Chemical Engineering and Processing - Process Intensification最新文献

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Rapid method for the prediction of basic performance data of a packed bed with a structured packing using a simple CFD simulation 基于简单CFD模拟的结构化填料床基本性能数据快速预测方法
IF 3.9 3区 工程技术
Chemical Engineering and Processing - Process Intensification Pub Date : 2026-03-01 Epub Date: 2026-01-06 DOI: 10.1016/j.cep.2026.110698
Halina Murasiewicz , Jerzy Maćkowiak , Jan F. Maćkowiak , Reiner Chromik
{"title":"Rapid method for the prediction of basic performance data of a packed bed with a structured packing using a simple CFD simulation","authors":"Halina Murasiewicz ,&nbsp;Jerzy Maćkowiak ,&nbsp;Jan F. Maćkowiak ,&nbsp;Reiner Chromik","doi":"10.1016/j.cep.2026.110698","DOIUrl":"10.1016/j.cep.2026.110698","url":null,"abstract":"<div><div>To date, developing robust design principles for distillation and absorption processes using random and structured packing has necessitated expensive and time-consuming experimental investigations. These studies are essential for predicting basic performance data (BPD), such as flooding gas velocity and pressure drop within the operating range. The upper limit, the flooding line, has traditionally been estimated primarily through experiments on air-water simulator plants. This established procedure, while effective, is very costly and requires significant time and effort, presenting a major challenge for manufacturers and researchers seeking to reduce this reliance on physical testing.</div><div>In this work, a novel method is presented to address this challenge. The proposed approach is based on a physical model of a suspended bed of droplets (SBD) combined with CFD simulation. This methodology allows for the generation of a packing's complete operating range, including the flooding line, without any need for experimental data.</div><div>To validate this new concept, an experimental hydraulic investigation using a laboratory distillation plant under low and normal pressure with various test systems were conducted. The results were then compared with data from CFD simulations for the commercial structured packing R500Y from RVT. A satisfactory agreement was observed between the experimental and simulated data, with a deviation of less than ±10%. This successful validation demonstrates that this approach offers a simple, fast, and reliable method to significantly reduce the experimental effort required for modeling, optimizing, and predicting the performance of structured packing.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"221 ","pages":"Article 110698"},"PeriodicalIF":3.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145974070","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
From response surface methodology to artificial intelligence: process intensification frameworks for sustainable bioethanol production 从响应面方法到人工智能:可持续生物乙醇生产的过程强化框架
IF 3.9 3区 工程技术
Chemical Engineering and Processing - Process Intensification Pub Date : 2026-03-01 Epub Date: 2026-01-03 DOI: 10.1016/j.cep.2026.110697
Saravana Kannan Thangavelu
{"title":"From response surface methodology to artificial intelligence: process intensification frameworks for sustainable bioethanol production","authors":"Saravana Kannan Thangavelu","doi":"10.1016/j.cep.2026.110697","DOIUrl":"10.1016/j.cep.2026.110697","url":null,"abstract":"<div><div>The global transition toward low-carbon and sustainable energy systems has intensified research on bioethanol production from lignocellulosic and waste biomass, yet large-scale deployment remains limited by process complexity, feedstock heterogeneity, and fragmented optimization strategies that inadequately capture nonlinear interactions and multi-objective trade-offs. This review critically synthesizes recent advances in process intensification and optimization across the entire bioethanol production chain, encompassing pretreatment, hydrolysis, fermentation, and product recovery. Conventional statistical tools, including Response Surface Methodology, Central Composite Design, and Box–Behnken Design, remain valuable for structured experimentation and identification of local optima with minimal experimental effort; however, their predictive robustness diminishes in highly nonlinear, multivariable systems. In contrast, artificial intelligence and machine learning approaches such as Artificial Neural Networks, Support Vector Machines, Genetic Algorithms, Particle Swarm Optimization, and the Non-dominated Sorting Genetic Algorithm II enable accurate nonlinear modeling, global optimization, and explicit handling of conflicting objectives related to yield, energy consumption, inhibitor formation, and cost. Particular emphasis is placed on emerging hybrid frameworks that integrate statistical design, AI-based surrogate models, and metaheuristic optimization to enhance prediction fidelity, process efficiency, and scalability. Furthermore, advances in omics-guided metabolic engineering, green solvent pretreatments, lignin valorization, and digital twins, coupled with real-time AI-driven process control.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"221 ","pages":"Article 110697"},"PeriodicalIF":3.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145923454","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
Selectivity engineering with single-feed hybrid reactive distillation (RD) columns for a wider range of reaction networks - Part I : Elimination of complex hybrid RD configurations for two equilibrium reactions 选择性工程与单进料混合反应精馏(RD)塔的更广泛的反应网络-第一部分:消除复杂的混合RD配置为两个平衡反应
IF 3.9 3区 工程技术
Chemical Engineering and Processing - Process Intensification Pub Date : 2026-03-01 Epub Date: 2025-12-29 DOI: 10.1016/j.cep.2025.110687
Antarim Dutta, Md. Siraj Alam, Shabih Ul Hasan
{"title":"Selectivity engineering with single-feed hybrid reactive distillation (RD) columns for a wider range of reaction networks - Part I : Elimination of complex hybrid RD configurations for two equilibrium reactions","authors":"Antarim Dutta,&nbsp;Md. Siraj Alam,&nbsp;Shabih Ul Hasan","doi":"10.1016/j.cep.2025.110687","DOIUrl":"10.1016/j.cep.2025.110687","url":null,"abstract":"<div><div>This work introduces the first conceptual design framework for reactive distillation (RD) columns in the equilibrium reaction-extent space, enabling feasible designs with desired selectivity in two-equilibrium-reaction systems. Our previous work on selectivity engineering using hybrid RD configurations in the traditional mole-fraction space suffers from dimensionality constraints, and achieving desired selectivity is challenging in multireaction systems sensitive to component volatility. Existing algorithms for two-equilibrium-reaction systems require complex hybrid RD columns for more than three components and are typically limited to five. To address these challenges, we propose a novel conceptual design algorithm that enables the desired selectivity of intermediate products. Formulated in the equilibrium reaction-extent space, the methodology employs a combined graphical-simulation approach. The locus of equilibrium reaction extents along the RD column is determined for the desired selectivity, and its intersection with the locus of a single reactive stage RD-obtained by varying separation attributes-identifies feasible RD designs. Demonstrated via ethyl methyl carbonate production in both the design spaces, the method, currently applicable to two equilibrium reactions with intermediate-volatility reactants and single-feed hybrid RD columns; however, it can be extended to three equilibrium reactions and multi-feed configurations.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"221 ","pages":"Article 110687"},"PeriodicalIF":3.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145923580","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
Experimental study on the characteristics of magnesium-based composite inhibitor inhibiting coal spontaneous combustion 镁基复合缓燃剂抑制煤自燃特性的实验研究
IF 3.9 3区 工程技术
Chemical Engineering and Processing - Process Intensification Pub Date : 2026-03-01 Epub Date: 2026-01-20 DOI: 10.1016/j.cep.2026.110715
Gang Bai , Shuoshuo Wang , Xueming Li , Ge Huang , Fengwei Dai , Xun Zhang
{"title":"Experimental study on the characteristics of magnesium-based composite inhibitor inhibiting coal spontaneous combustion","authors":"Gang Bai ,&nbsp;Shuoshuo Wang ,&nbsp;Xueming Li ,&nbsp;Ge Huang ,&nbsp;Fengwei Dai ,&nbsp;Xun Zhang","doi":"10.1016/j.cep.2026.110715","DOIUrl":"10.1016/j.cep.2026.110715","url":null,"abstract":"<div><div>To address single inhibitors' drawbacks (low efficiency, short duration), this study compounds magnesium chloride hexahydrate with high-stability Mg(OH)<sub>2</sub>, based on their stage-specific inhibition characteristics during coal oxidation, aiming to optimize inhibitors. Using contact angle tests, synchronous thermal analysis, in-situ infrared, and temperature-programmed oxidation, it explores the composite's effects on coal oxidation parameters/microgroups and its inhibition on coal spontaneous combustion.Results show inhibited coal has ∼30° lower contact angle (enhanced hydrophilicity, uniform particle size), higher characteristic temperature than raw coal, increased low-temperature oxidation heat absorption, less net heat release, and higher apparent activation energy across four oxidation stages. The optimal ratio is Mg(OH)<sub>2</sub>:MgCl<sub>2</sub>=1:1. The composite acts by reducing coal's active groups (hydroxyl, methyl/methylene, carbon-oxygen intermediates) and increasing stable ether bonds, it also lowers CO volume fraction and oxygen consumption, with inhibition rate always &gt;40 %. Mechanistically, At low temperatures, MgCl<sub>2</sub>'s strong water absorption forms a water film to isolate oxygen, and the decomposition product Mg<sup>2+</sup> reacts with ROO• and Ar-OH to form a stable coordination compound with bidentate coordination bonds. Cl<sup>−</sup> and ROO• undergo a single electron transfer reaction to quench ROO•; appropriate Mg(OH)<sub>2</sub> enhances MgCl<sub>2</sub>'s water absorption. At high temperatures, Mg(OH)<sub>2</sub> thermally decomposes into a MgO protective layer and absorbs heat during decomposition.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"221 ","pages":"Article 110715"},"PeriodicalIF":3.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146023422","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
Study on the characteristics of phenol degradation by microwave radiation over NiO/BC catalyst NiO/BC催化剂微波辐射降解苯酚的特性研究
IF 3.9 3区 工程技术
Chemical Engineering and Processing - Process Intensification Pub Date : 2026-03-01 Epub Date: 2026-01-23 DOI: 10.1016/j.cep.2026.110720
JIANG Xi , PANG Yunji , ZHANG Tiejun
{"title":"Study on the characteristics of phenol degradation by microwave radiation over NiO/BC catalyst","authors":"JIANG Xi ,&nbsp;PANG Yunji ,&nbsp;ZHANG Tiejun","doi":"10.1016/j.cep.2026.110720","DOIUrl":"10.1016/j.cep.2026.110720","url":null,"abstract":"<div><div>This study prepared a biochar-supported nickel oxide (NiO/BC) catalyst for the microwave-catalyzed degradation of gaseous phenol, aiming to investigate the degradation mechanism and pathway regulation. By optimizing preparation and reaction parameters, it was found that at a Ni loading of 6 wt% and a microwave power of 480 W, the gas-phase products accounted for 98.6% of the total products, with optimal selectivity for H₂ and CO in the syngas. Characterization results indicated that NiO was in-situ reduced to metallic Ni nanoparticles during the reaction, forming the key catalytically active centers that synergistically catalyzed cracking and hydrogenation reactions. This process primarily converted phenol into syngas (H₂ + CO) and long-chain alkanes (tetradecane). The study further revealed that excessively high microwave power caused the sintering of Ni particles, resulting in catalyst deactivation. This research elucidates the dynamic evolution of the catalyst under microwave irradiation and the directed conversion mechanism of phenol, providing a scientific basis for developing efficient and stable microwave-catalyzed technologies for the resource treatment of organic pollutants.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"221 ","pages":"Article 110720"},"PeriodicalIF":3.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074184","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
Design, optimization and manufacturing of a novel microfluidic device for nano-andrographolide preparation 新型纳米穿心莲内酯制备微流控装置的设计、优化与制造
IF 3.9 3区 工程技术
Chemical Engineering and Processing - Process Intensification Pub Date : 2026-03-01 Epub Date: 2026-01-20 DOI: 10.1016/j.cep.2026.110718
Yimin Wei , Chen Gong , Su Wang , Xin Yuan , Yirong Feng , Ning Zhu , Wei He , Shuangfei Zhao
{"title":"Design, optimization and manufacturing of a novel microfluidic device for nano-andrographolide preparation","authors":"Yimin Wei ,&nbsp;Chen Gong ,&nbsp;Su Wang ,&nbsp;Xin Yuan ,&nbsp;Yirong Feng ,&nbsp;Ning Zhu ,&nbsp;Wei He ,&nbsp;Shuangfei Zhao","doi":"10.1016/j.cep.2026.110718","DOIUrl":"10.1016/j.cep.2026.110718","url":null,"abstract":"<div><div>Precise management of particle size and distribution is crucial for nanomedicine performance. In this study, using the anti-cancer medicine andrographolide as a typical insoluble medicine, we present a systematic approach to the design, optimization, and manufacturing of a novel microfluidic device for high-throughput and size-tunable preparation of nanomedicines. By integrating Central Composite Rotatable Design (CCRD) with computational fluid dynamics (CFD), we designed and optimized a new microfluidic structure. The optimized structure demonstrated superior mixing efficiency and low pressure drop in water-water systems, achieving a higher performance index (PI) in oil-ethanol systems compared to existing microdevices. The microfluidic field device achieves size-tunable preparation of nano-andrographolide (about 7.9 nm), which is reduced to 1.4% of the traditional method. This innovative method has the potential to advance the field of nanomedicine manufacturing.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"221 ","pages":"Article 110718"},"PeriodicalIF":3.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074186","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
High-frequency ultrasound separation of crude-oil-in-water microemulsions 水包原油微乳的高频超声分离
IF 3.9 3区 工程技术
Chemical Engineering and Processing - Process Intensification Pub Date : 2026-03-01 Epub Date: 2025-12-24 DOI: 10.1016/j.cep.2025.110676
Carlos Mario Giraldo Atehortua , Agesinaldo Matos Silva Jr. , Luiz Octávio Vieira Pereira , José Henrique Lopes , Flávio Buiochi , Marcos Sales Guerra Tsuzuki
{"title":"High-frequency ultrasound separation of crude-oil-in-water microemulsions","authors":"Carlos Mario Giraldo Atehortua ,&nbsp;Agesinaldo Matos Silva Jr. ,&nbsp;Luiz Octávio Vieira Pereira ,&nbsp;José Henrique Lopes ,&nbsp;Flávio Buiochi ,&nbsp;Marcos Sales Guerra Tsuzuki","doi":"10.1016/j.cep.2025.110676","DOIUrl":"10.1016/j.cep.2025.110676","url":null,"abstract":"<div><div>High-frequency ultrasound for separating crude-oil-in-water microemulsions-typical of oily wastewater from oil production—remains underexplored. We investigate 1 MHz standing-wave treatment using two resonant chambers (no-flow and flow), each with automatic resonance control. The acoustic radiation force promotes droplet migration, collisions, and coalescence, enhancing oil–water disengagement without chemical additives. Experiments varied input power and sonication time to assess separation performance for synthetic microemulsions with low oil content. In the no-flow regime, <span><math><mrow><mn>70</mn></mrow></math></span>% oil removal was achieved after 2 min at 40 W, versus 3.6% for a non-acoustic reference. In the flow regime (100 cm<span><math><msup><mrow></mrow><mrow><mn>3</mn></mrow></msup></math></span> min<sup>−1</sup>), 30 min at 80 W yielded nearly 66% removal, compared with 28% for the reference. These results demonstrate that MHz-range standing waves can deliver rapid, additive-free phase separation in compact equipment. The approach offers a promising complementary step for oily wastewater treatment, enabling reduced chemical demand, shortened residence times, and modular process integration.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"221 ","pages":"Article 110676"},"PeriodicalIF":3.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145923456","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
Synthesis and characterization of DC plasma-sputtered semiconductor oxide photoanodes to boost the photoelectro-Fenton removal of atrazine from sewage wastewater 直流等离子溅射半导体氧化物光阳极的合成与表征促进光电fenton去除污水中阿特拉津
IF 3.9 3区 工程技术
Chemical Engineering and Processing - Process Intensification Pub Date : 2026-03-01 Epub Date: 2026-01-30 DOI: 10.1016/j.cep.2026.110729
Ihsan H. Dakhil , Ammar S. Abbas
{"title":"Synthesis and characterization of DC plasma-sputtered semiconductor oxide photoanodes to boost the photoelectro-Fenton removal of atrazine from sewage wastewater","authors":"Ihsan H. Dakhil ,&nbsp;Ammar S. Abbas","doi":"10.1016/j.cep.2026.110729","DOIUrl":"10.1016/j.cep.2026.110729","url":null,"abstract":"<div><div>This study presents a novel approach for preparing photoanodes through plasma direct current sputtering (PDCS) of TiO<sub>2</sub> and ZnO semiconductor nanoparticles onto 304 L stainless-steel substrates. The synthesized photoanodes were comprehensively characterized using X-ray diffraction, field-emission scanning electron microscopy, energy-dispersive spectroscopy, atomic force microscopy, diffuse reflectance spectroscopy, and photoluminescence spectroscopy, confirming distinct crystalline structures and formation of interfacial TiNi<sub>3</sub>/ZnNi<sub>3</sub> phases. The photocatalytic performance was evaluated by measuring chemical oxygen demand (COD) reduction during atrazine degradation (10 mg.L<sup>−1</sup>), a concentration similar to those found in sewage, using a photoelectro-Fenton reactor equipped with an air-diffused porous graphite cathode under varying illumination conditions (dark, fluorescent light, and UV irradiation). The synergistic combination of photocatalysis, electrochemical oxidation, and Fenton chemistry demonstrated enhanced pollutant removal efficiency. Statistical analysis confirmed a significant performance enhancement between unmodified SS and prepared photoanodes. After 360 min at pH 3, the ZnO-deposited photoanode achieved superior performance, degrading 70.3% of atrazine under UV illumination, significantly outperforming the TiO<sub>2</sub>-deposited photoanode. Kinetic analysis revealed that the degradation process followed a second-order kinetic model. Ten-cycle reusability studies confirmed excellent practical durability, with 88.9% for the ZnO/SS photoanode. These findings demonstrate that PDCS represents an effective technology for producing high-performance photoanodes with enhanced stability and reusability for the degradation of persistent organic pollutants in environmental remediation applications.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"221 ","pages":"Article 110729"},"PeriodicalIF":3.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147421163","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
Dependence of flow pattern on column scale in bubble columns with internals 带内部气泡柱中流态与柱尺度的关系
IF 3.9 3区 工程技术
Chemical Engineering and Processing - Process Intensification Pub Date : 2026-03-01 Epub Date: 2026-01-19 DOI: 10.1016/j.cep.2026.110716
Nan Zhang , Xiaoping Guan , Kangjun Wang , Ning Yang
{"title":"Dependence of flow pattern on column scale in bubble columns with internals","authors":"Nan Zhang ,&nbsp;Xiaoping Guan ,&nbsp;Kangjun Wang ,&nbsp;Ning Yang","doi":"10.1016/j.cep.2026.110716","DOIUrl":"10.1016/j.cep.2026.110716","url":null,"abstract":"<div><div>Scale-up effects on the hydrodynamics in bubble columns are particularly critical for reactor design and optimization. However, unlike empty bubble columns, there remains a lack of comprehensive understanding of scale-up effects in the presence of vertical internals. To address the gap, this study investigated the effects of column scale on gas holdup, flow field and turbulence properties in the bubble columns with tube bundle internals at superficial gas velocity 0.12 m/s through CFD simulation. The predictions indicated that, the radial distribution of gas holdup becomes more uniform with scale-up. Moreover, as the column scale increases, the flow pattern in the empty columns consistently exhibits typical gulf-stream pattern. However, for the bubble columns with internals, the flow pattern shifts from the gulf-stream to a dual-circulation pattern with the flow reversal in the center. The effects of column scale on the turbulence properties are also completely different for the empty column and the column with internals. Mechanism analysis demonstrated that the gas holdup distribution governs the large-scale liquid circulation pattern, while turbulence viscosity plays a pivotal role in regulating circulation intensity. We believe that these findings could provide more insight for the design and scale-up of bubble column reactors with internals.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"221 ","pages":"Article 110716"},"PeriodicalIF":3.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146023429","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
Process intensification through furfural purification and reactive distillation in the furan based pathway to sustainable aviation fuel 呋喃基可持续航空燃料提纯和反应蒸馏过程强化研究
IF 3.9 3区 工程技术
Chemical Engineering and Processing - Process Intensification Pub Date : 2026-03-01 Epub Date: 2026-01-16 DOI: 10.1016/j.cep.2026.110711
Gabriel Contreras-Zarazúa
{"title":"Process intensification through furfural purification and reactive distillation in the furan based pathway to sustainable aviation fuel","authors":"Gabriel Contreras-Zarazúa","doi":"10.1016/j.cep.2026.110711","DOIUrl":"10.1016/j.cep.2026.110711","url":null,"abstract":"<div><div>In recent years, the aviation industry has intensified its efforts to reduce CO₂ emissions, and one of the most promising routes to produce sustainable aviation fuel is the furan route, in which the furfural purification and aldol condensation stages are crucial for the process efficiency. In this work, different process alternatives for both stages were studied, including azeotropic distillation and liquid-liquid extraction processes for the furfural purification stage, while reactive distillation alternatives are explored for the aldol condensation stage. The design considers the evaluation of sustainability indicators such as Total Annual Cost (TAC), Eco-Indicator 99, CO₂ emissions, and individual risk. The results indicate that azeotropic distillation is the most efficient and cost-effective alternative, with a TAC 50% lower and 3% less CO₂ emissions than the LLE options. Additionally, methanol recovery, which is a byproduct of the purification stage, generates revenue that covers nearly 100% of operational costs, significantly improving economic sustainability. Finally, in the aldol condensation stage, conventional reaction–separation processes were compared with intensified configurations such as reactive distillation and thermally coupled reactive distillation. The latter showed the best performance, reducing utility costs by 60%, emissions by 66%, and individual risk by 40%, despite an 18% higher investment cost.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"221 ","pages":"Article 110711"},"PeriodicalIF":3.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146023485","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
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