Process Safety and Environmental Protection最新文献

Enhanced ozone decomposition in humid conditions by bismuth-doped OMS-2 铋掺杂OMS-2在潮湿条件下增强臭氧分解

IF 7.8 2区环境科学与生态学

Process Safety and Environmental Protection Pub Date : 2025-07-19 DOI: 10.1016/j.psep.2025.107618

Tianhong Mei, Dilong Qiang, Hongyang Jin, Juncheng Li, Liwei Qiu, Wei Liu, Zhen Li, Songjian Zhao

{"title":"Enhanced ozone decomposition in humid conditions by bismuth-doped OMS-2","authors":"Tianhong Mei, Dilong Qiang, Hongyang Jin, Juncheng Li, Liwei Qiu, Wei Liu, Zhen Li, Songjian Zhao","doi":"10.1016/j.psep.2025.107618","DOIUrl":"https://doi.org/10.1016/j.psep.2025.107618","url":null,"abstract":"Octahedral molecular sieve manganese oxide (OMS-2) has attracted much attention due to its excellent catalytic properties in ozone decomposition studies. However, it is limited in practical application by low moisture resistance. This study investigates enhancing OMS-2's humidity tolerance and ozone decomposition capability through bismuth (Bi) doping. Multiple characterization techniques confirm successful Bi incorporation and a significant increase in the specific surface area. Performance testing demonstrates that 10% Bi-OMS-2 achieves 100% ozone conversion and maintains ~ 90% efficiency for 120<ce:hsp sp=\"0.25\"></ce:hsp>min at 60% relative humidity. In the catalyst system, the oxygen defect sites between Mn<ce:sup loc=\"post\">3</ce:sup>⁺ and Mn<ce:sup loc=\"post\">4</ce:sup>⁺ and their electron transfer critically govern the O<ce:inf loc=\"post\">3</ce:inf> decomposition process. The enhanced catalytic activity towards ozone decomposition and water resistance demonstrated by the 10% Bi-OMS-2 material can be attributed to the abundant oxygen vacancies formed and the increased water contact angle following the incorporation of Bi. The present results provide a solid theoretical basis for constructing high-performance ozone elimination solutions with good moisture resistance.","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"109 1","pages":""},"PeriodicalIF":7.8,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic failure assessment of well barrier system of underground gas storage using object-oriented Bayesian network 基于面向对象贝叶斯网络的地下储气库井障系统动态失效评价

IF 7.8 2区环境科学与生态学

Process Safety and Environmental Protection Pub Date : 2025-07-19 DOI: 10.1016/j.psep.2025.107616

Xinhong Li, Yaoqi Zhang, Renren Zhang, Ziyue Han

引用次数: 0

Dual-Warning Model for Coal Spontaneous Combustion Temperature Prediction and Risk Classification Based on BO-LightGBM 基于BO-LightGBM的煤自燃温度预测与风险分类双预警模型

IF 7.8 2区环境科学与生态学

Process Safety and Environmental Protection Pub Date : 2025-07-19 DOI: 10.1016/j.psep.2025.107624

Lihua Long, Quanlin Shi, Qingjie Zhang, Jundong Hu, Hemeng Zhang

{"title":"Dual-Warning Model for Coal Spontaneous Combustion Temperature Prediction and Risk Classification Based on BO-LightGBM","authors":"Lihua Long, Quanlin Shi, Qingjie Zhang, Jundong Hu, Hemeng Zhang","doi":"10.1016/j.psep.2025.107624","DOIUrl":"https://doi.org/10.1016/j.psep.2025.107624","url":null,"abstract":"This study develops a dual-warning model for coal spontaneous combustion temperature prediction and risk classification based on BO-LightGBM. Five gas features (O₂, CO, C₂H₄, CO/ΔO₂, and C₂H₄/C₂H₆) were selected via Pearson correlation analysis, and six temperature-based risk levels were defined to characterize different combustion stages. The BO-LightGBM model was constructed using five-fold cross-validation and early stopping, with hyperparameters optimized separately for regression and classification tasks. Compared with grid search and random search, Bayesian Optimization significantly improved efficiency—reducing parameter optimization time by 91.2% and 60.0% in regression, and by 97.9% and 85.1% in classification, respectively. Performance comparisons further validate the superiority of BO-LightGBM. The model yielded a MAE of 10.9844, a MAPE of 7.57, a RMSE of 22.5728, and an R² of 0.9129 in regression tasks, and achieved an accuracy of 90.00 percent, a recall of 0.9000, a precision of 0.8920, and an F1 score of 0.8959 in classification tasks. These results confirm that BO-LightGBM offers notable advantages in both predictive accuracy and computational efficiency, providing a reliable early warning tool for spontaneous combustion risk assessment in coal mines.","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"9 1","pages":""},"PeriodicalIF":7.8,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel early warning method for thermal runaway of lithium-ion batteries based on mechanical stress signal 基于机械应力信号的锂离子电池热失控预警新方法

IF 7.8 2区环境科学与生态学

Process Safety and Environmental Protection Pub Date : 2025-07-19 DOI: 10.1016/j.psep.2025.107626

Chenrui She, Chaoshi Liu, Yuxuan Li, Xiaoyang Wang, Hong Ye, Chunmei Zeng, Wenxin Mei, Qingsong Wang

{"title":"A novel early warning method for thermal runaway of lithium-ion batteries based on mechanical stress signal","authors":"Chenrui She, Chaoshi Liu, Yuxuan Li, Xiaoyang Wang, Hong Ye, Chunmei Zeng, Wenxin Mei, Qingsong Wang","doi":"10.1016/j.psep.2025.107626","DOIUrl":"https://doi.org/10.1016/j.psep.2025.107626","url":null,"abstract":"Thermal runaway constitutes a critical safety hazard in lithium-ion batteries, posing substantial risks to both human and property safety. Therefore, early warning is essential for mitigating these risks. Current monitoring strategies predominantly rely on voltage, current, temperature, and gas signals. However, these parameters exhibit limitations: electrical signals (voltage and current) and temperature demonstrate fluctuations significantly only before thermal runaway, while gas detection becomes feasible only after the opening of safety valve. These constraints result in insufficient warning time. This study systematically investigates the mechanical stress evolution and distribution on the surface of 280 Ah lithium iron phosphate batteries during overheating-induced thermal runaway across various stages of charge. The stress evolution is divided into four stages: exponential growth, linear growth, abrupt drop, and rebound. Subsequently, the underlying mechanisms driving each stage are elucidated through comprehensive analysis of thermal runaway. Notably, we established an innovative early warning method by identifying the transition point from exponential to linear growth, enabling thermal runaway prediction over 30<ce:hsp sp=\"0.25\"></ce:hsp>minutes in advance, which is also prior to the opening of safety valve. Furthermore, the stress distribution pattern when the safety valve opens is analyzed to provide guidance for optimized pressure sensor placement, thereby reducing implementation costs.","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"50 1","pages":""},"PeriodicalIF":7.8,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CBERTaXGB: A Domain-Specific Transformer-XGBoost Hybrid for Chemical Toxicity and Flammability Prediction CBERTaXGB：用于化学毒性和可燃性预测的特定领域变压器- xgboost混合动力车

IF 7.8 2区环境科学与生态学

Process Safety and Environmental Protection Pub Date : 2025-07-19 DOI: 10.1016/j.psep.2025.107615

Kunsen Lin, Boyang Liao, Xiaochuan Chen, Bohao Xu, Miaoya Jiang, Xuefei Zhou

{"title":"CBERTaXGB: A Domain-Specific Transformer-XGBoost Hybrid for Chemical Toxicity and Flammability Prediction","authors":"Kunsen Lin, Boyang Liao, Xiaochuan Chen, Bohao Xu, Miaoya Jiang, Xuefei Zhou","doi":"10.1016/j.psep.2025.107615","DOIUrl":"https://doi.org/10.1016/j.psep.2025.107615","url":null,"abstract":"Accurate prediction of chemical toxicity and flammability is essential for the effective implementation of the NFPA 704 Hazard Rating System, underpinning safety protocols in chemical lifecycle management. Traditional experimental methods, such as OECD 423 toxicity tests and ASTM E681 flammability assessments, face practical limitations due to extensive chemical inventories and continuous emergence of novel substances. This study introduces the CBERTaXGB framework, a hybrid model integrating Transformer-based molecular feature extraction (ChemBERTa) with XGBoost's optimized decision architecture, demonstrating exceptional predictive performance for organic hazardous chemicals. The model outperformed existing baseline models, including PR-AUC values of 0.994 and 0.996, AU-ROC of 0.971 and 0.923, and F1-scores of 0.972 and 0.996 for toxicity and flammability classification, respectively, while maintaining high precision and recall. Interpretability analysis confirmed CBERTaXGB's ability to identify critical molecular features such as aromatic stability patterns, electrophilic functional groups, and ester bond configurations, which align with established chemical mechanisms. t-SNE visualizations further validated distinct structural clusters in molecular embeddings. Application to environmental hazard screening of organic substances predicted hazardous properties in 1,319 chemicals, highlighting its practical utility in prioritizing chemicals for enhanced safety measures. CBERTaXGB thus offers a robust, interpretable, and regulatory-compliant approach, significantly advancing intelligent chemical hazard assessment and contributing to environmental protection and public health safety.","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"12 1","pages":""},"PeriodicalIF":7.8,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Pilot Scale High-Rate Contact Stabilization Process with Primary Sedimentation for Energy-Neutral Wastewater Treatment 中试规模高速率接触稳定初沉工艺处理能源中性废水

IF 7.8 2区环境科学与生态学

Process Safety and Environmental Protection Pub Date : 2025-07-19 DOI: 10.1016/j.psep.2025.107625

Emir Kasım Demir, Dilara Sancar, Baris Calli, Neslihan Semerci, Erkan Sahinkaya

{"title":"A Pilot Scale High-Rate Contact Stabilization Process with Primary Sedimentation for Energy-Neutral Wastewater Treatment","authors":"Emir Kasım Demir, Dilara Sancar, Baris Calli, Neslihan Semerci, Erkan Sahinkaya","doi":"10.1016/j.psep.2025.107625","DOIUrl":"https://doi.org/10.1016/j.psep.2025.107625","url":null,"abstract":"This study investigates the organic carbon removal performance and carbon recovery potential of a pilot-scale high-rate contact stabilization (HiCS) process with primary sedimentation (PS+HiCS), implemented at an advanced biological wastewater treatment plant (WWTP). COD fractionation of the grit chamber effluent revealed particulate, colloidal, and dissolved COD fractions of 74, 2, and 24%, respectively. The PS+HiCS process was operated continuously at a flow rate of 1 m<ce:sup loc=\"post\">3</ce:sup>/h for 214 days, with SRTs ranging from 0.75 to 2 days. HRTs were maintained at 23<ce:hsp sp=\"0.25\"></ce:hsp>min in the contact tank (CT) and 72<ce:hsp sp=\"0.25\"></ce:hsp>min in the stabilization tank (ST). Dissolved oxygen (DO) concentrations in both tanks were controlled at 1-3<ce:hsp sp=\"0.25\"></ce:hsp>mg/L, except for the SRT of 0.63 days when CT was intentionally kept non-aerated. A total COD removal efficiency of 85% was achieved, with the oxidation rate reduced to 12.5%. COD was captured with an efficiency of up to 65% at 1 day of SRT. At an SRT of 0.63 days, the process demonstrated a net energy gaining potential of 0.32 kWh/m<ce:sup loc=\"post\">3</ce:sup> with <100<ce:hsp sp=\"0.25\"></ce:hsp>mg/L effluent COD. This study highlights that domestic wastewater can be treated in an energy-neutral or energy-positive manner using the proposed PS+HiCS process, providing a sustainable solution for wastewater management.","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"15 1","pages":""},"PeriodicalIF":7.8,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nature-inspired carbon storage and transport: encapsulated CO2 hydrate flow in pipes to imitate blood flow in vessels 自然启发的碳储存和运输：封装的二氧化碳水合物在管道中流动，模仿血管中的血液流动

IF 7.8 2区环境科学与生态学

Process Safety and Environmental Protection Pub Date : 2025-07-19 DOI: 10.1016/j.psep.2025.107621

Yuxuan Zhang, Alireza Rahbari, Lijin Chen, Benjapon Chalermsinsuwan, Xiaoqiang Zhai, Fei Wang, Mingsheng Liu, Xiaolin Wang

{"title":"Nature-inspired carbon storage and transport: encapsulated CO2 hydrate flow in pipes to imitate blood flow in vessels","authors":"Yuxuan Zhang, Alireza Rahbari, Lijin Chen, Benjapon Chalermsinsuwan, Xiaoqiang Zhai, Fei Wang, Mingsheng Liu, Xiaolin Wang","doi":"10.1016/j.psep.2025.107621","DOIUrl":"https://doi.org/10.1016/j.psep.2025.107621","url":null,"abstract":"Hydrate slurry has been recognized as an efficient and cost-effective method for CO<ce:inf loc=\"post\">2</ce:inf> transport; however, its practical application is constrained by risks of plugging and agglomeration due to hydrate deposition. Here, we propose a new concept for hydrate-based carbon transport utilizing encapsulated hydrate flow, inspired by the transport of red blood cells (RBCs) in blood vessels. Experiments and computational fluid dynamics-discrete element method (CFD-DEM) simulations are conducted to investigate the flow dynamics and dissociation kinetics of CO₂ hydrates encapsulated in RBC-shaped capsules for pipeline transport. The dissociation rate constant is determined by optimizing the model against the experimental dissociation data. The results demonstrate that a higher capsule-to-pipe diameter ratio effectively enhances flow stability, reduces both hydrate dissociation and pressure drop for a given hydrate quantity. Comparative analyses indicate that for various hydrate volume fractions, the pressure drop gradients of the encapsulated hydrate flow are reduced by up to 92% compared to the traditional slurry flow at flow rates from 0.005 to 0.0063<ce:hsp sp=\"0.25\"></ce:hsp>m³/s. Additionally, the flow with RBC-shaped capsules consistently exhibit lower pressure drops compared to spherical ones under identical conditions. The improved performance of encapsulated hydrate flow is attributed to differences in flow rheology, viscosity, and particle-particle and particle-wall interactions, demonstrating the potential of encapsulated hydrate transport to enhance carbon storage and pipeline transport efficiency while mitigating risks of pipeline blockage and CO₂ release, critical for process safety in carbon capture and storage (CCS) systems.","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"40 1","pages":""},"PeriodicalIF":7.8,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Removal of toxic pollutants released from plastic sources using activated carbon derived from agricultural waste 使用从农业废弃物中提取的活性炭去除塑料源释放的有毒污染物

IF 7.8 2区环境科学与生态学

Process Safety and Environmental Protection Pub Date : 2025-07-19 DOI: 10.1016/j.psep.2025.107610

Huong Pham Thi, Minh Viet Nguyen

{"title":"Removal of toxic pollutants released from plastic sources using activated carbon derived from agricultural waste","authors":"Huong Pham Thi, Minh Viet Nguyen","doi":"10.1016/j.psep.2025.107610","DOIUrl":"https://doi.org/10.1016/j.psep.2025.107610","url":null,"abstract":"Plastic pollution is a major environmental issue, negatively impacting ecosystems, water resources, and human health. Among the various pollutants derived from the plastics industry, bisphenol A (P-BPA) is one of the most common and is frequently detected in surface water, groundwater, and even drinking water at varying concentrations around the world. This study proposes a simple and cost-effective method for removing P-BPA using activated carbon derived from agricultural waste (AC-AW) and its modified form (MAC-AW). The porous structure, high specific surface area, and various surface functional groups of AC-AW were confirmed by Scanning Electron Microscopy (SEM), Brunauer–Emmett–Teller (BET) surface area analysis, and Fourier Transform Infrared Spectroscopy (FT-IR), respectively. The maximum adsorption capacities of P-BPA at pH 6.0 were determined to be 238.09<ce:hsp sp=\"0.25\"></ce:hsp>mg/g for MAC-AW and 188.67<ce:hsp sp=\"0.25\"></ce:hsp>mg/g for AC-AW. Besides, MAC-AW was able to remove 95.8 and 86.1% of P-BPA from municipal and industrial wastewater, respectively. It also kept a high P-BPA removal efficiency (91%) after four reuse cycles, suggesting the potential of activated carbon derived from agricultural waste for practical application in water treatment. In addition, the adsorption mechanisms, benefits, and challenges of using AC-AW for removing P-BPA released from plastic sources were highlighted.","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"126 1","pages":""},"PeriodicalIF":7.8,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Attention-based multiscale temporal fusion network for uncertain-mode fault diagnosis in multimode processes 基于注意力的多尺度时间融合网络在多模式过程中的不确定模式故障诊断

IF 7.8 2区环境科学与生态学

Process Safety and Environmental Protection Pub Date : 2025-07-19 DOI: 10.1016/j.psep.2025.107554

Guangqiang Li, M. Amine Atoui, Xiangshun Li

{"title":"Attention-based multiscale temporal fusion network for uncertain-mode fault diagnosis in multimode processes","authors":"Guangqiang Li, M. Amine Atoui, Xiangshun Li","doi":"10.1016/j.psep.2025.107554","DOIUrl":"https://doi.org/10.1016/j.psep.2025.107554","url":null,"abstract":"Fault diagnosis in multimode processes plays a critical role in ensuring the safe operation of industrial systems across multiple modes. It faces a great challenge yet to be addressed – that is, the significant distributional differences among monitoring data from multiple modes make it difficult for the models to extract shared feature representations related to system health conditions. In response to this problem, this paper introduces a novel method called attention-based multiscale temporal fusion network. The multiscale depthwise convolution and gated recurrent unit are employed to extract multiscale contextual local features and long-short-term features. Instance normalization is applied to suppress mode-specific information. Furthermore, a temporal attention mechanism is designed to focus on critical time points with higher cross-mode shared information, thereby enhancing the accuracy of fault diagnosis. The proposed model is applied to Tennessee Eastman process dataset and three-phase flow facility dataset. The experiments demonstrate that the proposed model achieves superior diagnostic performance and maintains a small model size. The source code will be available on GitHub at <ce:inter-ref xlink:href=\"https://github.com/GuangqiangLi/AMTFNet\" xlink:type=\"simple\">https://github.com/GuangqiangLi/AMTFNet</ce:inter-ref>.","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"24 1","pages":""},"PeriodicalIF":7.8,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel separation process for the bromide and carbonate from the air blow-out alkali absorbed liquid and its phase equilibrium 从吹出碱吸收液中分离溴化物和碳酸盐的新工艺及其相平衡

IF 7.8 2区环境科学与生态学

Process Safety and Environmental Protection Pub Date : 2025-07-18 DOI: 10.1016/j.psep.2025.107622

Kangrui Sun, Shaoyan Lu, Haihong Wu, Tao Wang, Wei Liu, Shujing Chai, Yuqi Wang, Qi Zhang

{"title":"A novel separation process for the bromide and carbonate from the air blow-out alkali absorbed liquid and its phase equilibrium","authors":"Kangrui Sun, Shaoyan Lu, Haihong Wu, Tao Wang, Wei Liu, Shujing Chai, Yuqi Wang, Qi Zhang","doi":"10.1016/j.psep.2025.107622","DOIUrl":"https://doi.org/10.1016/j.psep.2025.107622","url":null,"abstract":"Efficiently separating bromide/carbonate-enriched liquids obtained from air-blown alkali absorption systems through sustainable and clean methods remains a persistent engineering challenge. In this paper, to realize the utilization of the absorbed liquid, the equilibria data about the absorbed liquid of the ternary system (NaBr - Na<ce:inf loc=\"post\">2</ce:inf>CO<ce:inf loc=\"post\">3</ce:inf> - H<ce:inf loc=\"post\">2</ce:inf>O) at 328.15, 338.15 and 368.15<ce:hsp sp=\"0.25\"></ce:hsp>K and 101.325 kPa were determined with the isothermal dissolution equilibrium and the wet-residue solid phase method. Also, the phase diagrams of the ternary system (NaBr - Na<ce:inf loc=\"post\">2</ce:inf>CO<ce:inf loc=\"post\">3</ce:inf> - H<ce:inf loc=\"post\">2</ce:inf>O) at various temperatures were compared, and the variation rules involving the crystallization region and solubility were analyzed. Furthermore, this work proposes a novel method of separation and recovering Na<ce:inf loc=\"post\">2</ce:inf>CO<ce:inf loc=\"post\">3</ce:inf>·H<ce:inf loc=\"post\">2</ce:inf>O and NaBr·2H<ce:inf loc=\"post\">2</ce:inf>O with high purity from the absorbed liquid. The separation route has been proven to be feasible through the separation experiment of one-way process, and the product Na<ce:inf loc=\"post\">2</ce:inf>CO<ce:inf loc=\"post\">3</ce:inf>·H<ce:inf loc=\"post\">2</ce:inf>O and NaBr·2H<ce:inf loc=\"post\">2</ce:inf>O with purity of 99.10% and 99.50% have been obtained, where the recovery rate of Na<ce:inf loc=\"post\">2</ce:inf>CO<ce:inf loc=\"post\">3</ce:inf> and NaBr are 100% finally. Moreover, the energy consumption and economic viability of the proposed separation process are analyzed and provided. The novel separation process plays a vital role in the utilization of the absorbed liquid and can be applied to wastewater treatment containing sodium bromide and sodium carbonate.","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"14 1","pages":""},"PeriodicalIF":7.8,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0