15) K over the pressure range from (0.9 to 9.5) MPa have been performed in the present work.</p></div><div><h3>Significant Findings</h3><p>It was found the Perturbed-Chain Statistical Association Fluid Theory (PC-SAFT) is less accurate than its Critical Point-based revision (CP-PC-SAFT) in predicting the new VLE data in the C₃H₈ + benzylamine binary system with <em>k</em>₁₂ = 0. Both models substantially deviate from the bubble point data at pressures below 2 MPa.</p></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":null,"pages":null},"PeriodicalIF":5.5,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141484291","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":"Improving separation of sphalerite and galena by surface oxidation behavior regulation using calcium lentisulfonate as depressant","authors":"Linquan Dai ,&nbsp;Bo Feng ,&nbsp;Yutao Guo","doi":"10.1016/j.jtice.2024.105633","DOIUrl":"https://doi.org/10.1016/j.jtice.2024.105633","url":null,"abstract":"<div><h3>Background</h3><p>Sphalerite and galena often exist in mixed form and are difficult to separate effectively. The effect of surface oxidation behavior regulation on the depression of calcium lentisulfonate (CLS) was studied in galena and sphalerite.</p></div><div><h3>Methods</h3><p>Flotation experiment, contact angle experiment, X-ray photoelectron spectroscopy (XPS) analysis and microcalorimetric experiment were used to study the effect and mechanism of modulation of surface oxidation behaviour on CLS on the depression of galena flotation.</p></div><div><h3>Significant findings</h3><p>The results show that CLS can depress both galena and sphalerite. The oxidizing agent H₂O₂ oxidizes galena significantly faster than sphalerite. The treatment with H₂O₂ induces the formation of more oxidation products, such as PbSO_4, on the surface of galena, enhances the adsorption of CLS and makes the surface of galena hydrophilic, thus reducing the recovery of galena in the flotation process. On the other hand, the treatment of the activator ethylenediaminetetraacetic acid (EDTA) reduces the amount of oxidation products ZnSO₄ on the sphalerite surface, and CLS loses the active site that can be adsorbed on the galena surface, making the galena surface hydrophilic. In view of the huge hydrophobicity difference between sphalerite and galena, flotation separation is achieved.</p></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":null,"pages":null},"PeriodicalIF":5.5,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141484290","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":"Thermophysical properties of lidocaine:thymol or l-menthol eutectic mixtures","authors":"María Molero-Sangüesa ,&nbsp;Isabel Jiménez-Omeñaca ,&nbsp;Fernando Bergua ,&nbsp;Héctor Artigas ,&nbsp;Carlos Lafuente ,&nbsp;Manuela Artal","doi":"10.1016/j.jtice.2024.105631","DOIUrl":"https://doi.org/10.1016/j.jtice.2024.105631","url":null,"abstract":"<div><h3>Backgrounds</h3><p>A key objective of green chemistry is to obtain a broad database of thermophysical properties of liquid mixtures. Thus, the replacement of conventional solvents with ecological ones will be facilitated.</p></div><div><h3>Methods</h3><p>Herein, two eutectic systems with therapeutic properties are characterized. They are binary mixtures of lidocaine and thymol or l-menthol. Properties as solid-liquid equilibrium, density, speed of sound, refractive index, isobaric molar heat capacity, surface tension, and viscosity were determined at 0.1 MPa and several temperatures. From them, others derivatives were calculated. In addition, the phase diagram was correlated with NRTL model and the density and isobaric molar heat capacity were modelled with PC-SAFT equation of state.</p></div><div><h3>Significant findings</h3><p>Although the mixtures with l-menthol were almost ideal, a complex diagram owing the presence of stable and metastable phases. For these mixtures, the values of all measured properties were lower than those with thymol. Results indicated that PC-SAFT can be used to predict the thermodynamic behaviour of both systems in any working condition.</p></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":null,"pages":null},"PeriodicalIF":5.5,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S187610702400289X/pdfft?md5=0607d5c48afb71e7d6540250da60d3f3&pid=1-s2.0-S187610702400289X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141444584","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":"Agro-waste derived sulfonated biochar material as a sustainable heterogeneous catalyst for conversion of fructose to 5-hydroxymethylfurfural","authors":"Sudem Borgayary ,&nbsp;Dulu Brahma ,&nbsp;Riu Riu Wary ,&nbsp;Anamika Baishya ,&nbsp;Samuel Lalthazuala Rokhum ,&nbsp;Pranjal Kalita","doi":"10.1016/j.jtice.2024.105632","DOIUrl":"https://doi.org/10.1016/j.jtice.2024.105632","url":null,"abstract":"<div><h3>Background</h3><p>Development of biomass derived solid acid catalysts has the advantage to conform the green chemistry protocol for production of 5-hydroxymethylfurfural (HMF) by dehydration of fructose.</p></div><div><h3>Method</h3><p>We have reported waste cashew nut shell produced char as a biochar to prepare sulfonated biochar (SBC) catalyst by incorporating –SO₃H group through treatment of concentrated sulfuric acid.</p></div><div><h3>Significant findings</h3><p>Different methods of characterization including XRD, FT-IR, XPS, FESEM-EDS, TEM, TPD and BET analysis, were used to study the structure, morphology, chemical compositions, acidity and porosity of the produced SBC catalysts. The mesoporous nature of the material was confirmed by the powder X-ray diffraction patterns (PXRD), type IV isotherm (BET), and flakes-like structure was observed in TEM analysis. The catalyst showed high yield of HMF (92%) under optimum conditions of 120 °C in 60 min under biphasic solvent mixture of water and toluene (1:2). High yield could be explained by high acid strength of catalyst as observed by NH₃-TPD analysis. Leaching test by Sheldon's method and recyclability experiment proved the need and heterogeneity of the present catalyst.</p></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":null,"pages":null},"PeriodicalIF":5.5,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141444442","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":"Reliable identification based intelligent PID tuning for long-period process control under different working conditions","authors":"Jianqiao Zhou,&nbsp;Zhu Wang,&nbsp;Xionglin Luo","doi":"10.1016/j.jtice.2024.105630","DOIUrl":"https://doi.org/10.1016/j.jtice.2024.105630","url":null,"abstract":"<div><h3>Background</h3><p>Chemical process models change frequently with operating conditions. However, the industry mostly adopts an off-line calibration and online fixed value commissioning scheme, which can be difficult to maintain control quality. Therefore, a long-cycle online intelligent PID controller calibration scheme is necessary.</p></div><div><h3>Methods</h3><p>Firstly, a high-order linear dynamic model is used as the identification model, and online recursive identification technology is utilized. Secondly, a comprehensive performance index is selected to ensure both stability and rapidity of dynamic transitions. Finally, the slow rate updated PID parameters are obtained during the process control, and the Levy Memory Particle Swarm Optimization (LMPSO) search is applied to harvest the optimal solution.</p></div><div><h3>Significant findings</h3><p>This paper has presented an intelligent PID tuning method based on reliable identification technology. The main contributions include: (i) By using Lyapunov theory, the boundedness of identification error using the proposed algorithm is guaranteed; (ii) The LMPSO algorithm is proposed to enhance global search capability and search efficiency; (iii) A novel optimization scheme is proposed for a full-process online closed-loop intelligent PID controller. The scheme aims to improve the industrial controller's performance without altering its structure.</p></div>","PeriodicalId":381,"journal":{"name":"Journal of the Taiwan Institute of Chemical Engineers","volume":null,"pages":null},"PeriodicalIF":5.5,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141438747","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}