Chemical Engineering Research & Design最新文献_第4页

Removal of Cr(Ⅵ) by continuous flow electrocoagulation reactor at controlled and uncontrolled initial pH conditions

IF 3.7 3区工程技术

Chemical Engineering Research & Design Pub Date : 2025-02-01 DOI: 10.1016/j.cherd.2025.01.015

Nawid Ahmad Akhtar , Mehmet Kobya , Alireza Khataee

{"title":"Removal of Cr(Ⅵ) by continuous flow electrocoagulation reactor at controlled and uncontrolled initial pH conditions","authors":"Nawid Ahmad Akhtar , Mehmet Kobya , Alireza Khataee","doi":"10.1016/j.cherd.2025.01.015","DOIUrl":"10.1016/j.cherd.2025.01.015","url":null,"abstract":"<div><div>In this work, we studied the impact of various operating parameters, including reaction time (t), applied current (i), charge loading (q), initial pH, initial Cr concentration (mg/L), and wastewater flow rate (Q), on the removal of Cr (VI) from synthetic tap water. The investigation is conducted using Fe scrap anodes in a continuous flow electrocoagulation process (CFEC) with both controlled and uncontrolled initial pH conditions. Cr(VI) removal efficiency under controlled pH conditions was found to be 100 % under optimum conditions (t = 6 min, i = 1 A, pH = 2.5, q = 6.67 C/L or 4.145 F/m<sup>3</sup>, Q = 15 mL/min, and C<sub>i</sub> = 90 mg/L). In the case of uncontrolled pH conditions at optimum conditions (t = 12 min, i = 1 A, pH = 2.5, q = 13.33 C/L or 8.29 F/m<sup>3</sup>, Q = 15 mL/min, and C<sub>i</sub> = 90 mg/L), the Cr(VI) removal efficiency was found to be 100 %. The Cr(VI) removal capacity and the iron to chromium molar ratio at controlled pH were 775 mg Cr/g Fe and 1.198 mol/mol, and at uncontrolled pH were 387.7 mg Cr/g Fe and 2.395 mol/mol, respectively. Finally, comprehensive investigations were carried out on specific energy consumption and total operating costs. The SEM results show that the sludge particles under controlled and uncontrolled pHs are irregular, characterized by amorphous structure and wrinkled surfaces with small agglomerations.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"214 ","pages":"Pages 403-414"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101422","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

Optimizing microgrid design and operation: A decision-making framework for residential distributed energy systems in Brazil

IF 3.7 3区工程技术

Chemical Engineering Research & Design Pub Date : 2025-02-01 DOI: 10.1016/j.cherd.2024.12.033

Ana Paula Alves Amorim , Karen Valverde Pontes , Bogdan Dorneanu , Harvey Arellano-Garcia

{"title":"Optimizing microgrid design and operation: A decision-making framework for residential distributed energy systems in Brazil","authors":"Ana Paula Alves Amorim , Karen Valverde Pontes , Bogdan Dorneanu , Harvey Arellano-Garcia","doi":"10.1016/j.cherd.2024.12.033","DOIUrl":"10.1016/j.cherd.2024.12.033","url":null,"abstract":"<div><div>This paper explores the optimization of microgrid design and operation for residential distributed energy systems in Brazil, addressing the growing demand for sustainable energy in the context of climate change. A decision-making framework based on Mixed-Integer Nonlinear Programming (MINLP) is proposed to integrate distributed energy resources (DERs) such as solar, wind, and biogas. Key challenges include managing the variability of renewable resources and complying with local regulations, while also addressing gaps in literature, particularly the impact of time-dependent efficiency profiles on energy sharing within microgrids. By employing innovative analyses and clustering techniques, the research optimizes microgrid configurations, accounting for seasonal demand fluctuations and the influence of incentive policies on system feasibility. The findings reveal that incorporating a time-dependent efficiency model can reduce total costs by 45 %. This reduction underscores the importance of accurate efficiency predictions, as the model captures variations in energy generation and utilization efficiency over time, improving system optimization. Additionally, the findings reveal that a well-structured optimization model can meet 100 % of electricity and hot water demands across all scenarios, with customized incentives playing a crucial role in reducing costs and promoting sustainability.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"214 ","pages":"Pages 251-268"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101743","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}

引用次数: 0

Synthesis of silver sulfide acanthite phase nanoparticles for photothermal hybrid PSF membrane

IF 3.7 3区工程技术

Chemical Engineering Research & Design Pub Date : 2025-02-01 DOI: 10.1016/j.cherd.2025.01.011

Mubark Alshareef , Ahmed Alharbi , Sultan Ahmed , Amr Mohamed Mahmoud , Mohamed S. Fahmi , Mohamed E.A. Ali , Ahmed Shahat

{"title":"Synthesis of silver sulfide acanthite phase nanoparticles for photothermal hybrid PSF membrane","authors":"Mubark Alshareef , Ahmed Alharbi , Sultan Ahmed , Amr Mohamed Mahmoud , Mohamed S. Fahmi , Mohamed E.A. Ali , Ahmed Shahat","doi":"10.1016/j.cherd.2025.01.011","DOIUrl":"10.1016/j.cherd.2025.01.011","url":null,"abstract":"<div><div>Membrane distillation (MD) is an energy-intensive desalination technique hindered by high energy consumption. To address this limitation, we selected silver sulfide (Ag₂S) Nanoparticles (NPs) for incorporation into a polysulfone (PSF) membrane, aiming to enhance the photothermal membrane distillation (PMD) process. Ag₂S was chosen due to its unique photothermal properties, including efficient light absorption and conversion into heat, making it an ideal candidate for improving the thermal efficiency of MD membranes. The Ag₂S NPs were synthesized using the Chemical Bath Deposition (CBD) method and characterized through SEM, UV-spectroscopy, FT-IR, and EDX. The NPs were integrated into the PSF membrane at varying concentrations (0.5–2 %). The PSF/Ag₂S composite membranes demonstrated significant photothermal properties, with surface temperatures rising from 45.7°C to 52.3°C under light exposure. The water flux also improved from 5.4 L/m²h without light to 7.8 L/m²h with light in the optimal membrane containing 1.5 % Ag₂S. Additionally, contact angle (CA) measurements indicated increased hydrophobicity, while liquid entry pressure (LEP) values rose, further enhancing membrane performance. The composite membrane achieved a remarkable salt rejection rate of 99.99 %. These findings suggest that integrating Ag₂S NPs into PSF membranes significantly improves energy efficiency, water flux, and desalination performance. This makes it a promising approach for solar-driven desalination, with Ag₂S acting as an effective photothermal agent. The study underscores the potential of Ag₂S as a sustainable solution for improving MD efficiency, offering a new pathway to tackle global water scarcity.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"214 ","pages":"Pages 415-426"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101300","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

Comprehensive investigation of regeneration and performance of deactivated molecular sieves: Experimental characterization and molecular simulation analysis

IF 3.7 3区工程技术

Chemical Engineering Research & Design Pub Date : 2025-02-01 DOI: 10.1016/j.cherd.2024.12.029

Behrouz Bayati , Zahra Moafi , Alireza Arad , Catia Algieri , Mohsen Mansouri

引用次数: 0

CFD simulation of isolated bubbles rising in Newtonian or non-Newtonian fluids inside a thin-gap bubble column

IF 3.7 3区工程技术

Chemical Engineering Research & Design Pub Date : 2025-02-01 DOI: 10.1016/j.cherd.2024.12.030

Sikandar Almani , Walid Blel , Emilie Gadoin , Caroline Gentric

{"title":"CFD simulation of isolated bubbles rising in Newtonian or non-Newtonian fluids inside a thin-gap bubble column","authors":"Sikandar Almani , Walid Blel , Emilie Gadoin , Caroline Gentric","doi":"10.1016/j.cherd.2024.12.030","DOIUrl":"10.1016/j.cherd.2024.12.030","url":null,"abstract":"<div><div>Hydrodynamics of the bubbling process can be complex especially in thin bubble columns, when the gap has the same order of magnitude as the bubble diameter, and with complex fluids. It is then important to understand this phenomenon either by experimental investigation through optical methods such as shadowgraphy and/or Particle Image Velocimetry (PIV) or numerically by Computational Fluid Dynamics (CFD), which, when validated, can allow numerical experimentation in situations which are expensive to implement experimentally or time consuming. In this study, three-dimensional numerical simulations of isolated bubbles rising in Newtonian (water) or non-Newtonian (CarboxyMethyl Cellulose (CMC) and Xanthan Gum (XG) solutions) liquid phases mimicking <em>Chlorella vulgaris</em> cultures at 42 g.L<sup>−1</sup> concentration inside a 4 mm gap bubble column are performed using the volume of fluid (VOF) model with the ANSYS FLUENT 17.2 code. Results are validated by comparison with shadowgraphy experiments. Bubble terminal velocity, shape, and trajectory are numerically analysed. Wall shear stress (WSS) induced by the bubble, strain rate, viscosity and flow field around the bubble are also discussed. Numerical results show similar trends as experimental ones despite slightly lower terminal velocity and aspect ratio values are observed in comparison to the experimental results. The trajectory of the bubble is non-rectilinear for water and rectilinear for non-Newtonian fluids as observed experimentally. This numerical study highlights the bubble-liquid and bubble-wall interactions that will help to understand the complex phenomena of bubble rise in non-Newtonian media/microalgae suspensions at high concentrations at the local level in thin-gap bubble columns.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"214 ","pages":"Pages 202-218"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101312","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}

引用次数: 0

Effect of enclosure design with composite/nano-enhanced/dual phase change material on melting response of latent heat storage systems

IF 3.7 3区工程技术

Chemical Engineering Research & Design Pub Date : 2025-02-01 DOI: 10.1016/j.cherd.2024.12.027

Md Tabrez Alam , Vivek Garg , Vikash Soni, Anoop K. Gupta

{"title":"Effect of enclosure design with composite/nano-enhanced/dual phase change material on melting response of latent heat storage systems","authors":"Md Tabrez Alam , Vivek Garg , Vikash Soni, Anoop K. Gupta","doi":"10.1016/j.cherd.2024.12.027","DOIUrl":"10.1016/j.cherd.2024.12.027","url":null,"abstract":"<div><div>This numerical work employs the Enthalpy-Porosity methodology to examine the melting behaviour in variously shaped enclosures (of equal area) utilized in the latent heat thermal energy storage (LHTES) units integrated with the phase change material (PCM). Systems of single PCM (n-Octadecane), dual PCM (n-Octadecane as PCM 1 and Capric acid as PCM 2), nano-enhanced PCM (n-Octadecane embedded with the multi-walled CNTs), and composite PCM (n-Octadecane embedded with Cu metal foam) have been compared under 11 distinct enclosure geometries subject to the uniform heat flux of 500 W/m<sup>2</sup>. The Prandtl numbers (<em>Pr</em>) were determined as 57.1 for liquid PCM 1 and 41.8 for liquid PCM 2. Under the studied parameters, the Grashof number (<em>Gr</em>) ranged from 0.55 × 10<sup>5</sup> to 5.03 × 10<sup>5</sup> and the Stefan number (<em>Ste</em>) valued from 0.44 to 0.76, providing key insights into the heat transfer and phase change dynamics of the system. Initial findings reveal a uniform melting rate across all the geometries dominated by the conductive heat transfer. Over time, as the natural convection overshadows conduction, the horizontal rectangular geometry exhibits the fastest melting and thus emerges as the most efficient thermal energy storage system. Notably, in the dual PCM systems, the arrangement of PCM 1 within PCM 2 (configuration-1) suppresses the melting of PCM 2 until its melting point is reached and proves to be the superior to the configuration-2 (i.e., allocation of PCM 2 within PCM 1) where the simultaneous melting of both PCMs is seen. The incorporation of both the multi-walled carbon nanotubes (MWCNTs) and copper metal foam (MF) into PCM matrix significantly boosts the thermal conductivity thereby accelerating the melting rates across all the enclosure shapes with the horizontal rectangle performing the best.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"214 ","pages":"Pages 125-143"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101414","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

Biomass fly-ash derived Li4SiO4 solid for pilot-scale CO2 capture, Part I: Modelling for a waste to capture CO2 process

IF 3.7 3区工程技术

Chemical Engineering Research & Design Pub Date : 2025-02-01 DOI: 10.1016/j.cherd.2024.12.036

Samantha A. Usas, Luis Ricardez-Sandoval

{"title":"Biomass fly-ash derived Li4SiO4 solid for pilot-scale CO2 capture, Part I: Modelling for a waste to capture CO2 process","authors":"Samantha A. Usas, Luis Ricardez-Sandoval","doi":"10.1016/j.cherd.2024.12.036","DOIUrl":"10.1016/j.cherd.2024.12.036","url":null,"abstract":"<div><div>This work presents a new modelled system of a biomass-based lithium orthosilicate solid adsorbent derived from industrial biomass fly-ash used to capture CO<sub>2</sub> from power plant flue gas emissions. The model includes pre-treatment of biomass fly-ash, the synthesis of adsorbent, which utilizes fly-ash as the silicone source and a laboratory produced lithium source, the adsorption of CO<sub>2</sub> from flue gas, and regeneration of adsorbent. The study compares the results from pre-treated and non-pre-treated biomass fly-ash, with benchmark CO<sub>2</sub> capture rates of 87 % and 89.7 %, respectively and a maximum CO<sub>2</sub> capture rate of 93.23 %. Key insights from the scenarios considered in this work show that an increased CO<sub>2</sub> flue gas composition requires higher adsorbent mass and the most effective flue gas volume to adsorbent mass ratio between 3.7–4.1; additionally, higher regeneration temperatures result in improved CO<sub>2</sub> capture while pre-treatment of fly-ash does not impact regeneration kinetics. Energy analysis show that the pre-treated fly-ash adsorbent is more efficient than the non-pretreated adsorbent but is not superior to amine-based post-combustion carbon capture. If effective heat integration were to be incorporated for the pre-treated and non-pre-treated adsorption processes, energy consumption could be reduced by 54 % and 85 % compared to amine-based capture, respectively. Cost analysis indicated that by incorporating a recycle stream for pre-treatment wastewater and altering the acid to solid ratio during pre-treatment acid wash, process costs may be reduced over 20 % making this a feasible alternative carbon capture process.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"214 ","pages":"Pages 219-233"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101416","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}

引用次数: 0

Structural and property analysis of different components in coal liquefaction residue raffinate based on density separation

IF 3.7 3区工程技术

Chemical Engineering Research & Design Pub Date : 2025-02-01 DOI: 10.1016/j.cherd.2024.12.032

Wenwen Dai , Xiaoshan Pei , Huijun Chen , Ruizhi Dou , Changfu Feng , Qingyu Liu , Panpan Fan , Weiren Bao , Jiancheng Wang , Minqiang Fan , Lianping Dong

{"title":"Structural and property analysis of different components in coal liquefaction residue raffinate based on density separation","authors":"Wenwen Dai , Xiaoshan Pei , Huijun Chen , Ruizhi Dou , Changfu Feng , Qingyu Liu , Panpan Fan , Weiren Bao , Jiancheng Wang , Minqiang Fan , Lianping Dong","doi":"10.1016/j.cherd.2024.12.032","DOIUrl":"10.1016/j.cherd.2024.12.032","url":null,"abstract":"<div><div>Given China's coal-centric energy structure, direct coal liquefaction technology assumes a pivotal role in addressing oil shortages and ensuring stable energy supplies. Efficient handling of copious residues from liquefaction, alongside environmental concerns, poses a major challenge</div><div>the technology of direct coal liquefaction is crucial for alleviating oil shortages and ensuring energy security. The effective utilization of the vast amount of residual sludge generated from re-utilization of coke oven residues and the issues of their environmental impact are becoming key challenges.</div><div>This study applies float-sink separation to stratify coal liquefaction residue raffinate into six density distributions, employing advanced analytical techniques (SEM-EDS, XRD, Raman, elemental analysis, XRF, XPS, TGA) to probe the structures and properties across these densities. Findings reveal a predominately fine particle size with a median diameter (D50) of 12.1μm, peaking at a density of 1.6–1.8 g/cm³ . Increasing density correlates with heightened ash and sulfur content, diminishing carbon content, which reduces combustibility, decelerates burning velocity, and lowers weight loss. Enhanced crystallinity of SiO<sub>2</sub> and CaCO<sub>3</sub> is noted. Samples below 2.0 g/cm³ exhibit higher carbon content and superior graphitization, contrasting with higher densities revealing greater disorder. Changes in sulfur's chemical bonding states across densities highlight transformations among pyrite, organic sulfur, and sulfates. Rising density corresponds to declining combustibility and degraded combustion performance. These outcomes furnish a foundational theory for the resource recovery and exploitation of coal liquefaction residue raffinate.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"214 ","pages":"Pages 144-153"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101426","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

A preliminary study of thermal plasma gasification of an automobile waste under CO2 atmosphere for high calorific value syngas production

IF 3.7 3区工程技术

Chemical Engineering Research & Design Pub Date : 2025-02-01 DOI: 10.1016/j.cherd.2025.01.013

Uttkarsh Goyal, Roni Mallick, Prabu Vairakannu

{"title":"A preliminary study of thermal plasma gasification of an automobile waste under CO2 atmosphere for high calorific value syngas production","authors":"Uttkarsh Goyal, Roni Mallick, Prabu Vairakannu","doi":"10.1016/j.cherd.2025.01.013","DOIUrl":"10.1016/j.cherd.2025.01.013","url":null,"abstract":"<div><div>Plastics in automobile waste pose major ecological issues since they are non-biodegradable and expensive to recycle, but can potentially be used to recover energy due to their high heating value. Therefore, the current study performs thermal plasma gasification of a car dashboard (CDB) in CO<sub>2</sub> atmosphere to convert into a tar-free syngas. CO<sub>2</sub> is chosen due to its environmental attention and ability to break the aromatic hydrocarbons by oxygen-free radicals formed under plasma. To measure the process yield, the influence of plasma power, CDB and CO<sub>2</sub> plasma gas flow rate is investigated. A maximum concentration of H<sub>2</sub> of 49.09 vol% and CO of 35.87 vol% are obtained at the highest plasma power of 1.12 kW. However, the maximum syngas yield (84.11 %), LHV (19.22 MJ/m<sup>3</sup>) and cold gas efficiency (67.70 %) are found for the optimum conditions of plasma power of 0.75 kW. The residue with high ash content (13 %) and LHV of 1.28 MJ/kg is obtained after plasma gasification as a by-product. The metals in ash such as Si, Ni, Al, etc., if recovered has valuable applications in the preparation of catalysts, pigments, glass making, etc.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"214 ","pages":"Pages 369-376"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101418","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 of an intelligent system for modeling and optimization of perovskite-type catalysts for catalytic reduction of NO with CO

IF 3.7 3区工程技术

Chemical Engineering Research & Design Pub Date : 2025-02-01 DOI: 10.1016/j.cherd.2024.12.025

Ali Tarjomannejad , Parvaneh Nakhostin Panahi , Ali Farzi , Aligholi Niaei

{"title":"Design of an intelligent system for modeling and optimization of perovskite-type catalysts for catalytic reduction of NO with CO","authors":"Ali Tarjomannejad , Parvaneh Nakhostin Panahi , Ali Farzi , Aligholi Niaei","doi":"10.1016/j.cherd.2024.12.025","DOIUrl":"10.1016/j.cherd.2024.12.025","url":null,"abstract":"<div><div>In this paper, a hybrid artificial neural network-genetic algorithm (ANN-GA) method was applied to design and optimize a perovskite catalyst for the reduction of NO with CO. A series of perovskite-type oxides with the general formula of La<sub>1-x</sub>Sr<sub>x</sub>(Cu<sub>1-y</sub>Mn<sub>y</sub>)<sub>1-α</sub>Pd<sub>α</sub>O<sub>3</sub> were investigated. Catalysts were synthesized via the sol-gel auto-combustion method. The effects of four design parameters (x, y, α, and calcination temperature) and reaction temperature as an operational variable on NO conversion were investigated by modeling the experimental data obtained in the experimental design. Based on the results, the optimum neural network architecture predicted NO conversion data with an acceptable level of correctness. The optimum neural network architecture was used as a capability function for the genetic algorithm to find the optimal catalyst. For catalyst optimization, the Pd mole fraction was set to 0.02. The values of other parameters in the optimum catalyst were as follows: Sr mole fraction of 0.175, Mn mole fraction of 0.596, and calcination temperature of 674.89°C. To investigate the structure, morphology, specific surface area, and reducibility, the catalysts were characterized by XRD, BET, H<sub>2</sub>-TPR, XPS, and SEM.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"214 ","pages":"Pages 54-64"},"PeriodicalIF":3.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143101420","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