Journal of The Energy Institute最新文献_第10页

Tailoring active lattice oxygen in CeO2-Based oxygen carriers for enhanced chemical looping dry reforming of methane

IF 5.6 2区工程技术

Journal of The Energy Institute Pub Date : 2025-01-23 DOI: 10.1016/j.joei.2025.102014

Yanhui Long , Liboting Gao , Na Yang , Ang Cao , Yilin Zhang , Wee-Liat Ong , Xiaodong Li , Xin Tu , Hao Zhang , Jianhua Yan

{"title":"Tailoring active lattice oxygen in CeO2-Based oxygen carriers for enhanced chemical looping dry reforming of methane","authors":"Yanhui Long , Liboting Gao , Na Yang , Ang Cao , Yilin Zhang , Wee-Liat Ong , Xiaodong Li , Xin Tu , Hao Zhang , Jianhua Yan","doi":"10.1016/j.joei.2025.102014","DOIUrl":"10.1016/j.joei.2025.102014","url":null,"abstract":"<div><div>In this work, we highlight the significance of tailoring lattice oxygen activity through controlled morphologies of CeO<sub>2</sub>-based oxygen carriers for achieving enhanced performance in chemical looping dry reforming of methane (CL-DRM). By combining physical-chemical characterizations (Raman and X-ray photoelectron spectroscoy) and density functional theory (DFT) calculations, we demonstrate that the bulk oxygen mobility, surface oxygen reactivity, and methane activation ability strongly depend on the morphology of CeO<sub>2</sub>. Notably, Pd/CeO<sub>2</sub>-Rod (Pd/CeO<sub>2</sub>-R), which has a unique (110) crystal surface, had the highest CH<sub>4</sub> conversion (66 %) and exceptional syngas yields ∼1.7 and 3 times greater than those of Pd/CeO<sub>2</sub>-Cube (Pd/CeO<sub>2</sub>-C) and Pd/CeO<sub>2</sub>-Octahedron (Pd/CeO<sub>2</sub>-O), respectively, while maintaining high CO yields during the CO<sub>2</sub> splitting step at 550 °C. These results underscore the feasibility and importance of tailoring the active lattice oxygen in Ce-based oxygen carriers for optimizing chemical looping processes through morphology modulation.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":"120 ","pages":"Article 102014"},"PeriodicalIF":5.6,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143437378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A generalized neural network for accurate estimation of soot temperature in laminar flames using a single RGB image

IF 5.6 2区工程技术

Journal of The Energy Institute Pub Date : 2025-01-23 DOI: 10.1016/j.joei.2025.102001

J. Portilla , J.J. Cruz , F. Escudero , R. Demarco , A. Fuentes , G. Carvajal

{"title":"A generalized neural network for accurate estimation of soot temperature in laminar flames using a single RGB image","authors":"J. Portilla , J.J. Cruz , F. Escudero , R. Demarco , A. Fuentes , G. Carvajal","doi":"10.1016/j.joei.2025.102001","DOIUrl":"10.1016/j.joei.2025.102001","url":null,"abstract":"<div><div>Soot temperature is a relevant factor related to the efficiency of combustion processes. Artificial neural networks have started to be used to estimate soot temperature distributions in laminar flames by analyzing images captured with optical setup of varying complexity. These networks often achieve greater accuracy and precision than traditional methods that rely on explicit theoretical models and numerical approaches. However, most prior studies validate the neural networks on limited subsets of canonical flames, which may lead to overfitting. For these methods to be practically useful, a trained network should generalize across diverse flame conditions without needing retraining.</div><div>This paper introduces the use of Attention U-Net models for soot pyrometry, utilizing only broadband flame emission images captured with a RGB camera. Simulation results demonstrate that the Attention U-Net achieves more accurate temperature estimations compared to previously reported learning-based methods. Additionally, we evaluate the model’s generalization capabilities, showing that a network trained on simulated data maintains high accuracy when applied to images of laminar flames across various experimental conditions with errors below 30 K. Tests with experimental data further reveal that the proposed approach, using a single , produces temperature estimates comparable to those obtained through well-established techniques that require more complex equipment and processing. Moreover, the network exhibits strong robustness to measurement noise and remains effective in flames with low soot loading, where traditional reference techniques suffer from reduced signal-to-noise ratios and diminished accuracy.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":"119 ","pages":"Article 102001"},"PeriodicalIF":5.6,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143136143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Production of ultra-microporous carbon from mottled bamboo pyrolysis: Multiple roles of low-dose additive CuCl2 on the product characteristics

IF 5.6 2区工程技术

Journal of The Energy Institute Pub Date : 2025-01-23 DOI: 10.1016/j.joei.2025.102015

Rui Fang , Sunwen Xia , Chen Zhang , Yalin Wang , Yihui Tao , Dong Wang , Hairui Yang , Haiping Yang

{"title":"Production of ultra-microporous carbon from mottled bamboo pyrolysis: Multiple roles of low-dose additive CuCl2 on the product characteristics","authors":"Rui Fang , Sunwen Xia , Chen Zhang , Yalin Wang , Yihui Tao , Dong Wang , Hairui Yang , Haiping Yang","doi":"10.1016/j.joei.2025.102015","DOIUrl":"10.1016/j.joei.2025.102015","url":null,"abstract":"<div><div>Copper (II) chloride (CuCl<sub>2</sub>) serve as a novel low-dose activator to produce ultra-microporous carbon during biomass catalytic pyrolysis. To understand the multiple roles of CuCl<sub>2</sub>, a pyrolysis experiment was conducted in a fixed bed reactor at temperatures ranging from 400 to 800 °C, using CuCl<sub>2</sub> and mottled bamboo (MB) in a mass ratio of 0.1:1. At low temperatures of 400 °C, CuCl<sub>2</sub> promoted rapid precipitation of volatiles and deoxidation of fixed carbon, resulting in a decrease of the O/C ratio of carbon from 0.231 to 0.135. At high temperatures of 600∼700 °C, the bio-oil rich in ketones (83 %) and carbon material abundant in ultramicropores (72 %) were produced simultaneously. The pore expansion mechanisms were clearly analyzed: CuCl<sub>2</sub> promoted the expansion of mesopores, micropores (1–2 nm) and ultra-micropores (0.54 nm) through templating, dehydration at 400 °C, and etching carbon skeletons at 500–800 °C, respectively.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":"119 ","pages":"Article 102015"},"PeriodicalIF":5.6,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143136153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced bio-oil production from Co-pyrolysis of cotton seed and polystyrene waste; fuel upgrading by metal-doped activated carbon catalysts

IF 5.6 2区工程技术

Journal of The Energy Institute Pub Date : 2025-01-22 DOI: 10.1016/j.joei.2025.102007

Mahshid Vaghar Mousavi, Behnam Rezvani, Ahmad Hallajisani

{"title":"Enhanced bio-oil production from Co-pyrolysis of cotton seed and polystyrene waste; fuel upgrading by metal-doped activated carbon catalysts","authors":"Mahshid Vaghar Mousavi, Behnam Rezvani, Ahmad Hallajisani","doi":"10.1016/j.joei.2025.102007","DOIUrl":"10.1016/j.joei.2025.102007","url":null,"abstract":"<div><div>There is an increasing concern about fossil fuel depletion and waste management. Therefore, sustainable conversion of waste and biomass to fuel is crucial. This research delves into the conversion of waste material including cotton seed (CS) biomass and polystyrene (PS) waste into valuable bio-oil through co-pyrolysis. The effects of temperature and residence time on bio-oil production yield were investigated. The optimal conditions occurred at 550 °C and 30 min, leading to a bio-oil, gas, and biochar yield of 58 %, 16 %, and 26 % from CS, respectively. Introducing PS in a 3:7 ratio had the greatest positive effect on bio-oil production efficiency compared to the calculated case. Gas chromatography-mass spectrometry (GC–MS) investigation revealed substantial improvement in hydrocarbons and minimization in the oxygen-rich products by blending the waste plastics at 50 wt%. The study extends to the catalytic upgrading of liquid fuel and aromatic chemicals using activated carbon (AC) catalysts doped with metals like Co, Cu, Fe, and Zn. Analytical methods, such as inductively coupled plasma-optical emission spectrometry (ICP-OES), Brunauer-Emmett-Teller (BET), CHNS, X-ray diffraction spectroscopy (XRD), field emission scanning electron microscope (FESEM), and energy-dispersive X-ray spectroscopy (EDS) characterize the catalysts, revealing varied impacts on fuel composition and performance. Notably, Fe-Zn/AC and Fe-Co/AC catalysts facilitate bio-oil deoxygenation via decarboxylation and decarbonylation. In contrast, AC, Fe-Cu/AC and Fe/AC catalysts indicate a predominance of hydrodeoxygenation. Enhanced monocyclic aromatic compound yields in bio-oil are observed with metal-modified AC catalysts, marking a significant advancement over unmodified AC.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":"119 ","pages":"Article 102007"},"PeriodicalIF":5.6,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143136147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Insights into the role of fuel structure and blending in soot formation for C1–C4 hydrocarbon flames

IF 5.6 2区工程技术

Journal of The Energy Institute Pub Date : 2025-01-22 DOI: 10.1016/j.joei.2025.102011

Beibei Yan , Sensen Lu , Shengquan Zhou , Guanyi Chen , Xiaochao Zhu

{"title":"Insights into the role of fuel structure and blending in soot formation for C1–C4 hydrocarbon flames","authors":"Beibei Yan , Sensen Lu , Shengquan Zhou , Guanyi Chen , Xiaochao Zhu","doi":"10.1016/j.joei.2025.102011","DOIUrl":"10.1016/j.joei.2025.102011","url":null,"abstract":"<div><div>Soot, a carbonaceous particle formed during the incomplete combustion of hydrocarbon fuels, not only reduces combustion efficiency but also poses significant risks to human health and the atmospheric environment. The formation of soot is a complex process involving physico-chemical transformations, and variations in fuel structure and fuel blending significantly impact soot production. Therefore, understanding the mechanisms of soot formation in C<sub>1</sub>–C<sub>4</sub> hydrocarbon fuel flames and the associated influencing factors is crucial for effective soot emission control. This paper systematically reviews the primary mechanisms of soot formation in hydrocarbon flames. It further summarizes the research progress on soot formation during the combustion of C<sub>1</sub>–C<sub>4</sub> hydrocarbons, with particular focus on how changes in fuel structure and blending affect soot formation. The influence of carbon chain length and saturation on soot formation is discussed, as well as the synergistic effects of blended fuel combustion. Lastly, the impact of non-hydrocarbon additives (e.g., CO, NH<sub>3</sub>/H<sub>2</sub>, CO<sub>2</sub>/H<sub>2</sub>O) on soot formation is examined, highlighting the chemical coupling between hydrocarbon and non-hydrocarbon components. These findings provide valuable insights for understanding soot formation, optimizing fuel properties, mitigating soot emissions, and advancing cleaner combustion technologies.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":"119 ","pages":"Article 102011"},"PeriodicalIF":5.6,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143096998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual-fuel dual-direct injection: An efficient and clean combustion technology for diesel engines

IF 5.6 2区工程技术

Journal of The Energy Institute Pub Date : 2025-01-20 DOI: 10.1016/j.joei.2025.102006

Tao Li , Pengyun Zhao , Haibin He , Chunguang Wang , Haitao Zhang , Zhanming Chen , Hao Chen

{"title":"Dual-fuel dual-direct injection: An efficient and clean combustion technology for diesel engines","authors":"Tao Li , Pengyun Zhao , Haibin He , Chunguang Wang , Haitao Zhang , Zhanming Chen , Hao Chen","doi":"10.1016/j.joei.2025.102006","DOIUrl":"10.1016/j.joei.2025.102006","url":null,"abstract":"<div><div>The reduction of pollutant emissions from diesel engines and achievement of a carbon-neutral transportation sector requires the improvement of traditional diesel engine combustion. Dual-fuel combustion modes have been introduced to promote the application of renewable fuels in diesel engines accordingly. However, traditional dual-fuel combustion is limited by poor stability, low renewable fuel substitution rate, narrow operating conditions, and high pollutant emissions. Dual-fuel direct injection (DFDI) has been proposed to address these problems. This paper critically reviews the latest research on and compares the advantages of DFDI combustion with those of other combustion modes and evaluates the performance, combustion, and emissions characteristics of diesel–gasoline, diesel–natural gas, diesel–methanol, diesel–ammonia, and diesel–hydrogen DFDI engines. When using DFDI, the fuel injection strategy is more flexible, the concentration and activity distributions of the different fuels in the cylinder can be effectively controlled, and there is considerable potential for combustion optimization. Furthermore, the DFDI engine exhibits a higher power output, better thermal efficiency, and significantly improved combustion stability compared to the conventional diesel engine. These advantages broaden the engine working conditions, increase the replacement rate of diesel with renewable fuels, and reduce the emissions of carbon monoxide, hydrocarbons, nitrogen oxides, particulate matter, soot, and other pollutants.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":"119 ","pages":"Article 102006"},"PeriodicalIF":5.6,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143135977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Production of green phenol by microwave-assisted catalytic pyrolysis of epoxy-based carbon fiber reinforced plastic from wind turbine blades

IF 5.6 2区工程技术

Journal of The Energy Institute Pub Date : 2025-01-20 DOI: 10.1016/j.joei.2025.102005

Yong Yao , Yang Cao , Mumin Rao , Jialiang Yang , Yuanzhong Zhang , Jing Gu , Jingkun Han

{"title":"Production of green phenol by microwave-assisted catalytic pyrolysis of epoxy-based carbon fiber reinforced plastic from wind turbine blades","authors":"Yong Yao , Yang Cao , Mumin Rao , Jialiang Yang , Yuanzhong Zhang , Jing Gu , Jingkun Han","doi":"10.1016/j.joei.2025.102005","DOIUrl":"10.1016/j.joei.2025.102005","url":null,"abstract":"<div><div>Recycling the waste wind turbine blades (WWTBs) is one of the key issues for the sustainable development of wind energy. Microwave-assisted catalytic pyrolysis offers the potential to obtain valuable products from the WWTBs. In this study, epoxy-based carbon fiber reinforced plastic (CFRP) from wind turbine blades was performed to microwave-assisted catalytic pyrolysis for phenol production. Four zeolite catalysts (ZSM-5, β30, MOR, and MCM-41) were characterized and used for pyrolysis. The solid, liquid, and gaseous products were collected respectively. The compositions of the condensed tar and non-condensed gas were carefully analyzed by GC-MS and GC, respectively. The performance of the catalysts was compared and the effects of microwave power and reactor temperature on the product characteristics were discussed. The results indicate that the conversion of the phenol precursors, including diphenol A, 4-isopropenyl phenol, 4-isopropyl phenol, and 4-allylphenol, to phenol is promoted by the catalysts. β30 shows the best performance for phenol production among the catalysts, benefiting from its high specific surface area and acidity. Increasing the microwave power from 500 W to 800 W favors the initial pyrolysis of epoxy resin, thus improving the phenol yield. 600 W is preferred due to excessively increasing microwave power has a limited effect on promoting phenol generation and has the potential to damage the carbon fibers. Increasing the temperature from 350 °C to 650 °C promotes the cracking of resin and intermediate products. Pyrolysis at 450 °C is preferred due to the highest phenol yield. With the suggested condition (β30, 600 W, and 450 °C), the phenol yield is ∼36.28 % in the tar. The findings of this study provide fundamental information and guidance for the industrial application of directed synthesis of phenol from WWTBs.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":"119 ","pages":"Article 102005"},"PeriodicalIF":5.6,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143136149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of addition of the scrap tires and waste plastics pyrolysis oil residue on the quality of the feed for hydrocracking and FCC

IF 5.6 2区工程技术

Journal of The Energy Institute Pub Date : 2025-01-19 DOI: 10.1016/j.joei.2025.102004

H. Kittel , M. Dragoun , D. Schlehöfer , A. Vráblík

{"title":"Effect of addition of the scrap tires and waste plastics pyrolysis oil residue on the quality of the feed for hydrocracking and FCC","authors":"H. Kittel , M. Dragoun , D. Schlehöfer , A. Vráblík","doi":"10.1016/j.joei.2025.102004","DOIUrl":"10.1016/j.joei.2025.102004","url":null,"abstract":"<div><div>Pyrolysis oil residue (360 °C+) from scrap tires (yield 37 wt%) and waste plastics (yield 10 wt%) has been considered for coprocessing with vacuum distillates by hydrocracking and with atmospheric residue by FCC. The effect of adding of 10 wt% pyrolysis oils residue on the quality of the feedstock of both processes was evaluated. The general properties, fractional, chemical, and elemental composition of pure feedstocks and their mixtures were analyzed. The homogeneity of all feedstocks and compatibility of mixed samples were verified by spot test and observation under the optical microscope. In the coprocessing of scrap tires pyrolysis oil residue, it will be necessary to pay attention to the high acid and iodine numbers, aromatics, iron and nickel content, and the tendency to carbonize, while for the waste plastics pyrolysis oil residue, it will be necessary to pay attention to the high nitrogen and chlorine content. Coprocessed feedstocks were compatible. With FCC technology, both pyrolysis oil residues can be coprocessed; for hydrocracking technology, the waste plastics pyrolysis oil residue will by more convenient. The results will be used to scale up the coprocessing of pyrolysis oil residues.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":"119 ","pages":"Article 102004"},"PeriodicalIF":5.6,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143340103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the two-stage co-pyrolysis characteristics of Marine waste poypropylene and Enteromorpha

IF 5.6 2区工程技术

Journal of The Energy Institute Pub Date : 2025-01-18 DOI: 10.1016/j.joei.2025.102000

Liqiang Zhang , Ningmin Zhu , Yuxiang Liu , Jinfeng Yuan , Kai Chen , Honglei Shi , Riyi Lin

{"title":"Study on the two-stage co-pyrolysis characteristics of Marine waste poypropylene and Enteromorpha","authors":"Liqiang Zhang , Ningmin Zhu , Yuxiang Liu , Jinfeng Yuan , Kai Chen , Honglei Shi , Riyi Lin","doi":"10.1016/j.joei.2025.102000","DOIUrl":"10.1016/j.joei.2025.102000","url":null,"abstract":"<div><div>A thermogravimetric analyzer and a fixed-bed pyrolysis reactor were utilized to investigate the two-stage co-pyrolysis characteristics of mixed waste polypropylene (PP) and enteromorpha (EP). The thermogravimetric characteristics, kinetics, and synergistic effects were analyzed. The influence of temperature on the product distribution of the two-stage co-pyrolysis of PP and EP was elucidated. The results indicated a significant synergistic effect between EP and PP at 200–500 °C, with the pyrolysis reaction mechanism identified as a phase transition boundary reaction. Compared to the single-stage co-pyrolysis, the two-stage co-pyrolysis increased the yield of pyrolysis oil. As the first-stage pyrolysis temperature increased, the total oil yield of two-stage co-pyrolysis initially rose and then declined, peaking at 40.25 % at 550 °C. The aromatic content of the oil from the second stage was significantly higher than that from the first stage and the single-stage co-pyrolysis. Increasing the first-stage pyrolysis temperature enhanced the aromatic content while reduced the oxygen and nitrogen compound contents. Additionally, increasing the first-stage pyrolysis temperature promoted the cracking of volatiles, resulting in more gas products, with a notable increase in CH<sub>4</sub> and H<sub>2</sub> content. The char yield decreased, while the degree of aromatization and densification of the char was enhanced by the higher first-stage pyrolysis temperature.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":"119 ","pages":"Article 102000"},"PeriodicalIF":5.6,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143136102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental and simulation study of flue gas desulfurization using the limestone-gypsum wet method under an oxygen-enriched combustion atmosphere

IF 5.6 2区工程技术

Journal of The Energy Institute Pub Date : 2025-01-17 DOI: 10.1016/j.joei.2025.101999

Haibo Wu , Yu Wang , Yi Liu , Shuai Guo , Zhaoping Zhong

{"title":"Experimental and simulation study of flue gas desulfurization using the limestone-gypsum wet method under an oxygen-enriched combustion atmosphere","authors":"Haibo Wu , Yu Wang , Yi Liu , Shuai Guo , Zhaoping Zhong","doi":"10.1016/j.joei.2025.101999","DOIUrl":"10.1016/j.joei.2025.101999","url":null,"abstract":"<div><div>This study aims to explore the optimization of wet flue gas desulfurization (FGD) under oxy-fuel combustion conditions. To this end, an experimental platform for wet desulfurization using limestone-gypsum in oxy-fuel combustion flue gas was constructed. The effects of gas velocity, liquid-to-gas ratio, slurry pH, and inlet SO<sub>2</sub> concentration on desulfurization efficiency were investigated. Experimental results, along with numerical simulations using Aspen Plus, indicated that as gas velocity and inlet SO<sub>2</sub> concentration increased, the desulfurization efficiency decreased. In contrast, an increase in the liquid-to-gas ratio and slurry pH helped improve the desulfurization efficiency, particularly in high CO<sub>2</sub> (60–90 %) atmospheres, where the impact of pH on desulfurization efficiency was more significant. Further analysis showed that CO<sub>2</sub> concentration and pH had no significant effect on the particle size or morphology of gypsum crystals. This research provides a theoretical foundation for wet desulfurization technology under oxy-fuel combustion conditions and offers practical guidance for its application.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":"119 ","pages":"Article 101999"},"PeriodicalIF":5.6,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143136146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0