Chinese Journal of Chemical Engineering最新文献_第3页

Dual-functional Li4SiO4 derived from waste clay bricks for highly stable CO2 capture and efficient thermal energy storage 从废粘土砖中提取的双功能Li4SiO4用于高稳定的CO2捕获和高效的热能储存

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chinese Journal of Chemical Engineering

Pub Date : 2026-01-01 DOI: 10.1016/j.cjche.2025.07.020

Yongqing Ma , Gangyang Liu , Kai Chen , Shikun Wen , Ping Ning , Yu Zhang , Junya Wang

The utilization of solid wastes to prepare Li₄SiO₄ based CO₂ adsorbents and thermochemical energy storage (TES) materials has recently garnered significant interest. Considering practical application conditions, the influence of CO₂ concentration and temperature fluctuations on adsorbent performance remains a key research focus. Among various waste materials, waste clay bricks are particularly suitable for Li₄SiO₄ synthesis due to their high SiO₂ content (60%% to 70%), while enabling waste valorization. Furthermore, it has been demonstrated that heteroatoms present in the waste materials positively influence the CO₂ adsorption performance of Li₄SiO₄-based adsorbents. In this study, Li₄SiO₄ was synthesized for the first time directly from waste clay bricks without pretreatment. Comprehensive characterization revealed that the resulting Li₄SiO₄-based adsorbent exhibits outstanding performance: a high CO₂ capture capacity (27.9% (mass)), excellent cycling stability, and remarkable thermal energy storage capability (876.4 kJ·kg⁻¹). These superior properties position it as one of the most promising high-temperature adsorbents for simultaneous CO₂ capture and thermal energy storage (TES) from fossil fuel flue gase. Moreover, the adsorbent maintained excellent stability under fluctuating temperature and CO₂ concentration. Even at 20% (vol) CO₂ and 500 °C, it achieved a high capacity of 25.7% (mass), reaching equilibrium within 15 min. This CO₂ capture performance is truly impressive.

利用固体废物制备基于Li4SiO4的CO2吸附剂和热化学储能（TES）材料最近引起了人们的极大兴趣。考虑到实际应用条件，CO2浓度和温度波动对吸附剂性能的影响一直是研究的重点。在各种废旧材料中，废旧粘土砖因其SiO2含量高（60% ~ 70%），可实现废物增值，特别适合合成Li4SiO4。此外，研究表明，杂原子的存在对li4sio4基吸附剂的CO2吸附性能有积极的影响。本研究首次以废粘土砖为原料，不经预处理直接合成了Li4SiO4。综合表征表明，所得的li4sio4基吸附剂表现出优异的性能：高CO2捕获能力（27.9%（质量）），良好的循环稳定性，以及显著的储热能力（876.4 kJ·kg−1）。这些优越的性能使其成为同时捕获二氧化碳和从化石燃料烟气中储存热能（TES）的最有前途的高温吸附剂之一。此外，该吸附剂在温度和CO2浓度波动下均保持了良好的稳定性。即使在20% (vol) CO2和500°C下，它也能达到25.7%（质量）的高容量，在15分钟内达到平衡。这种二氧化碳捕获性能确实令人印象深刻。

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引用次数: 0

Electrochemical oscillatory behaviour of manganese ions and its square wave modulation 锰离子的电化学振荡行为及其方波调制

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chinese Journal of Chemical Engineering

Pub Date : 2026-01-01 DOI: 10.1016/j.cjche.2025.07.022

Jiaxing Li , Chunbiao Li , Jie Yang , Zhihao Wu , Qian Zhang , Guocan Zheng , Zuohua Liu , Changyuan Tao

In manganese electrolysis, electrochemical oscillations and manganese dendrite growth are typical nonlinear phenomena critical for energy consumption reduction. Nonetheless, existing research lacks a deep understanding of their underlying mechanisms. In this study, we systematically explored the evolution of anode electrochemical oscillations during manganese electrolysis and designed a square wave circuit to effectively suppress oscillations and dendrite growth while reducing energy consumption. A novel four-dimensional differential equation was introduced to explore the internal dynamic mechanisms of typical nonlinear behaviors. The experimental results showed that while the evolutionary patterns of current and potential oscillation signals were consistent, their waveform directions were opposite. The square wave current effectively suppressed both electrochemical oscillations and the growth of manganese dendrites. Furthermore, compared to direct current electrolysis, the square wave current improved the current efficiency by 3.6% and reduced the energy consumption by 0.32 kW·h·kg⁻¹.

在锰电解过程中，电化学振荡和锰枝晶生长是典型的非线性现象，对降低能耗至关重要。然而，现有的研究缺乏对其潜在机制的深刻理解。在这项研究中，我们系统地探索了锰电解过程中阳极电化学振荡的演变，并设计了一种方波电路来有效地抑制振荡和枝晶生长，同时降低能量消耗。引入一种新的四维微分方程来探讨典型非线性行为的内在动力学机制。实验结果表明，电流和电位振荡信号的演化模式一致，但波形方向相反。方波电流有效抑制了电化学振荡和锰枝晶的生长。与直流电解相比，方波电解的电流效率提高了3.6%，能耗降低了0.32 kW·h·kg−1。

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引用次数: 0

Attention-enhanced multi-time scale LSTM for soft sensor modeling of corn starch liquefaction 基于注意力增强多时间尺度LSTM的玉米淀粉液化软测量建模

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chinese Journal of Chemical Engineering

Pub Date : 2026-01-01 DOI: 10.1016/j.cjche.2025.09.016

Yu Zhuang , Zhongyi Zhang , Jin Tao , Yi Li , Fan Li , Yu Wang , Lei Zhang , Jian Du

Data-driven deep learning modeling has been increasingly applied to quality prediction in complex chemical processes. However, the data show complex temporal features due to different residence times and strong coupling relationships among chemical entities. This study proposes a multi-scale temporal feature extraction module to extract local dynamic temporal features across different time scales and combines it with long short-term memory (LSTM) networks to capture global temporal patterns, thereby taking full advantage of available data. In addition, variable-wise channel attention is integrated into the model to enhance attention on the essential parts of the feature maps and improve predictive performance. Furthermore, by analyzing the attention weights, the model quickly identifies the key variables that significantly affect the predictions. Finally, the model is applied to a real corn starch liquefaction process and achieves an accurate product quality prediction with an R² value of 0.9392, which represents a 4% to 9% improvement over traditional models and demonstrates the superiority of the proposed approach.

数据驱动的深度学习建模越来越多地应用于复杂化工过程的质量预测。然而，由于停留时间的不同和化学实体之间的强耦合关系，数据显示出复杂的时间特征。本研究提出了一个多尺度时间特征提取模块，提取不同时间尺度的局部动态时间特征，并将其与长短期记忆（LSTM）网络相结合，捕捉全球时间模式，从而充分利用可用数据。此外，将可变通道注意力集成到模型中，以增强对特征映射关键部分的关注，提高预测性能。此外，通过分析注意力权重，该模型可以快速识别出对预测有显著影响的关键变量。最后，将该模型应用于实际玉米淀粉液化过程，实现了准确的产品质量预测，R2值为0.9392，比传统模型提高了4% ~ 9%，证明了该方法的优越性。

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引用次数: 0

Particle-scale mass transfer characteristics of composite microspheres for cesium ion adsorption in nuclear wastewater within microchannel adsorbers 复合微球吸附核废水中铯离子的颗粒级传质特性

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chinese Journal of Chemical Engineering

Pub Date : 2026-01-01 DOI: 10.1016/j.cjche.2025.09.006

Hongjing Dai , Ziyi Bo , Sifang Wang , Shengyang Tao , Xuehu Ma

To efficiently remove radioactive nuclides from nuclear industry wastewater and minimize the generation of radioactive secondary waste, this study proposes the concept of a magnetically controlled microchannel adsorber based on magnetic adsorbents. A novel protocol for achieving high adsorption performance in microchannel adsorbers with periodically distributed particles is developed using the particle-resolved computational fluid dynamics (CFD) method, which addresses the limitations of traditional porous media flow models. To align simulation results more closely with practical scenarios, a typical high-efficiency magnetic adsorbent, magnetic sodium alginate/cobalt-based Prussian blue (M-SA/PB-Co), was synthesized. The M-SA/PB-Co microspheres exhibit a uniform size distribution (300–600 μm), and their Cs⁺ adsorption follows the pseudo-second-order kinetic model with a Langmuir saturated adsorption capacity of 124.84 mg·g⁻¹. The performance parameters of M-SA/PB-Co, obtained from characterization and adsorption experiments, were integrated into CFD simulations. CFD results indicate that as the flow velocity increases, the flow field gradually transitions with vortices expanding in scale and streamline bifurcation points shifting rearward. The Cs⁺ concentration decreases progressively along the flow direction, with a more pronounced reduction in the vortex regions downstream of particles. The characteristic velocity and characteristic concentration of specific regions surrounding the particles were extracted based on boundary layer distribution. The amount of concentration reduction of Cs⁺ through particle is positively correlated with the characteristic concentration and negatively correlated with the characteristic velocity. The number of microspheres required in the microchannel adsorber was optimized using the response surface method. Compared with industrial fixed-bed adsorbers, microchannel adsorbers exhibit 8–10 times higher processing capacity, demonstrating significant industrial application potential.

为了有效去除核工业废水中的放射性核素，最大限度地减少放射性二次废物的产生，本研究提出了基于磁性吸附剂的磁控微通道吸附器的概念。利用颗粒分解计算流体动力学（CFD）方法，开发了一种新的方案，用于在具有周期性分布颗粒的微通道吸附剂中实现高吸附性能，解决了传统多孔介质流动模型的局限性。为了使模拟结果更接近实际情况，合成了一种典型的高效磁性吸附剂——磁性海藻酸钠/钴基普鲁士蓝（M-SA/PB-Co）。M-SA/PB-Co微球粒径分布均匀（300 ~ 600 μm），对Cs+的吸附符合准二级动力学模型，Langmuir饱和吸附量为124.84 mg·g−1。将表征和吸附实验所得的M-SA/PB-Co的性能参数整合到CFD模拟中。CFD结果表明，随着流速的增加，流场逐渐发生过渡，旋涡规模扩大，流线分岔点后移。Cs+浓度沿流动方向逐渐降低，在颗粒下游的涡区降低更为明显。基于边界层分布提取颗粒周围特定区域的特征速度和特征浓度。Cs+通过粒子的浓度降低量与特征浓度呈正相关，与特征速度负相关。利用响应面法优化了微通道吸附器所需的微球数量。与工业固定床吸附器相比，微通道吸附器的处理能力提高了8-10倍，具有显著的工业应用潜力。

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引用次数: 0

Cocrystal engineering for efficient separation of 4-bromo-3-methylphenol: Design of experiments, characterization, crystal structure and calculation 高效分离4-溴-3-甲基苯酚的共晶工程：实验设计、表征、晶体结构和计算

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chinese Journal of Chemical Engineering

Pub Date : 2026-01-01 DOI: 10.1016/j.cjche.2025.08.021

Chunxiao Wang, Shuai Wang, Hongsen Zhang, Chao Li, Renzhong Qiao

4-Bromo-3-methylphenol (BMP) is an important chemical intermediate with wide applications in the fields of medicine and pesticides. The synthesis of BMP from m-cresol via bromination is easy to carry out on an industrial scale. However, due to the formation of regioisomeric impurities during bromination and the low melting point of BMP, the separation process is prone to the formation of oily substances, resulting in low yield and purity. In this work, a new cocrystallization engineering approach was proposed to separate and purify BMP. Through design of experiments, the cocrystallization process of BMP and triethylenediamine (DABCO) was optimized using a minimum-run resolution IV screening design combined with response surface methodology. In addition, the obtained 2BMP-DABCO powder was characterized by thermal analysis, powder X-ray diffraction, infrared spectroscopy, and scanning electron microscopy. Single crystals of 2BMP-DABCO were grown from acetone by slow evaporation, and detailed structural information was obtained through single-crystal X-ray diffraction. The self-assembly mechanism was further clarified by density functional theory calculations. This study provides a simple, robust, and scalable method for the production of BMP and offers a reference for the separation and purification of phenolic substances.

4-溴-3-甲基苯酚（BMP）是一种重要的化学中间体，在医药和农药领域有着广泛的应用。间甲酚经溴化反应合成BMP易于工业化生产。但由于溴化过程中会形成区域异构体杂质，且BMP熔点较低，分离过程容易形成油性物质，导致收率和纯度较低。本文提出了一种新的共结晶工程方法来分离纯化BMP。通过实验设计，采用最小运行分辨率IV筛选设计结合响应面法优化BMP与三乙二胺（DABCO）共结晶工艺。此外，通过热分析、粉末x射线衍射、红外光谱和扫描电镜对所得的2BMP-DABCO粉末进行了表征。用丙酮缓慢蒸发法制备了2BMP-DABCO单晶，并通过x射线单晶衍射获得了详细的结构信息。通过密度泛函理论计算进一步阐明了自组装机理。本研究为BMP的生产提供了一种简单、可靠、可扩展的方法，为酚类物质的分离纯化提供了参考。

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引用次数: 0

Study on pollutant reduction effect and environmental benefits of ultra-low emission retrofit of iron and steel sintering process: A case study of a steel group in Gansu province 钢铁烧结工艺超低排放改造的污染物减排效果及环境效益研究——以甘肃省某钢铁集团为例

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chinese Journal of Chemical Engineering

Pub Date : 2026-01-01 DOI: 10.1016/j.cjche.2025.08.006

Yuhao Zhang , Peiqiang Zhao , Mingli Li , Xinglin Zhang , Zewei Liu , Dahai Yan , Chao Chen , Wei Fang

Iron and steel industry is one of the main sources of air pollution emissions in China. The sintering process is an important link in the blast furnace ironmaking process, but it is also accompanied by a large number of pollutants. Under the background of ultra-low emissions, iron and steel enterprises urgently need to upgrade their existing processes to address the existing process in practical application problems. In this study, a steel group in Gansu Province was taken as an example. By comparing and analyzing the pollutant emission characteristics before and after the ultra-low emission retrofit, the collaborative control effect of the combined process on SO₂, NO_x, particulate matter, and dioxins after the new retrofit was systematically evaluated. The results show that after the retrofit, the concentrations of particulate matter, SO₂ and NO_x have dropped to near-zero levels, and the dioxin removal efficiency has reached 98.87%, with all indicators being better than the national ultra-low emission standards. The study confirms that the optimal combination of multi-pollutant collaborative treatment technologies is the key to achieving efficient emission reduction, among which selective catalytic reduction technology has a particularly significant synergistic removal effect on NO_x and dioxins. This study provides an important technical reference and practical basis for the ultra-low emission retrofit of the steel industry, and has important guiding significance for promoting the green retrofit of the industry. Its ultra-low emission retrofit is of great significance for achieving green and low-carbon development.

钢铁工业是中国大气污染排放的主要来源之一。烧结过程是高炉炼铁过程中的重要环节，但同时也伴随着大量的污染物。在超低排放背景下，钢铁企业迫切需要对现有工艺进行升级改造，以解决现有工艺在实际应用中存在的问题。本研究以甘肃省某钢铁集团为例。通过对比分析超低排放改造前后污染物排放特征，系统评价新改造后组合工艺对SO2、NOx、颗粒物、二恶英的协同控制效果。结果表明：改造后，颗粒物、SO2和NOx浓度降至接近零的水平，二恶英去除效率达到98.87%，各项指标均优于国家超低排放标准。研究证实，多污染物协同处理技术的优化组合是实现高效减排的关键，其中选择性催化还原技术对NOx和二恶英的协同去除效果尤为显著。本研究为钢铁行业的超低排放改造提供了重要的技术参考和实践依据，对推动钢铁行业绿色改造具有重要的指导意义。其超低排放改造对实现绿色低碳发展具有重要意义。

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引用次数: 0

Liquid–liquid two-phase flow and droplet formation in a T-junction microchannel t型结微通道中液-液两相流动和液滴形成

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chinese Journal of Chemical Engineering

Pub Date : 2026-01-01 DOI: 10.1016/j.cjche.2025.09.009

Nerisha Tuladhar, Muhammad Rafay Shahzad, Zien Huang, Sandeep Dhital, Taotao Fu

This study investigates the droplet formation for the liquid–liquid two-phase flow within a square T-junction microchannel through numerical simulation using volume of fluid method and experimental visualization using high-speed camera imaging. The T-junction microchannel has a cross-sectional width of 0.6 mm and a total length of 27.3 mm. The solution of cyclohexane with 2% and 3% mass concentrations of sorbitan trioleate surfactant were used as the continuous phase, and water was used as the dispersed phase. Slug flow, characteristic of squeezing regime, were predominantly observed. The effects of liquid–liquid two-phase flow rate ratio, and dimensionless number on droplet size, and pressure drop were investigated. The squeezing regime was mapped for 0.0005 ≤ Ca_c ≤ 0.0052 (capillary number) and 0.1 ≤ q ≤ 10 (flow rate ratio). The pressure drops of slugs were in the range from 40 Pa to 200 Pa. The slug lengths were measured between 1 mm and 9 mm. A universal flow map dependent on Ca_cRe_d^0.5 are projected to investigate the droplet formation behavior in T-junction microchannel. Correlation expressions are proposed to predict pressure drops and the slug lengths for liquid–liquid two-phase flow in a square T-junction microchannel, using dimensionless numbers such as flow rate ratio and capillary number. The result shows that large continuous phase flow rates facilitate smaller slugs, whereas higher dispersed phase flow rates result in longer shorts.

本文采用流体体积法对方形t型结微通道内液-液两相流动的液滴形成进行了数值模拟，并利用高速摄像机成像技术进行了实验可视化。t结微通道的横截面宽度为0.6 mm，总长度为27.3 mm。以质量浓度为2%和3%的三油酸山梨醇表面活性剂环己烷溶液为连续相，水为分散相。主要观察到具有挤压特征的段塞流。研究了液液两相流量比和无因次数对液滴尺寸和压降的影响。在0.0005≤Cac≤0.0052（毛细数）和0.1≤q≤10（流量比）条件下绘制挤压状态图。段塞的压降在40 ~ 200 Pa之间。段塞长度测量在1毫米到9毫米之间。利用基于CacRed0.5的通用流图来研究t型结微通道中的液滴形成行为。利用流量比和毛细数等无因次数，提出了方形t结微通道液-液两相流压降和段塞长度的相关表达式。结果表明，大的连续相流量有利于形成较小的段塞，而大的分散相流量有利于形成较长的短段塞。

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引用次数: 0

In-situ synthesis of rare earth Y-type zeolite enhanced by high-gravity technology 高重力强化稀土y型沸石的原位合成

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chinese Journal of Chemical Engineering

Pub Date : 2026-01-01 DOI: 10.1016/j.cjche.2025.06.038

Lang Xu , Wenhui Hou , Houmei You , Baochang Sun , Guangwen Chu , Jianfeng Chen

Rare earth (RE) Y-type zeolite was synthesized in situ by acidic co-hydrolysis route and hydrothermal method. The key process parameters were optimized based on the RE utilization rate. The effect of inducing a rotating packed bed (RPB) in premixing and crystallization on crystallinity and RE utilization rate was further investigated. The results indicate that lanthanide (La) cations are successfully introduced into the sodalite cage of Y-type zeolite. The optimized conditions are that the molar ratio of Si/La is 150, premixing for 5 h, crystallization at 90 °C for 18 h, and calcination at 550 °C for 3.5 h. At this stage, the RE utilization rate reaches 74.5%. Compared with the conventional stirred tank reactor (STR), RPB can effectively shorten the premixing time and crystallization time by 4.3 h and 6 h, improve the crystallinity by 23% and RE utilization rate by 7.5%. The RE utilization rate is more than 80% by RPB, surpassing the effectiveness of using the one-exchange one-calcination process in the traditional liquid ion exchange process. It is expected to provide a reference for the in-situ efficient and green synthesis of RE zeolite.

采用酸性共水解法和水热法原位合成稀土y型沸石。基于可再生能源的利用率对关键工艺参数进行了优化。进一步研究了预混结晶过程中诱导旋转填充床（RPB）对稀土结晶度和稀土利用率的影响。结果表明，镧系离子被成功地引入y型沸石的钠盐笼中。优化条件为Si/La摩尔比为150，预混5h， 90℃结晶18h， 550℃煅烧3.5 h，此时稀土利用率达到74.5%。与传统搅拌槽反应器（STR）相比，RPB可有效缩短预混时间4.3 h和结晶时间6 h，结晶度提高23%，稀土利用率提高7.5%。RPB的RE利用率达80%以上，超过了传统液体离子交换工艺中采用一交换一煅烧工艺的效果。为稀土分子筛的原位高效绿色合成提供参考。

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引用次数: 0

Enhanced photocatalytic H2O2 production by morphology-controlled CdS Nanocatalysts 形态控制的CdS纳米催化剂增强光催化H2O2生成

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chinese Journal of Chemical Engineering

Pub Date : 2026-01-01 DOI: 10.1016/j.cjche.2025.07.017

Qixin Zhang , Yifan Yang , Haocun Wang, Junjie Bian, Guobo Chen, Chunhu Li

CdS photocatalysts have broad application prospects in environmental purification, energy conversion, and organic synthesis. However, their practical use is often hindered by the rapid recombination of photo-generated electron-hole pairs, which limits their efficiency on various reactions. Controlling morphological structures and crystal facets engineering are effective methods to enhance the photocatalytic performance of CdS. In this work, two different forms of CdS photocatalysts were synthesized by a hydrothermal method, namely nanoflower-shaped (CdS-NF) and nanorod-shaped (CdS-NR) for hydrogen peroxide (H₂O₂) production. The exposed crystal planes of CdS-NF are mainly (0 0 2) planes, while the accesible crystal planes of CdS-NR are notablly (1 0 1) planes. Notably, the photocatalytic hydrogen peroxide production yield of CdS-NR was high at 1225.13 μmol·h⁻¹·g⁻¹, which is 1.78 times higher than the H₂O₂ generation rate of CdS-NF. Moreover, through free radical capture experiments and DFT calculations, the reaction pathway was further explored. Both different configurations of cadmium sulfide based photocatalysts conform to the reaction mechanism of oxygen reduction as the main and water oxidation as the auxiliary.

CdS光催化剂在环境净化、能量转化、有机合成等方面具有广阔的应用前景。然而，它们的实际应用常常受到光产生的电子-空穴对的快速重组的阻碍，这限制了它们在各种反应中的效率。控制形态结构和晶面工程是提高CdS光催化性能的有效方法。本文采用水热法合成了两种不同形式的CdS光催化剂，即纳米花状（CdS- nf）和纳米棒状（CdS- nr），用于过氧化氢（H2O2）的生产。cd - nf的暴露晶面以（0 ~ 2）面为主，而cd - nr的可及晶面以（1 ~ 1）面为主。值得注意的是，CdS-NR光催化过氧化氢产率高达1225.13 μmol·h−1·g−1，是CdS-NF H2O2产率的1.78倍。通过自由基捕获实验和DFT计算，进一步探索了反应途径。两种不同构型的硫化镉基光催化剂均符合以氧还原为主、水氧化为辅的反应机理。

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引用次数: 0

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chinese Journal of Chemical Engineering

Pub Date : 2026-01-01 DOI: 10.1016/j.cjche.2025.08.018

Ping Wu , Yuxuan Ni , Huaimin Wang , Xuguang Hu , Zhenquan Wu , Jian Jiang , Yaowu Hu

Partial least squares (PLS) model maximizes the covariance between process variables and quality variables, making it widely used in quality-related fault detection. However, traditional PLS methods focus primarily on linear processes, leading to poor performance in dynamic nonlinear processes. In this paper, a novel quality-related fault detection method, named DiCAE-PLS, is developed by combining dynamic-inner convolutional autoencoder with PLS. In the proposed DiCAE-PLS method, latent features are first extracted through dynamic-inner convolutional autoencoder (DiCAE) to capture process dynamics and nonlinearity from process variables. Then, a PLS model is established to build the relationship between the extracted latent features and the final product quality. To detect quality-related faults, Hotelling's T² statistic is employed. The developed quality-related fault detection is applied to the widely used industrial benchmark of the Tennessee.

偏最小二乘（PLS）模型使过程变量与质量变量之间的协方差最大化，在质量相关故障检测中得到了广泛的应用。然而，传统的PLS方法主要关注线性过程，导致在动态非线性过程中的性能不佳。本文将动态内卷积自编码器（dynamic-inner convolutional autoencoder, DiCAE）与PLS相结合，提出了一种新的质量相关故障检测方法DiCAE-PLS，该方法首先通过动态内卷积自编码器（dynamic-inner convolutional autoencoder, DiCAE）提取潜在特征，捕捉过程变量的动态和非线性。然后，建立PLS模型，建立提取的潜在特征与最终产品质量之间的关系。为了检测质量相关的故障，我们使用了Hotelling’s T2统计量。开发的质量相关故障检测方法已应用于田纳西州广泛使用的工业基准。

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引用次数: 0