Chemical Engineering Research & Design最新文献

{"title":"Plasma-assisted synthesis of carbon black with enhanced surface area and crystallinity from pyrolysis fuel oil: Optimizing process parameters","authors":"Atieh Khosravi ,&nbsp;Mohammadreza Khani ,&nbsp;Babak Shokri","doi":"10.1016/j.cherd.2025.06.010","DOIUrl":"10.1016/j.cherd.2025.06.010","url":null,"abstract":"<div><div>This study presents a sustainable plasma-based method to synthesize carbon black (CB) from pyrolysis fuel oil (PFO), a waste-derived feedstock, contrasting traditional energy-intensive furnace processes. Injecting PFO into a plasma plume, we varied current and injection pressure to assess impacts on CB properties. Advanced analyses (Raman, BET, TEM) showed higher currents yield smaller, more crystalline particles, while increased pressure elevates surface area but reduces crystallization. Under optimal process conditions (120 A current, 2.0 bar injection pressure), plasma-derived CB exhibited enhanced properties with a surface area of 89.2 m²/g (vs. 74.3 m²/g for conventional N330) and an iodine adsorption number of 90 mg/g (vs. 75 mg/g for N330), demonstrating superior performance potential for rubber reinforcement, energy storage, and catalytic applications. By optimizing parameters, this method offers an eco-friendly, efficient alternative for tailoring CB properties, advancing sustainable industrial applications.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"219 ","pages":"Pages 222-234"},"PeriodicalIF":3.7,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144253880","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":"Elucidating the barriers in estimating false data injection attacks in process control systems","authors":"Aatam Gajjar,&nbsp;Nael H. El-Farra,&nbsp;Matthew J. Ellis","doi":"10.1016/j.cherd.2025.05.041","DOIUrl":"10.1016/j.cherd.2025.05.041","url":null,"abstract":"<div><div>Process control systems (PCSs) ensure efficient, safe, and high-quality chemical production. However, their growing reliance on communication networks increases vulnerability to cyberattacks, such as false data injection attacks (FDIAs). FDIAs modify data transferred over the PCS communication links. Addressing FDIAs requires detecting their presence, estimating their parameters, and mitigating their impact. This study examines the identifiability of FDIA parameters—precisely, the ability to estimate these parameters using observable process data. We present cases where attack parameters cannot be uniquely determined from observed data and assess their implications for attack estimation. First, we consider the case when the attack’s impact is indistinguishable from process disturbances or measurement noise. Second, we consider the case when the relationship between the observed data and the attack parameter values is not unique. Both cases result in a lack of identifiability in the attack parameter values from the process data. While the former is tied to inherent process and attack properties, the latter can be addressed using longer observation windows in estimation schemes. We explore these issues through different estimators and demonstrate their impact using a process example. Despite these challenges, we also present scenarios where accurate FDIA estimates can be achieved. Finally, we apply one of the estimators to a chemical process under simultaneous additive and multiplicative FDIAs, showcasing its effectiveness and validating its ability to estimate attack parameters accurately.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"219 ","pages":"Pages 181-197"},"PeriodicalIF":3.7,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144253879","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":"Exploring the potential of MnWO4/MXene/carbon xerogel photocatalyst for photo efficient degradation of crystal violet","authors":"Yaksha Verma ,&nbsp;Mu. Naushad ,&nbsp;Alberto García-Peñas ,&nbsp;Amit Kumar ,&nbsp;Pooja Dhiman ,&nbsp;Gaurav Sharma","doi":"10.1016/j.cherd.2025.05.053","DOIUrl":"10.1016/j.cherd.2025.05.053","url":null,"abstract":"<div><div>Photocatalytic degradation under visible light offers a sustainable approach for removing organic pollutants from wastewater. In this study, MnWO₄, MXene, carbon xerogel, and their composites were synthesized through a simple and efficient method and evaluated for the photocatalytic degradation of crystal violet (CV) dye. Among them, the MnWO₄/MXene/carbon xerogel composite exhibited superior performance, achieving 95 % CV dye removal within 60 min under optimized conditions (25 mg catalyst dose, 10 ppm dye concentration, pH 12). Kinetic studies confirmed the enhanced degradation rate compared to the individual components. The improved activity was attributed to the formation of an S-scheme heterojunction between MnWO₄ and MXene, facilitating efficient charge separation and maintaining strong redox potentials. Hydroxyl radicals (^•OH) and superoxide radicals (^•O₂⁻) were identified as the main reactive species. Additionally, the composite demonstrated good stability and recyclability, retaining over 90 % efficiency after four cycles. These findings suggest that the MnWO₄/MXene/carbon xerogel composite is a promising, stable photocatalyst for practical environmental remediation applications.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"219 ","pages":"Pages 235-248"},"PeriodicalIF":3.7,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144253881","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":"Study on the dust migration rule and optimal ventilation parameters in tunnel drilling and blasting under forced ventilation","authors":"Jie Ren ,&nbsp;Rufeng Zhang ,&nbsp;Fujun Ma ,&nbsp;Guoqing Wan ,&nbsp;Kaixuan Chen ,&nbsp;Shaokun Yang","doi":"10.1016/j.cherd.2025.06.001","DOIUrl":"10.1016/j.cherd.2025.06.001","url":null,"abstract":"<div><div>Dust generated by tunnel drilling and blasting seriously harms workers' health. To ensure the personal safety of construction personnel and create a clean working environment, this study, in combination with the actual engineering background and on-site monitoring data, simulates the interaction between the airflow field and the dust field under forced ventilation conditions. The distribution characteristics of the airflow field and the dust migration law are investigated at heights of 0.3 m and 1.5 m. The results show that the recirculation zone formed on the farthest side of the air duct has a relatively high wind speed and serves as the main carrier for transporting dust particles. In contrast, the eddy current zone far from the outlet of the air duct has complex and disordered airflow, which significantly inhibits the transportation of dust. The density of dust particles is the decisive factor for the decline rate of dust concentration. There is more dust accumulation at the lower level, and the diffusion is slower. The reliability of the simulation results is verified by the on-site monitoring data. Further research on the ideal ventilation parameters of the tunnel indicates that the ideal ventilation wind speed is 15 m/s, and the ideal distance between the air duct and the working face is 40 m.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"219 ","pages":"Pages 120-133"},"PeriodicalIF":3.7,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144221846","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":"Recent trends in physio-chemo technologies and their role in dyes removal: Effectiveness, benefits, and limitations","authors":"Aya A. Najim ,&nbsp;Ahmed Y. Radeef ,&nbsp;Zaid H. Jabbar","doi":"10.1016/j.cherd.2025.06.005","DOIUrl":"10.1016/j.cherd.2025.06.005","url":null,"abstract":"<div><div>Industrial wastewater dyes removal is important to decrease environmental pollution and protect public health. The efficiency, benefits, and challenges of major physical and chemical techniques used for dye removal are discussed in this review. Yet physical methods such as the adsorption of dyes through activated carbon, polymers, or nanomaterials have demonstrated good dyes capture from wastewater because of their simplicity and versatility in dealing with various dye types and dye concentrations. However, these are potent methods, but they depend upon frequent regeneration or replacement of adsorbent materials. Advanced oxidation processes and chemical approaches chemically degrade dye molecules into less harmful by-products. The high efficacy of breaking down these dyes was shown using methods such as ozonation, Fenton's reagent, and photocatalysis even at low concentrations. However, these technologies often have higher operational costs and require careful handling of reagents and waste products. Decisions to select an optimal dye removal strategy are conditioned by dye properties, concentration, treatment objectives, and cost factors. This review may help readers to choose the most suitable method for dyes removal.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"219 ","pages":"Pages 198-221"},"PeriodicalIF":3.7,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144253882","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":"Study of flow characteristics in straight-flow gas-liquid cyclone separator","authors":"Zhiqian Sun,&nbsp;Jiangrong Li,&nbsp;Mingze Sun,&nbsp;Zhenbo Wang","doi":"10.1016/j.cherd.2025.05.051","DOIUrl":"10.1016/j.cherd.2025.05.051","url":null,"abstract":"<div><div>In recent years, the rapid development of the natural gas industry has put forward higher requirements for gas-liquid cyclone separation technology. However, the separation effect of conventional straight-flow gas-liquid cyclone separator on small-size droplets remains unsatisfactory, and the pressure drop is relatively high. In order to improve the comprehensive performance of cyclone, numerical simulation study was carried out to analyze the distribution of the flow field, droplet particles and liquid film, as well as to investigate the influence of various factors on the flow field and separation performance. The results show that the tangential velocity distribution conforms to the Rankine vortex structure, the local vortex predominantly exists in the bottom center of the cylinder and the exhaust pipe. The liquid droplets are mostly distributed in the free vortex region, and as the flow progresses, the number and sizes of particles gradually decrease, most particles in the exhaust pipe have a particle size of less than 2 μm, indicating that the cyclone is effective in separating small-size droplets, and the liquid film is mainly distributed in the lower part of the cylinder, extending upwards along the helix. Increasing the intake can effectively improve the separation efficiency, within the range of intake from 60 m³·h⁻¹ to 100 m³·h⁻¹, the best separation efficiency—reaching up to 97.5 %—is achieved when the height of the cylinder is 350 mm, the number of blades is 10, the angle of the blade outlet is 25°, and the structure of the exhaust pipe is a straight cylinder with a conical shape, while at the same time generating low energy consumption and a relatively large quality factor indicating excellent overall performance of the cyclone. The results of this study can provide a certain reference value for the optimization design of straight-flow gas-liquid cyclone separator.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"219 ","pages":"Pages 100-119"},"PeriodicalIF":3.7,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144221877","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":"Facile synthesis of novel graphene-based magnetized nanocomposite for the simultaneous elimination of lead (II) and chromium (VI) in aqueous medium: Insights of interfacial studies","authors":"Ngainunsiami ,&nbsp;Lalhmunsiama ,&nbsp;Diwakar Tiwari","doi":"10.1016/j.cherd.2025.05.056","DOIUrl":"10.1016/j.cherd.2025.05.056","url":null,"abstract":"<div><div>Green and sustainable approaches have received greater attention in synthesizing advanced materials for efficient wastewater treatment processes. The mesoporous magnetized nanomaterials were synthesized employing bioderived graphene oxide and bentonite. The advanced tools characterized the nanocomposite materials extensively. Further, the synthesized composite was utilized to efficiently eliminate lead (II) and chromium (VI), both individually and simultaneously, from aqueous medium. The theoretical modeling using the Sips expanded equation proved the material's effectiveness in eliminating such ions. Parametric studies reveal solid-solution interface interactions influenced by pH, concentration, and electrolyte levels. 32.84 and 5.17 mg/g are the sorption capacities of the nanocomposite solid for lead (II) and chromium (VI), respectively. In contrast, pH being 3.7, a binary system of lead (II) to chromium (VI) with a 1:1 ratio showed 27.5 and 25.1 mg/g for lead (II) and chromium (VI), respectively. Several studies involving interfering co-ions and real matrix samples further demonstrate the efficacy of nanocomposite materials in eliminating these pollutants. The 0.1 mol/L of HCl and H₂SO₄ solutions efficiently recover the pre-sorbed lead (II) and chromium (VI) from the solid surface for four successive sorption/desorption processes, and successive use of the nanocomposite solid entails the potential of the nanocomposite solid in the sustainable unit operations.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"219 ","pages":"Pages 67-78"},"PeriodicalIF":3.7,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144212301","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":"Self-utilization of indigenous materials in plateau areas: Peroxymonosulfate activation by manganese modified barley straw biochar for efficient degradation of enrofloxacin","authors":"Da Wang,&nbsp;Miao Zhang,&nbsp;Qingjie Xie,&nbsp;Song Han,&nbsp;Sisi Xiao,&nbsp;Huijuan Wang","doi":"10.1016/j.cherd.2025.06.003","DOIUrl":"10.1016/j.cherd.2025.06.003","url":null,"abstract":"<div><div>In this study the indigenous materials in plateau areas were used to cope with the challenge of increasing antibiotics pollution in Qinghai-Xizang Plateau. The barely straw was chosen as the raw material to prepare the manganese modified biochar (XBSMBC) and then combined with peroxymonosulfate (PMS) to set up the PMS/XBSMBC system to treat the enrofloxacin (ENR) in water. The study showed that there was a higher PMS activation and thus ENR degradation of the manganese modified biochar prepared from the barley straw than those from Xizang wheat straw and Henan wheat straw. The preparation parameters of the XBSMBC, including the mass ratio of barley straw to manganese and the pyrolysis temperature, for the PMS activation as well as the ENR degradation were reviewed and found that the 1:1 and 900 °C were the optimal preparing conditions (XBSMBC-900 (1:1)). The influence of the XBSMBC-900 (1:1) additive amount, PMS dosage and solution initial pH on the ENR degradation was also ascertained. Results of quenching experimental studies and electron paramagnetic resonance demonstrated that ENR degradation in the PMS/XBSMBC system was achieved by a combined effect of SO₄^·-, ·OH, ·O₂^- and ¹O₂. Four possible pathways of ENR degradation were provided, and the toxicity analysis predictions were applied to infer the validity of the PMS/XBSMBC process for the ENR solution treatment.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"219 ","pages":"Pages 167-180"},"PeriodicalIF":3.7,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144241476","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":"Exploring induction heating catalysis with nano-indium on silica: From room-temperature to thermal synthesis of 1,3-dioxolane as a new sustainable fertilizer enhancer","authors":"Maciej Kapkowski ,&nbsp;Tomasz Siudyga ,&nbsp;Karina Kocot ,&nbsp;Katarzyna Balin ,&nbsp;Marcin Fijałkowski ,&nbsp;Maciej Zubko ,&nbsp;Krystian Prusik ,&nbsp;Adrianna Chojnowska ,&nbsp;Grzegorz Dercz ,&nbsp;Wojciech Kujawski ,&nbsp;Guoqiang Li ,&nbsp;Tomáš Zelenka ,&nbsp;Gabriela Zelenková ,&nbsp;Michał Ludynia ,&nbsp;Edyta Sierka ,&nbsp;Sylvain Antoniotti ,&nbsp;Jaroslaw Polanski","doi":"10.1016/j.cherd.2025.05.035","DOIUrl":"10.1016/j.cherd.2025.05.035","url":null,"abstract":"<div><div>In this study, we present, for the first time, an indium nanoparticle system deposited on SiO₂ (In/SiO₂) as a highly efficient catalyst synthesizing of 1,3-dioxolanes. We also report, for the first time, the incorporation of the In/SiO₂ system into the Induction Heating Catalysis (IHC) platform. This innovative approach eliminates the need for strong acids or organic co-solvents. IHC is a relatively new method. We need to test its applicability. In our previous IHC experiments in liquid phase, we loaded the catalyst on the IHC active ferromagnetic material, e.g., Ni wool. Now, we show in numerous experiments with blank samples that even at the minute catalytic amount, we are observing the IHC effect through increased reactant conversion. The In/SiO₂ catalyst demonstrated sufficient activity even at room temperature. The reaction mechanism, indicated by TOF-SIMS analysis, reveals a dual synergistic activation between indium and silica, facilitating the acetalization. The kinetic analysis identified a second-order model as the best fit, with the reaction occurring in the kinetic region. The catalyst with In NPs deposited on granulated silica limits leaching and enables the production of high-purity products. We also explored the Pervap™ 4100HF polymer membrane to remove water from post-reaction mixtures, favorably altering the reaction equilibrium. Additionally, cyclic ketals were tested as fertilizer adjuvants to improve maize yields, showing the potential to reduce fertilizer usage by up to 50 % without compromising crop productivity. This class of adjuvants may help for sustainable fertilizer management and reduce the anthropogenic carbon footprint in accordance with current and future legal regulations (United Nations - Agenda 2030).</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"218 ","pages":"Pages 867-885"},"PeriodicalIF":3.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144185135","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":"Multivariate optimization of CO2 conversion on Ce/Tb oxides by chemical looping","authors":"Federico J. Pomiro ,&nbsp;Georgina De Micco ,&nbsp;Agustín E. Tamietti ,&nbsp;Gastón G. Fouga","doi":"10.1016/j.cherd.2025.05.028","DOIUrl":"10.1016/j.cherd.2025.05.028","url":null,"abstract":"<div><div>The catalytic conversion of CO₂ into valuable chemicals, such as CO, offers a promising solution to mitigate greenhouse gas emissions and promote sustainable energy cycles. In this study, cerium-terbium oxides were optimized for CO production through thermochemical cycles, utilizing a response surface methodology. Optimization was performed for both the first cycle and the average of three cycles to identify key parameters, including calcination temperature, terbium concentration, reduction time, oxidation time, and cycle temperature. The cubic response surface model demonstrated strong predictive capabilities (R² &gt; 0.99) and highlighted significant interactions between key variables. These findings underscore the potential of cerium-terbium oxides as robust, tunable materials for thermochemical CO₂ conversion, offering insights for industrial application in energy-efficient processes. For the first cycle and the average over three cycles, the optimal terbium concentration (0.22–0.23 mol) was consistent, while reaction times and temperatures significantly impacted CO production, with oxidation time being a critical factor for achieving high conversion in shorter times. An alternative optimization approach minimized operational energy by reducing reaction temperatures and times. Additionally, electron paramagnetic resonance analysis revealed the presence of paramagnetic centers associated with oxygen vacancies, confirming the defect-rich nature of the reduced cerium-terbium oxide and its potential relevance for CO₂ activation.</div></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":"218 ","pages":"Pages 908-918"},"PeriodicalIF":3.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144189308","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}