Chemical Engineering and Processing - Process Intensification最新文献_第4页

Intensified wastewater treatment using In2S3 on activated carbon derived from waste tire: Peroxydisulfate activation via visible-light, characterization, composition, pH influence, and mechanism 用In2S3处理废轮胎活性炭强化废水：可见光活化过硫酸氢盐、表征、组成、pH值影响及机理

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2025-05-03 DOI: 10.1016/j.cep.2025.110352

Salwan Obaid Waheed Khafaji , Ali B. M․ Ali , Abdul Amir H․ Kadhum , M.A. Diab , Heba A. El-Sabban , Doniyor Jumanazarov , Farruh Atamurotov , Abdulrahman A. Almehizia

{"title":"Intensified wastewater treatment using In2S3 on activated carbon derived from waste tire: Peroxydisulfate activation via visible-light, characterization, composition, pH influence, and mechanism","authors":"Salwan Obaid Waheed Khafaji , Ali B. M․ Ali , Abdul Amir H․ Kadhum , M.A. Diab , Heba A. El-Sabban , Doniyor Jumanazarov , Farruh Atamurotov , Abdulrahman A. Almehizia","doi":"10.1016/j.cep.2025.110352","DOIUrl":"10.1016/j.cep.2025.110352","url":null,"abstract":"<div><div>In<sub>2</sub>S<sub>3</sub> exhibits exceptional photocatalytic properties, including high charge carrier mobility and strong light absorption, enhancing its efficiency in solar energy conversion. In this study, activated carbon (AC) derived photocatalyst with 20, 30, and 40 wt.% of In<sub>2</sub>S<sub>3</sub> was prepared in order to investigate its performance with peroxydisulfate (PDS) in ciprofloxacin (CPX) degradation. The effect of the pH (2.5–8.5) was also evaluated. The composite with 30 wt.% In<sub>2</sub>S<sub>3</sub> in the presence of PDS showed the best performance, and characterized by XRD, FE-SEM, BET, UV–Vis, Photocurrent, PL, ERS, and Mott-schottky analyses. PDS enhanced the performance of photodegradation of CPX from 60.8% to 99.7%. The optimal conditions for CPX degradation were determined to be at a pH of 5.5. Additionally, scavenging tests highlighted the notable role of superoxide (<sup>•</sup>O<sub>2</sub><sup>-</sup>), hydroxyl (<sup>•</sup>OH), sulfate (<sup>•</sup>SO<sub>4</sub><sup>⁻</sup>), and electrons (e<sup>-</sup>) in the photodegradation process of CPX.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"214 ","pages":"Article 110352"},"PeriodicalIF":3.8,"publicationDate":"2025-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143917590","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}

引用次数: 0

Ammonia removal and recovery from landfill leachate via intensified stripping and absorption using a high-performance rotating reactor 利用高性能旋转反应器强化剥离和吸收处理垃圾渗滤液中的氨

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2025-05-02 DOI: 10.1016/j.cep.2025.110348

Viet M. Trinh , Thao Phuong Nguyen , Doan Thi Pham , Hanh Thi Duong , Manh Van Do , Long Thanh Ngo , Tuyen Van Trinh

{"title":"Ammonia removal and recovery from landfill leachate via intensified stripping and absorption using a high-performance rotating reactor","authors":"Viet M. Trinh , Thao Phuong Nguyen , Doan Thi Pham , Hanh Thi Duong , Manh Van Do , Long Thanh Ngo , Tuyen Van Trinh","doi":"10.1016/j.cep.2025.110348","DOIUrl":"10.1016/j.cep.2025.110348","url":null,"abstract":"<div><div>The increasing global demand for nitrogen, driven by growing food production, highlights the need for efficient ammonia recovery from wastewater. Inadequate treatment of landfill leachate not only causes environmental issues but also results in the loss of valuable nitrogen. This study investigates the use of a High-Performance Rotating Reactor (HP2R) combined with a scrubber unit for ammonia removal and recovery from landfill leachate. The effect of gas flow rate (Q<sub>G</sub>), leachate flow rate (Q<sub>L</sub>), and leachate temperature (T<sub>Li</sub>) on the ammonia removal (<em>η<sub>removal</sub>)</em> and recovery efficiency (<em>η<sub>recover</sub>)</em> at a constant rotating speed of 900 rpm was evaluated. The total leachate recirculation time to achieve 95 % of <em>η<sub>removal</sub></em> was from 1.5 to 4 h, corresponding to the variation of K<sub>L</sub>a from 0.74 to 2.48 h<sup>-1</sup>. The <em>η<sub>recover</sub></em> fluctuated from 67.1% to 84.8 %, influenced by ammonia concentration in the gas phase. The optimal operational condition to achieve 95 % of <em>η<sub>removal</sub></em> and 80 % of <em>η<sub>recover</sub></em> was defined at Q<sub>G</sub> of 200 L/min, Q<sub>L</sub> of 0.2 L/min, rotational speed of 900 rpm, and T<sub>Li</sub> of 30–40 °C. High ammonia concentrations (1930–3360 mg/L) solution were recovered, presenting a potential alternative source for ammonia production.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"214 ","pages":"Article 110348"},"PeriodicalIF":3.8,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143924470","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}

引用次数: 0

Mechanism study on the influence of non-thermal plasma on the oxidation performance of Pt catalyst during DOC regeneration DOC再生过程中非热等离子体对Pt催化剂氧化性能影响的机理研究

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2025-05-01 DOI: 10.1016/j.cep.2025.110333

Yunxi Shi , Zhengping Ding , Yong Luo , Yankang Huang , Kaiqi Zhuang , Zhenguo Li , Yixi Cai , Xiaohua Li , Jun Wang , Yongsheng Fan

{"title":"Mechanism study on the influence of non-thermal plasma on the oxidation performance of Pt catalyst during DOC regeneration","authors":"Yunxi Shi , Zhengping Ding , Yong Luo , Yankang Huang , Kaiqi Zhuang , Zhenguo Li , Yixi Cai , Xiaohua Li , Jun Wang , Yongsheng Fan","doi":"10.1016/j.cep.2025.110333","DOIUrl":"10.1016/j.cep.2025.110333","url":null,"abstract":"<div><div>The aging deactivation of noble metal catalysts is a critical challenge for diesel oxidation catalysts (DOC). This study investigated the regeneration of aging DOC using non-thermal plasma (NTP) technology. Combined with catalytic oxidation performance testing of platinum (Pt) catalysts on DOC and analyses through EDS, BET, O2-TPD, TEM, and XPS, the effects of NTP regeneration were evaluated. NTP effectively degraded carbon deposits within the DOC at temperatures below 210 °C, lower than the DOC’s maximum operating temperature and the Pt catalyst’s deactivation temperature. During regeneration, BET area increased by 39.06 %, average particle size decreased by 28.5 %, relative carbon content in the Pt catalyst dropped by 60.9 %, and relative oxygen content increased. NTP promoted deep oxidation of Pt, forming oxide layers of PtO (0.22 nm) and PtO2 (0.11 nm), which enhanced catalytic efficiency for CO oxidation. NTP successfully regenerated DOC, restored performance lost due to aging deactivation, and improved the low-temperature activity, stability, and high-temperature resistance of Pt catalysts.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"214 ","pages":"Article 110333"},"PeriodicalIF":3.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143934919","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}

引用次数: 0

Sustainable Refining: Enhancing Energy Efficiency in Crude Distillation Processes 可持续精炼：提高原油蒸馏过程的能源效率

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2025-05-01 DOI: 10.1016/j.cep.2025.110326

Mohamed Rafeek , Mohamed Elwardany , A.M. Nassib , M. Salem Ahmed , Hany A. Mohamed , MR. Abdelaal

{"title":"Sustainable Refining: Enhancing Energy Efficiency in Crude Distillation Processes","authors":"Mohamed Rafeek , Mohamed Elwardany , A.M. Nassib , M. Salem Ahmed , Hany A. Mohamed , MR. Abdelaal","doi":"10.1016/j.cep.2025.110326","DOIUrl":"10.1016/j.cep.2025.110326","url":null,"abstract":"<div><div>Crude oil distillation is a crucial separation process in the petroleum refining industry, where crude oil is fractionated into various components based on their boiling points. This energy-intensive industrial process significantly contributes to global energy consumption and greenhouse gas emissions. Given the magnitude and environmental implications of crude distillation operations, there is an urgent need to analyze energy usage patterns rigorously and identify opportunities for enhancing efficiency. This review explores the extensive efforts made by researchers to develop advanced models and techniques for the techno-economic evaluation of crude distillation systems. It begins by highlighting the considerable energy demands and emissions associated with conventional crude distillation units (CDUs). Emphasizing the necessity of comprehensive energy analysis, the paper discusses how optimization strategies can improve CDU operations and enable retrofits aimed at reducing both energy consumption and environmental impacts. Various modeling approaches are examined, including rigorous process simulations using tools like Aspen HYSYS and innovative exergy-based analyses, which provide deeper insights into the thermodynamic principles and operational factors influencing CDU performance. The review focuses on key areas such as distillation tower configurations, operating conditions, and heat exchanger network designs, all aimed at identifying energy-efficient modifications. Additionally, the paper discusses advancements in process intensification techniques, including Dividing Wall Columns, Hybrid Distillation, and reactive distillation. These methods not only enhance separation efficiency but also contribute to significant reductions in energy usage. The findings from numerous case studies are synthesized, demonstrating their effectiveness in improving overall efficiency.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"214 ","pages":"Article 110326"},"PeriodicalIF":3.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143913008","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}

引用次数: 0

Research on dehydration mechanisms and characteristics of shale oil under high-frequency electric field treatment 高频电场作用下页岩油脱水机理及特性研究

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2025-05-01 DOI: 10.1016/j.cep.2025.110335

Yuling Lyu , Yueyang Wu , Miqi Niu , Ce Wang , Tianxu Ye

{"title":"Research on dehydration mechanisms and characteristics of shale oil under high-frequency electric field treatment","authors":"Yuling Lyu , Yueyang Wu , Miqi Niu , Ce Wang , Tianxu Ye","doi":"10.1016/j.cep.2025.110335","DOIUrl":"10.1016/j.cep.2025.110335","url":null,"abstract":"<div><div>High-frequency pulsed electrical dewatering is widely used in crude oil emulsification, but the mechanisms for shale oil dehydration remain unclear due to its complex composition. This study evaluated the dewatering performance of six shale oil samples under gravity alone, followed by physical property testing, droplet size analysis, and compositional evaluation of two selected samples. We investigated the effects of electric field frequency, strength, pulse width ratio, and dewatering time on the dewatering efficiency of pretreated shale oils subjected to a high-frequency pulsed electric field. The results showed that the average droplet diameter in shale oil ranged from 2 to 3 μm, which was a smaller and more concentrated distribution than in conventional crude oil. Optimal parameters for emulsion breaking were identified for two shale oil types: SH-A, with a 4 kHz frequency, 150 kV/m strength, 50 % pulse width ratio, and 60 °C, achieved a water content reduction from 40 % to 0.69 % in 60 min; SH-B, with a 5 kHz frequency, 150 kV/m strength, 50 % pulse width ratio, and 60 °C, reduced water content from 40 % to 0.68 % in 50 min. In contrast, unpretreated shale oil is extremely poorly dewatered. The theoretical mechanisms of shale oil pretreatment in enhancing electrical dewatering are based on increasing dipole aggregation force in the electric field. This is achieved by increasing the water content, which enlarges the droplet radius, raises the permittivity of the emulsion, and reduces the spacing between droplets. These findings provided essential insights into optimizing the electrical dewatering process for shale oil.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"214 ","pages":"Article 110335"},"PeriodicalIF":3.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906238","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}

引用次数: 0

Innovative PVDF@PFTES mixed matrix membranes for improved desalination via vacuum membrane distillation 创新PVDF@PFTES混合基质膜，通过真空膜蒸馏改善海水淡化

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2025-04-30 DOI: 10.1016/j.cep.2025.110346

Samraa R. Khaleel , Salah S. Ibrahim , Dahiru U. Lawal , Qusay F. Alsalhy

{"title":"Innovative PVDF@PFTES mixed matrix membranes for improved desalination via vacuum membrane distillation","authors":"Samraa R. Khaleel , Salah S. Ibrahim , Dahiru U. Lawal , Qusay F. Alsalhy","doi":"10.1016/j.cep.2025.110346","DOIUrl":"10.1016/j.cep.2025.110346","url":null,"abstract":"<div><div>This study investigates the preparation and performance evaluation of flat sheet polyvinylidene fluoride (PVDF) membranes, fabricated via the phase inversion method. Varying amounts of powdered activated carbon (CNM/PAC) comprising high hydrophobic carbon nanomaterials (0.1, 0.2, 0.3, 0.4, and 0.5 wt. %) are incorporated into the polymeric matrix, and then, modified by dip coating in a solution of 1H, 1H, 2H, 2HPerfluorodecyltriethoxysilane (PFTES)/hexane at varying concentration. The modified membranes were systematically assessed for their performance in vacuum membrane distillation (VMD), focusing on key metrics such as permeate flux, gain output ratio (GOR). Results disclosed that the chemically modified membrane 0.4 % CNM/PAC/PVDF with 2 % PFTES (2 %FM4) had superior stability compared to the unmodified membranes, demonstrating a higher water contact angle of 124° and a permeate flux of 16.61 L/m².h. Moreover, the salt rejection remained consistent at 99.9 % over prolonged operation of 96 hours, using simulated seawater. The GOR value displayed around 44 % increment at optimum operating condition (65°C feed temperature, 0.6 L/min feed flowrate and 21kPa(abs) vacuum pressure), imparting an enhancement in the thermal efficiency.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"214 ","pages":"Article 110346"},"PeriodicalIF":3.8,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143917589","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}

引用次数: 0

Lithium extraction from lepidolite using molten ammonium bifluoride: applying response surface methodology to model and optimize the thermal process 熔融二氟化铵从锂云母中提取锂：应用响应面法模拟和优化热过程

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2025-04-29 DOI: 10.1016/j.cep.2025.110336

Alexander C. Resentera , Fabián Calabró , Mario H. Rodriguez

{"title":"Lithium extraction from lepidolite using molten ammonium bifluoride: applying response surface methodology to model and optimize the thermal process","authors":"Alexander C. Resentera , Fabián Calabró , Mario H. Rodriguez","doi":"10.1016/j.cep.2025.110336","DOIUrl":"10.1016/j.cep.2025.110336","url":null,"abstract":"<div><div>This work presents the modeling and optimization of a new lithium extraction method from lepidolite with molten NH<sub>4</sub>HF<sub>2</sub>. The interaction between the mineral and the fluorinating agent was studied by DSC, indicating that the reaction occurs between 75 and 160 °C, approximately. Thus, the temperature (<span><math><mi>T</mi></math></span>), time (<span><math><mi>t</mi></math></span>), and NH<sub>4</sub>HF<sub>2</sub> amount (<span><math><mi>m</mi></math></span>) of the thermal process were studied by design of experiments (DOE) and response surface methodology (RSM). The DOE experimental results were modeled using least squares to obtain a predictive model of the system (R² = 0.9730). The ANOVA of the reduced cubic model indicated the influence of the three operating parameters investigated, and the interactions <span><math><mrow><mi>T</mi><mi>m</mi></mrow></math></span>, <span><math><msup><mrow><mi>T</mi></mrow><mn>2</mn></msup></math></span>, <span><math><msup><mrow><mi>m</mi></mrow><mn>2</mn></msup></math></span>, and <span><math><mrow><msup><mrow><mi>T</mi></mrow><mn>2</mn></msup><mi>m</mi></mrow></math></span> were significant. Finally, the process was optimized, obtaining Li extractions of 95 ± 4 % at 144 °C, 60 min of reaction, and using 13.5 g of NH<sub>4</sub>HF<sub>2</sub> per gram of lepidolite. In this way, the new process minimizes operating conditions and costs and maximizes lithium extraction compared to traditional methods. Furthermore, this process allowed us to show the benefits and details of the correct application of DOE and RSM in extractive metallurgy processes.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"214 ","pages":"Article 110336"},"PeriodicalIF":3.8,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143900178","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}

引用次数: 0

Highly efficient phosphate removal from water with lanthanum oxide nanoparticles loaded on aeolian sand 风成沙负载氧化镧纳米粒子高效去除水中磷酸盐

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2025-04-27 DOI: 10.1016/j.cep.2025.110334

Shu-Hao Zhou , Zhen Jin , Qian-Xi Li , Chen-Xin Ding , Jie Li , Wei Song , Yu-Ru Sun

{"title":"Highly efficient phosphate removal from water with lanthanum oxide nanoparticles loaded on aeolian sand","authors":"Shu-Hao Zhou , Zhen Jin , Qian-Xi Li , Chen-Xin Ding , Jie Li , Wei Song , Yu-Ru Sun","doi":"10.1016/j.cep.2025.110334","DOIUrl":"10.1016/j.cep.2025.110334","url":null,"abstract":"<div><div>A composite material, lanthanum oxide nanoparticles modified aeolian sand (LOAS), for phosphate removal from water was prepared by hydrothermal method. The optimum preparation conditions were obtained by controlling the amount of lanthanum and polyethylene glycol, and the growth period. The results of XRD, SEM and TEM studies showed that the lanthanum oxide nanoparticles formed a disordered layered structure on the surface of the aeolian sand. The adsorption rate reached 80 % in 180 min, according to the adsorption kinetic analysis, which demonstrated that the Elovich kinetic model fit the experimental data well. 71.383 mg P/g was the anticipated adsorption capability, and the Freundlich model was more closely matched by the adsorption isotherm. FT-IR and XPS were used to study the adsorption process of phosphate, and LOAS was insensitive to the initial pH or coexisting anions, adsorption efficiency is above 80 %. The findings demonstrated that the primary processes of phosphate adsorption were electrostatic interactions and ligand exchange.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"214 ","pages":"Article 110334"},"PeriodicalIF":3.8,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906237","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}

引用次数: 0

An Eco-benign synthesis of multifunctional TPP-Co3O4 NPs by polyphenol rich tea infusion extracted by microwave method with enhanced biomedical applications 用微波法提取富多酚茶叶冲剂合成多功能TPP-Co3O4 NPs，增强其生物医学应用

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2025-04-26 DOI: 10.1016/j.cep.2025.110329

Muhammad Saleem , Ehab A. Abdelrahman , Zainab Hassan Alnakhli , Mohib Ullah , Syed Badshah , Noura Al-Dayan , Mortaga M. Abou-Krisha , Abdulrahman G. Alhamzani , Dilfaraz Khan , Khalil ur Rehman

{"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 , Ehab A. Abdelrahman , Zainab Hassan Alnakhli , Mohib Ullah , Syed Badshah , Noura Al-Dayan , Mortaga M. Abou-Krisha , Abdulrahman G. Alhamzani , Dilfaraz Khan , 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-Co<sub>3</sub>O<sub>4</sub> 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-Co<sub>3</sub>O<sub>4</sub> NPs). Several physicochemical techniques were used to investigate the synthesized nanoparticles. TPP-Co<sub>3</sub>O<sub>4</sub> 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-Co<sub>3</sub>O<sub>4</sub> 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}

引用次数: 0

Numerical investigation on the combustion flow in a radial hydrogen/air staged swirl burner 径向氢/空气分级旋流燃烧器燃烧流动的数值研究

IF 3.8 3区工程技术

Chemical Engineering and Processing - Process Intensification Pub Date : 2025-04-25 DOI: 10.1016/j.cep.2025.110331

Zhuoxiong Zeng , Hong Liu

引用次数: 0