Process Safety and Environmental Protection最新文献_第10页

Relic DNA shielding by humic acid: Sequential removal enhances viable microbial detection in ballast sediments 腐植酸屏蔽遗迹DNA：顺序去除可提高船舶沉积物中活菌的检测

IF 7.9 2区环境科学与生态学

Process Safety and Environmental Protection Pub Date : 2026-07-15 Epub Date: 2026-07-03 DOI: 10.1016/j.psep.2026.109237

Haoze He, Zhaozhao Xue, Yangchun Han, Zhenghua Xu, Wen Tian, Yuan Wang, Pei Yu, Wei Zhang

{"title":"Relic DNA shielding by humic acid: Sequential removal enhances viable microbial detection in ballast sediments","authors":"Haoze He, Zhaozhao Xue, Yangchun Han, Zhenghua Xu, Wen Tian, Yuan Wang, Pei Yu, Wei Zhang","doi":"10.1016/j.psep.2026.109237","DOIUrl":"10.1016/j.psep.2026.109237","url":null,"abstract":"<div><div>Ballast water sediments pose a high risk for introducing invasive microbes, but accurate viable microbial detection is severely disrupted by dual interference from humic acid and relic DNA. Humic acid forms stable complexes with relic DNA, shielding it from PMA cross-linking and strongly inhibiting PCR amplification. However, the interaction mechanism and optimal removal sequence remain unclear. This study combined PMA-qPCR, 16S rRNA sequencing, and absolute quantitative metagenomics to compare two sequential strategies: removing humic acid before relic DNA (Strategy A: Pre-treatment) and the reverse order (Strategy B: Post-treatment). Humic acid (436.58 g/kg) was identified as the dominant inhibitor. Pre-treatment eliminated the shielding effect, improving relic DNA removal by 92% and qPCR efficiency by 206.7%, and producing more authentic community and functional profiles. In contrast, Post-treatment caused severe DNA loss and artificial functional diversity. The removal order, governed by humic acid adsorption, directly determines detection fidelity. This work establishes a standardized protocol for reliable viable microbial detection in complex sediments, supporting global shipping biosecurity.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"215 ","pages":"Article 109237"},"PeriodicalIF":7.9,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148384517","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

Qc-5-CuxCoy MOFs for boosting electrochemical nitrate reduction to ammonia in neutral electrolyte Qc-5-CuxCoy MOFs促进中性电解质中硝酸盐电化学还原为氨

IF 7.9 2区环境科学与生态学

Process Safety and Environmental Protection Pub Date : 2026-07-15 Epub Date: 2026-06-10 DOI: 10.1016/j.psep.2026.109110

Min Wang, Wenyu Li, Huiting Qiao, Yadan Yu, Fanghua Ning, Yuyu Liu, Jinli Qiao

{"title":"Qc-5-CuxCoy MOFs for boosting electrochemical nitrate reduction to ammonia in neutral electrolyte","authors":"Min Wang, Wenyu Li, Huiting Qiao, Yadan Yu, Fanghua Ning, Yuyu Liu, Jinli Qiao","doi":"10.1016/j.psep.2026.109110","DOIUrl":"10.1016/j.psep.2026.109110","url":null,"abstract":"<div><div>The electrochemical reduction of nitrate (NO<sub>3</sub>RR) is not only an environmentally friendly approach to remove nitrate pollution from wastewater, but also enables the production of ammonia (NH<sub>3</sub>), an important chemical raw material and a promising liquid hydrogen storage material. Metal-organic frameworks (MOFs) are ideal for constructing electrochemical catalysts, however, their complex multi-electron transfer reaction pathways and intermediate-dominated competitive side reactions pose a big challenge for the NO<sub>3</sub>RR-to-NH<sub>3</sub> conversion. Herein, we report an Qc-5-Cu<sub>x</sub>Co<sub>y</sub> MOFs material synthesized via a facile solvothermal method for boosting ammonia synthesis. With unique bimetallic MOFs construction, the Qc-5-CuCo catalyst exhibits excellent electrocatalytic activity for NO<sub>3</sub>RR, achieving a faradaic efficiency (<span><math><msub><mrow><mi>FE</mi></mrow><mrow><mi>N</mi><msub><mrow><mi>H</mi></mrow><mrow><mn>3</mn></mrow></msub></mrow></msub></math></span>) of 96.4% at <img>0.6 V<sub>RHE</sub> and an NH<sub>3</sub> production rate of 355 µmol h⁻¹cm⁻² (0.3 M Na<sub>2</sub>SO<sub>4</sub>, 0.1 M NaNO<sub>3</sub>), while affords a long-term stability of 168 h over 90%<span><math><mrow><mspace></mspace><msub><mrow><mi>FE</mi></mrow><mrow><mi>N</mi><msub><mrow><mi>H</mi></mrow><mrow><mn>3</mn></mrow></msub></mrow></msub></mrow></math></span>. Moreover, at a <span><math><msubsup><mrow><mi>NO</mi></mrow><mrow><mn>3</mn></mrow><mrow><mo>−</mo></mrow></msubsup></math></span> concentration of 1 M, this catalyst delivers a 99.5% <span><math><msub><mrow><mi>FE</mi></mrow><mrow><mi>N</mi><msub><mrow><mi>H</mi></mrow><mrow><mn>3</mn></mrow></msub></mrow></msub></math></span> and an NH<sub>3</sub> production rate of 1252 µmol h⁻¹ cm⁻². Meanwhile, it shows a broader electrode potential window, demonstrating great applicability for industrial relevance.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"215 ","pages":"Article 109110"},"PeriodicalIF":7.9,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148528609","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

Membrane separation technology in hydrometallurgy: Recent advances, innovative applications, and sustainable resource recovery 湿法冶金膜分离技术：最新进展、创新应用及可持续资源回收

IF 7.9 2区环境科学与生态学

Process Safety and Environmental Protection Pub Date : 2026-07-15 Epub Date: 2026-06-16 DOI: 10.1016/j.psep.2026.109162

Ran An, Baozhong Ma, Zhihe Cao, Yubo Liu, Xiang Li, Yongqiang Chen, Chengyan Wang

{"title":"Membrane separation technology in hydrometallurgy: Recent advances, innovative applications, and sustainable resource recovery","authors":"Ran An, Baozhong Ma, Zhihe Cao, Yubo Liu, Xiang Li, Yongqiang Chen, Chengyan Wang","doi":"10.1016/j.psep.2026.109162","DOIUrl":"10.1016/j.psep.2026.109162","url":null,"abstract":"<div><div>Hydrometallurgy plays a critical role in the recovery of valuable metals from low-grade ores and secondary resources. However, conventional separation technologies often involve high reagent consumption, substantial waste generation, and complex multi-stage processing. Membrane separation technology (MST) has attracted increasing attention in hydrometallurgical applications owing to its molecular selectivity, low chemical consumption, and modular process design. This review critically examines the application of pressure-driven, thermally driven, and concentration-driven membrane processes across major hydrometallurgical stages, including solid–liquid separation, solution purification, metal recovery, concentration, and acid regeneration. Of particular interest are recent advances in the selective recovery of precious metals and rare earth elements using functionalized membranes, as well as the integration of hybrid membrane systems for simultaneous resource recovery and acid recycling. Beyond summarizing reported studies, the review evaluates fouling behaviour, membrane stability under corrosive conditions, scale-up barriers, and the current limitations of techno-economic and environmental assessments. The analysis indicates that although MST has demonstrated considerable potential in laboratory and pilot-scale studies, industrial implementation remains constrained by membrane durability, fouling control, limited long-term operational data, and the lack of standardized performance benchmarking. Future research should prioritize corrosion-resistant and antifouling membrane materials, pilot-scale validation using real process streams, standardized techno-economic evaluation frameworks, and life-cycle-based sustainability assessment to support broader industrial deployment.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"215 ","pages":"Article 109162"},"PeriodicalIF":7.9,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148289000","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

Valorization of rubber waste for the synthesis of an acidic heterogeneous catalyst for efficient palm fatty acid distillate esterification 橡胶废料的活化合成棕榈脂肪酸馏出物高效酯化酸性多相催化剂

IF 7.9 2区环境科学与生态学

Process Safety and Environmental Protection Pub Date : 2026-07-15 Epub Date: 2026-06-23 DOI: 10.1016/j.psep.2026.109195

Muhammad Aliyu, Junaid Ahmad, Chawalit Ngamcharussrivichai, Kamil Kayode Katibi, Syed Ahmar Ali Hashmi, Umer Rashid

{"title":"Valorization of rubber waste for the synthesis of an acidic heterogeneous catalyst for efficient palm fatty acid distillate esterification","authors":"Muhammad Aliyu, Junaid Ahmad, Chawalit Ngamcharussrivichai, Kamil Kayode Katibi, Syed Ahmar Ali Hashmi, Umer Rashid","doi":"10.1016/j.psep.2026.109195","DOIUrl":"10.1016/j.psep.2026.109195","url":null,"abstract":"<div><div>The rubber waste and palm fatty acid distillate (PFAD) are abundant industrial wastes that pose a substantial environmental challenge. In this study, a solid acid catalyst (ARW-SO₃H) is synthesized from rubber waste using a ZnCl<sub>2</sub> activation method and H₂SO₄ sulfonation for the efficient production of biodiesel from PFAD. The ARW-SO₃H exhibited high BET surface area (123.47 m²/g), strong acid density (8.25 mmol/g), and high sulfur content (12.83 wt%) as revealed by FTIR, TGA, BET, EDX, FESEM, NH₃-TPD, and Raman spectroscopy. The biodiesel yield was 98.9% at the optimized parameters (80°C, 3 h, 18:1 methanol: PFAD, 4 wt% catalyst loading). The catalyst maintained a biodiesel yield of over 60% after five consecutive cycles, while deactivation was reached due to a 78% loss of acid sites. The pseudo-first-order reaction was confirmed (R² = 0.999), and the activation energy was found to be 24.98 kJ/mol. Thermodynamic analysis showed an endothermic, non-spontaneous reaction that needed thermal energy to be added to the system. The biodiesel produced was found to be compliant with the ASTM D6751 specifications (flash point 162°C and cetane number 61). This work exemplifies a circular economy strategy by transforming two waste streams from the industry into a valuable energy source.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"215 ","pages":"Article 109195"},"PeriodicalIF":7.9,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148313242","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

Towards ultra-low sulfur dioxide emissions in copper industry: An integrated analysis based on full-process material-energy-pollution flows 铜工业二氧化硫超低排放：基于全过程物质-能源-污染流的综合分析

IF 7.9 2区环境科学与生态学

Process Safety and Environmental Protection Pub Date : 2026-07-15 Epub Date: 2026-06-25 DOI: 10.1016/j.psep.2026.109210

Na Li, Chengkang Gao, Zhenjiang Guo, Menghui Zhang

{"title":"Towards ultra-low sulfur dioxide emissions in copper industry: An integrated analysis based on full-process material-energy-pollution flows","authors":"Na Li, Chengkang Gao, Zhenjiang Guo, Menghui Zhang","doi":"10.1016/j.psep.2026.109210","DOIUrl":"10.1016/j.psep.2026.109210","url":null,"abstract":"<div><div>Copper, a foundational material for the global new energy industry's transformation, faces escalating demand that conflicts with sulfur dioxide (SO<sub>2</sub>) emissions during smelting processes. Traditional end-of-pipe treatment can no longer meet the dual requirements of ultra-low emissions and high-quality development, necessitating a shift towards full-process pollution control. By establishing an integrated framework of material-energy-pollution flow, this study reveals the interrelationships between sulfur, material, and energy flows in copper industry. Subsequently, sulfur migration patterns and SO<sub>2</sub> generation and emission characteristics across different processes is analyzed. Finally, the impact of variations in material and energy flows on SO<sub>2</sub> generation and emission is quantified. Results indicate that sulfur primarily originates from copper concentrate, pulverized coal, and slag concentrate, predominantly output in the forms of waste gas and sulfur products. The smelting process contributes 76.85% of SO<sub>2</sub> generation, representing the primary production stage, while the smelting and refining emerge as the dominant SO<sub>2</sub> emission stage, contributing 43.42% and 32.24% of the total emissions, respectively. Adjusting parameters like recycled copper ratios, optimizing matte grade, and selecting low-sulfur fuels can significantly influence SO<sub>2</sub> generation and emission, providing insights for a full-process emission reduction pathway encompassing source control, process optimization, and end-of-pipe treatment in copper industry.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"215 ","pages":"Article 109210"},"PeriodicalIF":7.9,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148357134","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

Deactivation mechanisms of spent V-Ti-based SCR catalysts and strategies for resource utilization: A systematic review 废钒钛基SCR催化剂失活机理及资源利用策略综述

IF 7.9 2区环境科学与生态学

Process Safety and Environmental Protection Pub Date : 2026-07-15 Epub Date: 2026-06-24 DOI: 10.1016/j.psep.2026.109200

Jinrong Ju, Shitong Cui, Zhengyu Liu, Wei Yang, Tao Long, Sha Deng

{"title":"Deactivation mechanisms of spent V-Ti-based SCR catalysts and strategies for resource utilization: A systematic review","authors":"Jinrong Ju, Shitong Cui, Zhengyu Liu, Wei Yang, Tao Long, Sha Deng","doi":"10.1016/j.psep.2026.109200","DOIUrl":"10.1016/j.psep.2026.109200","url":null,"abstract":"<div><div>V<sub>2</sub>O<sub>5</sub>-WO<sub>3</sub>/TiO<sub>2</sub>-based selective catalytic reduction (SCR) catalysts are widely used for the removal of nitrogen oxides (NO<sub>x</sub>) from industrial flue gases, but they gradually deactivate under complex operating conditions. In China, spent SCR catalysts are classified as HW50 waste catalysts, i.e., the waste-catalyst category in the National Catalogue of Hazardous Wastes, requiring safe treatment and resource recovery. This review summarizes the life-cycle management of spent V<sub>2</sub>O<sub>5</sub>-WO<sub>3</sub>/TiO<sub>2</sub>-based SCR catalysts, with emphasis on deactivation mechanisms, regeneration strategies, and resource recovery approaches. Physical deactivation, including blockage, abrasion, sintering, and structural damage, and chemical deactivation caused by alkali/alkaline earth metals, heavy metals, and acid gases are discussed. Regeneration methods such as water/acid/alkali washing, organic solvent cleaning, thermal treatment, active component replenishment, and their combined processes are summarized in terms of their effectiveness and limitations. Resource utilization routes, including wet leaching, roasting-leaching, high-temperature smelting, and co-processing with other solid wastes, are critically reviewed. Finally, key challenges involving selective recovery, secondary pollution control, techno-economic and environmental assessment, and large-scale commercialization are highlighted. This review provides a state-oriented framework and practical guidance for the recycling and high-value utilization of spent V<sub>2</sub>O<sub>5</sub>-WO<sub>3</sub>/TiO<sub>2</sub>-based SCR catalysts.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"215 ","pages":"Article 109200"},"PeriodicalIF":7.9,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148357178","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

Co-firing of coal gangue and sewage sludge: Combustion characteristics and ash fusion behavior 煤矸石与污泥共烧：燃烧特性与灰熔融行为

IF 7.9 2区环境科学与生态学

Process Safety and Environmental Protection Pub Date : 2026-07-15 Epub Date: 2026-07-04 DOI: 10.1016/j.psep.2026.109232

Yasen Wu, Li Zhang, Zhengzhi Zhang, Weidong Zhang, Zhiping Lei, Zhanku Li, Shibiao Ren, Zhicai Wang, Hengfu Shui, Jingchong Yan

引用次数: 0

Free chlorine and reactive chlorine species from Cl- in advanced oxidation processes for high salinity wastewater treatment: Formation mechanisms, influencing factors, selective oxidation, and byproduct control 高盐度废水深度氧化处理中游离氯和活性氯：形成机理、影响因素、选择性氧化和副产物控制

IF 7.9 2区环境科学与生态学

Process Safety and Environmental Protection Pub Date : 2026-07-15 Epub Date: 2026-06-15 DOI: 10.1016/j.psep.2026.109154

Hongbo Liu, Jiayu Hui, Wenhui Sun, Yuxuan Yao, Lijin Yao, Jiao Li, Yuchen Zhang, Xiang Yuan, Mingzhe Li, Wenhui An

{"title":"Free chlorine and reactive chlorine species from Cl- in advanced oxidation processes for high salinity wastewater treatment: Formation mechanisms, influencing factors, selective oxidation, and byproduct control","authors":"Hongbo Liu, Jiayu Hui, Wenhui Sun, Yuxuan Yao, Lijin Yao, Jiao Li, Yuchen Zhang, Xiang Yuan, Mingzhe Li, Wenhui An","doi":"10.1016/j.psep.2026.109154","DOIUrl":"10.1016/j.psep.2026.109154","url":null,"abstract":"<div><div>High-salinity industrial wastewater poses challenges for conventional treatment. Advanced oxidation processes (AOPs), building upon original active species, offer a matrix-adaptive approach by activating inherent chloride ions (Cl<sup>-</sup>) to generate free chlorine and reactive chlorine species (RCS). However, the complex interplay among matrix components, active species speciation, and pathways remains elusive, limiting predictive performance and byproduct control. This review summarizes current knowledge on free chlorine and RCS generation, transformation, and application in complex high-salinity wastewater. These species selectively target electron-rich pollutants, effectively degrading recalcitrant compounds even under high ionic strength. Notably, in ammonia-rich effluents, RCS-mediated oxidation achieves over 80% nitrogen gas selectivity. However, concerns remain regarding toxic chlorinated transformation products. Strategies such as H<sub>2</sub>O<sub>2</sub> addition, pH optimization, and activated carbon adsorption were reviewed to control byproduct formation. By elucidating the interplay between process configuration, water matrix effects, and RCS behavior, it advances the scientific foundation for developing sustainable, matrix-adaptive technologies. Future research should focus on catalyst and coupling system design for selective free chlorine and RCS generation, in-situ monitoring of transient species, byproduct control strategies, and techno-economic assessment under real-world conditions.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"215 ","pages":"Article 109154"},"PeriodicalIF":7.9,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148289114","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

NEOM as a scalable model for renewable urbanism: A review on techno-economic integration of solar, wind, and green hydrogen 新能源能源作为可再生城市主义的可扩展模式：太阳能、风能和绿色氢的技术经济整合综述

IF 7.9 2区环境科学与生态学

Process Safety and Environmental Protection Pub Date : 2026-07-15 Epub Date: 2026-06-12 DOI: 10.1016/j.psep.2026.109132

Theyab R. Alsenani, Sulman Shahzad

{"title":"NEOM as a scalable model for renewable urbanism: A review on techno-economic integration of solar, wind, and green hydrogen","authors":"Theyab R. Alsenani, Sulman Shahzad","doi":"10.1016/j.psep.2026.109132","DOIUrl":"10.1016/j.psep.2026.109132","url":null,"abstract":"<div><div>This study presents a comprehensive assessment of NEOM’s renewable energy framework as a pioneering model for zero-carbon urban development. Situated in a region with exceptional solar irradiance (>2200 kWh/m²/year) and consistent wind speeds (7–8.5 m/s), NEOM is uniquely positioned to harness large-scale solar and wind power. This research evaluates the technical and economic feasibility of deploying over 90 TWh/year of renewable electricity—enough to meet local demand and enable green hydrogen exports. A central contribution of this work is the integrated analysis of NEOM’s energy system, combining photovoltaic and wind generation with green hydrogen production (650 tonnes/day), smart grid infrastructure, and multi-layered energy storage. The study also addresses the sustainability of water use for electrolysis through renewable-powered desalination. In addition to system design, the work examines environmental and social dimensions, highlighting an expected annual offset of 7.8 million tonnes of CO₂ and the potential for over 150,000 jobs. Through detailed modeling and scenario analysis, this research offers critical insights into how large-scale renewable systems can be technically viable, economically competitive, and socially inclusive. NEOM is thus positioned as a replicable case for future cities aiming to achieve net-zero emissions in line with climate and development goals such as Saudi Vision 2030.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"215 ","pages":"Article 109132"},"PeriodicalIF":7.9,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148289142","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 dry-water extinguishant with perfluorohexanone/water-glass gel core and silica aerogel shell for Class B fires 干水灭火器，全氟己酮/水玻璃凝胶芯和硅胶气凝胶壳，用于B级火灾

IF 7.9 2区环境科学与生态学

Process Safety and Environmental Protection Pub Date : 2026-07-15 Epub Date: 2026-06-06 DOI: 10.1016/j.psep.2026.109109

Yanli Miao, Chenying Li, Xiao Tan, Jianjun Liu, Ling Sa, Gang Qiu

{"title":"A dry-water extinguishant with perfluorohexanone/water-glass gel core and silica aerogel shell for Class B fires","authors":"Yanli Miao, Chenying Li, Xiao Tan, Jianjun Liu, Ling Sa, Gang Qiu","doi":"10.1016/j.psep.2026.109109","DOIUrl":"10.1016/j.psep.2026.109109","url":null,"abstract":"<div><div>Utilizing a water-glass gel-based core with perfluorohexanone (PFH) and a hydrophobic silica aerogel powder shell, a number of dry-water (DW) core-shell fire extinguishing chemicals were developed. Small-scale pool-fire tests with n-octane as representative fuels were used to evaluate the suppression performance against Class B flammable liquid fires, and the formulations' physicochemical characteristics (morphology, micro-FTIR, TG–DSC, flowability, and bulk density) were assessed to determine their applicability. The DW formulations demonstrated improved resistance to reignition under the current conditions, more efficient post-extinguishment cooling and faster flame knockdown than a conventional ABC dry powder. The findings showed the best release pressure and PFH amount inside the gel center, highlighting the need to balance spray performance and particle integrity in liquid fuel fires. The aerogel shell kept the system stable and insulated at high heat, while tests showed a silica gel formed that helped to retain heat within the gel and PFH core. In short, PFH slows burning by inhibiting harmful chemical reactions and helps in several ways, such as cooling, covering fire with liquid, lowering vapor, and reducing oxygen, which leads to better fire control for oil-based fires. This shows gel/PFH-modified DW could be a clean and effective option for fighting such fires.</div></div>","PeriodicalId":20743,"journal":{"name":"Process Safety and Environmental Protection","volume":"215 ","pages":"Article 109109"},"PeriodicalIF":7.9,"publicationDate":"2026-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148289156","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