Asia-Pacific Journal of Chemical Engineering最新文献

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Optimized Selenium-Doped Nanocomposites for Enhanced Polymer Gel Performance in Permeability Reduction 优化掺硒纳米复合材料增强聚合物凝胶减透性能
IF 1.7 4区 工程技术
Asia-Pacific Journal of Chemical Engineering Pub Date : 2026-08-04 Epub Date: 2026-04-08 DOI: 10.1002/apj.70231
Fadhil F. Sead, Farag M. A. Altalbawy, M. Sudhakara Reddy, Badri Narayan Sahu, Sridharan Sundharam, Sanjeev Kumar, Atreyi Pramanik, Aseel Smerat, Fatimah Pashtun
{"title":"Optimized Selenium-Doped Nanocomposites for Enhanced Polymer Gel Performance in Permeability Reduction","authors":"Fadhil F. Sead,&nbsp;Farag M. A. Altalbawy,&nbsp;M. Sudhakara Reddy,&nbsp;Badri Narayan Sahu,&nbsp;Sridharan Sundharam,&nbsp;Sanjeev Kumar,&nbsp;Atreyi Pramanik,&nbsp;Aseel Smerat,&nbsp;Fatimah Pashtun","doi":"10.1002/apj.70231","DOIUrl":"https://doi.org/10.1002/apj.70231","url":null,"abstract":"<p>Excessive water production in mature oil fields necessitates robust shut-off treatments, yet conventional polymer gels often fail under high-temperature and high-salinity conditions. This study aims to enhance gel thermal stability and mechanical strength by incorporating selenium-doped Ag/AgO–ZnO nanocomposites synthesized via a novel green route using <i>Pinus nigra</i> pollen extract. The nanoparticles were characterized using XRD, SEM, and UV–Vis spectroscopy, then formulated into HPAM/Cr(III) gels to evaluate rheology, syneresis resistance, and plugging efficiency in sandstone cores. Results indicated that 500-ppm nanocomposite loading provided an optimal gelation time of 10 h and reduced water loss (syneresis) to ≤ 3% after 2 months, compared with 70% for the unmodified control. Rheological tests confirmed a significantly higher storage modulus and broader viscoelastic range. Most notably, core flooding experiments yielded a residual resistance factor (RRF) exceeding 3200, an order-of-magnitude improvement over the nano-free baseline (RRF = 20). In conclusion, this eco-friendly nanocomposite gel system offers a highly durable, efficient solution for deep-reservoir conformance control operations.</p>","PeriodicalId":49237,"journal":{"name":"Asia-Pacific Journal of Chemical Engineering","volume":"21 4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apj.70231","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662390","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
Research on Evaporation Characteristics and Safe Storage Duration of Marine Liquid Hydrogen Storage Tanks Under the Coupling Effect of Heat Leakage and Sloshing 泄漏和晃动耦合作用下船用液氢储罐蒸发特性及安全贮存期研究
IF 1.7 4区 工程技术
Asia-Pacific Journal of Chemical Engineering Pub Date : 2026-08-04 Epub Date: 2026-03-09 DOI: 10.1002/apj.70237
Yan Deng, Wenfeng Wu, Zhenyu Zhao, Rongsheng Lin, Liangyi Sun, Youfei Liu
{"title":"Research on Evaporation Characteristics and Safe Storage Duration of Marine Liquid Hydrogen Storage Tanks Under the Coupling Effect of Heat Leakage and Sloshing","authors":"Yan Deng,&nbsp;Wenfeng Wu,&nbsp;Zhenyu Zhao,&nbsp;Rongsheng Lin,&nbsp;Liangyi Sun,&nbsp;Youfei Liu","doi":"10.1002/apj.70237","DOIUrl":"https://doi.org/10.1002/apj.70237","url":null,"abstract":"<p>Liquid hydrogen, a zero-carbon and high–energy-density fuel, is a promising option for future oceangoing vessels. During maritime transportation, onboard cryogenic tanks are exposed to ambient heat leakage and ship-induced roll motion, which can trigger sloshing and fundamentally modify the coupled thermo-fluid processes governing boil-off and pressurization. In this study, a transient two-dimensional multiphysics model is established to simulate a liquid-hydrogen storage tank under prescribed roll-type oscillations with heat leakage. A stationary case is considered in parallel as a baseline, enabling quantitative comparisons of temperature evolution, vapor accumulation, free-surface response, and pressure rise between motionless and oscillatory conditions. The results show that roll-induced sloshing markedly accelerates pressurization and reduces the safety margin: the lossless storage duration decreases from 9.0 h under stationary conditions to as low as 3.2 h under high-frequency excitation. Increasing the oscillation amplitude from 5° to 15° intensifies interfacial disturbance and convective transport, thereby accelerating vapor generation and shortening the lossless storage duration from 6.6 to 4.1 h. Decreasing the oscillation period from 12 to 3 s increases the maximum liquid level from 140.9 to 170.7 mm, raises the daily evaporation rate by approximately 2.72%, and reduces the lossless storage duration from 7.6 to 3.2 h. Moreover, the initial fill level is identified as a critical factor under sloshing: At 150 s, the pressure increases from approximately 102.78 kPa at 10% fill to 106.43 kPa at 90% fill due to reduced vapor headspace and enhanced sensitivity to vapor accumulation. Overall, the tank's safe operation is governed by the coupled effects of oscillation intensity (amplitude), excitation frequency (period), and fill level. These findings provide quantitative evidence for establishing safety margins and for mitigating pressurization and boil-off losses through appropriate motion control and filling/operational strategies for onboard liquid-hydrogen storage systems.</p>","PeriodicalId":49237,"journal":{"name":"Asia-Pacific Journal of Chemical Engineering","volume":"21 4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apj.70237","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662489","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
Synthesis and Interfacial Behavior of Mixed Potassium N-Lauroyl/N-Myristoyl Glycinate Surfactants With Varying Alkyl Chain Ratios 不同烷基链比n -月桂酰钾/ n -肉豆油酰甘氨酸混合表面活性剂的合成及界面行为
IF 1.7 4区 工程技术
Asia-Pacific Journal of Chemical Engineering Pub Date : 2026-08-04 Epub Date: 2026-04-08 DOI: 10.1002/apj.70249
Toshihiro Takeshita, Tanjina Sharmin, Atsuki Nishihara, Sihyung Kim, Kazusa Mishima, Sahena Ferdosh, Agus Saptoro, Hussein Znad, Zaidul Islam Sarker, Kai Bin Liew, Mikio Ouchi, Kenji Mishima
{"title":"Synthesis and Interfacial Behavior of Mixed Potassium N-Lauroyl/N-Myristoyl Glycinate Surfactants With Varying Alkyl Chain Ratios","authors":"Toshihiro Takeshita,&nbsp;Tanjina Sharmin,&nbsp;Atsuki Nishihara,&nbsp;Sihyung Kim,&nbsp;Kazusa Mishima,&nbsp;Sahena Ferdosh,&nbsp;Agus Saptoro,&nbsp;Hussein Znad,&nbsp;Zaidul Islam Sarker,&nbsp;Kai Bin Liew,&nbsp;Mikio Ouchi,&nbsp;Kenji Mishima","doi":"10.1002/apj.70249","DOIUrl":"https://doi.org/10.1002/apj.70249","url":null,"abstract":"<p>Biodegradable and low-irritant amino acid–based surfactants have attracted considerable attention as environmentally friendly alternatives to conventional petroleum-derived surfactants. In this study, a series of acyl amino acid surfactants with identical amino acid head groups but different alkyl chain lengths were synthesized via a modified Schotten–Baumann condensation between fatty acyl chlorides and glycine as amino acids under alkaline conditions. The synthesis was conducted using lauroyl chloride and myristoyl chloride mixtures with molar ratios of 10:0, 9:1, 8:2, and 7:3 to investigate the effect of alkyl chain composition on interfacial properties. The obtained products, easily purified by phase separation, were characterized by Fourier transform infrared spectroscopy (FT–IR), proton nuclear magnetic resonance spectroscopy (<sup>1</sup>H NMR), and electrospray ionization mass spectrometry (ESI–MS). Surface tension, foaming ability, and foam stability were systematically evaluated. Surface tension measurements revealed comparable surface excess values for all compositions, while the critical micelle concentration showed a non-monotonic dependence on chain ratio, with a minimum at the 9:1 composition. Foaming tests demonstrated enhanced foamability and good foam stability for the mixed systems, particularly at the 9:1 ratio. These results highlight the importance of mixed alkyl chain composition in designing efficient and sustainable amino acid–based surfactants.</p>","PeriodicalId":49237,"journal":{"name":"Asia-Pacific Journal of Chemical Engineering","volume":"21 4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apj.70249","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662341","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
Advanced Separation Technologies for Light Olefin and Alkane (C2-C4): Recent Advances in Extraction, Adsorption, and Membrane Separation 轻烯烃和烷烃(C2-C4)的先进分离技术:萃取、吸附和膜分离的最新进展
IF 1.7 4区 工程技术
Asia-Pacific Journal of Chemical Engineering Pub Date : 2026-08-04 Epub Date: 2026-05-07 DOI: 10.1002/apj.70258
Shasha Zhao, Kang Zhao, Zhen Liu
{"title":"Advanced Separation Technologies for Light Olefin and Alkane (C2-C4): Recent Advances in Extraction, Adsorption, and Membrane Separation","authors":"Shasha Zhao,&nbsp;Kang Zhao,&nbsp;Zhen Liu","doi":"10.1002/apj.70258","DOIUrl":"https://doi.org/10.1002/apj.70258","url":null,"abstract":"<p>With the rapid development of the petrochemical industry, efficient separation technology for olefins and alkanes with the same number of carbon atoms has become an important research topic to enhance the efficiency of petroleum resource utilization and optimize product quality. Due to the similar molecular structure and volatility between olefins and alkanes with the same carbon number, traditional separation methods (such as low-temperature distillation) are limited by high energy consumption and significant costs. In recent years, significant progress has been made in the separation technology of olefins/alkanes by researchers, involving the application of technologies such as ionic liquids, low-melting solvents, and novel adsorption materials. These emerging separation technologies not only improve separation efficiency but also effectively reduce energy consumption and costs. This article reviews the progress in light olefin/alkanes separation methods in recent years and provides an outlook on future research directions in this field, aiming to provide theoretical support and references for related research on the separation of olefins and alkanes.</p>","PeriodicalId":49237,"journal":{"name":"Asia-Pacific Journal of Chemical Engineering","volume":"21 4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apj.70258","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662519","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
Assessment of Hydrate Prediction Software for MEG–Water–NaCl Systems MEG-Water-NaCl体系水合物预测软件评价
IF 1.7 4区 工程技术
Asia-Pacific Journal of Chemical Engineering Pub Date : 2026-08-04 Epub Date: 2026-04-16 DOI: 10.1002/apj.70253
Carys M. Bloomfield, Chi M. Phan, Ammar Al Helal
{"title":"Assessment of Hydrate Prediction Software for MEG–Water–NaCl Systems","authors":"Carys M. Bloomfield,&nbsp;Chi M. Phan,&nbsp;Ammar Al Helal","doi":"10.1002/apj.70253","DOIUrl":"https://doi.org/10.1002/apj.70253","url":null,"abstract":"<p>This study evaluates the performance of three industry-standard simulation tools—Aspen HYSYS (V14), Multiflash (V7.5), and OLGA (V2024.1)—by comparing predicted hydrate dissociation temperatures with experimental data obtained from a PVT sapphire cell. The analysis focuses on systems representative of typical pipeline operating conditions (80–200 bar) containing water, monoethylene glycol (MEG), and lower concentrations of sodium chloride, which are commonly encountered inhibitors in natural gas transmission systems. Differences in thermodynamic models and equations of state were examined to assess their ability to capture the combined inhibitory effects of MEG and dissolved salts. The results demonstrate that all investigated software packages overpredict hydrate dissociation temperatures in the presence of salts, indicating that the full inhibitory effect of salts is not adequately represented. For salt-free systems, Aspen HYSYS with the glycol fluid package provided the most reliable predictions, whereas Multiflash using the Peng–Robinson equation of state yielded the closest agreement with experimental data for salt-containing mixtures. However, even this model underestimates salt inhibition. The low salt concentration range (1–3 wt%) was found to exhibit the largest model inaccuracies. An adjustment-factor analysis suggested that the salt inhibition is underestimated by a factor of 3–4 in commonly used software models for very low (~1 wt%) concentrations. Overall, this study provides a systematic validation and quantification of model bias under representative pipeline conditions, highlighting limitations in current thermodynamic formulations and identifying software configurations that offer improved hydrate prediction accuracy for inhibited systems.</p>","PeriodicalId":49237,"journal":{"name":"Asia-Pacific Journal of Chemical Engineering","volume":"21 4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apj.70253","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662036","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
Experimental Study on the Enhancement of Heat Transfer Performance in Sintered-Core Heat Pipes Using CuO Nanofluid CuO纳米流体增强烧结芯热管传热性能的实验研究
IF 1.7 4区 工程技术
Asia-Pacific Journal of Chemical Engineering Pub Date : 2026-08-04 Epub Date: 2026-04-13 DOI: 10.1002/apj.70252
Dawei Yan, Kaiyu Dong, Sisi Yao, Lei Gao, Weijie Sun, Qian Zhou, Zixi Yu, Shuang Wang
{"title":"Experimental Study on the Enhancement of Heat Transfer Performance in Sintered-Core Heat Pipes Using CuO Nanofluid","authors":"Dawei Yan,&nbsp;Kaiyu Dong,&nbsp;Sisi Yao,&nbsp;Lei Gao,&nbsp;Weijie Sun,&nbsp;Qian Zhou,&nbsp;Zixi Yu,&nbsp;Shuang Wang","doi":"10.1002/apj.70252","DOIUrl":"https://doi.org/10.1002/apj.70252","url":null,"abstract":"<p>This study presents the design and construction of an experimental system for evaluating the thermal performance of heat pipes, using sintered-wick heat pipes charged with CuO nanofluids. The device used in this study is a sintered-wick heat pipe, in which the liquid return is driven by capillary forces within the porous wick structure. The effects of nanoparticle concentration and fill ratio on heat pipe performance were systematically investigated. A comparative analysis was performed between CuO nanofluid heat pipes and conventional deionised water heat pipes, focusing on thermal resistance, single heat pipe heat transport capacity and thermal start-up performance. The results demonstrate that the effective thermal conductivity of a single heat pipe increases with increasing nanoparticle concentration, with an optimal liquid fill ratio of 40%–50% for heat pipes charged with 1.5 wt.% CuO nanofluid. Furthermore, under identical heating power, CuO nanofluid heat pipes exhibit a significantly faster thermal response time, with start-up time reduced by approximately 1–2 s compared with those of conventional heat pipes.</p>","PeriodicalId":49237,"journal":{"name":"Asia-Pacific Journal of Chemical Engineering","volume":"21 4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apj.70252","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662696","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
Impact of Cattaneo–Christov Heat and Mass Flux on MHD Hybrid Nanofluid Flow Over an Extending Surface With Convective and Mass Flux Effects Cattaneo-Christov热和质量通量对具有对流和质量通量效应的扩展表面上MHD混合纳米流体流动的影响
IF 1.7 4区 工程技术
Asia-Pacific Journal of Chemical Engineering Pub Date : 2026-08-04 Epub Date: 2026-04-21 DOI: 10.1002/apj.70250
Ebrahem A. Algehyne, Abdul Bariq, Mounirah Areshi, Fahad Maqbul Alamrani, Zehba Raizah, Izharul Haq, Anwar Saeed
{"title":"Impact of Cattaneo–Christov Heat and Mass Flux on MHD Hybrid Nanofluid Flow Over an Extending Surface With Convective and Mass Flux Effects","authors":"Ebrahem A. Algehyne,&nbsp;Abdul Bariq,&nbsp;Mounirah Areshi,&nbsp;Fahad Maqbul Alamrani,&nbsp;Zehba Raizah,&nbsp;Izharul Haq,&nbsp;Anwar Saeed","doi":"10.1002/apj.70250","DOIUrl":"https://doi.org/10.1002/apj.70250","url":null,"abstract":"<p>This study investigates the flow of a magnetized hybrid nanofluid over a permeable stretching surface. The mass and thermal transport within the system is regulated using the Cattaneo–Christov flux theory. The fluid is additionally subjected to thermophoresis, chemical reaction, Brownian motion, and activation energy effects. The governing equations are solved numerically using the bvp4c method. The key findings indicate that increasing the porosity parameter, magnetic parameter, and nanoparticle concentration reduces velocity in all directions. Temperature profiles rise with higher Brownian motion, magnetic parameter, thermal Biot number, thermophoresis factor, and nanoparticle concentration, but decrease with an increase in the thermal relaxation time parameter. Concentration profiles intensify with greater thermophoresis parameter, activation energy factor, and concentration Biot number, while they decline with higher chemical reaction factor, Brownian motion, and mass relaxation time parameter. Current results are authenticated through comparison with established data.</p>","PeriodicalId":49237,"journal":{"name":"Asia-Pacific Journal of Chemical Engineering","volume":"21 4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apj.70250","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662835","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
Two-Dimensional Flow and Thermal Energy Transfer in Non-Newtonian Casson–Carreau Ternary Hybrid Nanofluids Over Stationary and Moving Wedge Surfaces With Radiation and Magnetic Field Effects 非牛顿卡森-卡罗三元杂化纳米流体在固定和移动楔形表面上的二维流动和热能传递
IF 1.7 4区 工程技术
Asia-Pacific Journal of Chemical Engineering Pub Date : 2026-08-04 Epub Date: 2026-03-25 DOI: 10.1002/apj.70245
A. O. Akindele, A. M. Obalalu, M. O. Afolabi, Umair Khan, Samia Elattar
{"title":"Two-Dimensional Flow and Thermal Energy Transfer in Non-Newtonian Casson–Carreau Ternary Hybrid Nanofluids Over Stationary and Moving Wedge Surfaces With Radiation and Magnetic Field Effects","authors":"A. O. Akindele,&nbsp;A. M. Obalalu,&nbsp;M. O. Afolabi,&nbsp;Umair Khan,&nbsp;Samia Elattar","doi":"10.1002/apj.70245","DOIUrl":"https://doi.org/10.1002/apj.70245","url":null,"abstract":"<p>Efficient thermal management in advanced industrial systems requires improved heat transfer performance, particularly under non-Newtonian fluid behavior and complex surface geometries. This study investigates the two-dimensional flow and heat transfer characteristics of ternary hybrid nanofluids over both stationary and moving wedge surfaces using Casson and Carreau non-Newtonian fluid models. The mathematical model incorporates magnetic field effects, solar radiation, unsteadiness, and viscosity variations at limiting shear rates. The governing nonlinear partial differential equations are transformed into dimensionless form of ODEs and then solved numerically using the Chebyshev collocation method implemented in Mathematica 11.3. The results reveal that increasing the magnetic parameter significantly suppresses fluid velocity due to enhanced Lorentz forces, while thermal radiation intensifies the temperature distribution within the boundary layer. The wedge angle and velocity ratio parameters substantially influence shear stress and thermal boundary layer thickness. Furthermore, ternary hybrid nanofluids demonstrate superior thermal performance compared to conventional hybrid nanofluids under identical conditions. These findings provide deeper physical insight into the thermofluidic behavior of advanced nanofluid systems and highlight their potential for enhanced heat transfer applications in solar thermal systems, industrial cooling technologies, and energy conversion devices.</p>","PeriodicalId":49237,"journal":{"name":"Asia-Pacific Journal of Chemical Engineering","volume":"21 4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apj.70245","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662826","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
The Effect of Sintering Flue Gas Composition on NO Reduction in Coke 烧结烟气组成对焦炭中NO还原的影响
IF 1.7 4区 工程技术
Asia-Pacific Journal of Chemical Engineering Pub Date : 2026-08-04 Epub Date: 2026-05-01 DOI: 10.1002/apj.70240
Canbin Huang, Tuo Zhou, Hao Xie, Jinjiang Zhao, Man Zhang, Hairui Yang
{"title":"The Effect of Sintering Flue Gas Composition on NO Reduction in Coke","authors":"Canbin Huang,&nbsp;Tuo Zhou,&nbsp;Hao Xie,&nbsp;Jinjiang Zhao,&nbsp;Man Zhang,&nbsp;Hairui Yang","doi":"10.1002/apj.70240","DOIUrl":"https://doi.org/10.1002/apj.70240","url":null,"abstract":"<p>The strategy of substituting combustion air with sintering flue gas in circulating fluidized bed (CFB) systems provides a low-cost and highly efficient approach for the purification of sintering off-gas. In this work, coke was employed as the reducing agent, and a high-temperature vertical tube furnace was used to simulate the dense-phase region of a CFB to examine the reduction of NO by coke over the temperature range of 750°C–950°C. Research findings indicate that as the temperature increases, the NO reduction efficiency by coke rises significantly from 0.8% to 44.5%. With a gradual increase in NO feed concentration, the NO conversion rate at 950°C progressively decreases to 41.1%. The addition of CO enhances NO conversion, with higher CO feed concentrations leading to greater NO conversion rates. At 950°C, as the CO<sub>2</sub> concentration increases, the NO conversion rate gradually declines from approximately 42% to 30%, suggesting that CO<sub>2</sub> inhibits the NO reduction reaction by coke. This study systematically analyzes the reaction characteristics of NO with coke within the typical oxygen concentration range of sintering flue gas, providing an experimental basis for the co-processing of sintering flue gas in CFB.</p>","PeriodicalId":49237,"journal":{"name":"Asia-Pacific Journal of Chemical Engineering","volume":"21 4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apj.70240","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662363","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
Green Fuel Combustion Synthesis of CeO2 and Ag/CeO2 Nanoparticles for Photocatalytic and Antibacterial Applications 绿色燃料燃烧合成用于光催化和抗菌应用的CeO2和Ag/CeO2纳米颗粒
IF 1.7 4区 工程技术
Asia-Pacific Journal of Chemical Engineering Pub Date : 2026-08-04 Epub Date: 2026-03-17 DOI: 10.1002/apj.70242
T. N. Ravishankar, J. R. Adarsha, R. Mohan Reddy, S. Harisha, A. Ananda, B. M. Shilpa
{"title":"Green Fuel Combustion Synthesis of CeO2 and Ag/CeO2 Nanoparticles for Photocatalytic and Antibacterial Applications","authors":"T. N. Ravishankar,&nbsp;J. R. Adarsha,&nbsp;R. Mohan Reddy,&nbsp;S. Harisha,&nbsp;A. Ananda,&nbsp;B. M. Shilpa","doi":"10.1002/apj.70242","DOIUrl":"https://doi.org/10.1002/apj.70242","url":null,"abstract":"<p>Silver-doped cerium oxide nanoparticles (Ag/CeO<sub>2</sub> NPs) were synthesized using <i>Ricinus communis</i> seed extract as a bio-derived fuel in a solution combustion method. The combustion reaction, carried out at 450°C with AgNO<sub>3</sub> and (NH<sub>4</sub>)<sub>2</sub>[Ce (NO<sub>3</sub>)<sub>6</sub>] as metal precursors, produced CeO<sub>2</sub> and Ag/CeO<sub>2</sub> NPs. Their structure and morphology were estimated by P-XRD and TEM, which confirmed the formation of cerianite with cubic fluorite CeO<sub>2</sub> crystal structure, while SEM revealed a porous morphology characteristic of combustion-driven gas evolution. EDS revealed the presence of Ce, O, and Ag in the Ag/CeO<sub>2</sub> NPs. Optical studies, including UV–Vis and PL, showed that Ag incorporation narrowed the band gap and improved charge-carrier separation, contributing to enhanced visible-light activity. XPS analysis verified the successful incorporation of Ag species into the CeO<sub>2</sub> lattice. Among the investigated NPs, the 0.3 wt% Ag/CeO<sub>2</sub> sample exhibited the lowest PL intensity, indicating improved charge-carrier separation, which was further supported by its high quantum yield (0.789). These results correlate with its enhanced photocatalytic activity. The nanomaterials were evaluated for dye degradation, Cr (VI) reduction, photocatalytic H<sub>2</sub> evolution, and antibacterial activity. The influences of pH, catalyst dosage, dye concentration, light intensity, radical scavengers, and recyclability were also systematically assessed. Overall, the study presents a sustainable synthesis approach for high-performance Ag/CeO<sub>2</sub> NPs with broad potential in environmental remediation and antimicrobial applications.</p>","PeriodicalId":49237,"journal":{"name":"Asia-Pacific Journal of Chemical Engineering","volume":"21 4","pages":""},"PeriodicalIF":1.7,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apj.70242","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662549","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
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