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

Adsorption and the subsequent desorption of lactic acid molecules on zirconium metal-organic frameworks: An innovative and efficient approach for the recovery of the produced lactic acid from fermentation broth 乳酸分子在金属锆有机框架上的吸附和随后的解吸：一种从发酵液中回收产生的乳酸的创新和有效的方法

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2025-02-06 DOI: 10.1002/cjce.25616

Mohammad Saeed Rahimi, Mehri Esfahanian

{"title":"Adsorption and the subsequent desorption of lactic acid molecules on zirconium metal-organic frameworks: An innovative and efficient approach for the recovery of the produced lactic acid from fermentation broth","authors":"Mohammad Saeed Rahimi, Mehri Esfahanian","doi":"10.1002/cjce.25616","DOIUrl":"https://doi.org/10.1002/cjce.25616","url":null,"abstract":"Nowadays, biomass-derived lactic acid serves as a significant foundational chemical in the pursuit of sustainable production of various materials. Nevertheless, the current fermentation process faces limitations due to the challenging retrieval of the lactic acid product from the fermentation broth, resulting in the production of gypsum waste in stoichiometric quantities. In this work, we demonstrate the efficacy of Zr-UiO-66 metal–organic frameworks (MOFs) as effective adsorbents in the process of recovery of lactic acid from the fermentation broth. The MOF beads have been manufactured successfully and were applied to recover lactic acid from the solution and the experimental conditions were optimized. The results show that Zr-UiO-66 adsorbent has a good ability of up to 98.8% to adsorb the produced lactic acid from its fermentation broth at a pH value of 6.5, adsorbent (MOF) dosage of 0.625 g, an initial concentration of 15 mg/L, temperature of 298 K, within process time of 4 h. The data obtained from the adsorption process demonstrated a satisfactory fit with the Langmuir isotherm model (with a R2 of 0.958), kinetics (with a R2 of 0.970), and thermodynamic results, confirming the spontaneous and exothermic nature of the adsorption process. The regeneration experiment of the MOF beads showed that the adsorption efficiency of Zr-UiO-66 remained above 90% even after undergoing seven cycles.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"103 8","pages":"3940-3954"},"PeriodicalIF":1.6,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144551097","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

Experimental methods in chemical engineering: Virtual issue II preface 化学工程中的实验方法：虚拟第II期前言

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2025-02-06 DOI: 10.1002/cjce.25632

Gregory S. Patience

引用次数: 0

Optimal control of axial dispersion tubular reactors with recycle: Addressing state-delay through transport PDEs 带循环的轴向分散管式反应器的最优控制：通过传输pde处理状态延迟

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2025-02-06 DOI: 10.1002/cjce.25629

Behrad Moadeli, Guilherme Ozorio Cassol, Stevan Dubljevic

{"title":"Optimal control of axial dispersion tubular reactors with recycle: Addressing state-delay through transport PDEs","authors":"Behrad Moadeli, Guilherme Ozorio Cassol, Stevan Dubljevic","doi":"10.1002/cjce.25629","DOIUrl":"https://doi.org/10.1002/cjce.25629","url":null,"abstract":"The optimal control of an axial tubular reactor with a recycle stream is addressed as a key type of setting for distributed parameter systems in chemical engineering. The intrinsic time delay from the recycle process, thus far overlooked in relevant literature, is modelled as a transport partial differential equation (PDE), resulting in a system of coupled parabolic and hyperbolic PDEs. Utilizing Danckwerts boundary conditions, the reactor is boundary-controlled with the control input at the inlet. A continuous-time optimal linear quadratic regulator is developed to stabilize the infinite-dimensional system, employing a late lumping approach in order to preserve the properties of the original infinite dimensional system in controller design. The full-state feedback regulator is designed by solving the Operator Riccati Equation (ORE), leveraging the system's Riesz-spectral properties. To address practical limitations of full-state feedback, a Luenberger observer is also proposed, enabling state reconstruction from boundary measurements. Numerical simulations are conducted to evaluate the proposed control strategies. The results demonstrate that the full-state feedback regulator effectively stabilizes the system. A comparison is made between two configurations where different numbers of eigenmodes were selected to design the controller. The observer-based regulator also stabilizes the system successfully using merely output measurements, effectively overcoming the challenge of limited state access.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"103 8","pages":"3751-3766"},"PeriodicalIF":1.6,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cjce.25629","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144551224","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

Supercritical water injection into unconventional reservoirs: A comprehensive flow model of an injection well connected to a reservoir 非常规油藏超临界注水：与油藏相连的注水井的综合流动模型

IF 1.9 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2025-02-06 DOI: 10.1002/cjce.25630

Roman Yusupov, Aman Turakhanov, Elena Mukhina, Alexey Gorlanov, Alexander Cheremisin, Konstantin Prochukhan, Alexey Cheremisin

{"title":"Supercritical water injection into unconventional reservoirs: A comprehensive flow model of an injection well connected to a reservoir","authors":"Roman Yusupov, Aman Turakhanov, Elena Mukhina, Alexey Gorlanov, Alexander Cheremisin, Konstantin Prochukhan, Alexey Cheremisin","doi":"10.1002/cjce.25630","DOIUrl":"https://doi.org/10.1002/cjce.25630","url":null,"abstract":"Supercritical water injection (SCW) is a promising thermal method for enhancing oil recovery from hard-to-recover reservoirs. The success of this technique relies heavily on the downhole properties of the injected fluid, particularly under high-pressure, high-temperature conditions. In this study, a model of SCW flow through thermally insulated injection tubing, comprising both vertical and horizontal sections, is developed. An engineering code was created to simulate SCW injection, incorporating a simplified reservoir model in the horizontal section as a boundary condition, with reservoir injectivity determined iteratively based on wellhead pressure. Numerical examples illustrate the model's performance by examining the effects of varying injection system parameters. High-precision correlations were employed to calculate fluid thermodynamic properties, enabling accurate simulations. Key factors such as initial SCW temperature, insulation thermal conductivity, and skin factor were analyzed to assess their impact on pressure, temperature, and specific enthalpy distributions along the tubing. The findings provide insights into optimizing SCW injection parameters, underscoring the potential of this approach for effective thermal recovery in unconventional reservoirs.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"103 9","pages":"4571-4589"},"PeriodicalIF":1.9,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144767700","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

The ash deposition and structure characteristics for radiant syngas cooler based on the fluid-thermal-structure method using numerical simulation 基于流-热-结构方法的辐射合成气冷却器灰沉降及结构特性数值模拟

IF 1.9 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2025-02-06 DOI: 10.1002/cjce.25637

Guoyu Zhang, Yan Gong, Jianliang Xu, Qinghua Guo, Guangsuo Yu

{"title":"The ash deposition and structure characteristics for radiant syngas cooler based on the fluid-thermal-structure method using numerical simulation","authors":"Guoyu Zhang, Yan Gong, Jianliang Xu, Qinghua Guo, Guangsuo Yu","doi":"10.1002/cjce.25637","DOIUrl":"https://doi.org/10.1002/cjce.25637","url":null,"abstract":"The radiant syngas cooler (RSC) has the potential to significantly enhance energy efficiency as a critical heat recovery device in entrained-flow coal gasification technology. The dimensions of the RSC have a direct impact on the flow and heat transfer processes. In this study, an analysis was conducted to evaluate the heat transfer, ash deposition, and thermal structural deformation characteristics based on the fluid-thermal-structure interaction method of the RSC. The simulation results exhibit a high degree of correlation with the industrial data. The results indicate that the increase in length-diameter ratios decreases the area of the recirculation zone. Ash deposition thickness increases with the increase of length–diameter ratios. A maximum ash deposition thickness of 15.2 mm while the length-diameter ratio is 9. The effect of ash deposition is amplified with an increase in length–diameter ratios on heat transfer. The thermal deformation of top and bottom structures is observed to increase with an increase in length–diameter ratios without ash deposition while decreasing with ash deposition. For the optimized RSC structure, an increase in inlet temperature and load results in a corresponding increase in ash layer thickness, while the effect on thermal deformation is limited. The current results can serve as a reference for the integral structural optimal design of industrial RSC.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"103 9","pages":"4275-4286"},"PeriodicalIF":1.9,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144767638","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

GRU-based stacked sparse autoencoder with attention mechanism for process monitoring 基于gru的具有关注机制的堆栈稀疏自编码器

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2025-02-05 DOI: 10.1002/cjce.25636

Zengdi Miao, Ping Wu, Zhenquan Wu, Xiangjun Jia, Hui Xu, Jian Jiang

{"title":"GRU-based stacked sparse autoencoder with attention mechanism for process monitoring","authors":"Zengdi Miao, Ping Wu, Zhenquan Wu, Xiangjun Jia, Hui Xu, Jian Jiang","doi":"10.1002/cjce.25636","DOIUrl":"https://doi.org/10.1002/cjce.25636","url":null,"abstract":"To ensure the operation safety of industrial processes, process monitoring techniques have been receiving considerably increasing attention from both academia and industry. The advent of deep learning has revolutionized data-driven process monitoring by effectively dealing with the inherent nonlinearity of industrial processes. In this work, a gated recurrent unit-based stacked sparse autoencoder with attention mechanism (GRU-SSAE-AM) model is developed for process monitoring. This model leverages the power of recurrent neural networks in conjunction with the sparse stacked autoencoder to tackle the temporal and nonlinear features present in process data. To enhance the model's ability to distill critical information indicative of process status, an attention mechanism is naturally integrated within the encoder–decoder framework. Experiments on an industrial benchmark of Tennessee Eastman process (TEP) and a real blast furnace ironmaking process (BFIP) are carried out to verify the capability and effectiveness of the proposed GRU-SSAE-AM based process monitoring method by comparison with other related methods.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"103 8","pages":"3767-3785"},"PeriodicalIF":1.6,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144550932","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

An overview of the potential utilization of solid acid catalysts for enhanced biodiesel production through hydrodynamic cavitation assistance: A mini-review 固体酸催化剂在水动力空化辅助下提高生物柴油生产中的潜在应用综述

IF 1.9 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2025-02-05 DOI: 10.1002/cjce.25634

Aryasomayajula Venkata Satya Lakshmi Sai Bharadwaj, Navneet Kumar Gupta

{"title":"An overview of the potential utilization of solid acid catalysts for enhanced biodiesel production through hydrodynamic cavitation assistance: A mini-review","authors":"Aryasomayajula Venkata Satya Lakshmi Sai Bharadwaj, Navneet Kumar Gupta","doi":"10.1002/cjce.25634","DOIUrl":"https://doi.org/10.1002/cjce.25634","url":null,"abstract":"Utilizing a catalytic approach for producing biodiesel from non-edible oils holds promise as a solution for the next generation of fuels. Therefore, the emerging research on replacing conventional catalysts and developing new waste-derived heterogeneous catalysts with acid–base properties in the intensified biodiesel production process aims to achieve significant scientific outcomes including developing a low-cost biorefinery and mitigating the increasing energy demand. Hence, a prospective replacement of green renewable solid acid catalysts over conventional or regularly used catalysts in the production of biodiesel using hydrodynamic cavitation-assisted reactors has been discussed in this review. The synthesis and importance of different solid acid catalysts zeolite-based and heteropolyacids is also discussed in this review. It is concluded that, to date, these catalysts are well used in biomass pyrolysis and very minimal in the pretreatment of lignocellulosic biomass, but there is no proper report on their application in the biodiesel synthesis from various non-commercial feedstocks. In this study, it is also reported that the hydrodynamic cavitation-assisted synthesis of biodiesel represents a novel approach with the potential to significantly boost yield and serve as a breakthrough method for industrial applications. The economic survey, circular economy, and life-cycle assessment studies concerning the proposed study are also presented in this study, from which it is concluded that the complete replacement of these green catalysts in the production of biodiesel will aid in the development of a clean and green sustainable environment.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"103 9","pages":"4172-4183"},"PeriodicalIF":1.9,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144767374","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 of a novel micro-cyclonic air flotation device for enhanced oil removal from wastewater 一种新型微旋流气浮装置的研究

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2025-02-05 DOI: 10.1002/cjce.25626

Zhong Yan, Xiaoli Zhu, Pengfei Liu, Rui Lv, Xinhe Dai, Guosheng Song, Zhenbo Wang

{"title":"Study of a novel micro-cyclonic air flotation device for enhanced oil removal from wastewater","authors":"Zhong Yan, Xiaoli Zhu, Pengfei Liu, Rui Lv, Xinhe Dai, Guosheng Song, Zhenbo Wang","doi":"10.1002/cjce.25626","DOIUrl":"https://doi.org/10.1002/cjce.25626","url":null,"abstract":"As global oilfields advance into mid-to-late development stages, the produced fluids contain increasingly high water content, leading to substantial wastewater volumes. Existing oily wastewater treatment systems face challenges in meeting stricter discharge standards. To address this issue, this work proposes a micro-cyclonic air flotation separator that integrates cyclonic and flotation technologies to enhance oil removal efficiency. An experimental setup was designed to systematically investigate the effects of structural and operational parameters on bubble formation and oil removal in a DN100 single-tube micro-cyclonic flotation device. Key operational parameters were selected, and structural parameters were optimized to support the development of a compact, high-efficiency separator for oily wastewater treatment. The experimental results revealed that increasing dissolved air pressure reduces mean bubble size, increases bubble number density, and raises gas holdup. Conversely, as air flow rate increases, the mean bubble size grows, the number density initially rises before decreasing, and gas holdup follows a similar trend. Optimal structural parameters were determined, under which the device demonstrated excellent oil removal performance across an oil concentration range of 200–1000 mg/L, achieving a maximum removal efficiency of 85.69%.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"103 8","pages":"3923-3939"},"PeriodicalIF":1.6,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144550931","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

Optimum salinity brine and surfactant interaction with crude oil and carbonated rock at fluid–fluid and rock-fluid interfaces: Evaluating ion-specific effects on the system 最佳盐度盐水和表面活性剂与原油和碳酸盐岩在流体-流体和岩石-流体界面的相互作用：评估离子对系统的特定影响

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2025-02-05 DOI: 10.1002/cjce.25593

Mohammad Maghsoudlou, Jamshid Moghadasi

{"title":"Optimum salinity brine and surfactant interaction with crude oil and carbonated rock at fluid–fluid and rock-fluid interfaces: Evaluating ion-specific effects on the system","authors":"Mohammad Maghsoudlou, Jamshid Moghadasi","doi":"10.1002/cjce.25593","DOIUrl":"https://doi.org/10.1002/cjce.25593","url":null,"abstract":"The smart water injection (SWI) method is derived from low salinity water flooding, which aims to increase oil production. The complexity and heterogeneity of carbonate reservoirs require further investigation. Understanding the active mechanisms during SWI is crucial for designing the injected water composition to enhance the efficiency of the method. However, there is a research gap regarding the dominant factors that influence the performance of SWI, particularly both the ‘fluid–fluid’ and ‘rock–fluid’ interactions, simultaneously. To address this issue, the article through new insight into ions, solutions, and tests tries to enhance the precision of the obtained results by optimizing the solutions by changing the potential determining ions (PDI) in fixed ionic strength through contact angle measurements. Furthermore, by using a cationic surfactant, which has not been previously used in low-salinity water flooding experiments, surfactant-free solutions, and proper tests for each mechanism, including Zeta potential, pH measurements, interfacial tension, vial test, high-resolution microscopy, and Karl Fischer titration, interactions on fluid–fluid and rock-fluid interfaces were tested and investigated. The results were validated through core flood tests. The study found that coordination was observed between multivalent ion exchange and water in oil micro-dispersion, which are two current mechanisms in both micro- and macro-scale media. In surfactant-free solutions, the effect of ions was discerned in the order of SO42−, Mg2+, and Ca2+. The formation of micro-emulsions and the IFT reduction by ionic pairs of surfactants significantly increased oil recovery by up to 65%. The effective ions facilitating this performance were ranked as follows: SO42− > Ca2+ > Mg2+.","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"103 7","pages":"3183-3207"},"PeriodicalIF":1.6,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144190968","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

Issue Highlights 问题突出

IF 1.6 4区工程技术

Canadian Journal of Chemical Engineering Pub Date : 2025-02-03 DOI: 10.1002/cjce.25323

引用次数: 0