Canadian Journal of Chemical Engineering最新文献_第9页

An optimal sustainable planning strategy for national carbon capture deployment: A review on the state of CO2 capture in Canada 国家碳捕集部署的最佳可持续规划战略：加拿大二氧化碳捕集现状综述

IF 2.1 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2024-03-25 DOI: 10.1002/cjce.25249

Samantha A. Usas, Luis Ricardez-Sandoval

{"title":"An optimal sustainable planning strategy for national carbon capture deployment: A review on the state of CO2 capture in Canada","authors":"Samantha A. Usas, Luis Ricardez-Sandoval","doi":"10.1002/cjce.25249","DOIUrl":"10.1002/cjce.25249","url":null,"abstract":"This study reviews the steps Canada is taking to address sustainable decarbonization in the context of carbon capture. This work also presents a new optimal framework for national optimal deployment in need of strategic carbon capture implementation. This framework considers external environmental and social considerations often missing from implementation frameworks, which will aid policy makers in more well-rounded deployment decisions. Thus far, Canada's carbon projects have captured a total of 36.3 Mt of CO2 which has cost over $2.7 billion to implement. The Canadian case study utilizing the proposed optimal planning strategy shows that implementation of 58 post-combustion carbon capture (PCC) plants located in seven provinces (Alberta, British Columbia, New Brunswick, Nova Scotia, Ontario, Quebec, and Saskatchewan) would result in Canada meeting the national targets. This implementation includes 16 plants removing emissions from the Electricity sector, 16 from the Heavy Industry sector, and 26 from the Oil and gas sector resulting in new emissions levels of 11.82 MtCO2, 27.63 MtCO2, and 107.01 MtCO2 in each sector, respectively. Additional case studies examined the impact of Alberta's emissions and varying the national targets resulting in different optimal implementations plans. Through a sensitivity analysis on these targets, it was determined that plant distribution is heavily dependent on provincial energy and CO2 transport prices. Additionally, if Alberta were to reduce their GHG emissions by 50% through alternative sustainable methods, only 35 PCC plants would be required to meet national targets. This framework provides a sustainable tool for decision-makers to accelerate decarbonization.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cjce.25249","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140322691","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

Performance evaluation of biodegradable polymer PHBV and PBAT blends with adjustable melt flow behaviour, heat deflection temperature, and morphological transition 可调节熔体流动性、热变形温度和形态转变的生物降解聚合物 PHBV 和 PBAT 混合物的性能评估

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2024-03-25 DOI: 10.1002/cjce.25235

Peter Zytner, Akhilesh Kumar Pal, Amar K. Mohanty, Manjusri Misra

{"title":"Performance evaluation of biodegradable polymer PHBV and PBAT blends with adjustable melt flow behaviour, heat deflection temperature, and morphological transition","authors":"Peter Zytner, Akhilesh Kumar Pal, Amar K. Mohanty, Manjusri Misra","doi":"10.1002/cjce.25235","DOIUrl":"10.1002/cjce.25235","url":null,"abstract":"Melt blending is a reliable and well-demonstrated strategy for improving the mechanical, thermal, rheological, and surface properties of biopolymers. Poly(hydroxy-3-butyrate-co-3-hydroxyvalerate) (PHBV) and poly(butylene adipate-co-terephthalate) (PBAT) are the two popular choices for blending polymers due to their diverse properties and complementary soil biodegradable behaviour. Due to their immiscibility, however, blending with the help of processing additives is necessary to reap the most significant benefits from this process and to avoid immiscibility issues. This study utilized the additives (peroxides and epoxy-based chain extender) to compatibilize the biodegradable polymers PHBV and PBAT in a 60:40 blending ratio. The tensile strength and Young's modulus of the PHBV/PBAT(60/40) blend were improved by 32% and 64%, respectively, after adding a combination of peroxide (0.02 phr) and chain extender (0.3 phr) due to the formation of a complex network structure with increased chain length. The positive effect of an additive addition was also reflected by a 30°C increment in heat deflection temperature of biodegradable blend due to its high modulus value as supported by mechanical properties. The combined action of a peroxide and chain extender demonstrated a significantly higher complex viscosity of the PHBV/PBAT(60/40) blend due to the formation of a crosslinked polymer network as analyzed by rheological analysis. Our research demonstrated the effect of additives and their combined impact on analytical properties of PHBV/PBAT(60/40) blend to guide future work in improving their candidature to serve as a drop-in solution in replacing non-biodegradable petro-based plastic products.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cjce.25235","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140322692","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

Aerosol deposition and emission from a United States Pharmacopeia-induction port when using a pressurized metered-dose inhaler with and without a valved holding chamber 使用带阀和不带阀容纳腔的加压计量吸入器时美国药典吸入口的气溶胶沉积和排放情况

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2024-03-19 DOI: 10.1002/cjce.25250

Yamila L. de Charras, M. Verónica Ramírez Rigo, Diego E. Bertin

{"title":"Aerosol deposition and emission from a United States Pharmacopeia-induction port when using a pressurized metered-dose inhaler with and without a valved holding chamber","authors":"Yamila L. de Charras, M. Verónica Ramírez Rigo, Diego E. Bertin","doi":"10.1002/cjce.25250","DOIUrl":"10.1002/cjce.25250","url":null,"abstract":"The testing of pharmaceutical aerosols includes measuring the aerodynamic particle size distribution, which is usually performed on cascade impactors. In the next generation impactor (NGI), the aerosol dose is introduced through an induction port (IP), being separated into different aerodynamic diameter ranges by seven stages and a micro-orifice collector. The IP plays an important role in estimating the oropharyngeal deposition fraction. While the IP retains mainly large particles, it also tends to retain particles in the respirable range. In this work, the deposition of particles in the IP of an NGI is studied, both experimentally and through computational fluid dynamic (CFD) simulations. Experimental tests are conducted both with the pressurized metered-dose inhaler (pMDI) alone and in conjunction with a cylindrical valved holding chamber (VHC). For each case, the total mass deposition that occurs in the VHC, IP, and NGI stages is measured, as well as the mass median aerodynamic diameter of the aerosol leaving the IP. The CFD simulations show minimal variations in results regardless of the injection method due to the relatively low velocity and spray angle of the pMDI-generated aerosol. If the flap-valve is removed from the VHC, significant particle deposition occurs upstream or within the valve region, with downstream air recirculation contributing to small particle deposition. Based on the CFD results, a correlation is proposed to accurately predict the particle escape fraction of the IP and VHC, which allows estimation of the tannin distribution of particles collected in the NGI stages, especially those corresponding to the range of respirable particles.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140203848","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

Fault diagnosis with high accuracy and timeliness for semi-batch crystallization process based on deep learning with multiple pattern representation 基于多模式表示的深度学习，为半批量结晶过程提供高准确性和及时性的故障诊断

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2024-03-19 DOI: 10.1002/cjce.25247

Silin Rao, Ziteng Wang, Jingtao Wang

{"title":"Fault diagnosis with high accuracy and timeliness for semi-batch crystallization process based on deep learning with multiple pattern representation","authors":"Silin Rao, Ziteng Wang, Jingtao Wang","doi":"10.1002/cjce.25247","DOIUrl":"10.1002/cjce.25247","url":null,"abstract":"The research on chemical process fault diagnosis has made significant progress, but there is still a big gap in its application to complex practical industrial processes. As for the fault diagnosis of batch crystallization processes, the recently-proposed dynamic time warping–convolutional neural network (DTW-CNN) model has achieved a great improvement in the fault diagnosis. However, its fault diagnosis rate (FDR) and timeliness of fault diagnosis are still low, and thus, it needs to improve further before being applied to the practical application. In this paper, a multiple pattern representation–convolutional neural network (MPR-CNN) model is proposed and applied for the fault diagnosis of a semi-batch crystallization process. The MPR-CNN model enables the manual extraction of features with four pattern representation algorithms in the data pre-processing stage, and generates a three-dimensional matrix which is used as the training sample and input to the CNN for the formal feature extraction and weight learning. An excellent classification performance, with an average FDR of 97.5%, is achieved. This model is also applied for the fault diagnosis of process data within a shorter period of time after the occurrence of faults. The results indicate that the model could make timely fault diagnosis with a highly stable and accurate performance after the occurrence of a fault.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140203850","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

Chiral nematic cellulose nanocrystal composites: An organized review 手性向列性纤维素纳米晶复合材料：有条理的综述

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2024-03-18 DOI: 10.1002/cjce.25253

Kevin J. De France

{"title":"Chiral nematic cellulose nanocrystal composites: An organized review","authors":"Kevin J. De France","doi":"10.1002/cjce.25253","DOIUrl":"10.1002/cjce.25253","url":null,"abstract":"Cellulose nanocrystals (CNCs) are commercially available materials derived from cellulose, the most abundant biopolymer on our planet. Due largely to their high strength, high surface area-to-volume ratio, tailorable surface chemistry, and the abundance of biomass feedstocks with which to produce them, CNCs have attracted significant interest in applications spanning the paints and coatings, composites, packaging, and biomedical sectors. However, and perhaps most interestingly, CNCs will self-assemble (or, as I've teased in the title, organize) to form highly ordered chiral nematic liquid crystal phases when concentrated in suspension. Upon complete solvent evaporation, this chiral nematic order is ‘locked’, yielding films with structural colour—colour arising not due to chemical pigments, but rather due to the physical structure of a material itself. In the pursuit of novel multi-functional materials, research interest has shifted recently towards the incorporation of functional additives to form composite chiral nematic films. Along with introducing the basics of liquid crystals and self-assembly, this review discusses the main approaches used in order to form CNC-based composite films: co-assembly, templating, and post-processing, and highlights exceptional examples in each case. Finally, I give my uniquely Canadian perspective on the current status, future prospects, and major challenges associated with the development of CNC-based chiral nematic composite materials.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cjce.25253","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140172059","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

CFD-ANN coupling model simulation of gas–solid feeding design for ternary biomass mixtures in bubbling fluidized bed gasifier 气泡流化床气化炉中三元生物质混合物气固喂料设计的 CFD-ANN 耦合模型模拟

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2024-03-18 DOI: 10.1002/cjce.25243

Chaiwat Soanuch, Vishnu Pareek, Pornpote Piumsomboon, Benjapon Chalermsinsuwan

{"title":"CFD-ANN coupling model simulation of gas–solid feeding design for ternary biomass mixtures in bubbling fluidized bed gasifier","authors":"Chaiwat Soanuch, Vishnu Pareek, Pornpote Piumsomboon, Benjapon Chalermsinsuwan","doi":"10.1002/cjce.25243","DOIUrl":"10.1002/cjce.25243","url":null,"abstract":"The performance of continuous feeding fluidized bed reactors is significantly influenced by their design. These reactors can effectively operate with a wide range of biomass mixtures. Therefore, it is imperative to carefully design the gas distributor plate and solid tube inlet to ensure stable fluidization and uniform distribution of fluidizing gas and solid particles within the reactor. This study investigated the impact of gas–solid feeder design in bubbling fluidized bed gasifier for biomass mixtures on system hydrodynamics, employing a computational fluid dynamics–artificial neural network (CFD-ANN) coupling model to achieve more realistic simulations. A 2k factorial experimental design was adopted to inquire the impact of gas and solid feeding systems. The responses under investigation included the gas–solid mixing index and the solid residence time, both of which hold pivotal roles in specific chemical processes related to biomass utilization in fluidized bed technology. All cases were successfully simulated, and the results uncovered that the position and length of the solid inlet tube wielded a significant influence on reactor performance, particularly concerning solid residence time. Furthermore, the designs of the gas distributor were identified as critical factors capable of enhancing system turbulence and mixing. In summary, the results showed the potential for enhancing reactor performance through the optimization of gas–solid feeding systems and underscored the efficacy of the ANN drag model in simulating continuous biomass gasification systems.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140172298","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

Monitoring dynamic process with orthonormal subspace analysis 利用正交子空间分析监控动态过程

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2024-03-17 DOI: 10.1002/cjce.25242

Zhijiang Lou, Weichen Hao, Shan Lu, Yonghui Wang

引用次数: 0

Historical analysis of accidents in the Saudi Arabian chemical industry 沙特阿拉伯化学工业事故的历史分析

IF 2.1 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2024-03-17 DOI: 10.1002/cjce.25240

Adriana Palacios, Erika Palacios-Rosas, Tawfiq Abdul-Aziz-Al-Mughanam

{"title":"Historical analysis of accidents in the Saudi Arabian chemical industry","authors":"Adriana Palacios, Erika Palacios-Rosas, Tawfiq Abdul-Aziz-Al-Mughanam","doi":"10.1002/cjce.25240","DOIUrl":"10.1002/cjce.25240","url":null,"abstract":"The chemical industry oversees the transformation of raw materials into products through unit operations that require appropriate organization to avoid accidents. Hence, it is important to do analyses to identify any possible mistakes, substances involved, or common sources of accidents in the industry to avoid such errors and design better safety measures to create a safer space for the chemical industry, which is hugely important and boasts a worldwide presence. This document presents an analysis of chemical industry-related accidents in Saudi Arabia, namely fires, explosions, and toxic clouds which occurred in the chemical and petrochemical industries and while transporting hazardous materials in the last 46 years. Three databases—one for each type of accident—were created with information collected from articles, newspapers, videos, and papers. ‘Explosion’, ‘fire’, and ‘toxic clouds’ were the key words used for the research, focusing on accident taking place in Saudi Arabia. Once the information had been collected, the accidents were filtered, checked, and moved to a fourth general database. It is shown that 54.0% of all related accidents were fires, 25.4% toxic clouds, and 20.6% were explosions. The provinces with the most registered accidents were Riyadh (15), Jeddah (10), and Jubail (6).","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140154837","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 new pressure control scheme on steam-assisted gravity drainage for heavy oil production 重油生产蒸汽辅助重力泄油的新型压力控制方案

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2024-03-17 DOI: 10.1002/cjce.25233

Xinfeng Jia, Kangkang Wang, Jian Xiong, Binhai Jiao, Dong Liu, Zhangxin Chen, Liangliang Jiang, Zhanxi Pang

{"title":"A new pressure control scheme on steam-assisted gravity drainage for heavy oil production","authors":"Xinfeng Jia, Kangkang Wang, Jian Xiong, Binhai Jiao, Dong Liu, Zhangxin Chen, Liangliang Jiang, Zhanxi Pang","doi":"10.1002/cjce.25233","DOIUrl":"10.1002/cjce.25233","url":null,"abstract":"As one the most important recovery mechanisms of steam-assisted gravity drainage (SAGD), gravity drainage is largely dependent on the inclination angle of the steam chamber edge. The existence of solution-gas causes an ellipsoid-shaped chamber that has small inclination angle at the bottom, which leads to inefficient gravity drainage and slows down oil production. To address this problem, this study proposes a new scheme, variable-pressure SAGD (VP-SAGD). It is basically a SAGD process, at certain stages of which pressure surge is induced by controlling the operating conditions so that the shape of steam chamber can be altered. This leads to a larger slip angle in the steam chamber at the bottom and more efficient heat transport between hot steam and crude oil. Results show that VP-SAGD is able to increase oil recovery by up to 20% and decrease cumulative steam–oil ratio (cSOR) by up to 7%. Its special oil extraction mechanisms include swabbing effect, enlarged inclination angle of steam chamber boundary at the bottom, and enhanced heat transfer. Particularly, the inclination angle is increased by up to 40%. In addition, a lower producer bottom-hole pressure (BHP) during pressure drawdown leads to a better production incremental in later stages. The optimal timing for pressure surge is the middle stage of steam chamber growth. The lower the producer BHP decrease, the better the yield increase. Moreover, The VP-SAGD strategy works better in heavy oil reservoirs with a permeability of k = 0.5–10 Darcy or solution gas content of greater than 2%.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140154914","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

Hierarchical MPC-based control structure for continuous biodiesel production 基于分层 MPC 的连续生物柴油生产控制结构

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2024-03-13 DOI: 10.1002/cjce.25244

Miguel A. Patti, Lautaro Braccia, Diego Feroldi, David Zumoffen

{"title":"Hierarchical MPC-based control structure for continuous biodiesel production","authors":"Miguel A. Patti, Lautaro Braccia, Diego Feroldi, David Zumoffen","doi":"10.1002/cjce.25244","DOIUrl":"10.1002/cjce.25244","url":null,"abstract":"This paper presents an advanced control strategy for a continuous biodiesel production plant based on a steady-state optimizer and model predictive control (MPC). The proposed control system aims to optimize the production process and maintain product quality within required specifications. First, two steady-state optimizers were developed with the aim of minimizing the steady-state deviations of the manipulated and controlled variables and minimizing the biodiesel production cost. An MPC was then formulated to track the set points imposed by the steady-state optimizers in real time and manipulate the control inputs accordingly. The scope of this work is limited to measured disturbances only. The effectiveness of the proposed control strategy is demonstrated through dynamic simulation studies performed using HYSYS and MATLAB. The results obtained using the proposed control methodology show significant improvements in performance compared to conventional control strategies. Furthermore, it avoids the quality problem reflected in the amount of water in the final product that the original plant presented due to an inadequate design of the control strategy. Overall, the results of this research indicate that the proposed advanced control strategy has the potential to improve the efficiency and profitability of continuous biodiesel production plants.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140154849","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