Canadian Journal of Chemical Engineering最新文献_第10页

Moisture content determination along production line of ibuprofen soft gelatin capsule manufacturing by near infrared spectroscopy and ensemble deep neural networks 近红外光谱法和集成深度神经网络法测定布洛芬软性明胶胶囊生产过程中的水分含量

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2024-10-02 DOI: 10.1002/cjce.25496

Alejandro Romero, Joe Villa-Medina, Jorge Ropero, Néstor Cubillán

{"title":"Moisture content determination along production line of ibuprofen soft gelatin capsule manufacturing by near infrared spectroscopy and ensemble deep neural networks","authors":"Alejandro Romero, Joe Villa-Medina, Jorge Ropero, Néstor Cubillán","doi":"10.1002/cjce.25496","DOIUrl":"https://doi.org/10.1002/cjce.25496","url":null,"abstract":"In the manufacturing process of ibuprofen soft gelatin capsules, controlling moisture content at each production line stage, including in their components—gelatin, fill content, and shell—is vital to ensure quality and stability. This study developed and assessed an analytical method for rapid and non-destructive moisture determination using near-infrared spectroscopy (NIRS) coupled with deep neural networks (DNN) on all stages of the ibuprofen production line. The NIRS-DNN classifier models were able to distinguish between the three components, achieving accuracy scores of up to 99%. The DNN models for moisture quantification also demonstrated high accuracy, with R2 values exceeding 0.997 across all production stages and prediction errors to those of previously reported models. A significant advantage of the NIRS-DNN approach was its ability to maintain accuracy over a wide moisture concentration range, from 7% to 48%. The ensemble model, NIRS-EDNN, seamlessly integrated classification and quantification, revealing its potential for real-time process control in soft gel manufacturing. The comprehensive sampling approach ensured a diverse representation of moisture content, thereby enhancing the understanding of its impact on the final product stability, demonstrating that this methodology is potentially applicable to any soft gelatin capsule tracking worldwide.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"103 5","pages":"2251-2262"},"PeriodicalIF":1.6,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835825","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

Investigation on the influence of particle size and porosity on solid phase fluidization and heat transfer in carbon fibre porous media 粒径和孔隙率对碳纤维多孔介质固相流化和传热影响的研究

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2024-10-02 DOI: 10.1002/cjce.25511

Licheng Wang, Wenwen Zhang, Zhouzhe Yang

{"title":"Investigation on the influence of particle size and porosity on solid phase fluidization and heat transfer in carbon fibre porous media","authors":"Licheng Wang, Wenwen Zhang, Zhouzhe Yang","doi":"10.1002/cjce.25511","DOIUrl":"https://doi.org/10.1002/cjce.25511","url":null,"abstract":"In this paper, the 3D pore structure was reconstructed and solid phase fluidization in porous media was investigated. Based on the two fluid model, a computational fluid dynamics (CFD) model of gas–solid fluidization was established and the influence of particle size and porosity were investigated. When porosity was constant, during the fluidization process, the particle velocity and solid concentration standard deviation gradually decreased, and the bed height increased. At the same time, the smaller the particle size was, the smaller the solid concentration standard deviation was, the faster the bed height increased, and the more the particle temperature decreased. Based on the fixed value of particle size, when studying the effect of porosity on fluidization, it was found that with the enhancement of solid-phase fluidization, particle velocity, solid concentration standard deviation, and particle temperature decreased, and bed height increased. Moreover, when porosity was large, particle velocity decreased rapidly, and solid concentration standard deviation reached a smaller minimum value, which took a longer time. Within the same time, the particle temperature also decreased less.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"103 5","pages":"2412-2425"},"PeriodicalIF":1.6,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835826","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

A physics-constrained hybrid residual neural network for the prediction of moisture content in a closed-cycle drying system 基于物理约束的混合残差神经网络的闭式干燥系统含水率预测

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2024-10-02 DOI: 10.1002/cjce.25516

Mengfei Zhou, Ruizhen Wang, Rong Cheng, Qin Sun, Qiqing Yu, Luyue Xia, Xiaofang Sun

{"title":"A physics-constrained hybrid residual neural network for the prediction of moisture content in a closed-cycle drying system","authors":"Mengfei Zhou, Ruizhen Wang, Rong Cheng, Qin Sun, Qiqing Yu, Luyue Xia, Xiaofang Sun","doi":"10.1002/cjce.25516","DOIUrl":"https://doi.org/10.1002/cjce.25516","url":null,"abstract":"Closed-cycle drying technology has the advantages of safety, energy saving, and environmental protection, and has a wide application prospect. Due to the multi-physics and multi-scale nature of heat/mass transfer in the closed-cycle drying process, as well as the characteristics of drying medium circulation and energy integration, it is difficult to obtain the product moisture content prediction model in closed-cycle process based on rigorous closed-cycle drying process mechanism model. However, accurate monitoring of product moisture content in the closed-cycle drying process is the key to improving drying quality and process optimization. Aiming at the challenges in predicting moisture content, this paper proposes a physics-constrained hybrid residual neural network (PC-HRNN) for soft sensor modelling within a designed closed-cycle drying system. The characteristic of this proposed method lies in its effective fusion of physics, knowledge, and data. First, a hybrid residual neural network (HRNN) is constructed based on the integration of a physics model and a data-driven model. The HRNN takes the knowledge from the physics model as its auxiliary features and learns the prediction residuals of the physics model through a neural network model. Then, a new loss function that takes into account physical laws is introduced into HPNN to standardize model training and improve the generalization performance of the model. The experimental results show that the PC-HRNN model improves prediction accuracy and model robustness, reduces the demand for data, and demonstrates stronger extrapolation capabilities under limited data.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"103 5","pages":"2204-2217"},"PeriodicalIF":1.6,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835823","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

Evaluating the efficacy of palm waste in adsorption processes for wastewater treatment: A review 评价棕榈废弃物在废水处理中的吸附效果：综述

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2024-10-02 DOI: 10.1002/cjce.25515

Nicky Rahmana Putra, Muhammad Abbas Ahmad Zaini, Ahmad Syahmi Zaini, Bramantyo Airlangga, Dwila Nur Rizkiyah, Heri Septya Kusuma, Sri Agustini, Syahrial Abdullah, Yustisia Yustisia, Izhar Khairullah, I. Gusti Komang Dana Arsana

{"title":"Evaluating the efficacy of palm waste in adsorption processes for wastewater treatment: A review","authors":"Nicky Rahmana Putra, Muhammad Abbas Ahmad Zaini, Ahmad Syahmi Zaini, Bramantyo Airlangga, Dwila Nur Rizkiyah, Heri Septya Kusuma, Sri Agustini, Syahrial Abdullah, Yustisia Yustisia, Izhar Khairullah, I. Gusti Komang Dana Arsana","doi":"10.1002/cjce.25515","DOIUrl":"https://doi.org/10.1002/cjce.25515","url":null,"abstract":"The growing environmental concerns related to industrial effluents and waste underscore the urgent need for sustainable and cost-effective wastewater treatment solutions. This review investigates the efficacy of palm waste-derived adsorbents for removing heavy metals and organic pollutants from wastewater. It explores various modifications—including physical, chemical, and nanomaterial enhancements—applied to palm waste materials such as palm kernel shells, empty fruit bunches, and palm oil fuel ash, aimed at improving their adsorption capacities. The review reveals that these modified palm waste adsorbents demonstrate high removal efficiencies for contaminants like Cu(II), Pb(II), and organic dyes, often surpassing conventional adsorbents. Nonetheless, challenges remain, such as optimizing adsorbent preparation, understanding adsorption mechanisms in multi-component systems, and enhancing adsorbent reusability. This review highlights the need for continued research to address these issues and advance the application of palm waste-based materials in sustainable wastewater treatment.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"103 5","pages":"2088-2106"},"PeriodicalIF":1.6,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835827","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

Identification of sparse nonlinear controlled variables for near-optimal operation of chemical processes 化工过程近最优操作的稀疏非线性控制变量辨识

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2024-10-01 DOI: 10.1002/cjce.25514

Xie Ma, Hongwei Guan, Lingjian Ye

引用次数: 0

Modelling and parameter identification of penicillin fermentation using physics-informed neural networks 利用物理信息神经网络对青霉素发酵进行建模和参数识别

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2024-09-27 DOI: 10.1002/cjce.25510

Siqi Zhao, Zhonggai Zhao, Fei Liu

引用次数: 0

Analysis of chemical properties for biodiesel derived from crude palm oil 从棕榈油中提取的生物柴油的化学性质分析

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2024-09-24 DOI: 10.1002/cjce.25501

Wan Nur Aisyah Wan Osman, Jonathan Khoo Lee Min, Shafirah Samsuri

{"title":"Analysis of chemical properties for biodiesel derived from crude palm oil","authors":"Wan Nur Aisyah Wan Osman, Jonathan Khoo Lee Min, Shafirah Samsuri","doi":"10.1002/cjce.25501","DOIUrl":"https://doi.org/10.1002/cjce.25501","url":null,"abstract":"High biodiesel purity (98.86% to 99.54%) has been achieved using cooking oil, which undergoes various purification stages before being sold. This inherent purity contributes to the high biodiesel purity produced during solvent-aided crystallization (SAC). This study aims to investigate the performance of SAC using unpurified oil as the feedstock for crude biodiesel preparation. Crude palm oil (CPO) was used as the feedstock, and the effects of crystallization temperature (6, 8, 10, 12, and 14°C), crystallization time (20, 25, 30, 35, and 40 min), and shaking speed (32, 43, 61, 71, and 84 rpm) were measured. The highest biodiesel purity achieved was 99.05% at 6°C crystallization temperature, 30 min crystallization time, and medium shaking speed. Additionally, all samples met international standards EN 14214 and ASTM D6751 for chemical properties, including iodine and acid value analysis. These results suggest that SAC is an effective method for producing high-quality biodiesel from less refined feedstock, potentially lowering production costs and expanding the range of viable raw materials for biodiesel production.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"103 5","pages":"2053-2065"},"PeriodicalIF":1.6,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143836377","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

Assuring optimality in surrogate-based optimization: A novel theorem and its practical implementation in pressure swing adsorption optimization 代理优化中的最优性保证：变压吸附优化中的一个新定理及其实际实现

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2024-09-24 DOI: 10.1002/cjce.25512

Carine Menezes Rebello, Erbet Almeida Costa, Antonio Santos Sánchez, Fredy Vides, Idelfonso B. R. Nogueira

{"title":"Assuring optimality in surrogate-based optimization: A novel theorem and its practical implementation in pressure swing adsorption optimization","authors":"Carine Menezes Rebello, Erbet Almeida Costa, Antonio Santos Sánchez, Fredy Vides, Idelfonso B. R. Nogueira","doi":"10.1002/cjce.25512","DOIUrl":"https://doi.org/10.1002/cjce.25512","url":null,"abstract":"Surrogate-based optimization has gained significant traction in several engineering fields, given its ability to handle complex systems without significant computational burdens. However, surrogate models are approximations and may have limitations, including the possibility of artificial minima. The main contribution of this work is the derivation of a robustness test that guarantees the optimality of surrogate-based optimization. The derivation of this metric is based on the universal approximation theorem. The full framework proposed in this work is also composed by a sampling sizing methodology to randomly select samples within a feasible operating region (FOR) resulting from the optimization population, reducing the computational cost of the analysis and avoiding biases in the robustness calculation. The applicability and importance of this methodology are demonstrated through a case study of a complex chemical process—a pressure swing adsorption (PSA) unit—which presents a high computational cost to solve optimization problems. The results highlight the need and importance of evaluating the optimality of surrogate-based optimization schemes.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"103 3","pages":"1036-1059"},"PeriodicalIF":1.6,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cjce.25512","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143118994","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

Facile synthesis of zeolitic-imidazole framework-67 (ZIF-67) for the adsorption of indigo carmine dye 吸附靛蓝胭脂虫染料的沸石-咪唑框架-67 (ZIF-67) 的简便合成方法

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2024-09-24 DOI: 10.1002/cjce.25503

Duygu Yanardag Kola, Serpil Edebali

{"title":"Facile synthesis of zeolitic-imidazole framework-67 (ZIF-67) for the adsorption of indigo carmine dye","authors":"Duygu Yanardag Kola, Serpil Edebali","doi":"10.1002/cjce.25503","DOIUrl":"https://doi.org/10.1002/cjce.25503","url":null,"abstract":"This study aims to synthesize ZIF-67 for the adsorption of indigo carmine (I.C.) dye. ZIF-67 materials were synthesized under different conditions and the synthesis condition of ZIF-67 giving the best adsorption efficiency was obtained. In batch adsorption studies, pH, adsorbent amount, contact time, initial dye concentration, and temperature effects were investigated. Adsorption data were applied to Langmuir, Freundlich, and Temkin isotherm models. The best correlation value was obtained in Langmuir isotherm (R2 = 0.999). The adsorption of I.C. dye with ZIF-67 occurred in a monolayer with a homogeneous surface according to Langmuir isotherm. The highest adsorption capacity value of ZIF-67 metal–organic framework for I.C. dye was found as 370 mg/g. Kinetic model studies were also performed and pseudo first-order, pseudo second-order, and intraparticle diffusion models were used. Pseudo second-order was the best fitting kinetic model to the data (R2 = 0.997). Adsorption mechanisms of ZIF-67 for I.C. dye include electrostatic interaction, π–π interaction, and hydrogen bonding. Thermodynamic studies showed that I.C. removal by ZIF-67 is an exothermic and spontaneous process. ZIF-67 was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscope (FE-SEM), and N2 adsorption–desorption. The surface area of synthesized ZIF-67 was found 1493 m2 g−1. The salt concentration effect on I.C. adsorption by ZIF-67 was also investigated, showing an increase in adsorption capacities with increasing salt concentration. The regeneration study was carried out and after 5 cycles, the reduction in efficiency was 21%.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"103 5","pages":"2373-2385"},"PeriodicalIF":1.6,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143836378","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

Identifying design criteria for implementing inherent safety in chemical process industries part 2: Design mechanism 确定实施化学过程工业固有安全的设计标准。第2部分：设计机制

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2024-09-23 DOI: 10.1002/cjce.25497

Zafirah Zakaria, Kamarizan Kidam, Mimi H. Hassim

{"title":"Identifying design criteria for implementing inherent safety in chemical process industries part 2: Design mechanism","authors":"Zafirah Zakaria, Kamarizan Kidam, Mimi H. Hassim","doi":"10.1002/cjce.25497","DOIUrl":"https://doi.org/10.1002/cjce.25497","url":null,"abstract":"Inherent safety concepts are common knowledge today, but accidents with similar characteristics do recur. Research on accident causes found that design errors, especially equipment failure, contribute the highest percentage of accidents. The development of inherent safety tools has been increasing at a positive pace, but only a small number of these tools are applicable to equipment design. Ample amounts of inherent safety tools are only suitable to be used at the early design stage. This amplifies the fact that inherent safety tools are still conceptual (e.g., change process routes, change safer materials). This is in contrast to the circumstances, where tools are expected to reinforce the inherent safety of equipment. The objective of this research is to identify design mechanism that can help trigger design thinking for implementation of inherent safety in the chemical process industry. To identify such a design mechanism, 526 cases were collected, and knowledge of the mechanism was extracted from design changes and presented in this research paper. The mechanisms were classified according to equipment and inherent safety keywords. The significant design mechanisms from the overall summation were listed (turbulence, change heat transfer fluid, continuous removal, large surface area, corrosion resistance, seamless joint, thin film, dividing wall, on demand, and double wall).","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"103 1","pages":"63-81"},"PeriodicalIF":1.6,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142862210","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