Chemical Engineering Science最新文献

{"title":"Modeling multi-pollutant emission concentrations in municipal solid waste incineration processes using virtual-real data-driven approach","authors":"Tianzheng Wang, Jian Tang, Loai Aljerf, Yongqi Liang, Junfei Qiao","doi":"10.1016/j.ces.2025.121358","DOIUrl":"https://doi.org/10.1016/j.ces.2025.121358","url":null,"abstract":"The concentration of pollutant emissions during the municipal solid waste incineration (MSWI) process has a significant global impact on the atmospheric environment. Developing effective pollutant emission models to support optimization for emission reduction is a critical challenge that must be addressed. To address the challenges of high uncertainty and poor interpretability in pollutant emission concentration models for the MSWI process, this article proposes a novel method for modeling multi-pollutant emission concentrations using a virtual-real data-driven method. First, a whole-process numerical simulation model for the MSWI process is developed using a multi-software coupling strategy. Virtual simulation mechanism dataset under diverse operating conditions is generated through a combination of orthogonal experimental design and implementation. Subsequently, to tackle the challenge of limited sample size resulting from the high cost of simulation, virtual sample generation (VSG) is utilized to enhance the dataset. Finally, a virtual-real data-driven multi-pollutant emission concentration model is developed, leveraging the Interval Type-2 Fuzzy Broad Learning System (IT2FBLS) and the Linear Regression Decision Tree (LRDT) algorithm with a main-compensation mechanism. The proposed methodology is validated using data from an MSWI power plant in Beijing.","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"102 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143393372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of film characteristics on bursting behavior of a bubble in gas space","authors":"Ziyue Wang ,&nbsp;Liansheng Liu","doi":"10.1016/j.ces.2025.121355","DOIUrl":"10.1016/j.ces.2025.121355","url":null,"abstract":"<div><div>As marine pollution intensifies, pollutants concentrate on the surface of marine bubbles and are usually ’regurgitated’ into the atmosphere in the form of aerosols, leading to ecological contamination and disease propagation. The bubble rupture in gas space above the air–sea interface is one of the primary sources of aerosols, but the interplay between bubbles and aerosols remains unclear. This study demonstrates that the instability of the bubble film plays a critical role in governing the formation and characteristics of aerosols. Once a bubble bursts in gas space, a hole rim recedes and soon destabilizes into capillary waves. A centrifugal force, caused by a curvilinear motion of the receding rim, leads to the radial spreading and destabilization of the hole rim in a Rayleigh–Taylor type. Meanwhile, a Kelvin–Helmholtz instability is strengthened due to the shear between the spreading rim and the surrounding atmosphere. Both instabilities contribute to the rim instability of the broken curved film. Specifically, this study quantitatively examines how surface tension, viscosity, bubble radius, and film thickness affect the instability dynamics and bursting intensity through comprehensive experiments. The results have significant scientific implications and practical application value for clarifying the transmission of pollutants at the air–sea interface and the physicochemical properties of composite aerosols.</div><div><strong>Synopsis:</strong> This study investigates the behaviors of aerosol formation from bubble bursting in gas space above the air–sea interface, offering new insights into marine pollution transmission.</div></div>","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"307 ","pages":"Article 121355"},"PeriodicalIF":4.1,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143393314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gas flow in a new type of rotating packed bed with gas baffles","authors":"Ting Cheng, Fuming Miao, Ruize Shang, Youzhi Liu, Weizhou Jiao","doi":"10.1016/j.ces.2025.121353","DOIUrl":"https://doi.org/10.1016/j.ces.2025.121353","url":null,"abstract":"Cross-flow rotating packed bed is a popular reactor for process intensification, but it has an inherent disadvantage that the gas residence time is very short. A novel gas baffle-rotating packed bed (GB-RPB) was introduced to prolong the gas residence time, and the gas flow in GB-RPB was simulated using a three-dimensional computational fluid dynamics model. The realizable k-ε model was used for the prediction of turbulence and a porous media model was used for the packing. The effects baffle characteristics on gas dynamics and turbulence within GB-RPB were investigated. It was found that mass transfer was significantly enhanced due to the vortex flow pattern and intensified turbulence around baffles. Specifically GB-RPB with inner baffles and outer baffles spaced 20 mm apart (1/3 rotor height) significantly extended the gas residence time, so that the COD degradation rate in pesticide-laden wastewater was increased by over 10 % compared to conventional RPB.","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"15 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143385271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Using of phosphoric acid to dissolve phosphate ore flotation tailings for stepwise separation of calcium and magnesium values","authors":"Hannian Gu, Guiyong Zhou, Hanjie Wen, Ning Wang","doi":"10.1016/j.ces.2025.121356","DOIUrl":"https://doi.org/10.1016/j.ces.2025.121356","url":null,"abstract":"Phosphate ore flotation tailings (POFTs) are waste in phosphate ore processing process, rich in Ca, Mg, and P. A phosphoric acid leaching route was developed to recover these resources. The results showed that Ca and Mg in POFTs could be separated by phosphoric acid leaching, generating Ca(H₂PO₄)₂ and then decomposing to form CaHPO₄ precipitates at 80 ℃. The leaching efficiencies of Ca and Mg were 16.64 and 93.44 %, respectively, using 3.0 mol/L phosphoric acid solution at 80 ℃ for 120 min with the liquid–solid ratio of 5 mL/g. The recovery of Ca and Mg in phosphoric acid leachate was achieved in the precipitates of CaC₂O₄·H₂O and MgNH₄PO₄·6H₂O by adding H₂C₂O₄ and NH₃·H₂O in steps. The Mg-recovered leachate was evaporated to yield (NH₄)₂HPO₄/NH₄H₂PO₄ fertilizer, converting P into valuable products. Economically, treating 1 ton of POFTs yields a $155 profit, adapting to valorization of Ca, Mg and P in POFTs waste.","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"11 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143385273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Turning waste into energy through a solar-powered multi-generation system with novel machine learning-based life cycle optimization","authors":"Jianzhao Zhou ,&nbsp;Jingzheng Ren ,&nbsp;Liandong Zhu ,&nbsp;Chang He","doi":"10.1016/j.ces.2025.121348","DOIUrl":"10.1016/j.ces.2025.121348","url":null,"abstract":"<div><div>This study presents an innovative solar-powered multi-generation system aiming at converting waste into diverse forms of energy, including dimethyl ether (DME), hydrogen, power, and heat. Concurrently, a systematic and computationally efficient optimization framework is developed to unlock the maximum potential of this complex waste-to-energy system. The system integrates plasma gasification, DME synthesis, combining heat and power generation, solar-driven electrolysis and desalination. Life cycle assessment and techno-economic assessment have been implemented for system comprehensive optimization which is formulated as a large-scale nonlinear program (NLP) model. Based on rigorous process simulation results, a machine learning-based framework is proposed to accelerate optimization. Using medical waste treatment as a case study, the solution of the NLP problem reveals optimal levelized costs per kWh energy range from $0.1064 to $0.1304, with total life cycle carbon emissions ranging from 0.2748 to 0.5083 kg CO₂-eq/kWh energy. The findings demonstrate the proposed system’s environmental sustainability and economic viability.</div></div>","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"307 ","pages":"Article 121348"},"PeriodicalIF":4.1,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143375718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Successive charging and discharging behaviour of a bio-organic sustainable phase change material and its instabilities","authors":"Amrita Sharma,&nbsp;S. Abhinand,&nbsp;Hardik Kothadia","doi":"10.1016/j.ces.2025.121354","DOIUrl":"10.1016/j.ces.2025.121354","url":null,"abstract":"<div><div>A bio-organic phase change material (PCM) is a viable candidate for thermal storage systems because of its high latent heat capacity and sustainability. The present study is motivated by the aim of analysing the actual behaviour of an economical organic PCM with its instabilities to meet the thermal energy storage requirements. Successive charging and discharging experiments are conducted on coconut oil as PCM with varying heat transfer fluid (HTF) inlet temperatures of 50 °C, 40 °C, and 30 °C for melting and 5 °C, 10 °C, and 15 °C for solidification across different mass flow rates. PCM temperature distributions are measured radially, axially, and diametrically. Three distinct stages are observed during melting, marked by a notable temperature drop in the intermediate stage. The temperature dip during the melting is found to be prominent under higher HTF temperatures. An issue like supercooling occurs, which gets reduced under lower initial PCM temperatures and diminishes further under slower cooling rates. Adjusting the HTF inlet temperature proved more advantageous during coconut oil melting, with the 50 °C case storing 26.8 % more energy than the 30 °C case, while solidification at 5 °C stored 7.8 % more energy than at 15 °C. Meanwhile, the mass flow rate has a minimal influence, showing only 7.4 % and 5.8 % deviations in charging and discharging when halved. The analysis of the behaviour provides in-depth insights into the implementation of an organic-bio-friendly PCM.</div></div>","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"307 ","pages":"Article 121354"},"PeriodicalIF":4.1,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143375719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantitative analysis of physical absorption behavior of CO2 in imidazolium-based ionic liquids containing bis(trifluoromethylsulfonyl)imide and tetrafluoroborate anion by Raman spectroscopy","authors":"Yuya Hiraga, Yuta Takikawa, Moe Tatsushima, Masaru Watanabe","doi":"10.1016/j.ces.2025.121352","DOIUrl":"https://doi.org/10.1016/j.ces.2025.121352","url":null,"abstract":"To achieve a carbon–neutral society, ionic liquids (ILs) are widely used as solvents for CO&lt;sub&gt;2&lt;/sub&gt; separation/recovery and as catalysts for CO&lt;sub&gt;2&lt;/sub&gt; fixation reactions. Understanding the dissolution behavior of CO&lt;sub&gt;2&lt;/sub&gt; is critical in these applications. Raman spectroscopy enables &lt;em&gt;in-situ&lt;/em&gt; analysis of CO&lt;sub&gt;2&lt;/sub&gt; dissolution behavior but suffers from limited quantitativeness. In this study, spectral analysis based on Raman spectroscopy was conducted for CO&lt;sub&gt;2&lt;/sub&gt; dissolution in four imidazolium-based ILs containing the [Tf&lt;sub&gt;2&lt;/sub&gt;N] (bis(trifluoromethylsulfonyl)imide) and the [BF&lt;sub&gt;4&lt;/sub&gt;] (tetrafluoroborate) anion temperature at 298–333 K and pressure up to 6.3 MPa. These four types were selected as model ionic liquids with different cation chain lengths and CO&lt;sub&gt;2&lt;/sub&gt; solubility ranges. The peak intensity caused by symmetric stretching vibrations of CO&lt;sub&gt;2&lt;/sub&gt; (about 1380 cm&lt;sup&gt;−1&lt;/sup&gt;) increased as the amount of dissolved CO&lt;sub&gt;2&lt;/sub&gt; increased although the peak intensity of IL (about 1420 cm&lt;sup&gt;−1&lt;/sup&gt;) did not change. The intensity ratios for the peak of CO&lt;sub&gt;2&lt;/sub&gt; against that of IL were defined to assess Raman spectra quantitatively. A comparison of the obtained intensity ratios with CO&lt;sub&gt;2&lt;/sub&gt; solubility (CO&lt;sub&gt;2&lt;/sub&gt; mole ratio to IL: &lt;span&gt;&lt;span style=\"\"&gt;&lt;/span&gt;&lt;span data-mathml='&lt;math xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;mrow is=\"true\"&gt;&lt;msubsup is=\"true\"&gt;&lt;mi is=\"true\"&gt;x&lt;/mi&gt;&lt;msub is=\"true\"&gt;&lt;mtext is=\"true\"&gt;CO&lt;/mtext&gt;&lt;mn is=\"true\"&gt;2&lt;/mn&gt;&lt;/msub&gt;&lt;mo is=\"true\"&gt;&amp;#x2032;&lt;/mo&gt;&lt;/msubsup&gt;&lt;mo linebreak=\"goodbreak\" linebreakstyle=\"after\" is=\"true\"&gt;=&lt;/mo&gt;&lt;mrow is=\"true\"&gt;&lt;msub is=\"true\"&gt;&lt;mi is=\"true\"&gt;n&lt;/mi&gt;&lt;msub is=\"true\"&gt;&lt;mtext is=\"true\"&gt;CO&lt;/mtext&gt;&lt;mn is=\"true\"&gt;2&lt;/mn&gt;&lt;/msub&gt;&lt;/msub&gt;&lt;mo stretchy=\"false\" is=\"true\"&gt;/&lt;/mo&gt;&lt;msub is=\"true\"&gt;&lt;mi is=\"true\"&gt;n&lt;/mi&gt;&lt;mtext is=\"true\"&gt;IL&lt;/mtext&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/mrow&gt;&lt;/math&gt;' role=\"presentation\" style=\"font-size: 90%; display: inline-block; position: relative;\" tabindex=\"0\"&gt;&lt;svg aria-hidden=\"true\" focusable=\"false\" height=\"3.125ex\" role=\"img\" style=\"vertical-align: -1.158ex;\" viewbox=\"0 -846.5 7370.6 1345.3\" width=\"17.119ex\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"&gt;&lt;g fill=\"currentColor\" stroke=\"currentColor\" stroke-width=\"0\" transform=\"matrix(1 0 0 -1 0 0)\"&gt;&lt;g is=\"true\"&gt;&lt;g is=\"true\"&gt;&lt;g is=\"true\"&gt;&lt;use xlink:href=\"#MJMATHI-78\"&gt;&lt;/use&gt;&lt;/g&gt;&lt;g is=\"true\" transform=\"translate(572,314)\"&gt;&lt;use transform=\"scale(0.707)\" xlink:href=\"#MJMAIN-2032\"&gt;&lt;/use&gt;&lt;/g&gt;&lt;g is=\"true\" transform=\"translate(572,-335)\"&gt;&lt;g is=\"true\"&gt;&lt;use transform=\"scale(0.707)\" xlink:href=\"#MJMAIN-43\"&gt;&lt;/use&gt;&lt;use transform=\"scale(0.707)\" x=\"722\" xlink:href=\"#MJMAIN-4F\" y=\"0\"&gt;&lt;/use&gt;&lt;/g&gt;&lt;g is=\"true\" transform=\"translate(1061,-107)\"&gt;&lt;use transform=\"scale(0.5)\" xlink:h","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"53 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143375717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dynamic imaging of the effect of pore microstructure factors on fine particle migration and deposition during fluid flow through porous media","authors":"Ke Wang ,&nbsp;Chenzi Shi ,&nbsp;Shuangyi Gong ,&nbsp;Kuhan Chellappah ,&nbsp;Philip J. Withers ,&nbsp;Kevin G. Taylor ,&nbsp;Robert Atwood ,&nbsp;Lin Ma","doi":"10.1016/j.ces.2025.121346","DOIUrl":"10.1016/j.ces.2025.121346","url":null,"abstract":"<div><div>The migration and deposition of fine particles in porous materials is critical in industries such as energy, pharmaceuticals, and environmental engineering. Using 3D time-lapse synchrotron X-ray imaging, we observe fine particles invading porous media, analyzing the effects of pore size and heterogeneity at both pore and macro scales. Glass beads model homogeneous and heterogeneous conditions, revealing a sequence of deposition processes: surface attachment, throat bridging, blocking, pore filling, compaction, and migration. A critical throat-to-particle size ratio of 1.7 governs deposition behavior. At the macro-scale, heterogeneities like beddings and flow pathways influence fines migration and deposition. Based on dynamic 3D imaging, we propose a mechanism for fines behavior in heterogeneous porous media. These findings enhance understanding of fines migration, offering a predictive framework for managing formation damage and optimizing filter cake design in drilling and clean energy applications.</div></div>","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"307 ","pages":"Article 121346"},"PeriodicalIF":4.1,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143371564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assembly of ZSM-5 crystals on biomass platform via nucleus induction method for robust methanol aromatization","authors":"Caiyan Li ,&nbsp;Yating Han ,&nbsp;Tingjun Fu ,&nbsp;Ruwei Yao ,&nbsp;Jian Tian ,&nbsp;Zhong Li ,&nbsp;Guowu Zhan","doi":"10.1016/j.ces.2025.121329","DOIUrl":"10.1016/j.ces.2025.121329","url":null,"abstract":"<div><div>The design of zeolite catalysts with hierarchically porous structures is critical to promote their application in many diffusion-limited reactions. Herein, silicon-rich biomass (<em>viz.</em>, rice husk) with considerable macropores was exploited as a platform for the assembly of ZSM-5 crystals to fabricate zeolite catalysts with hierarchically porous structures. When rice husk was utilized as a sole silicon source, only a limited number of ZSM-5 particles (size of 5.41 μm) were assembled on the platform. Unfortunately, the resultant catalyst suffered a poor catalytic lifetime of 17 h over the methanol aromatization reaction due to the strong diffusion limitation and the increased coke deposition. In contrast, the addition of an extra liquid silicon source (tetraethyl orthosilicate) promoted the assembly of smaller ZSM-5 particles (size of 3.92 μm). Thus, the catalytic lifetime increased to 48 h with a high aromatic selectivity of 26.7 %. Interestingly, the particle sizes of ZSM-5 assembled on the biomass platform were further decreased to 0.75 μm based on a nucleus induction method. Accordingly, the catalytic lifetime increased to 70 h with an aromatic selectivity of 32.8 %. The resultant catalysts with small particles and weak surface acidity could ensure the stable formation of dimethylcyclopentenyl intermediates, which is the key to exhibiting a high aromatization performance. This work provides a strategy for the assembly of small-sized ZSM-5 crystals on the biomass-derived platform (bio-SiO₂) for achieving a robust methanol aromatization reaction.</div></div>","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"307 ","pages":"Article 121329"},"PeriodicalIF":4.1,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143371543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Zeolite-catalyzed alkylation of lignincellulose-derived phenols and furan alcohols for synthesis of sustainable aviation fuel","authors":"Ruijing Yang, Chengxiang Shi, Zhensheng Shen, Sichao Yang, Lun Pan, Zhenfeng Huang, Xiangwen Zhang, Ji-Jun Zou","doi":"10.1016/j.ces.2025.121343","DOIUrl":"https://doi.org/10.1016/j.ces.2025.121343","url":null,"abstract":"Synthesis of biofuels from lignocellulosic depolymerization products is a promising path. However, the commonly used feedstocks are the downstream depolymerization products of lignocellulose. Here we report an effective method to produce biofuels from upstream depolymerization products of lignocellulose (i.e. lignin derived phenols and holocellulose derived furan alcohols). Phenols and furan alcohols undergo alkylation reaction with zeolite as catalyst, and then alkylation products can be turned into hydrocarbon fuel through hydrodeoxygenation reaction. For alkylation reaction, the key step is the electrophilic substitution reaction of carbocation formed under the catalysis of acid. For furfuryl alcohol with simple structure, the catalyst with large pore size and moderate acid content is sufficient to catalyze the reaction. For 5-hydroxymethylfurfural with higher steric hindrance, more acidic catalyst is required to promote the formation of carbocation. The two alkylation reactions can achieve both high conversion of furfural alcohol and selectivity of alkylation production over 85 %. The branched monocycloalkane fuel obtained by hydrodeoxygenation of alkylation products has a density of 0.807 g/cm³ (20 °C) and a freezing point less than −60 °C, meeting the requirements of RP-3 and is expected to become a main component of aviation jet fuel. This work provides ideas for the direct use of biomass depolymerization products to produce bio-aviation fuels with excellent performance.","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"1 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143371577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}