Chemical Engineering and Processing - Process Intensification最新文献_第3页

Ultrasonic-enhanced complete lithium extraction from alkaline roasting slag of spodumene: kinetics and mechanism 锂辉石碱性焙烧渣超声强化全锂萃取动力学及机理研究

IF 3.9 3区工程技术 Q3 ENERGY & FUELS

Chemical Engineering and Processing - Process Intensification

Pub Date : 2026-01-05 DOI: 10.1016/j.cep.2026.110699

Shengxuan Zhao , Enpei Zhu , Chao Luo , Li Zhu , Zhiqi Chen , Macong Duan , Xiaoyuan Li , Linqing Dai , Gengwei Zhang , Likang Fu , Libo Zhang , Yonggang Zuo , Bingguo Liu

Lithium extraction from spodumene conventionally requires complex, energy-intensive processes involving high-temperature conversion of α-spodumene to β-spodumene, followed by acid roasting and leaching. Inspired by alkali fusion, we achieved microwave-assisted alkaline roasting of spodumene at only 250 °C, producing water- and acid-soluble salts and thereby substantially reducing the roasting temperature. However, efficient lithium recovery during subsequent leaching remains challenging. Here, we report an ultrasonic leaching (UL) strategy applied to microwave-roasted slag after water washing in a sulfuric acid medium. Under optimized conditions, lithium leaching efficiency reached 99.9%, representing a 27% improvement over conventional leaching (CL). Kinetic analysis revealed that ultrasound reduced the apparent activation energy from 32.61 kJ·mol^-1 (CL) to 20.68 kJ·mol^-1. Mechanistic studies showed that ultrasound disrupts diffusion boundary layers, decreases particle size, and enhances interfacial mass transfer and infiltration, thereby accelerating lithium dissolution. This microwave-ultrasound synergistic strategy provides a highly efficient, sustainable, and environmentally friendly approach for lithium extraction, establishing a promising paradigm for process intensification in green hydrometallurgy.

从锂辉石中提取锂通常需要复杂的高能耗工艺，包括α-锂辉石高温转化为β-锂辉石，然后进行酸焙烧和浸出。受碱熔融的启发，我们在250℃的温度下实现了锂辉石的微波辅助碱性焙烧，产生了水溶盐和酸溶盐，从而大大降低了焙烧温度。然而，在随后的浸出过程中有效回收锂仍然是一个挑战。在这里，我们报告了一种超声波浸出（UL）策略，应用于在硫酸介质中水洗后的微波焙烧渣。在优化条件下，锂浸出效率达到99.9%，比常规浸出（CL）提高27%。动力学分析表明，超声将表观活化能从32.61 kJ·mol-1 （CL）降低到20.68 kJ·mol-1。机理研究表明，超声破坏扩散边界层，减小颗粒尺寸，增强界面传质和渗透，从而加速锂的溶解。这种微波-超声协同策略为锂提取提供了一种高效、可持续、环保的方法，为绿色湿法冶金工艺强化建立了一个有前途的范例。

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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 Q3 ENERGY & FUELS

Chemical Engineering and Processing - Process Intensification

Pub Date : 2026-01-03 DOI: 10.1016/j.cep.2026.110697

Saravana Kannan Thangavelu

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.

随着全球向低碳和可持续能源系统的转型，木质纤维素和废弃生物质生产生物乙醇的研究得到了加强，但大规模部署仍然受到工艺复杂性、原料异质性和碎片化优化策略的限制，这些优化策略无法充分捕捉非线性相互作用和多目标权衡。这篇综述批判性地综合了整个生物乙醇生产链中工艺强化和优化的最新进展，包括预处理、水解、发酵和产品回收。传统的统计工具，包括响应面法、中心复合设计和Box-Behnken设计，对于结构化实验和以最小的实验努力识别局部最优仍然有价值；然而，它们的预测鲁棒性在高度非线性、多变量系统中减弱。相比之下，人工智能和机器学习方法，如人工神经网络、支持向量机、遗传算法、粒子群优化和非主导排序遗传算法II，可以实现精确的非线性建模、全局优化，并明确处理与产量、能耗、抑制剂形成和成本相关的冲突目标。特别强调的是新兴的混合框架，它集成了统计设计、基于人工智能的代理模型和元启发式优化，以提高预测保真度、流程效率和可扩展性。此外，在组学指导下的代谢工程、绿色溶剂预处理、木质素固化和数字孪生方面取得了进展，并结合了实时人工智能驱动的过程控制。

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引用次数: 0

Process intensification in tubular heat exchangers: Thermohydrodynamic analysis and entropy generation of Al2O3/R134a nanorefrigerant with twisted-tape enhancement across flow regimes 管式热交换器的过程强化：Al2O3/R134a纳米制冷剂的热流动力学分析和熵产与扭曲带增强跨流型

IF 3.9 3区工程技术 Q3 ENERGY & FUELS

Chemical Engineering and Processing - Process Intensification

Pub Date : 2026-01-02 DOI: 10.1016/j.cep.2025.110692

Muhammad Ammar Jaya , Musabbikhah , Ahmad Imam Rifa’i , Tri Widodo Besar Riyadi , Pranowo , Budi Kristiawan , Agung Tri Wijayanta

This study presents a computational analysis aimed at intensifying heat transfer in tubular heat exchangers through a combined passive enhancement strategy. The approach integrates twisted-tape inserts with an Al₂O₃/R134a nanorefrigerant at 0.1 vol% concentration to improve thermohydrodynamic performance. The novelty of this work lies in (i) establishing an entropy-based assessment framework that couples vortex generation with twisted-tape augmentation, and (ii) providing design-oriented insights for compact and multifunctional heat exchangers. Simulations were performed across Reynolds numbers ranging from 1750 to 18,000, encompassing both laminar and turbulent regimes, with twisted tapes featuring a twist ratio of 8.3, which promotes the formation of secondary vortices and enhances fluid mixing. Results indicate significant thermal enhancement: the Nusselt number increased by 106.7 % in laminar flow and 16.8 % in turbulent flow compared to the baseline. Incorporating the nanorefrigerant further amplified performance, achieving improvements of 238.3 % and 91.2 % in laminar and turbulent regimes, respectively. Entropy generation analysis revealed regime-dependent trends, with friction factors decreasing from 0.067 in laminar flow to 0.037 in turbulence due to intensified momentum transport. The superior performance under turbulence is attributed to enhanced thermal conductivity and augmented mixing mechanisms. The proposed framework offers practical guidelines for optimizing heat exchanger designs, contributing to sustainable process intensification in chemical engineering applications.

本文提出了一种通过联合被动强化策略强化管式换热器传热的计算分析方法。该方法将扭曲带插入物与浓度为0.1 vol%的Al2O3/R134a纳米制冷剂集成在一起，以提高热流体力学性能。这项工作的新颖之处在于(i)建立了一个基于熵的评估框架，该框架将涡流产生与扭曲带增强相结合，以及（ii）为紧凑型和多功能热交换器提供面向设计的见解。在雷诺数从1750到18000的范围内进行了模拟，包括层流和湍流状态，扭曲带的扭曲比为8.3，这促进了二次涡的形成，增强了流体的混合。结果表明：与基线相比，层流条件下的努塞尔数增加了106.7%，湍流条件下的努塞尔数增加了16.8%。加入纳米制冷剂进一步提高了性能，在层流和湍流状态下分别提高了238.3%和91.2%。熵产分析显示，由于动量输运加剧，摩擦因子从层流的0.067下降到湍流的0.037。优越的湍流性能归因于增强的导热性和增强的混合机制。提出的框架为优化热交换器设计提供了实用的指导方针，有助于化学工程应用中的可持续过程强化。

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引用次数: 0

Removal notice to “Ultrasound-assisted upcycling of thermal transfer ink ribbons into purified terephthalic acid and carbon black” [CEP 219 (2025) 110619] 关于“超声波辅助热转印油墨带升级回收为纯化对苯二甲酸和炭黑”的取消通知[CEP 219 (2025) 110619]

IF 3.9 3区工程技术 Q3 ENERGY & FUELS

Chemical Engineering and Processing - Process Intensification

Pub Date : 2026-01-01 DOI: 10.1016/j.cep.2025.110662

Lokesh Mekala , Kathula Naresh , Vikas Choudhary , Radha Kumari Muktham , Alka kumari , Vineet Aniya

引用次数: 0

Boosting CO2 mineralisation reaction with a spiral internal draft tube reactor: from concept to continuous operation 用螺旋内引水管反应器促进二氧化碳矿化反应：从概念到连续运行

IF 3.9 3区工程技术 Q3 ENERGY & FUELS

Chemical Engineering and Processing - Process Intensification

Pub Date : 2026-01-01 DOI: 10.1016/j.cep.2026.110695

Khush Karan Gadra, Gaurav Ashok Bhaduri

Ex-situ CO₂ mineralisation is limited by slow CO₂ hydration rates and inefficient separation of precipitated carbonates, often requiring multiple reaction and solid–liquid handling steps. In this study, a Spiral Internal Draft Tube Reactor (SIDTR) is developed to intensify CO₂ mineralisation by integrating carbonation and CaCO₃ precipitation within a single hydrodynamic system. The reactor features an external spiral channel that establishes controlled circulation and pH zoning, enabling in-situ precipitation and settling of CaCO₃ while maintaining continuous CO₂ hydration in the draft-tube riser. The influence of spiral configuration, gas flow rate, and CO₂ concentration was systematically investigated. The six-turn spiral configuration (6SIDTR) yielded the highest mineralisation rate, achieving effective conversion even at 10% CO₂, representative of flue gas conditions. In continuous operation, the 6SIDTR achieved a 27.7 ± 0.08 % mineralisation efficiency, representing a 3.6-fold enhancement compared to a conventional bubble column under identical conditions. This reactor design reduces the conventional three-step mineralisation process to two units and offers a scalable route for process-intensified CO₂ mineralisation systems.

非原位CO 2矿化受到CO 2水化速率缓慢和沉淀碳酸盐分离效率低下的限制，通常需要多个反应和固液处理步骤。在这项研究中，开发了一种螺旋内引水管反应器（SIDTR），通过在单个流体动力系统中整合碳化和CaCO₃沉淀来加强CO₂矿化。反应器的特点是一个外部螺旋通道，它建立了受控的循环和pH分区，使CaCO₃能够在原地沉淀和沉淀，同时在导流管提升管中保持连续的CO₂水化。系统地考察了螺旋构型、气体流速和CO₂浓度的影响。六转螺旋结构（6SIDTR）产生了最高的矿化率，即使在10%的CO₂（代表烟气条件）下也能实现有效转化。在连续运行中，6SIDTR实现了27.7±0.08%的矿化效率，与相同条件下的传统气泡塔相比，提高了3.6倍。这种反应器设计将传统的三步矿化过程减少到两个单元，并为过程强化的CO 2矿化系统提供了可扩展的路线。

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引用次数: 0

Innovative technologies for succinic acid fermentation: A path to sustainable production 琥珀酸发酵创新技术：可持续生产之路

IF 3.9 3区工程技术 Q3 ENERGY & FUELS

Chemical Engineering and Processing - Process Intensification

Pub Date : 2025-12-31 DOI: 10.1016/j.cep.2025.110693

Diana Carolina Barriga-Gómez , Juan Federico Herrera-Ruiz , Ricardo Morales-Rodriguez , Oscar Andrés Prado-Rubio

Succinic acid (SA) is a high-value platform chemical increasingly produced via microbial fermentation of renewable biomass. However, conventional biotransformations often face challenges such as low productivity, carbon utilization inefficiency, and energy-intensive downstream separation processes. Process Intensification (PI) offers a transformative framework to overcome these limitations, enabling more efficient, scalable, and sustainable production systems. To evidence how PI has shaped research in this area, a bibliometric analysis was first conducted, revealing PI as a central driver that connects strains, substrates, and reactor strategies within the field. This mapping provided the foundation for the second part of the study, a critical synthesis of the literature organized around the four PI domains: spatial, thermodynamic, functional, and temporal. Dominating technologies include membrane bioreactors, immobilized cell systems, in situ product recovery (ISPR), consolidated bioprocessing (CBP), and dynamic feeding operations. These approaches not only enhance key performance indexes such as yield, titer, and resource efficiency but also position bioprocessing as a convergent field integrating advanced materials, AI-based control, and solvent-free separations. Special attention is given to assessing technology readiness levels (TRLs), industrial scalability, and circular economic implications. Here in, it is shown how PI enables the transition to cleaner and more efficient bioprocesses, by aligning SA production with climate targets and the broader objectives of the United Nations 2030 Agenda for Sustainable Development.

琥珀酸（SA）是一种高价值的平台化学品，越来越多地通过可再生生物质的微生物发酵生产。然而，传统的生物转化常常面临生产力低、碳利用效率低和能源密集型下游分离过程等挑战。过程强化（PI）提供了一个变革性的框架来克服这些限制，实现更高效、可扩展和可持续的生产系统。为了证明PI如何影响了该领域的研究，首先进行了文献计量分析，揭示了PI是该领域内连接菌株、底物和反应器策略的核心驱动因素。这种映射为研究的第二部分提供了基础，这是围绕四个PI域（空间、热力学、功能和时间）组织的文献的关键综合。主导技术包括膜生物反应器、固定化细胞系统、原位产物回收（ISPR）、综合生物处理（CBP）和动态投料操作。这些方法不仅提高了产率、滴度和资源效率等关键性能指标，而且将生物处理定位为先进材料、人工智能控制和无溶剂分离的融合领域。特别注意评估技术准备水平（trl）、工业可扩展性和循环经济影响。本报告展示了PI如何通过使SA生产与气候目标和联合国2030年可持续发展议程的更广泛目标保持一致，从而实现向更清洁、更高效的生物工艺过渡。

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引用次数: 0

Continuous regeneration of the draw solution in textile wastewater treatment using a combination of simultaneous forward osmosis and reverse osmosis 利用同时正渗透和反渗透相结合的方法对纺织废水中提取液进行连续再生

IF 3.9 3区工程技术 Q3 ENERGY & FUELS

Chemical Engineering and Processing - Process Intensification

Pub Date : 2025-12-31 DOI: 10.1016/j.cep.2025.110689

Carmen M. Sánchez-Arévalo , Laura García-Suarez , Maria Salud Camilleri-Rumbau , Jörg Vogel , Silvia Álvarez-Blanco , M. Cinta Vincent-Vela , Beatriz Cuartas-Uribe

The concerning and abundant textile wastewater can be treated by forward osmosis (FO) in order to reduce its volume and simultaneously recover clean water. However, the productivity of FO depends on the concentration of the draw solution that is used. In this work, a simultaneous application of FO and reverse osmosis (RO) is proposed. The HFFO14® FO membrane (Aquaporin, Denmark) was employed to concentrate a real textile wastewater, whereas the SW30-2540 (DuPont, USA) RO membrane was employed to simultaneously regenerate the draw solution, which consisted in a 0.7 M NaCl solution, and to obtain a clean water stream. The concentration of the textile wastewater increased until 90% water recovery was achieved. The rejection values obtained for the chemical oxygen demand and total organic carbon were in the range 99 – 100%. Afterwards, the previously concentrated textile wastewater was again processed until a volume concentration factor of 16.5 was reached. Stable values of permeate flux (around 4 L/h·m²) were obtained in the FO process, whereas the reverse osmosis step permitted the maintenance of a stable conductivity in the draw solution and provided clean water as permeate.

利用正向渗透技术处理大量的纺织废水，既可以减少废水的体积，又可以回收清洁水。然而，FO的生产效率取决于所使用的拉伸溶液的浓度。在这项工作中，提出了FO和反渗透（RO）的同时应用。采用HFFO14®FO膜（丹麦Aquaporin公司）对真实纺织废水进行浓缩，同时采用SW30-2540（美国杜邦公司）反渗透膜对含有0.7 M NaCl溶液的提取液进行再生，获得干净的水流。纺织废水的浓度不断提高，直至水回收率达到90%。化学需氧量和总有机碳的截留值在99 ~ 100%之间。然后再对先前浓缩的纺织废水进行处理，使其体积浓度系数达到16.5。在FO过程中获得了稳定的渗透通量值（约4 L/h·m2），而反渗透步骤允许在抽取溶液中保持稳定的电导率，并提供清洁的水作为渗透。

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引用次数: 0

Microreactor technology for CO2 methanation: A review on process intensification and system integration CO2甲烷化微反应器技术：工艺强化与系统集成综述

IF 3.9 3区工程技术 Q3 ENERGY & FUELS

Chemical Engineering and Processing - Process Intensification

Pub Date : 2025-12-31 DOI: 10.1016/j.cep.2025.110690

Hao CHENG , Yongli LI , Dominique TARLET , Lingai LUO , Yilin FAN

The power-to-gas (PtG) process converts surplus renewable electricity into hydrogen via electrolysis, followed by

C O_{2}

methanation to produce synthetic methane. This integrated approach enhances the flexibility of hydrogen energy storage and transportation while achieves

C O_{2}

valorization, supporting and advancing the UN's sustainable development goals. Traditional

C O_{2}

methanation in large fixed-bed equipment suffers from limited heat and mass transfer efficiency, leading to the catalyst deactivation and compromised methanation performance. To overcome these challenges, microchannel-based reactors have been proposed as an alternate solution, offering enhanced heat and mass transfer performance, compact system volume, higher volumetric productivity and improved energy efficiency.

This paper presents a comprehensive literature review on research advances of the microchannel reactor technology for

C O_{2}

methanation. The review covers various aspects, including catalysts configuration, effects of operating factors, and strategies to intensify the

C O_{2}

methanation performance. In addition, special attention was given to integrated process coupling within methanation reaction, improving both reaction regulation and thermal energy management in methanation systems. The work provides a useful reference for developing high-efficiency microchannel reactor systems for

C O_{2}

methanation, offering fundamental insights for future industrial-scale implementation.

电能制气（PtG）过程通过电解将多余的可再生电力转化为氢气，然后通过二氧化碳甲烷化生产合成甲烷。这种综合方法增强了氢能源储存和运输的灵活性，同时实现了二氧化碳的增值，支持和推进了联合国的可持续发展目标。传统的大型固定床设备的co2甲烷化存在传热传质效率有限的问题，导致催化剂失活，影响了甲烷化性能。为了克服这些挑战，基于微通道的反应器被提出作为替代解决方案，提供增强的传热传质性能，紧凑的系统体积，更高的体积生产力和改进的能源效率。本文对微通道反应器技术在二氧化碳甲烷化中的研究进展进行了综述。从催化剂的配置、操作因素的影响以及提高CO2甲烷化性能的策略等方面进行了综述。此外，还特别关注了甲烷化反应中的集成过程耦合，以改善甲烷化系统的反应调节和热能管理。该工作为开发高效的CO2甲烷化微通道反应器系统提供了有益的参考，为未来的工业规模实施提供了基础见解。

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引用次数: 0

Citric acid production: A comprehensive assessment from a fermentation strategy to a circular economy process 柠檬酸生产：从发酵策略到循环经济过程的综合评估

IF 3.9 3区工程技术 Q3 ENERGY & FUELS

Chemical Engineering and Processing - Process Intensification

Pub Date : 2025-12-31 DOI: 10.1016/j.cep.2025.110694

Teresa Lopez-Arenas , Kevin Palacios-Samano , Hector Hernandez-Escoto , Mauricio Sales-Cruz

Currently, Mexican sugar mills, in addition to producing saccharose as their main product, obtain molasses as a byproduct and bagasse as an agro-industrial waste. Molasses is marketed or used in distilleries within the mill to produce anhydrous ethanol, but with low profitability. Bagasse is burned to produce steam and electricity, generating environmental problems. Therefore, from a circular economy perspective, the objective of this study is to propose a strategy for the modernization and adaptation of a sugar mill to a biorefinery to diversify the commercialization of its products, improving the economics and sustainability of the industrial process. The proposed methodology considers the design, simulation, and technoeconomic evaluation of a sugarcane biorefinery to produce citric acid and biofertilizer using two scenarios: one using bagasse and the other using molasses as feedstocks. The study first considers an analysis of the Mexican market to determine the availability of feedstocks and the installed capacity of the proposed biorefinery. Next, the operation mode of the fermentation reactor (i.e., batch or fed-batch) is studied as a strategy to increase citric acid productivity. Finally, the biorefinery is technically and economically evaluated under different operating conditions to determine the feasibility and profitability of the industrial process.

目前，墨西哥的糖厂除了生产蔗糖作为主要产品外，还获得糖蜜作为副产品，甘蔗渣作为农业工业废物。糖蜜销售或用于工厂内的酿酒厂生产无水乙醇，但利润率较低。甘蔗渣燃烧产生蒸汽和电力，造成环境问题。因此，从循环经济的角度来看，本研究的目的是提出一个糖厂现代化和适应生物精炼厂的战略，以使其产品的商业化多样化，提高工业过程的经济性和可持续性。提出的方法考虑了甘蔗生物精炼厂的设计、模拟和技术经济评估，以生产柠檬酸和生物肥料，使用两种情况：一种使用甘蔗渣，另一种使用糖蜜作为原料。该研究首先考虑了对墨西哥市场的分析，以确定原料的可用性和拟议的生物精炼厂的装机容量。接下来，研究了发酵反应器的操作模式（即分批或进料分批），作为提高柠檬酸产率的策略。最后，在不同的操作条件下对生物精炼厂进行技术和经济评估，以确定工业过程的可行性和盈利能力。

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引用次数: 0

Enhancing hydrogen production in Pd-based membrane reactors via bioethanol autothermal reforming: Turbulence promoters and multitubular designs 通过生物乙醇自热重整提高pd基膜反应器的产氢：湍流促进剂和多管设计

IF 3.9 3区工程技术 Q3 ENERGY & FUELS

Chemical Engineering and Processing - Process Intensification

Pub Date : 2025-12-30 DOI: 10.1016/j.cep.2025.110688

Lei Zhang , Yuyao Lou , Liwei Meng , Tianxiang Li , Tongxun Liu , Xue Han , Yafei Wang

Pd-based membrane reactors (PMRs) offer a promising approach for on-board bioethanol reforming hydrogen production in fuel cell vehicles (FCVs). However, the model of the palladium membrane reactor (PMR) is urgently needed for on-board hydrogen supply. This study developed a kinetic model for single-tube Pd membrane reactors (PMRs) with autothermal reforming (ATR) to systematically evaluate key parameters: reactor length-to-diameter ratio (L/D), gas hourly space velocity (GHSV = 1, 000–3, 000 h^-1), membrane insertion ratio (20–80 %), and catalyst stacking ratio (Volumetric catalyst stacking per unit palladium film area) (2–5 mL/cm²). When membrane insertion ratios ranged from 40 % to 50 %, hydrogen yield (∼5.7 mol/mol), hydrogen recovery (∼96 %), and hydrogen production rate (1.24 g/h) simultaneously reached peak values. In a 7-tube PMR configuration, the hydrogen production rate increased to 7.7 g/h, but hydrogen yield and recovery decreased. The incorporation of baffle plates as turbulence promoters enhanced hydrogen recovery from 80 % to 91 %. In the optimized four-layer PMR design with 37 tubes, the hydrogen production rate reached 41.3 g/h. Furthermore, the conceptual full-scale PMR for fuel cell vehicles is more compact than conventional high-pressure hydrogen storage tanks. This integrated ATR approach with multitubular designs and turbulence promoters enables efficient compact on-board hydrogen production.

钯基膜反应器（PMRs）为燃料电池汽车（fcv）的车载生物乙醇重整制氢提供了一种很有前途的方法。然而，车载供氢迫切需要钯膜反应器（PMR）模型。本研究建立了具有自热重整（ATR）的单管钯膜反应器（PMRs）的动力学模型，以系统地评估关键参数：反应器长径比（L/D）、气体小时空速（GHSV = 1000 - 3000 h-1）、膜插入比（20 - 80%）和催化剂堆积比（单位钯膜面积的体积催化剂堆积）（2-5 mL/cm2）。当膜插入率为40% ~ 50%时，产氢率（~ 5.7 mol/mol）、氢气回收率（~ 96%）和产氢率（1.24 g/h）同时达到峰值。在7管PMR配置下，产氢速率提高到7.7 g/h，但产氢率和回收率下降。加入折流板作为湍流促进剂，使氢气回收率从80%提高到91%。优化后的四层37管PMR制氢速率达到41.3 g/h。此外，用于燃料电池汽车的概念全尺寸PMR比传统的高压储氢罐更紧凑。这种集成的ATR方法采用多管设计和湍流促进器，可以实现高效的紧凑型车载氢气生产。

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引用次数: 0