Chemical Engineering and Processing - Process Intensification最新文献_第6页

Performance analysis of bio-inspired flow fields for process intensified hydrogen production in proton exchange membrane electrolysis cells 质子交换膜电解池过程强化制氢的仿生流场性能分析

IF 3.9 3区工程技术 Q3 ENERGY & FUELS

Chemical Engineering and Processing - Process Intensification

Pub Date : 2025-11-29 DOI: 10.1016/j.cep.2025.110642

Sha Mi, Jiting Li, Lingling Cai, Gengrui Li, Yunpeng Su

Effective thermal and water management is essential for the stable operation of proton exchange membrane electrolysis cells (PEMECs). To this end, three bio-inspired configurations have been developed in this paper: fishbone, leaf vein and honeycomb flow fields are established based on COMSOL Multiphysics simulation software, and parallel flow fields are chosen as a comparison. Four distinct flow field designs were thoroughly examined to assess their impact on the electrolytic behavior, along with the thermal and mass transport properties of PEMECs. The results of the simulations revealed that the flow field architecture exerted only a minor influence on the polarization behavior of PEM electrolyzers. However, with regard to hydrogen molar fraction, the leaf-vein flow field demonstrates the highest hydrogen molar fraction content among the four flow fields under consideration. It is demonstrated that, at an electrolysis voltage of 2.4 V, the average temperatures for the herringbone, venation, and honeycomb flow fields are reduced by 1 %, 0.6 %, and 0.3 %, respectively, in comparison to the parallel flow field architecture. Furthermore, among the four flow patterns, the venation pattern exhibits the greatest pressure drop. Finally, the honeycomb flow pattern contains the highest membrane water content, exceeding that of the parallel flow pattern by 1.09 %.

有效的热、水管理是质子交换膜电解电池（PEMECs）稳定运行的关键。为此，本文基于COMSOL Multiphysics仿真软件建立了鱼骨流场、叶脉流场和蜂窝流场三种仿生构型，并选择平行流场进行对比。研究人员对四种不同的流场设计进行了全面的研究，以评估它们对pemec的电解行为以及传热和传质性能的影响。模拟结果表明，流场结构对PEM电解槽的极化行为影响很小。而在四种流场中，叶脉流场的氢摩尔分数含量最高。结果表明，在电解电压为2.4 V时，人字流场、脉状流场和蜂窝流场的平均温度分别比平行流场结构降低1%、0.6%和0.3%。四种流型中，脉纹流型的压降最大。最后，蜂窝流型的膜含水量最高，比平行流型高1.09%。

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引用次数: 0

Sodium persulfate enhances straw pretreatment and reduces NaOH dosage for biohydrogen production 过硫酸钠提高秸秆预处理效果，减少生物制氢NaOH用量

IF 3.9 3区工程技术 Q3 ENERGY & FUELS

Chemical Engineering and Processing - Process Intensification

Pub Date : 2025-11-26 DOI: 10.1016/j.cep.2025.110641

Liu Qianchi , Sheng Tao , Yang Chunxue , Sun Caiyu , Huang Linlin , Li Lixin

Lignocellulosic biomass is one of the most abundant resources on Earth. It represents a promising feedstock for biohydrogen production. However, the complex and rigid structure of lignocellulose poses a significant challenge, as it limits the accessibility of cellulose to microbial degradation. Consequently, pretreatment is a crucial step in breaking down this structure and enhancing the digestibility of holocellulose. In this study, sodium persulfate (SPS) was applied to enhance the NaOH pretreatment of rice straw for cellulosic biohydrogen production. The results indicated that SPS has not only decreased the dosage of NaOH for the rice straw pretreatment but also disrupted the structure of rice straw by removing lignin and weakening the hydrogen bonds between cellulose and hemicellulose. The maximum hydrogen yield obtained from the SPS-NaOH (NCN) pretreatment was 91.05 mL/g, which was 3.47 and 1.80 times higher than that achieved by using SPS and NaOH alone, respectively. Furthermore, this combined pretreatment effectively degraded lignin and shifted the metabolic pathway towards the more efficient butyric acid-type fermentation. In conclusion, the NCN combination proved to be a highly effective strategy for enhancing biohydrogen production from rice straw.

木质纤维素生物质是地球上最丰富的资源之一。它代表了一种很有前途的生物制氢原料。然而，木质纤维素的复杂和刚性结构带来了重大挑战，因为它限制了微生物降解纤维素的可及性。因此，预处理是分解这种结构和提高全息纤维素消化率的关键步骤。本研究采用过硫酸钠（SPS）强化稻草NaOH预处理，用于纤维素生物制氢。结果表明，SPS不仅减少了稻草预处理中NaOH的用量，而且通过去除木质素和削弱纤维素与半纤维素之间的氢键破坏了稻草的结构。SPS-NaOH （NCN）预处理的最大产氢率为91.05 mL/g，分别是单独使用SPS和NaOH的3.47和1.80倍。此外，这种联合预处理有效地降解了木质素，并将代谢途径转向更有效的丁酸型发酵。综上所述，NCN组合是提高秸秆生物制氢效率的有效策略。

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引用次数: 0

Research on the treatment of neodymium iron boron (NdFeB) waste by flash reduction melting method 闪速还原熔融法处理钕铁硼废渣的研究

IF 3.9 3区工程技术 Q3 ENERGY & FUELS

Chemical Engineering and Processing - Process Intensification

Pub Date : 2025-11-26 DOI: 10.1016/j.cep.2025.110639

Lei Guo, Haojie Zheng, Kaidi Mu, Zhancheng Guo

Neodymium iron boron (NdFeB) is a third-generation rare earth permanent magnet material, and its production process generates waste containing approximately 30 % rare earth elements. If not recycled, this waste of rare earth resources will also have an impact on the environment. This paper presents a method for treating NdFeB waste through flash reduction melting. The separation of slag and iron can be effectively achieved through the combined process of pre-reduction and flash melting, along with grinding and magnetic separation of the particles. Particles smaller than 30 μm achieve effective separation of slag and iron via flash reduction melting combined with grinding and magnetic separation, whereas particles larger than 30 μm require pre-reduction treatment. This study also examines the effects of particle size and pre-reduction on flash reduction melting and develops a process route for the flash reduction treatment of NdFeB waste. After the two-step process, the metallization rate of the particles exceeds 95 %, yielding spherical metallic iron powder and rare earth slag following grinding and magnetic separation. The Nd content in the rare earth slag reaches up to 62 %, while the iron content in the iron powder can reach 95 %.

钕铁硼（NdFeB）是第三代稀土永磁材料，其生产过程中产生的废料中稀土元素含量约为30%。如果不加以回收利用，这种稀土资源的浪费也会对环境产生影响。介绍了一种闪速还原熔融法处理钕铁硼废料的方法。通过预还原与闪熔相结合的工艺，结合磨矿和磁选对颗粒进行分离，可以有效地实现渣铁分离。小于30 μm的颗粒通过闪速还原熔融结合磨矿和磁选实现了渣铁的有效分离，大于30 μm的颗粒则需要进行预还原处理。本研究还考察了颗粒大小和预还原对闪速还原熔融的影响，并开发了一种闪速还原处理钕铁硼废料的工艺路线。两步工艺处理后，颗粒金属化率超过95%，磨矿磁选后得到球形金属铁粉和稀土渣。稀土渣中的Nd含量可达62%，铁粉中的铁含量可达95%。

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引用次数: 0

Microwave heating of uranium compounds: A novel process intensification approach 微波加热铀化合物：一种新的过程强化方法

IF 3.9 3区工程技术 Q3 ENERGY & FUELS

Chemical Engineering and Processing - Process Intensification

Pub Date : 2025-11-26 DOI: 10.1016/j.cep.2025.110640

Pasupuleti Kalpana , Jayanta Mondal , Sandeep Singh , Sonal Gupta , S. Manna , Santosh Das , S.K. Satpati , Rishi Verma

Microwave heating is a distinctive thermal processing technique where heat is generated within the target material, unlike conventional furnace heating, where heat propagates inward from the surface. This characteristic enables selective heating of specific compounds in a mixture and thereby intensifying the process. To explore the potential of microwave heating for process intensification in uranium processing, various uranium compounds— i.e. ammonium diuranate (ADU), uranium oxides (UO₂, U₃O₈, UO₃), and uranium tetrafluoride (UF₄)—were subjected to a 2.45 GHz microwave source. Experimental observations reveal considerable differences in the temperature rise among these compounds due to variations in their dielectric properties. The dielectric coefficients, which determine their response under an RF field, were quantified through an experimental setup involving S21 parameter measurements using a vector network analyzer (VNA). A notable outcome of these experiments is the demonstration that microwave-assisted calcination of ADU can be significantly enhanced by introducing U₃O₈ as a seed material. Due to its higher microwave absorption compared to ADU, U₃O₈ initiates localized reactions that progressively convert ADU to U₃O₈, ultimately enabling near-complete transformation. This study presents this novel approach of employing U₃O₈ as a seed material for microwave-based calcination of ADU. XRD of mixed compound at different stages of heating clearly indicate effective dehumidification and calcinations of ADU and formation of U₃O₈.Quality of obtained U₃O₈ is analyzed to find O/U ratio of 2.67, average particle size of 25–30 µm and specific surface area of 4.8 m²/gm.

微波加热是一种独特的热处理技术，热量在目标材料内部产生，不像传统的炉加热，热量从表面向内传播。这一特性使得可以对混合物中的特定化合物进行选择性加热，从而强化该过程。为了探索微波加热在铀加工过程中强化的潜力，各种铀化合物——即重铀酸铵（ADU）、铀氧化物（UO₂，U₃O₈，UO₃）和四氟化铀（UF₄）——受到2.45 GHz微波源的影响。实验观察表明，由于介电性质的变化，这些化合物之间的温升有相当大的差异。通过使用矢量网络分析仪（VNA）测量S21参数的实验装置，对决定其在射频场下响应的介电系数进行了量化。这些实验的一个显著结果是，通过引入U₃O₈作为种子材料，可以显著提高ADU的微波辅助焙烧效果。由于它比ADU有更高的微波吸收率，U₃O₈引发局部反应，逐渐将ADU转化为U₃O₈，最终实现几乎完全的转化。本研究提出了采用U₃O₈作为ADU微波焙烧种子材料的新方法。混合化合物在不同加热阶段的XRD结果清楚地表明ADU的有效除湿和煅烧以及U3O8的生成。对所得U3O8质量进行分析，得到O/U比为2.67，平均粒径为25-30µm，比表面积为4.8 m2/gm。

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引用次数: 0

Study of a composite phase change material with high thermal conductivity and latent heat based on mannitol–dulcitol/MC@rGO 甘露醇-甘露醇/MC@rGO高导热潜热复合相变材料的研究

IF 3.9 3区工程技术 Q3 ENERGY & FUELS

Chemical Engineering and Processing - Process Intensification

Pub Date : 2025-11-21 DOI: 10.1016/j.cep.2025.110637

Fulin Shi , Xinyu He , Wanqing Wu , Dedi Zhou , Min Du , Haokun Shi , Qinggong Zheng

The mannitol - dulcitol eutectic composite phase change material (PCM) exhibits excellent latent heat storage capacity (301.2 J/g) and an appropriate phase change temperature, showing great potential for application in the thermal management of lithium-ion batteries (LIB). In this study, a composite phase change material (CPCM) with both high latent heat and high thermal conductivity was designed and fabricated by constructing a three-dimensional thermal conduction network using micronized cellulose (MC) and reduced graphene oxide (rGO). The MC, derived from corn stalks via delignification and hemicellulose removal, serves as the structural framework for the thermal conduction pathway. Meanwhile, the incorporation of rGO enhances thermal conductivity significantly through hydrogen bonding and its integration into the thermal conduction network. The results demonstrate that the CPCM achieves an impressive thermal conductivity of 1.035 W/(m·K) and a high phase change enthalpy of 251.8 J/g at a low filler loading of 9 wt% MC@rGO, indicating excellent thermal management performance at low filler content. This work provides an efficient solution for the development of novel phase change thermal interface materials for energy storage systems and electronic thermal dissipation.

甘露醇- dulcitol共晶复合相变材料（PCM）具有良好的潜热储存能力（301.2 J/g）和适宜的相变温度，在锂离子电池（LIB）热管理中具有很大的应用潜力。本研究利用微粉纤维素（MC）和还原氧化石墨烯（rGO）构建三维导热网络，设计并制备了一种具有高潜热和高导热的复合相变材料（CPCM）。MC通过脱木质素和半纤维素去除从玉米秸秆中提取，作为热传导途径的结构框架。同时，还原氧化石墨烯的加入通过氢键结合并融入热传导网络，显著增强了导热性。结果表明，在填料含量为9 wt% MC@rGO时，CPCM的导热系数为1.035 W/(m·K)，相变焓为251.8 J/g，表明在填料含量较低时，CPCM具有良好的热管理性能。这项工作为开发用于储能系统和电子散热的新型相变热界面材料提供了有效的解决方案。

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引用次数: 0

Computational fluid dynamics investigation of dynamic evolution of gas mass transfer and separation in multichannel tubular Silicalite-1 membrane 多通道管状硅石-1膜内气体传质与分离动力学演化的计算流体动力学研究

IF 3.9 3区工程技术 Q3 ENERGY & FUELS

Chemical Engineering and Processing - Process Intensification

Pub Date : 2025-11-19 DOI: 10.1016/j.cep.2025.110635

Zhuoming Yang , Dongjie Yin , Weiqiu Huang , Xufei Li , Xinya Wang , Xiaotong Li , Ping Xia , Jing Zhong

Silicalite-1 membrane is widely used in the field of gas separation, but its dynamic mass transfer mechanism is not very clear due to the complicated and synergistic effects of pressure, flow rate and porous structure. Based on the Finite Element Method (FEM) with the core advantage of decoupling complex transmission paths, the dynamic evolution of gas separation behavior of the membrane was analyzed from the microscopic to the macroscopic level through multi-physics field coupling, using two different 3D CFD models: both microscopic structure within the membrane and macro tubular membrane module. Herein, using programming software to extract simulation data from the model for grey correlation analysis yielded optimized parameters for the industrial membrane module: inlet pressure of 0.5 MPa, inlet flow velocity of 0.3 m/s, tubular membrane length of 1 m, and volumetric flow rate of 9.42 × 10⁻⁵ m³/s. The H₂ permeation flux reached 2.52 mol/(m²·s), with a CO₂/H₂ selectivity of 0.602. The utilization of a combined simulation of two distinct CFD models serves as a vital visualization tool for observing the dynamic evolution of gas mass transfer and separation processes within membranes, which provides quantitative evidence for the industrial design and operational parameter optimization of membrane modules.

硅石-1膜广泛应用于气体分离领域，但由于压力、流量和多孔结构的复杂协同作用，其动态传质机理并不十分清楚。基于具有解耦复杂传输路径核心优势的有限元法（FEM），采用膜内微观结构和宏观管状膜模块两种不同的三维CFD模型，通过多物理场耦合，从微观到宏观层面分析了膜气体分离行为的动态演化。在此，利用编程软件从模型中提取仿真数据进行灰色关联分析，得到工业膜模块的优化参数：进口压力0.5 MPa，进口流速0.3 m/s，管膜长度1 m，容积流量9.42 × 10⁻5 m³/s。H2通过通量达到2.52 mol/(m2·s)， CO2/H2选择性为0.602。利用两种不同CFD模型的联合模拟，为观察膜内气体传质和分离过程的动态演变提供了重要的可视化工具，为膜模块的工业设计和操作参数优化提供了定量依据。

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引用次数: 0

Synergistic integration of sonication and cold plasma for intensified food processing: Mechanisms, applications, limitations, and future Prospects 超声和冷等离子体在强化食品加工中的协同整合：机制、应用、局限性和未来展望

IF 3.9 3区工程技术 Q3 ENERGY & FUELS

Chemical Engineering and Processing - Process Intensification

Pub Date : 2025-11-18 DOI: 10.1016/j.cep.2025.110631

Chirantan Sandip Saigaonkar , Sandhya R Shewale , Uday S Annapure

Background

Advancements in food processing aim to preserve nutrient and bioactive integrity while enhancing microbiological safety without relying on thermal methods. Sonication-Assisted Cold Plasma (SACP) integrates mechanical ultrasound forces with reactive plasma chemistry to overcome limitations of individual treatments, such as limited penetration depth and uneven effects, making it a promising approach for preserving food quality and safety.

Methods

A systematic literature review was conducted following PRISMA 2020 guidelines. Peer-reviewed research articles published between January 2020 and May 2025 were identified from electronic databases, including Scopus, PubMed, and ScienceDirect. Studies evaluating combined ultrasound and cold plasma treatments on food dehydration, microbial inactivation, extraction, and protein modification were selected for narrative synthesis.

Results

SACP exhibited up to 47 % reduction in drying time, achieving over 3-log microbial load reductions. Mechanistically, ultrasound enhances cavitation and mass transfer, while cold plasma generates reactive species that oxidize microbial cells and modify food macromolecules. Challenges remain in scaling technology for industrial throughput, standardizing treatment protocols, and assessing byproduct safety and long-term product stability.

Conclusions

The synergistic integration of ultrasound and cold plasma presents a promising non-thermal approach for food processing with demonstrated efficiency, safety, and preservation of food quality. Future efforts should prioritize protocol harmonization, real-time process control, comprehensive safety evaluation, and economic feasibility to enable commercial adoption and sustainable food manufacturing.

食品加工的进步旨在保持营养和生物活性的完整性，同时提高微生物的安全性，而不依赖于热方法。超声辅助冷等离子体（SACP）将机械超声力与反应性等离子体化学相结合，克服了个体处理的局限性，如有限的穿透深度和不均匀的效果，使其成为一种有前途的方法，以保持食品质量和安全。方法按照PRISMA 2020指南进行系统文献综述。在2020年1月至2025年5月期间发表的同行评议研究文章从电子数据库中确定，包括Scopus， PubMed和ScienceDirect。本文选取超声和冷等离子体联合处理对食品脱水、微生物灭活、提取和蛋白质修饰的研究作为叙述综合。结果sacp的干燥时间减少了47%，微生物负荷减少了3倍以上。在机械上，超声波增强空化和传质，而冷等离子体产生氧化微生物细胞和修饰食物大分子的活性物质。挑战仍然存在于工业吞吐量的规模化技术，标准化处理方案，评估副产品安全性和长期产品稳定性。结论超声和冷等离子体的协同整合为食品加工提供了一种有前途的非热方法，具有高效、安全、保鲜的特点。未来的工作应优先考虑协议协调、实时过程控制、综合安全评估和经济可行性，以实现商业应用和可持续食品生产。

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引用次数: 0

Industrial micronization of defatted rice bran by-product: A sustainable approach for the development of a nutritious and safe ingredient 脱脂米糠副产品的工业微粉化：开发营养和安全成分的可持续方法

IF 3.9 3区工程技术 Q3 ENERGY & FUELS

Chemical Engineering and Processing - Process Intensification

Pub Date : 2025-11-18 DOI: 10.1016/j.cep.2025.110634

Adreano Gomes Spessato , Silvia Leticia Rivero Meza , Brenda Dannenberg Kaster , Jircelene Brombilla , Larissa Alves Rodrigues , Sonia Medina , Maurício de Oliveira

Whole rice bran, an underutilized agro-industrial by-product, is naturally rich in lipids, proteins, dietary fiber, vitamins, minerals, and phytochemicals. Despite its potential, rice bran, which represents 11 % of rice milling, is mainly used for animal feed or edible oil. During oil extraction, defatted rice bran is generated, accounting for 82 % of processing and causing environmental and economic challenges. Micronization has emerged as a promising process intensification strategy to add value to defatted rice bran by enhancing functional properties. This study evaluated the effects of large-scale micronization on physicochemical, nutritional, and microbiological properties. Micronization increased apparent density and reduced water activity and moisture. Dietary fiber increased by 28 %, protein by 17 %, and lutein by 39 %. Essential nutrients improved as follows: amino acids by 27 %, minerals by 7 %, and vitamin by 12 %. Multivariate analysis confirmed micronization as the main factor driving nutritional improvements and producing more homogeneous and stable profiles across three production years. Furthermore, the microbiological assessment confirmed compliance with official regulatory standards. Overall, the findings highlight micronization as a robust and scalable strategy for transforming defatted rice bran into a safe, functional, and value-added ingredient with high potential for innovative applications in the food industry.

全米糠是一种未充分利用的农工副产品，天然富含脂质、蛋白质、膳食纤维、维生素、矿物质和植物化学物质。尽管米糠潜力巨大，但占稻米加工11%的米糠主要用于动物饲料或食用油。在榨油过程中，产生脱脂米糠，占加工的82%，并造成环境和经济挑战。微粉化已成为一种有前途的工艺强化策略，通过增强功能特性来增加脱脂米糠的价值。本研究评估了大规模微粉化对理化、营养和微生物特性的影响。微粉化增加了表观密度，降低了水活度和水分。膳食纤维增加28%，蛋白质增加17%，叶黄素增加39%。必需营养素改善如下：氨基酸增加27%，矿物质增加7%，维生素增加12%。多变量分析证实，微粉化是推动营养改善的主要因素，并在三个生产年内生产出更均匀和稳定的产品。此外，微生物评估证实符合官方监管标准。总体而言，研究结果强调，微粉化是一种稳健且可扩展的战略，可将脱脂米糠转变为一种安全、功能性和增值成分，在食品工业中具有创新应用的巨大潜力。

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引用次数: 0

Experimental verification for intensification mechanism and template role of nanobubbles as nucleation sites in reaction crystallization of diclofenac 纳米气泡在双氯芬酸反应结晶中的强化机理及模板作用的实验验证

IF 3.9 3区工程技术 Q3 ENERGY & FUELS

Chemical Engineering and Processing - Process Intensification

Pub Date : 2025-11-18 DOI: 10.1016/j.cep.2025.110633

Bo Shi , Jingzhou Guo , Zhengtao Xu , Wei Mao , Yuan Pu , Dan Wang

Nanobubble has attracted extensive research attention due to their anomalous thermodynamic behavior while fundamental mechanisms remain elusive. This study aims to investigate the nucleation-crystallization of diclofenac in acidic environments as model reaction, employing in-situ methodologies to systematically analyze nanobubble synergy during nucleation-growth. Experimental verification of templating role and mechanism of nanobubbles as nucleation sites in reaction crystallization of diclofenac is performed. Kinetic studies reveal that nanobubbles can reduce the system's apparent active energy by 72.181 kJ/mol and decrease the apparent preexponential factor to 1.4 × 10⁻⁶. Additionally, it is observed that highly dense nanobubble clusters can function as templates for synthesizing hollow particles.

纳米气泡由于其异常的热力学行为引起了广泛的研究，但其基本机理仍不清楚。本研究旨在研究双氯芬酸在酸性环境中的成核结晶作为模型反应，采用原位方法系统分析纳米气泡在成核生长过程中的协同作用。实验验证了纳米气泡作为成核点在双氯芬酸反应结晶中的模板作用和机理。动力学研究表明，纳米气泡可以使体系的表观活性能降低72.181 kJ/mol，将表观指前因子降低到1.4 × 10⁻26。此外，高密度的纳米气泡团簇可以作为合成空心粒子的模板。

引用次数: 0

Study on the dynamic mechanisms of adsorption and migration of toluene on activated carbon surfaces under high gravity 高重力条件下活性炭表面吸附迁移甲苯的动力学机理研究

IF 3.9 3区工程技术 Q3 ENERGY & FUELS

Chemical Engineering and Processing - Process Intensification

Pub Date : 2025-11-18 DOI: 10.1016/j.cep.2025.110632

Guo Qiang , Niu Jiahao , Qi Guisheng

To address the limitations of conventional fixed bed adsorption methods in VOCs removal, this study systematically investigates the adsorption and desorption behaviors of toluene on activated carbon in a rotating packed bed under high gravity. As the β increased from 0 to 80, the adsorption capacity of AC rose from 115.3 to 134.2 mg/g and the surface coverage increased from 0.478 to 0.657, representing a clear improvement in adsorbent utilization. The Yoon–Nelson model fitting showed that the 50% breakthrough time was extended from 52.73 to 63.76 min, while the adsorption rate constant increased from 0.0869 to 0.0990 min⁻¹. Desorption experiments demonstrated that regeneration efficiency was enhanced at elevated β, and after three adsorption–desorption cycles, the adsorption capacity remained above 95% of the initial value, confirming excellent cyclic stability. Mechanistic analysis revealed that high gravity intensifies interfacial mass transfer and promotes molecular diffusion, thereby improving both adsorption efficiency and regeneration performance. These findings provide both theoretical and experimental support for the design and scale-up of high gravity systems for efficient VOCs control.

针对传统固定床吸附法去除VOCs的局限性，系统研究了高重力下旋转填料床对甲苯的吸附和解吸行为。当β值从0增加到80时，活性炭的吸附量从115.3 mg/g增加到134.2 mg/g，表面覆盖率从0.478增加到0.657，吸附剂利用率明显提高。yon - nelson模型拟合表明，50%的突破时间从52.73分钟延长到63.76分钟，吸附速率常数从0.0869分钟增加到0.0990分钟。脱附实验表明，在β浓度升高时，再生效率提高，经过3次吸附-脱附循环后，吸附容量仍保持在初始值的95%以上，具有良好的循环稳定性。机理分析表明，高重力加剧了界面传质，促进了分子扩散，从而提高了吸附效率和再生性能。这些发现为高效控制VOCs的高重力系统的设计和规模化提供了理论和实验支持。

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引用次数: 0