Chemical Engineering and Processing - Process Intensification最新文献

{"title":"An Eco-benign synthesis of multifunctional TPP-Co3O4 NPs by polyphenol rich tea infusion extracted by microwave method with enhanced biomedical applications","authors":"Muhammad Saleem ,&nbsp;Ehab A. Abdelrahman ,&nbsp;Zainab Hassan Alnakhli ,&nbsp;Mohib Ullah ,&nbsp;Syed Badshah ,&nbsp;Noura Al-Dayan ,&nbsp;Mortaga M. Abou-Krisha ,&nbsp;Abdulrahman G. Alhamzani ,&nbsp;Dilfaraz Khan ,&nbsp;Khalil ur Rehman","doi":"10.1016/j.cep.2025.110329","DOIUrl":"10.1016/j.cep.2025.110329","url":null,"abstract":"<div><div>Green tea is widely known for its health benefits and is a valuable source of polyphenols that can be used for various physiological activities. A highly effective method involving microwave assistance was employed for polyphenol extraction from green tea leaves. The response surface methodology (RSM) enhanced the extraction parameters to produce a polyphenol-rich tea infusion to synthesize TPP-Co₃O₄ NPs. To look into the effect of different factors such as MW intensity (A), temperature (B), time (C), and solvent/tea ratio (D), we conducted single-factor experiments. We applied RSM using a four-factor, three-level Box-Behnken design (BBD) to optimize TPC yield. The optimal conditions for TPC contents were as follows: <em>A</em> = 600 W, <em>B</em> = 75 °C, <em>C</em> = 400 <em>sec</em>, and <em>D</em> = 30 mL/g, resulting in TPC contents of 51.21 mg GAE/g tea. The polyphenol-rich tea infusion was subjected to prepare cobalt oxide nanoparticles (TPP-Co₃O₄ NPs). Several physicochemical techniques were used to investigate the synthesized nanoparticles. TPP-Co₃O₄ NPs exhibited effective inhibition potential against gram positive <em>Staphylococus aureaus</em> (<em>S. aureaus</em>) and gram negative <em>Escherchia coli</em> (<em>Escherichia coli</em>) bacteria. Furthermore, TPP-Co₃O₄ NPs exhibited significant antioxidant potential, achieving an 88 % reduction in DPPH free radicals. TPP-Co₃O₄ NPs' enormous surface area and negligible size could explain these remarkable biological activities.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"214 ","pages":"Article 110329"},"PeriodicalIF":3.8,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143917591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical investigation on the combustion flow in a radial hydrogen/air staged swirl burner","authors":"Zhuoxiong Zeng ,&nbsp;Hong Liu","doi":"10.1016/j.cep.2025.110331","DOIUrl":"10.1016/j.cep.2025.110331","url":null,"abstract":"<div><div>The radial hydrogen/air swirl staged combustion flow characteristics in a micro gas turbine combustor are analyzed numerically. The results show that for radial air staged combustion, the central recirculation area is expanded, the uniformity of the outlet temperature distribution is significantly improved, outlet NO emission increases. When the radial air staged ratio is 0.5 %, outlet NO emission is 35.46 ppm, which reduces by 15.73 % compared to that of unstaged case. For radial fuel staged combustion, the outlet average temperature drops, but the distribution of outlet temperature becomes more and more nonuniform, outlet temperature distribution factor (OTDF) is about 2.38 times of that of unstaged case when the radial fuel staging ratio is 2 %. Outlet NO emission drops firstly and then rises with the increase of the radial fuel staging ratio. When the radial fuel staged ratio is 3 %, outlet NO emission is 29.3 ppm, which is 30.37 % less than that of unstaged case.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"214 ","pages":"Article 110331"},"PeriodicalIF":3.8,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143882348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental study, mechanism, and process optimization of hydrodynamic cavitation-enhanced green synthesis of nano ZnO using Eupatorium Adenophorum","authors":"Jinyuan Guo ,&nbsp;Honglei Yu ,&nbsp;Dexi Wang ,&nbsp;Gong Chen ,&nbsp;Lin Fan","doi":"10.1016/j.cep.2025.110330","DOIUrl":"10.1016/j.cep.2025.110330","url":null,"abstract":"<div><div>The green synthesis method is considered an ideal approach for the preparation of nano zinc oxide due to its environmentally friendly and efficient characteristics. However, its industrial application remains limited, primarily due to the low mass and heat transfer efficiency of traditional reactors, which leads to agglomeration issues. In this study, an innovative strategy was implemented by introducing hydrodynamic cavitation technology, using the invasive species Eupatorium adenophorum (commonly known as Chinese crofton weed) and zinc acetate as raw materials. By enhancing microscopic mixing efficiency, the synthesis efficiency and product performance were significantly improved, and the mechanism of cavitation enhancement in green synthesis was revealed. Through systematic experimental investigations, the effects of solvent systems, pH levels, reaction conditions, and cavitation parameters were thoroughly analyzed. Using response surface methodology optimization, the best synthesis conditions were determined: a mixed water-ethanol solvent (pH=11), reaction temperature of 70 °C, reaction time of 120 min, leaf extract concentration of 19.638 %, Zn(CH₃COO)₂·2H₂O concentration of 1.471 mol/L, an inlet angle of 60°, and a cavitation number of 0.342. After calcination at 500 °C for 2 h, rod-shaped Nano ZnO with a specific surface area of 60.613 m²/g and a reaction yield of 94.799 % was obtained. Compared to traditional methods, hydrodynamic cavitation technology resulted in a 1.5-fold improvement in specific surface area, a 16.41 % increase in reaction yield, a 0.75-fold reduction in particle size, and a more uniform particle size distribution, revealing the synergistic effect of leaf extract concentration and cavitation parameters as a critical factor in determining product performance. This study provides an effective enhancement strategy for the industrial application of green synthesis technologies.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"214 ","pages":"Article 110330"},"PeriodicalIF":3.8,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143894478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing CO2 desorption in MEA solvent using low-frequency ultrasound: A flow-through reactor study","authors":"Mengying Li,&nbsp;Roman Skachkov,&nbsp;Shahnawaz Molla","doi":"10.1016/j.cep.2025.110328","DOIUrl":"10.1016/j.cep.2025.110328","url":null,"abstract":"<div><div>This study explores the efficacy of ultrasound (US)-assisted CO₂ desorption in a 30 wt. % monoethanolamine (MEA) solvent using a flow-through reactor. The tests demonstrated that the application of low-frequency (20 kHz) ultrasound accelerates the desorption process and reduces the desorption time required to release the same amount of CO₂ for a given solvent compared to desorption by only heating the sample. This acceleration is attributed to the direct energy input into the solvent as well as the enhancement of heat and mass transfer caused by acoustic streaming and acoustic cavitation. The use of flow-through reactor systems suggests that the results can be scaled up to larger-scale processing. Notable improvements were observed at higher desorption temperatures, with sonication at 80 °C and above reducing CO₂ loading in MEA below its thermodynamic equilibrium by 16 %. This allows CO₂ release at 100 °C, compared to 120 °C with heating alone. The two-peak CO₂ release pattern under sonication — initially from thermolysis and later from enhanced mass transfer — highlights the benefits of acoustic effects such as microstreams, vortices, and rectified diffusion. This method may also mitigate solvent degradation at high temperatures. Compared to conventional heating, applying sonication in a 30 wt. % MEA solvent consumes much less energy (172.65 kJ/mol CO₂ compared to 343.85 kJ/mol CO₂) to release the same amount of CO₂ at similar desorption temperatures. This demonstrates that the application of low-frequency ultrasound can significantly decrease energy consumption during CO₂ desorption. This method may result in decreased operational costs, provided affordable power is accessible for carbon capture facilities, especially via US-assisted desorption.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"214 ","pages":"Article 110328"},"PeriodicalIF":3.8,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143894477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical investigations of liquid–liquid extraction through a coiled tube integrated with an extraction outlet","authors":"Almoatasem-Bellah K. Abdelnaeem ,&nbsp;Dominique Thévenin ,&nbsp;Katharina Zähringer ,&nbsp;Abouelmagd Abdelsamie ,&nbsp;Michael Mansour","doi":"10.1016/j.cep.2025.110310","DOIUrl":"10.1016/j.cep.2025.110310","url":null,"abstract":"<div><div>This study numerically investigates the extraction of two immiscible liquids through coiled tubes integrated with an extraction outlet. Assuming a fully mixed initial state, representing the worst-case scenario, the research explores optimal conditions for achieving pure extraction of each liquid through different outlets. Two laminar Reynolds numbers of 225 and 563, along with seven different outlet split ratios, were analyzed for horizontal-axis coiled tubes. The effects of geometrical parameters and flow conditions on extraction efficiency were examined. For an inlet amine volume fraction of 50%, the results indicate that optimal extraction occurs at a split ratio of 0.5, with enhanced performance at Re = 563 compared to Re = 225. Sharp-edged, constant-diameter extraction tubes outperformed rounded and nozzle-type configurations while reducing the extraction tube diameter diminished the efficiency. Furthermore, an extraction at a coil angle of 675° (2 turns minus 45°) provided better efficiency compared to 765° (2 turns plus 45°). It is therefore recommended to operate near Re = 563, utilize a straight extraction tube with the same diameter as the coiled tube, and employ a sharp-edged connection at a coil angle of 675°. The extraction split ratio should align with the inlet rate of the lighter phase.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"213 ","pages":"Article 110310"},"PeriodicalIF":3.8,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143868059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of lipophilic particles on oil-water separation efficiency in hydrocyclones","authors":"Lixin Zhao (赵立新) ,&nbsp;Lina Wang (王丽娜) ,&nbsp;Shuang Zhang (张爽) ,&nbsp;Zhaoyang Guo (郭昭阳) ,&nbsp;Mengmei Lu (卢梦媚)","doi":"10.1016/j.cep.2025.110327","DOIUrl":"10.1016/j.cep.2025.110327","url":null,"abstract":"<div><div>Currently, oilfields have generally entered the high water content extraction period. The ASP (alkali-surfactant-polymer) flooding technology is widely used; however, the presence of polymer in the extracted fluid makes subsequent processing difficult, and it is challenging to achieve efficient oil-water separation using existing hydrocyclone separation technology alone. Therefore, in this study, lipophilic particles were added to the oil-water mixture to be separated, in order to adsorb and transport oil droplets, thereby improving oil-water separation efficiency. An experimental research program was proposed to treat an oil-water mixture using activated carbon as an adsorbent. The effects of parameters such as particle dosage, oil concentration in the mixture, and adsorption time on the adsorption effectiveness of activated carbon were investigated. Comparative analyses were conducted on particle transport trajectories and separation performance between conventional hydrocyclone and lipophilic particle-coupled hydrocyclone. The results show that the addition of lipophilic particles can effectively adsorb and transport oil droplets, significantly improving the oil-water separation efficiency, with the separation efficiency reaching up to 99.97 %.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"214 ","pages":"Article 110327"},"PeriodicalIF":3.8,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143895095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Catalyst-integrated adsorption for continuous purification of molasses toward efficient 5-hydroxymethylfurfural production","authors":"Nattee Akkarawatkhoosith ,&nbsp;Watsamon Chuphueak ,&nbsp;Natnaree Waiyasusri ,&nbsp;Pimchanok Phuthongking ,&nbsp;Attasak Jaree ,&nbsp;Tiprawee Tongtummachat","doi":"10.1016/j.cep.2025.110324","DOIUrl":"10.1016/j.cep.2025.110324","url":null,"abstract":"<div><div>This study presents an efficient continuous purification process for molasses, unlocking its potential as a sustainable feedstock for 5-hydroxymethylfurfural (5-HMF) production. The direct utilization of molasses has been limited by impurities that impair production efficiency. A novel purification strategy employing sequential adsorption with Amberlyst 21 (A21) and Amberlyst 15 (A15) achieves a remarkable 97 % impurity removal with minimal sugar loss (1.7 %), significantly outperforming traditional methods (2.8–16.4 % sugar loss). Optimal adsorption conditions were identified as 20 min at 30 °C for A21 and 5 min at 30 °C for A15. The purified molasses was subsequently used for continuous 5-HMF production. These adsorbents demonstrated dual functionality as catalysts, reducing the need for additional materials and enhancing the economic viability of the process. Under optimized conditions, including a molasses concentration of 30 g/L, a reaction time of 42 min, and an organic-to-aqueous volumetric ratio of 0.9:1, the 5-HMF yield of 18.6 % and selectivity of 53.8 % were achieved, comparable to those obtained using synthetic molasses. While these findings demonstrate significant progress, catalyst efficiency remains a critical bottleneck in further optimizing 5-HMF yields. Future research should focus on advancing catalyst performance to further enhance process efficiency.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"214 ","pages":"Article 110324"},"PeriodicalIF":3.8,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143886634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Process intensification and economic evaluation of adiponitrile production based on hybrid modeling","authors":"Wenwen Cong,&nbsp;Xiaolin Hou,&nbsp;Rui Xiao,&nbsp;Jiaojiao Zhang,&nbsp;Yuying Zhang,&nbsp;Siliang Jiao","doi":"10.1016/j.cep.2025.110325","DOIUrl":"10.1016/j.cep.2025.110325","url":null,"abstract":"<div><div>Adiponitrile (ADN) is a crucial chemical used to produce Nylon 66, with potential applications in civilian clothing, specialized equipment, and new energy vehicles. This paper outlines a method for producing adiponitrile from 1,3-butadiene hydrocyanation and enhances it using process simulation and machine learning (ML). The system is optimized for energy savings and assessed economically. An artificial neural network (ANN) model is developed to predict ADN product molar flow and system energy consumption. The Non-dominated Sorting Genetic Algorithm II (NSGA-II) algorithm is used to optimize two goals: increasing ADN yield and reducing system energy consumption. The prediction results show that the coefficient of determination (<em>R</em>²) for both system energy consumption and ADN product flow is greater than 0.989, with the Mean Absolute Percentage Error (<em>MAPE</em>) value less than 0.01. The optimization results indicate a 2.31 % reduction in system energy consumption and a 1.85 % increase in ADN product flow.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"213 ","pages":"Article 110325"},"PeriodicalIF":3.8,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143855251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An open-source framework for the multi-objective optimization of passive micromixer based on RSM and MOEA/D","authors":"Zhen Li ,&nbsp;Jiarun Lou ,&nbsp;Weiwei Li ,&nbsp;Renhao Wang ,&nbsp;Quanliang Dong ,&nbsp;Xiangyao Xue ,&nbsp;Shuai Shao","doi":"10.1016/j.cep.2025.110316","DOIUrl":"10.1016/j.cep.2025.110316","url":null,"abstract":"<div><div>Balancing the mixing index, pressure drop and mixing energy consumption is crucial for enhancing the performance of passive micromixers. In this paper, a T-shaped micromixer scheme integrating cylindrical obstacles and contraction-expansion parts is proposed and the geometric parameters are studied in order to achieve multi-objective optimization. The geometry of the micromixer is optimized by selecting three design variables (<em>L₁, L₂</em> and <em>D_cy</em>), where <em>L₁</em> and <em>L₂</em> are used to adjust the changes in the cross section of the flow channel and <em>D_cy</em> controls the diameter of the cylindrical obstacle. For different Reynolds numbers (0.1 and 100), COMSOL simulation and Box-Behnken experiment design are used to evaluate the effects of each design variable on the mixing evaluation indicators. The findings indicate that <em>L₂</em> exerts the most substantial influence on the performance of the micromixer. It can effectively modify the width of the flow channel, thereby optimizing the fluid velocity and concentration gradient, and consequently having a significant impact on mixing evaluation indicators. Regarding multi-objective optimization, the decomposition based multi-objective evolutionary algorithm (MOEA/D) is used to construct the Pareto optimal solution. This algorithm offers a balanced scheme between different mixing evaluation indicators. The experimental results demonstrate that the optimized micromixer can not only enhances the mixing index but also remarkably reduces the pressure drop. It can achieve a complete mixing effect while reducing the pressure drop by nearly 41% compared to the passive micromixer using two-layer serpentine crossing channels when <em>Re</em> = 100, which is especially suitable for microfluidic applications such as biochemical detection. Furthermore, this study makes the MATLAB program source code used in the calculation process publicly available, which provides a strong support for the subsequent research and application.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"213 ","pages":"Article 110316"},"PeriodicalIF":3.8,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143860577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimization and Control of Continuous Biodiesel Production Processes: A Review","authors":"Dr. Aparna Gautam","doi":"10.1016/j.cep.2025.110323","DOIUrl":"10.1016/j.cep.2025.110323","url":null,"abstract":"<div><div>Biodiesel is an eco-friendly, low-toxicity biofuel that reduces greenhouse gas emissions, making it a promising alternative to fossil fuels. Biodiesel production requires the transesterification of lipids with alcohol, a process heavily dependent on efficient catalyst and optimized reactor design. Batch-type reactors present challenges such as extended residence time, high operating expenses, significant energy consumption with limited production efficiency. To address these issues, scientists are currently concentrating on continuous flow biodiesel production methods.</div><div>Current studies on biodiesel production have concentrated on utilizing process intensification methods to tackle major challenges. These methods involves novel reactor configurations and combined reaction/separation procedure that boost the reaction speeds, decrease the alcohol-to-oil ratio, <em>in-situ</em> product separation, and minimize energy usage. With the help of these advancements, continuous production in scalable units has become feasible, leading to the successful commercialization of various technologies. Building on these advancements, this review examines two decades of research on continuous biodiesel production, exploring process simulation, optimization, and control aspects. It further delves into strategies for process intensification, scale-up methodologies, and techno-economic analysis, offering a comprehensive understanding of the field's progress and future potential.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"213 ","pages":"Article 110323"},"PeriodicalIF":3.8,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143860579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}