Canadian Journal of Chemical Engineering最新文献

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IF 2.2 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2026-10-05 DOI: 10.1002/cjce.70266

引用次数: 0

Box–Behnken optimization and ANN-ANFIS integrated modelling for transesterification using thermally activated basic oxygen furnace slag catalyst Box-Behnken优化和ANN-ANFIS集成模型用于热活化碱性氧炉渣催化剂的酯交换反应

IF 2.2 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2026-10-05 Epub Date: 2026-04-14 DOI: 10.1002/cjce.70402

Johra S. Ali, Hillary L. Rutto

{"title":"Box–Behnken optimization and ANN-ANFIS integrated modelling for transesterification using thermally activated basic oxygen furnace slag catalyst","authors":"Johra S. Ali, Hillary L. Rutto","doi":"10.1002/cjce.70402","DOIUrl":"https://doi.org/10.1002/cjce.70402","url":null,"abstract":"Global energy demand and environmental concerns have intensified the search for renewable and sustainable energy sources. This study thus, focuses on optimizing the transesterification process of waste cooking oil (WCO) using thermally activated basic oxygen furnace slag catalyst calcined at 850°C (BOF 850). The optimization and modelling were conducted using Box–Behnken design (BBD), artificial neural networks (ANN), and adaptive neuro-fuzzy inference system (ANFIS). Among these, ANN produced the most accurate model with the least root mean square error (RMSE) of 0.0985 and a coefficient of determination (R2) value of 0.9710, outperforming ANFIS (RMSE: 0.1780, R2: 0.9604) and BBD (RMSE: 0.4973, R2: 0.98230). While ANFIS has historically demonstrated strong predictive power in transesterification reactions, its performance in this study was limited by the small dataset (17 data points), highlighting its sensitivity to data size. The optimal conditions determined via BBD were a methanol-to-oil ratio of 23.5:1, a catalyst amount of 20.4%, and a reaction time of 10.3 h. Experimental validation at these conditions resulted in a biodiesel yield of 91.73%. Analysis of variance (ANOVA) showed that catalyst amount had the highest statistical significance (F-value: 58.08, p-value: 0.0001), while the methanol-to-oil ratio and reaction time exhibited the strongest interaction effects (F-value: 42.84, p-value: 0.0003). Gas chromatography–mass spectrometry (GC–MS) analysis of the produced biodiesel revealed a composition of 52.7% saturated and 46.1% unsaturated fatty acids, influencing the fuel properties. The study thus shows that ANN can effectively model transesterification of WCO using BOF 850 catalyst.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"104 11","pages":"5991-6006"},"PeriodicalIF":2.2,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cjce.70402","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Special edition of the 75th Canadian Chemical Engineering Conference 第75届加拿大化学工程会议特别版

IF 2.2 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2026-10-05 Epub Date: 2026-08-18 DOI: 10.1002/cjce.70557

Nicolas Abatzoglou

引用次数: 0

Experimental methods in chemical engineering: Cyclic voltammetry—CV 化学工程中的实验方法：循环伏安法

IF 2.2 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2026-10-05 Epub Date: 2026-08-09 DOI: 10.1002/cjce.70519

Yasser Matos-Peralta, Christopher Panaritis, JoElen Hagler, Clara Santato, Gregory S. Patience

{"title":"Experimental methods in chemical engineering: Cyclic voltammetry—CV","authors":"Yasser Matos-Peralta, Christopher Panaritis, JoElen Hagler, Clara Santato, Gregory S. Patience","doi":"10.1002/cjce.70519","DOIUrl":"https://doi.org/10.1002/cjce.70519","url":null,"abstract":"Cyclic voltammetry (CV) is a foundational electroanalytical technique for investigating redox behaviour and evaluating material performance across fields such as molecular electrochemistry, electrocatalysis, sensing, and energy storage. Despite its widespread use, a gap remains between formal electrochemical theory and the practical data analysis required for chemical engineering applications. This review addresses that gap by treating the voltammogram as a multidimensional source of mechanistic and quantitative information rather than as a purely qualitative profile. A theoretical framework is presented for CV, including the governing principles of interfacial electron-transfer kinetics, mass-transport regimes, and the distinction between capacitive currents and faradaic processes. To support reliable and reproducible measurements, practical guidance is provided for controlling key experimental variables, including uncompensated resistance, supporting electrolyte effects, scan rate, and potential window selection. Beyond basic peak identification, methods for extracting and interpreting quantitative descriptors are also discussed, including formal and onset potentials, apparent rate constants, electrochemically active surface area, transport regimes, apparent Michaelis–Menten parameters, and capacitance- or capacity-based metrics. Particular attention is given to major sources of uncertainty, including non-ideal mass transport, film heterogeneity, and fouling, which can distort mechanistic interpretation in complex engineering systems. Recent integration of CV with operando mass spectrometry, spectroscopy, and nanoscale imaging further illustrates how the technique has evolved into a coordinated platform for mechanistic and process-level analysis in electrochemical engineering. In doing so, the review highlights how CV can support the rational design of robust and scalable electrochemical technologies.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"104 11","pages":"5776-5827"},"PeriodicalIF":2.2,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cjce.70519","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Random forest regression for catalyst performance prediction and validation of tri-reforming of methane (TRM) 基于随机森林回归的甲烷三重整催化剂性能预测与验证

IF 2.2 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2026-10-05 Epub Date: 2025-12-15 DOI: 10.1002/cjce.70215

Paulo A. L. de Souza, Raja Muhammad Afzal, Felipe Gomes Camacho, Nader Mahinpey

{"title":"Random forest regression for catalyst performance prediction and validation of tri-reforming of methane (TRM)","authors":"Paulo A. L. de Souza, Raja Muhammad Afzal, Felipe Gomes Camacho, Nader Mahinpey","doi":"10.1002/cjce.70215","DOIUrl":"https://doi.org/10.1002/cjce.70215","url":null,"abstract":"Carbon dioxide-reduced hydrogen can be synthesized through various methods such as dry-reforming (DRM), steam reforming (SMR), and partial oxidation (POX). Tri-reforming of methane (TRM) is a promising technology which combines all the above-mentioned processes for the simultaneous production of hydrogen and syngas with high energy efficiency. However, catalyst design for TRM is challenging due to complex reaction kinetics and the need for catalyst. This way, the use of data-driven models, such as random forest models (RFs), can be used to assist in the search of new material compositions, leading to a faster scale-up process. In this study, a comprehensive database was built, encompassing approximately 6000 data points and 6 input parameters collected from literature published between 2013 and 2022. Three different random forest models were developed and demonstrated to accurately predict the methane conversion using temperature, metal wt.%, and feed ratios as input features, being later incorporated into a singular model based of the reaction kinetics of TRM. All models achieved high accuracy, with R2 values exceeding 93%. The reaction temperature input parameter, ranging from 623 to 1173 K, was identified as having the greatest relative importance (60.7%), significantly influencing the changes in CH4 conversion.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"104 11","pages":"5875-5891"},"PeriodicalIF":2.2,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cjce.70215","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Comparative assessment of volume-of-fluid (VOF) multiphase solvers for viscoplastic flow over grooved patterned surfaces 槽状图案表面粘塑性流动的流体体积（VOF）多相求解器的比较评估

IF 2.2 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2026-10-05 Epub Date: 2026-04-20 DOI: 10.1002/cjce.70413

Amir Joulaei, Alice Villette, Seyed Mohammad Taghavi

{"title":"Comparative assessment of volume-of-fluid (VOF) multiphase solvers for viscoplastic flow over grooved patterned surfaces","authors":"Amir Joulaei, Alice Villette, Seyed Mohammad Taghavi","doi":"10.1002/cjce.70413","DOIUrl":"https://doi.org/10.1002/cjce.70413","url":null,"abstract":"Accurately simulating multiphase flows at low capillary numbers remains challenging due to spurious currents and interface discretization errors. We present a systematic comparison of four volume-of-fluid (VOF) solvers within the OpenFOAM framework for pressure-driven Poiseuille–Bingham flow over grooved surfaces: interFoam with classical continuum, smoothed continuum, sharp surface force formulations, and the multiphaseInterFoam solver. Solver performance is evaluated under capillarity-dominated conditions over a wide range of Bingham and Reynolds numbers and for both air- and oil-filled grooves. Among all cases, multiphaseInterFoam consistently produces the lowest spurious currents. Its predictions are validated against experimental interface profiles and phase-field simulations, demonstrating excellent agreement in both interface morphology and axial velocity. The validated solver is then used to examine the influence of geometric and viscoplastic parameters on flow over air-filled textures. The results show that the velocity field within the groove is strongly affected by the Bingham number, particularly at high Reynolds numbers. The local slip length attains a maximum at the groove centre and decreases smoothly toward the edges, with its distribution governed by the groove aspect ratio, while the effective slip length increases monotonically with Bingham number, slip area fraction, and groove aspect ratio.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"104 11","pages":"5892-5909"},"PeriodicalIF":2.2,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cjce.70413","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Study on the degradation of xylose residue in hydrothermal treatment process 水热处理木糖渣的降解研究

IF 2.2 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2026-10-05 Epub Date: 2026-04-20 DOI: 10.1002/cjce.70396

Shuaifei Zhang, Jiansheng Lv, Xuanke Xie, Junying Chen, Huixing Li, Hongsheng Chen, Xiaoling Zhao, Xiaoyang Zheng

{"title":"Study on the degradation of xylose residue in hydrothermal treatment process","authors":"Shuaifei Zhang, Jiansheng Lv, Xuanke Xie, Junying Chen, Huixing Li, Hongsheng Chen, Xiaoling Zhao, Xiaoyang Zheng","doi":"10.1002/cjce.70396","DOIUrl":"https://doi.org/10.1002/cjce.70396","url":null,"abstract":"Degradation of xylose residue (XR) was carried out in hydrothermal treatment process (HTP) at various temperatures, residence times, solid–liquid ratios, and particle sizes. The properties of liquid, gas, and solid (hydrochar) products were investigated in anticipation of obtaining the process conditions for the preparation of optimum-performance hydrochar. It was found that temperature was the most important factor affecting hydrothermal treatment process. For hydrochar, as the temperature rose from 200 to 320°C, the mass yield (MY), volatile matter (VM), and blackness value decreased, but the fixed carbon (FC) content and high heating value (HHV) increased. Compared with XR, the VM of hydrochar decreased from 87.97% to 30.3%, FC content increased from 8.23% to 68.91%, and HHV increased from 17.88 MJ/kg to 28.62 MJ/kg. The best data obtained from hydrochars were the iodine value, 89.03 g/kg, and DBP value, 190 cm3/g, which were quite close to that of the commercial carbon black. The gas chromatography coupled to a mass spectrometry (GC–MS) characterization indicated that ketones, phenols, organic acids, and furans were the main components in bio-oil (the maximum yield of 19.22%). The contents of ketones and phenols increased with the temperature, and the highest relative contents were up to 29.54% and 32.84%, respectively. The gas and loss product yield reached its highest, 61.31%, at 320°C. CO2 dominated in gas-phase fractions, accounting for about 90%. H2, CO, and CH4 were clean and efficient energy sources, but were too few. This study was expected to transform XR into high value-added products and provided new ideas for the resource utilization of waste.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"104 11","pages":"6022-6036"},"PeriodicalIF":2.2,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Study on Ce modified 8Fe6Cr/AC catalyst low-temperature SCR performance on alkali metal poisoning Ce改性8Fe6Cr/AC催化剂对碱金属中毒的低温SCR性能研究

IF 2.2 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2026-10-05 Epub Date: 2026-05-03 DOI: 10.1002/cjce.70414

Jun Liu, Shuangyan Wu, Tingting Ge, Yunlan Sun, Baozhong Zhu

{"title":"Study on Ce modified 8Fe6Cr/AC catalyst low-temperature SCR performance on alkali metal poisoning","authors":"Jun Liu, Shuangyan Wu, Tingting Ge, Yunlan Sun, Baozhong Zhu","doi":"10.1002/cjce.70414","DOIUrl":"https://doi.org/10.1002/cjce.70414","url":null,"abstract":"To achieve efficient low-temperature denitrification, a series of Ce-Cr-Fe/AC catalysts and alkali-metal-poisoned catalysts were prepared by an impregnation method using activated carbon as the support. The effects of different alkali metal (K or Na) loadings and Ce concentrations on the alkali resistance of the catalysts were systematically investigated. When the K or Na loading reached 1%, the catalytic activity decreased by more than 20% within the temperature range of 120–240°C. The introduction of Ce effectively alleviated the deactivation caused by alkali metal poisoning. To elucidate the mechanisms underlying the effects of alkali poisoning and Ce modification on NOx conversion, the Ce-1K/Fresh and Ce-1Na/Fresh (Fresh = 8Fe6Cr/AC) catalysts were characterized by X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) surface area analysis, H2 temperature-programmed reduction (H2-TPR), NH3 temperature-programmed desorption (NH3-TPD), X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared spectroscopy (FTIR). The results revealed that the addition of K or Na decreased the number of surface acid sites, reducibility, surface area, and the contents of Fe3+, Cr3+, and surface active oxygen (Oβ). However, Ce doping effectively suppressed these adverse effects. Furthermore, the 8Ce/Fresh catalyst exhibited excellent resistance to H2O and SO2 during a 400 min stability test, demonstrating its superior durability and potential for practical applications under complex flue gas conditions.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"104 11","pages":"6050-6061"},"PeriodicalIF":2.2,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Clathrate hydrate crystallization 包合物水合结晶

IF 2.2 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2026-10-05 Epub Date: 2026-04-28 DOI: 10.1002/cjce.70411

Peter Englezos

{"title":"Clathrate hydrate crystallization","authors":"Peter Englezos","doi":"10.1002/cjce.70411","DOIUrl":"https://doi.org/10.1002/cjce.70411","url":null,"abstract":"Clathrate hydrate crystallization has been an area of interest to chemical engineers from the point of view of crystal structure, thermophysical properties, phase equilibria, kinetics, industrial applications, and environmental (climate change) implications. There is ongoing scientific and practical interest in this multidisciplinary field. This manuscript aims to present the status of the subject from the chemical engineering point of view by focusing on equilibrium, kinetics, and applications including the relationship between clathrate hydrates and climate change. Only canonical clathrates of structure I, II, and H are discussed. The evolution of the field since the early 1800s and the major milestones are discussed in a historical perspective. Hydrate crystallization remains a problem in the oil and gas industry and at the same time offers the opportunity for development of technologies such as seawater desalination, natural gas storage and transport, and CO2 sequestration, as well as novel technologies such as carbonated solid foods and separation of heavy water (D2O) from light water (H2O). In addition, the link to climate change is highlighted and an effort is made to emphasize areas of research that in our opinion deserve further attention.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"104 11","pages":"5931-5953"},"PeriodicalIF":2.2,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cjce.70411","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

A novel bubbling fluid bed reactor for the autothermal pyrolysis of waste plastics 一种用于废塑料自热热解的新型鼓泡流化床反应器

IF 2.2 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2026-10-05 Epub Date: 2026-06-04 DOI: 10.1002/cjce.70479

Khadija Olivia Ogoula Igouwe, Tchini Sévérin Tanoh, Jasmin Blanchard, Inès Esma Achouri, Nicolas Abatzoglou

{"title":"A novel bubbling fluid bed reactor for the autothermal pyrolysis of waste plastics","authors":"Khadija Olivia Ogoula Igouwe, Tchini Sévérin Tanoh, Jasmin Blanchard, Inès Esma Achouri, Nicolas Abatzoglou","doi":"10.1002/cjce.70479","DOIUrl":"https://doi.org/10.1002/cjce.70479","url":null,"abstract":"A new pilot-scale fluidized bed reactor operated under continuous conditions was developed and tested for the thermal pyrolysis of high-density polyethylene (HDPE). The study focused on assessing the reliability and operability of the system under different operating conditions (400–550°C), while monitoring mass and energy balances, product distribution, and volatile composition. The reactor relies on a dual-zone architecture, combining a lower combustion zone and an upper pyrolysis zone, allowing non-oxidative pyrolysis while heat is generated internally. Stable operation was achieved without bed agglomeration, supporting the suitability of the design for continuous operation at the kilogram-per-hour scale. In addition, the condensation-recycling loop enabled sustained cooling while reducing freshwater demand. Experiments conducted at 400, 450, and 550°C yielded up to 69.8% by weight of liquid products (maximum at 450°C), up to 38.9% by weight of non-condensable gases (maximum at 550°C), and less than 0.3% by weight of charcoal, which corresponds to the typical behaviour of HDPE pyrolysis. The chemical energy stored in the gas fraction systematically exceeded the auxiliary propane input, highlighting the potential for autothermal operation through gas recycling. These results demonstrate the feasibility and robustness of the developed reactor, while highlighting two key advantages: a compact reactor design and the potential for energy self-sustained operation.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"104 11","pages":"5910-5920"},"PeriodicalIF":2.2,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cjce.70479","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149099480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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