Canadian Journal of Chemical Engineering最新文献

筛选
英文 中文
Evaluating the thermal stability of chemicals and systems: A review 评估化学品和系统的热稳定性:综述
IF 1.6 4区 工程技术
Canadian Journal of Chemical Engineering Pub Date : 2024-07-22 DOI: 10.1002/cjce.25422
Giuseppe Andriani, Gianmaria Pio, Ernesto Salzano, Chiara Vianello, Paolo Mocellin
{"title":"Evaluating the thermal stability of chemicals and systems: A review","authors":"Giuseppe Andriani,&nbsp;Gianmaria Pio,&nbsp;Ernesto Salzano,&nbsp;Chiara Vianello,&nbsp;Paolo Mocellin","doi":"10.1002/cjce.25422","DOIUrl":"10.1002/cjce.25422","url":null,"abstract":"<p>In the realm of chemical processing, particularly at the industrial scale, safety is of utmost importance. A predominant factor causing accidents within the chemical industry is runaway phenomena, primarily initiated by uncontrolled exothermic reactions. This review critically examines the often-overlooked decomposition mechanisms as a significant contributor to thermal energy release, necessitating a comprehensive revision and understanding of both experimental and theoretical strategies for assessing thermal degradation. Key to this discourse is the explication of calorimetry as the principal experimental technique, alongside ab initio quantum chemistry simulations as a robust theoretical framework for quantifying the most relevant properties. However, more than mere cognisance of these methodologies is required for a meticulous thermal stability assessment. The review emphasizes identifying and quantifying fundamental parameters through experimental and theoretical investigations. Only upon acquiring these parameters, including kinetic, thermodynamic, onset, and peak characteristics of the exothermic decomposition reactions, can one effectively mitigate risks and hazards in designing and optimizing chemical processes and apparatus. Furthermore, this review delineates qualitative and quantitative methodologies for hazard assessment, proffering strategies for estimating safe operational conditions and sizing relief devices. The paper culminates in exploring future trajectories in thermal stability assessments, focusing on emerging applications in lithium-ion batteries, electrolyzers, electrified reactors, ionic liquids, artificial intelligence and machine learning approaches. Thus, the paper underlines the evolving landscape of thermal risk management in contemporary and future chemical industries.</p>","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"103 1","pages":"42-62"},"PeriodicalIF":1.6,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cjce.25422","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141777267","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
Generation of biosurfactants by P. aeruginosa gi |KP163922| on waste engine oil in a free and immobilized cells system 铜绿假单胞菌 gi |KP163922| 在游离和固定细胞系统中对废机油产生的生物表面活性剂
IF 1.6 4区 工程技术
Canadian Journal of Chemical Engineering Pub Date : 2024-07-22 DOI: 10.1002/cjce.25419
Mohan Jujaru, Kajol Pradhan, Shailee Gaur, Amit Jain, Sushil Kumar
{"title":"Generation of biosurfactants by P. aeruginosa gi |KP163922| on waste engine oil in a free and immobilized cells system","authors":"Mohan Jujaru,&nbsp;Kajol Pradhan,&nbsp;Shailee Gaur,&nbsp;Amit Jain,&nbsp;Sushil Kumar","doi":"10.1002/cjce.25419","DOIUrl":"10.1002/cjce.25419","url":null,"abstract":"<p>This study investigated biosurfactant production by the bacterial strain of <i>P. aeruginosa gi</i> |KP 163922| for a free and immobilized cells system using waste engine oil (WEO) as a substrate. The polyurethane foam (PUF) cubes (1 cm × 1 cm × 1 cm) were used as carriers for the immobilization. The batch experiments were performed in Erlenmeyer flasks and monitored at every 24-h interval for both cell systems. The microbial population was counted using the plate count method, and the hydrocarbon degradation percentage was calculated to evaluate the bacterial activity. Surface tension was measured at regular intervals to ensure the presence of biosurfactants. The maximum reduction was 37 and 35 mN/m in a free and immobilized cells system. Immobilization of cells using PUF was found to be efficient in supporting bacterial growth, and after 48 h of incubation, the growth was 2.5 (±0.58) × 10<sup>11</sup> CFU/mL. The chemical characterization using Fourier transform infrared (FTIR) spectroscopy confirmed the obtained product as rhamnolipid. Crude biosurfactant yield was found to be maximum in the case of the immobilized system, which was approximately 18 g/L. Scanning electron micrographs (SEM) of the used PUF cubes showed the strong adherence of biofilm to the cube surface and the potential of its reuse in multiple cycles. Gas chromatography–mass spectrometry (GC–MS) analysis confirms that the immobilized strain of <i>P. aeruginosa</i> exhibited superior biodegradation capabilities compared to free cells. Specifically, it was capable of reducing the concentration of polyaromatic hydrocarbons and converting more significant aliphatic compounds into metabolic byproducts such as alkanes, alkenes, cycloalkanes, and carbonyl groups.</p>","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"102 11","pages":"3776-3786"},"PeriodicalIF":1.6,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cjce.25419","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141785685","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 review of emerging trends, challenges, and opportunities for utilization of metal nanoclusters in CO2 capturing 综述在二氧化碳捕获中利用金属纳米簇的新趋势、挑战和机遇
IF 1.6 4区 工程技术
Canadian Journal of Chemical Engineering Pub Date : 2024-07-19 DOI: 10.1002/cjce.25388
Atul Kapoor, Jaspreet Kaur Rajput
{"title":"A review of emerging trends, challenges, and opportunities for utilization of metal nanoclusters in CO2 capturing","authors":"Atul Kapoor,&nbsp;Jaspreet Kaur Rajput","doi":"10.1002/cjce.25388","DOIUrl":"10.1002/cjce.25388","url":null,"abstract":"<p>CO<sub>2</sub>, a predominant anthropogenic greenhouse gas, emerges as a primary factor in climate change due to the increasing utilization of fossil fuels, necessitating immediate efforts for the development and implementation of strategies like carbon capture and storage (CCS) to mitigate emissions, considering the ongoing dependence on unsustainable energy and transportation resources. The research endeavours to meet the critical requirement for effective CO<sub>2</sub> capture through the exploration of novel sorbent materials, with a specific focus on molecularly precise nanoclusters (NCs), aiming to enhance understanding of the catalytic mechanisms in CO<sub>2</sub> reduction and design stable, high-performance sorbents with controllable properties. Advancing the field, the study delves into the synthesis and examination of molecularly precise nanoclusters (NCs), an emerging domain in nanoscience, with a particular emphasis on well-defined nanoclusters like thiolate-protected Au, Ag, and Cu NCs. This strategy provides a distinctive foundation for attaining atomic-level understanding of electrocatalytic CO<sub>2</sub> reduction mechanisms, offering a more precise and customized synthesis to overcome challenges associated with polydispersity in conventional nanoparticles. The study highlights the exceptional catalytic activity of specific Au NCs like Au<sub>25</sub> in converting CO<sub>2</sub> to CO. It surpasses thermodynamic limits. The study also investigates the influence of surface properties, electrostatic, and steric stability on preventing nanocluster aggregation. It emphasizes the potential of molecularly precise nanoclusters as catalysts for CO<sub>2</sub> reduction. Additionally, it suggests avenues for advanced sorbent development with improved performance and stability.</p>","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"103 1","pages":"264-291"},"PeriodicalIF":1.6,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cjce.25388","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141743382","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 modified simplified SAFT EOS for VLE study of associating fluids 用于关联流体 VLE 研究的改进型简化 SAFT EOS
IF 1.6 4区 工程技术
Canadian Journal of Chemical Engineering Pub Date : 2024-07-17 DOI: 10.1002/cjce.25380
Mohammad Hossein Hadipanah, Seyed Hossein Mazloumi
{"title":"A modified simplified SAFT EOS for VLE study of associating fluids","authors":"Mohammad Hossein Hadipanah,&nbsp;Seyed Hossein Mazloumi","doi":"10.1002/cjce.25380","DOIUrl":"10.1002/cjce.25380","url":null,"abstract":"<p>In this study, the simplified version of statistical associating fluid theory (SAFT) equation of state (EOS) developed by Fu and Sandler is modified by replacing the dispersion term of this EOS with the Haghtalab–Mazloumi equation. This new SAFT-based EOS has three adjustable parameters for non-associating compounds and five adjustable parameters for associating compounds. The adjustable parameters of the new EOS are obtained by simultaneously fitting vapour pressures and liquid densities of pure substances. The new EOS shows better results in correlating vapour pressure and saturated liquid densities than SSAFT EOS for a selection of non-associating and associating substances. Then, by using proper mixing rules, the new EOS is extended for mixtures. Both self-associating and cross associating binary mixtures are used to test the capability of the new EOS in vapour–liquid equilibrium (VLE) calculations, and the results demonstrate good accuracy of the new EOS.</p>","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"103 1","pages":"468-484"},"PeriodicalIF":1.6,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141743381","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
Air processed, high open-circuit voltage indoor organic photovoltaic cells based on side chain modified N-annulated perylene diimides 基于侧链修饰 N-annulated 过氧化二亚胺的空气处理高开路电压室内有机光伏电池
IF 1.6 4区 工程技术
Canadian Journal of Chemical Engineering Pub Date : 2024-07-15 DOI: 10.1002/cjce.25402
Maryam Nazari, Edward Cieplechowicz, Gregory C. Welch
{"title":"Air processed, high open-circuit voltage indoor organic photovoltaic cells based on side chain modified N-annulated perylene diimides","authors":"Maryam Nazari,&nbsp;Edward Cieplechowicz,&nbsp;Gregory C. Welch","doi":"10.1002/cjce.25402","DOIUrl":"10.1002/cjce.25402","url":null,"abstract":"<p>To achieve high-performance indoor organic photovoltaics (OPVs), it is important to match the photoactive layer optical absorption with the light-source emission. This can be accomplished by developing organic photoactive materials that can efficiently absorb visible light and thus minimize energy losses. While indoor OPVs have achieved efficiencies above 33% under low light intensities, the power output is limited by low open circuit voltages (<i>V</i><sub>OC</sub>), often well below 1 V. In this study, we present a series of visible-light absorbing (energy gap &gt;1.90 eV) non-fullerene acceptors (NFAs) based on perylene diimide dimers, which have been systematically modified with side chains of varying polarity and steric bulk (trimethyl benzyl, ethyl adamantane, trialkoxyl phenyl, and oligo ethylene glycol). Our results show that the incorporation of sterically bulky side chains such as ethyl adamantane and trimethyl benzyl, blended with the common widegap polymer PTQ10, provides photoactive layers with absorption greater than 2.0 eV, and consequently, <i>V</i><sub>OC</sub>s higher than 1.2 V are achieved under AM 1.5 G illumination. Importantly, we found that the NFA with ethyl adamantane based side chains (tPDI<sub>2</sub>N-ethyl adamantane, compound 4) exhibited the best performance, with minimized energy loss. As a result, devices using PTQ10:tPDI<sub>2</sub>N-ethyl adamantane photoactive layers demonstrated excellent indoor efficiencies of over 16% and 18 μW cm<sup>−2</sup> power output under a 2700 K LED lamp at 300 lux, and showed better repeatability compared to other systems. The PTQ10:tPDI<sub>2</sub>N-ethyl adamantane based devices maintained a high <i>V</i><sub>OC</sub> (&gt;1.0 V) across a wide range of indoor lighting conditions, including 2700 K and 6500 K LED lamps. Overall, this work provides a sidechain engineering method to create NFAs for efficient indoor OPV devices.</p>","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"102 12","pages":"4120-4128"},"PeriodicalIF":1.6,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cjce.25402","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141647729","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
Application of uncertainty quantification techniques in the framework of process safety studies: Advanced dispersion simulations 在工艺安全研究框架内应用不确定性量化技术:高级分散模拟
IF 1.6 4区 工程技术
Canadian Journal of Chemical Engineering Pub Date : 2024-07-15 DOI: 10.1002/cjce.25410
Marco Bellegoni, Giulia Marroni, Alessandro Mariotti, Maria Vittoria Salvetti, Gabriele Landucci, Chiara Galletti
{"title":"Application of uncertainty quantification techniques in the framework of process safety studies: Advanced dispersion simulations","authors":"Marco Bellegoni,&nbsp;Giulia Marroni,&nbsp;Alessandro Mariotti,&nbsp;Maria Vittoria Salvetti,&nbsp;Gabriele Landucci,&nbsp;Chiara Galletti","doi":"10.1002/cjce.25410","DOIUrl":"10.1002/cjce.25410","url":null,"abstract":"<p>In the framework of process safety studies, consequence assessment of accidental scenarios is a crucial step affecting the eventual risk profile associated with the facilities under analysis. Conventional models used for consequence assessment are based on integral models, and may not be adequate to cope with the dynamic evolution of accidental scenarios and their three-dimensional features. On the other hand, consequence assessment models based on computational fluid dynamics (CFD) approaches are promising to cope with complex scenarios and environments, but setting the simulation introduces relevant uncertainties associated with both the input data, assumptions, and with the modelling of physical effects involved. In the present study, uncertainty quantification (UQ) techniques are applied to support advanced safety studies based on CFD simulations of hazardous gas dispersion. Firstly, the accidental scenarios are characterized by defining release scenarios and conditions and quantifying source terms using integral models. At the same time, input meteorological data are gathered. This enables the development of high-fidelity CFD simulations of gas dispersion based on different input sets and eventually the implementation of UQ techniques. The generalized polynomial chaos (gPC) expansion is employed to obtain hazardous gas concentration based on the variation of wind direction and speed. The present method is applied for the analysis of a real plant featuring a complex layout. The results show the advantages of the present approach by quantifying the influence of meteorological conditions and providing indications for supporting the development of protection systems and emergency measures.</p>","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"102 12","pages":"4072-4084"},"PeriodicalIF":1.6,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141648266","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
Transesterification reactions as a means to produce esters: A critical review 酯化反应是生产酯的一种方法:重要综述
IF 1.6 4区 工程技术
Canadian Journal of Chemical Engineering Pub Date : 2024-07-14 DOI: 10.1002/cjce.25414
Reshma R. Devale, Yogesh S. Mahajan
{"title":"Transesterification reactions as a means to produce esters: A critical review","authors":"Reshma R. Devale,&nbsp;Yogesh S. Mahajan","doi":"10.1002/cjce.25414","DOIUrl":"10.1002/cjce.25414","url":null,"abstract":"<p>Esters are important chemicals used in fine and bulk chemical industry with numerous applications: solvents, paints, varnishes, dyes, and cosmetics. Ester formation is dominated mainly by Fischer esterification and transesterification. Fischer reaction is generally used for ester production, but in certain cases, transesterification can be used with advantage. It is useful when the acid is less soluble in the alcohol or in the solvent used, thus forming two layers. Water formation creates purification problems during esterification reactions due to azeotrope formation and transesterification can be useful in such cases. Commercially, cheaply available methyl and ethyl esters can be conveniently used as raw materials for value added ester production by transesterification. Transesterification is also useful when the parent acids are highly reactive and pose difficulty in separation. Transesterifications are slow reactions and a catalyst is used: acids and bases, ion exchange resins, zeolites, and clays. Homogeneous catalysts were used in the past which are now replaced by their heterogeneous counterparts. Heterogeneous catalysts offer added advantages like reusability, lesser corrosion, and ease of separation. Transesterification can be commercially used to produce a number of esters of industrial importance like acrylics and biodiesel. This review considers all these aspects in considerable detail. A large literature set was scanned and its judicious extract is presented.</p>","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"102 11","pages":"3787-3802"},"PeriodicalIF":1.6,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141650272","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
Kinetics of cashew apple drying through mechanistic models and analysis of the effects of drying conditions on the retention of bioactive compounds 通过机理模型分析腰果苹果干燥动力学以及干燥条件对生物活性化合物保留的影响
IF 1.6 4区 工程技术
Canadian Journal of Chemical Engineering Pub Date : 2024-07-14 DOI: 10.1002/cjce.25395
Vikramaditya R. Shirsat, Prakash D. Vaidya, Vishwanath H. Dalvi, Rekha S. Singhal, Anil K. Kelkar, Jyeshtharaj B. Joshi
{"title":"Kinetics of cashew apple drying through mechanistic models and analysis of the effects of drying conditions on the retention of bioactive compounds","authors":"Vikramaditya R. Shirsat,&nbsp;Prakash D. Vaidya,&nbsp;Vishwanath H. Dalvi,&nbsp;Rekha S. Singhal,&nbsp;Anil K. Kelkar,&nbsp;Jyeshtharaj B. Joshi","doi":"10.1002/cjce.25395","DOIUrl":"10.1002/cjce.25395","url":null,"abstract":"<p>Global cashew nut production is nearly 4 million tons per year, valued at 7 billion US dollars. Remarkably, almost the entire cashew apple crop, amounting to 20 million tons annually, goes to waste. However, the cashew apple contains valuable nutraceutical compounds, including tannins, polyphenols, and carotenoids, estimated to be worth 150 million US dollars annually. Due to the highly perishable nature of cashew apples, degradation is a significant issue. In response, the current work has established drying as an effective preservation technique for these bioactive components. The effect of drying temperature on bioactive compounds has been thoroughly investigated. The non-random two liquid (NRTL) activity coefficient model effectively captures the thermodynamics of the drying process. To facilitate the selection and design of drying equipment, two mechanistic mass transfer models were developed. The first model employs the Maxwell-Stefan framework to account for internal diffusion, with external mass transfer resistance appearing as a boundary condition. While this model works well for products like grapes, it proved inadequate for explaining the drying behaviour of cashew apples. Consequently, a second model was developed, postulating rapid moisture transport by capillary action within the cashew apple. This model effectively captures the effects of a wide range of operating conditions, using only external mass transfer resistance as the tuneable kinetic parameter. This mechanistic model is more suitable for dryer design compared to conventional phenomenological models like the logarithmic model and the two-term exponential model.</p>","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"102 11","pages":"3817-3831"},"PeriodicalIF":1.6,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141650253","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
Benchmarking the potential of a resistant green hydrocolloid for chemical enhanced oil recovery from sandstone reservoirs 抗性绿色水胶体在砂岩油藏化学强化采油方面的潜力基准研究
IF 1.6 4区 工程技术
Canadian Journal of Chemical Engineering Pub Date : 2024-07-11 DOI: 10.1002/cjce.25400
Iman Nowrouzi, Amir H. Mohammadi, Abbas Khaksar Manshad
{"title":"Benchmarking the potential of a resistant green hydrocolloid for chemical enhanced oil recovery from sandstone reservoirs","authors":"Iman Nowrouzi,&nbsp;Amir H. Mohammadi,&nbsp;Abbas Khaksar Manshad","doi":"10.1002/cjce.25400","DOIUrl":"10.1002/cjce.25400","url":null,"abstract":"<p>Polymer injection into oil reservoirs stands as a primary technique for enhanced oil recovery (EOR), employing either natural or synthetic polymers that dissolve in water. Proper performance in salinity and reservoir temperature creates a limitation to replace natural material with common chemicals and this has led researchers to try to identify new material for this application. Continuing the efforts and overcoming the challenge, this research introduces and examines a high-performance natural polymer extracted from garden cress seeds for this application. Several experiments were planned and executed based on the existing EOR standards and literature. Comprehensive analyses and viscosity measurements were performed to identify the behaviour of solutions and the effects of concentration, shear rate, salinity, and temperature. Essential tests such as wettability and polymer adsorption were also done by contact angle measurement and flooding into a sandstone plug, respectively. The produced polymer was able to effectively maintain the viscosification properties at temperatures up to 95°C. Similarly, increasing the salinity up to 140,000 ppm did not affect its efficiency and the viscosity value remained in the useful range. The viscosity of the mature solutions at 35°C after 30 h at concentrations of 200, 400, 600, 800, 1000, and 1200 ppm was 8.61, 18.59, 31.27, 65.41, 95.38, and 149.75 mPa, respectively. At 1000 ppm and temperatures of 35, 55, 75, and 95°C, the viscosity was 95.38, 90.57, 86.73, and 84.72 mPa · s, respectively. At concentrations of 600, 800, and 1000 ppm, the wettability altered to intermediate-wet, while at 1200 ppm, altered to water-wet. Polymer injection caused an increase in recovery equal to 18.6%. The water cut increased with a little delay in the initial volumes of water injection at a high rate and reached its maximum. Then after the injection of 0.3 PV of polymer, there was a sharp and continuous drop until reaching 35% of the production fluid volume.</p>","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"103 1","pages":"230-250"},"PeriodicalIF":1.6,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cjce.25400","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141611836","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 simultaneous study on desulphurization and denitrogenation using acid-treated activated alumina: Multi-component adsorption systems 利用酸处理活性氧化铝同时进行脱硫和脱氮研究:多组分吸附系统
IF 1.6 4区 工程技术
Canadian Journal of Chemical Engineering Pub Date : 2024-07-11 DOI: 10.1002/cjce.25392
Naushad Khan, G. K. V. Rami Reddy, Sandeep Kumar Thaligari, Vimal Chandra Srivastava, Raj Kumar Singh, Anuj Rawat, Paritosh Mohanty
{"title":"A simultaneous study on desulphurization and denitrogenation using acid-treated activated alumina: Multi-component adsorption systems","authors":"Naushad Khan,&nbsp;G. K. V. Rami Reddy,&nbsp;Sandeep Kumar Thaligari,&nbsp;Vimal Chandra Srivastava,&nbsp;Raj Kumar Singh,&nbsp;Anuj Rawat,&nbsp;Paritosh Mohanty","doi":"10.1002/cjce.25392","DOIUrl":"10.1002/cjce.25392","url":null,"abstract":"<p>In this study, sulphuric acid-treated activated alumina (AA) was used for sulphur and nitrogen removal from model fuel in a batch adsorption study. Dibenzothiophene (DBT), a sulphur compound, and quinoline, a nitrogen compound dissolved in isooctane, were taken as a model liquid fuel. Detailed characterization of the adsorbent, such as scanning electron microscopy (SEM), thermogravimetric analysis-differential thermal analysis (TGA-DTA), Fourier transform infrared spectroscopy (FTIR), Brunauer–Emmett–Teller (BET), and X-ray diffraction (XRD), was performed to understand the DBT and quinoline adsorption mechanism onto AA adsorbent. Sulphur and nitrogen removal efficiencies were found to be 64% and 91%, respectively. Mono-component adsorption isotherm was studied by using different models such as Langmuir, Freundlich, and Redlich-Peterson (R-P) isotherms. The R-P isotherm model well-predicted the individual equilibrium data for both nitrogen and sulphur from the liquid fuel. Binary-component adsorption studies were performed by mixing both DBT and quinoline in isooctane. Binary-equilibrium data were modelled by multi-component models such as modified Langmuir isotherm, non-modified Langmuir, extended Langmuir, extended Freundlich isotherm, Sheindorf-Rebuhn-Sheintuch (SRS), non-modified R-P model, and modified R-P model. The extended Freundlich (E-F) adsorption isotherm model was found to best fit the binary equilibrium system.</p>","PeriodicalId":9400,"journal":{"name":"Canadian Journal of Chemical Engineering","volume":"103 1","pages":"385-395"},"PeriodicalIF":1.6,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141611833","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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信