Journal of The Energy Institute最新文献

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Probing the influence of synthesized hierarchical ZSM-5 catalyst in ex-situ catalytic conversion of real-world plastic waste into aromatic rich liquid oil 探究合成分层 ZSM-5 催化剂在将现实世界中的塑料废弃物原位催化转化为富含芳香烃的液体油中的影响
IF 5.6 2区 工程技术
Journal of The Energy Institute Pub Date : 2024-10-03 DOI: 10.1016/j.joei.2024.101853
{"title":"Probing the influence of synthesized hierarchical ZSM-5 catalyst in ex-situ catalytic conversion of real-world plastic waste into aromatic rich liquid oil","authors":"","doi":"10.1016/j.joei.2024.101853","DOIUrl":"10.1016/j.joei.2024.101853","url":null,"abstract":"<div><div>Plastic waste management has become a vitally important environmental and economic concern for researchers and technologists worldwide. Currently, catalytic pyrolysis of plastic waste emerged as a promising plastic waste management technique, further aiding the full-scale development of an alternate innovation to convert plastic waste into fuel (liquid oil) energy. Lately, zeolites have been one of the most suitable and versatile catalysts in converting plastic waste into fuel grade hydrocarbons via catalytic pyrolysis. The present work exhibits an attempt to synthesize and study the performance of a hierarchical ZSM-5 in a fixed bed reactor to convert the real-world (LDPE, HDPE, PP and PS) plastic wastes into higher quality fuel grade liquid oil. The hierarchical ZSM-5 catalyst having both mesopores and micropores (dual porosity) in its framework is synthesized by using a single organic template i.e., 10 % tetra propylammonium hydroxide (TPAOH). The catalyst performance study displays remarkable selectivity and increase in the yield of the aromatic component in the liquid oil obtained from different plastic wastes. The results indicate that presence of hierarchical catalyst has exceptionally lowered the reaction temperature in the range of 400–430 °C and increased the liquid oil yield in comparison with that of the thermal pyrolysis. Also, the obtained liquid oils have comparable fuel properties with that of kerosene and diesel.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":null,"pages":null},"PeriodicalIF":5.6,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142422262","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
Enhancing biofuel production in hydrothermal liquefaction of cassava rhizome through alkaline catalyst application and water-soluble product recirculation 通过应用碱性催化剂和水溶性产品再循环,提高木薯根茎水热液化过程中的生物燃料产量
IF 5.6 2区 工程技术
Journal of The Energy Institute Pub Date : 2024-10-03 DOI: 10.1016/j.joei.2024.101848
{"title":"Enhancing biofuel production in hydrothermal liquefaction of cassava rhizome through alkaline catalyst application and water-soluble product recirculation","authors":"","doi":"10.1016/j.joei.2024.101848","DOIUrl":"10.1016/j.joei.2024.101848","url":null,"abstract":"<div><div>Hydrothermal liquefaction (HTL) possesses an outstanding biomass thermal conversion technology for producing biocrude oil (BO). Here, cassava rhizome (CR) was converted into BO via catalytic HTL using 1.0–10.0 wt% of K<sub>2</sub>CO<sub>3</sub> and Na<sub>2</sub>CO<sub>3</sub> with water-soluble product (WSP) recirculation at 275 °C for 15 min. The catalysts and WSP recirculation could enhance the BO fuel properties. The dominant BO yield of 38.00 and 34.80 wt% and HHV of 25.42 and 25.92 Mj/kg were derived using 4.0 wt% of K<sub>2</sub>CO<sub>3</sub> and Na<sub>2</sub>CO<sub>3</sub>, respectively. Chemical compositions of the BO were principally phenols and hydrocarbons, which can be further upgraded and fractionated into alternative biofuels. On the other hand, the mass yield and HHV of the hydrochar (HC) co-product were reduced by the alkaline catalysts, while being maintained by WSP recirculation. The HC fuel characterization elucidated that the HC can be used as an alternative to coal. Furthermore, WSP characterization determined that organic acids were the major composition of the WSP. Thus, WSP recirculation can enhance CR decomposition according to the proposed reaction mechanism. These results indicate that the alkaline application and WSP recirculation constitute a dominant method for enhancing biofuel production via HTL.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":null,"pages":null},"PeriodicalIF":5.6,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142422260","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 hydrothermal gradient extraction of hemicellulose by a flow-through reactor 利用流动反应器进行半纤维素水热梯度提取的研究
IF 5.6 2区 工程技术
Journal of The Energy Institute Pub Date : 2024-10-03 DOI: 10.1016/j.joei.2024.101855
{"title":"Study on the hydrothermal gradient extraction of hemicellulose by a flow-through reactor","authors":"","doi":"10.1016/j.joei.2024.101855","DOIUrl":"10.1016/j.joei.2024.101855","url":null,"abstract":"<div><div>The hydrothermal gradient extraction process based on the hemicellulose constituent units is important for obtaining high quality hemicellulose products. The hydrothermal extraction of sawdust hemicellulose was performed under both non-isothermal and isothermal operations using a flow-through reactor for investigating the extraction patterns. The results show that there were significant differences in the major forms of hemicellulose units at different extraction stages. For glucose, xylose, and galactose units, the selectivity of oligomeric form decreased gradually with increasing temperature, whereas it decreased and then increased under thermostatic operation. The selectivity of the mannose oligomeric form decreased and then increased in both operation modes, reaching a trough at 170 °C (96.81 %) and 60 min (55.21 %), respectively. The molecular weight of extracted hemicelluloses were mainly distributed below 70,000 Da, and gradually decreased with temperature, but increased with time. The results contribute to the quantitative and qualitative understanding of the hemicellulose gradient extraction process.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":null,"pages":null},"PeriodicalIF":5.6,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142422257","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
Optical test devices and methods for internal combustion engines and optical studies on spray combustion characteristics for three different alternative fuels: A review 内燃机的光学测试设备和方法,以及对三种不同替代燃料的喷雾燃烧特性的光学研究:综述
IF 5.6 2区 工程技术
Journal of The Energy Institute Pub Date : 2024-09-28 DOI: 10.1016/j.joei.2024.101845
{"title":"Optical test devices and methods for internal combustion engines and optical studies on spray combustion characteristics for three different alternative fuels: A review","authors":"","doi":"10.1016/j.joei.2024.101845","DOIUrl":"10.1016/j.joei.2024.101845","url":null,"abstract":"<div><div>Due to the increasingly stringent emission regulations and the rising call for energy saving and emission reduction, efficient and clean combustion in internal combustion engines have become a research priority. However, the in-cylinder spray combustion process is complex and variable due to a variety of factors. Spray combustion, as a key segment of combustion in internal combustion engines, plays a key role in the efficient and clean combustion of internal combustion engines. The optical test device can truly observe the spray combustion in the cylinder of an internal combustion engine by equipping with an optical window. This paper focuses on the study of internal combustion engine optics, and reviews the current major optical test devices, optical detection methods, and spray combustion characteristics of three different alternative fuels. Firstly, the paper reviews three commonly used optical test devices, namely, CVCB, RCM and optical engine, and their studies on laminar flame, ignition delay and flash spray. Subsequently, the paper summarizes the spray combustion characteristic parameters and nine commonly used optical test methods that are well suited to determine spray morphology, concentration field, velocity field, combustion characteristics and intermediate composition. Finally, the paper summarizes the spray combustion characteristics of three alternative fuels.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":null,"pages":null},"PeriodicalIF":5.6,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142357004","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 laminar combustion characteristics and the optimization of the coupling mechanism in a mixture of propanol and gasoline 丙醇与汽油混合物层流燃烧特性及耦合机制优化研究
IF 5.6 2区 工程技术
Journal of The Energy Institute Pub Date : 2024-09-27 DOI: 10.1016/j.joei.2024.101846
{"title":"Study on laminar combustion characteristics and the optimization of the coupling mechanism in a mixture of propanol and gasoline","authors":"","doi":"10.1016/j.joei.2024.101846","DOIUrl":"10.1016/j.joei.2024.101846","url":null,"abstract":"<div><div>When both isopropanol and n-propanol are incorporated, the utilization of propanol as a fuel substitute (or a gasoline additive) presents promising potential for enhancing the combustion efficiency and thermal performance in compact, turbocharged, direct-injection gasoline engines upon blending. However, the complexity of the laminar combustion behavior of propanol-blended gasoline has yet to be fully investigated, as current coupling mechanisms are insufficiently sophisticated to precisely mirror the complex experimental conditions.</div><div>This study establishes a testbed specifically designed for measuring laminar burning velocity (LBV) using the heat flux method. This setup is employed to measure the LBV of pure n-heptane and isooctane, as well as the LBV of the gasoline surrogate fuel TRF with two distinct blend ratios. Additionally, it measures the LBV of propanol and its blends with TRF. The research findings reveal that isooctane demonstrates a heightened sensitivity to fuel preheating temperature, whereas the toluene proportion in TRF fuels exerts the most pronounced influence on combustion behavior. At an equivalence ratio of 1.1, the LBV of n-propanol differs from that of its isomer, isopropanol, by 4.65 cm/s. Notably, the LBV exhibits a discernible upward trend, corresponding to the increasing proportion of toluene in the blended fuel. Furthermore, there is a pronounced distinction in LBV among the propanol isomers, with blended TRF occupying an intermediate position between pure propanol and TRF. After the enhancement of the mechanism based on experimental benchmarks of LBV, a rigorous validation process demonstrated a substantial improvement in the alignment between simulated outcomes and empirical LBV measurements.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":null,"pages":null},"PeriodicalIF":5.6,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142422263","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
Numerical analysis of the ignition and gas-phase flame evolution of pulverized coal based on online experimental diagnostics 基于在线实验诊断的煤粉着火和气相火焰演变的数值分析
IF 5.6 2区 工程技术
Journal of The Energy Institute Pub Date : 2024-09-27 DOI: 10.1016/j.joei.2024.101843
{"title":"Numerical analysis of the ignition and gas-phase flame evolution of pulverized coal based on online experimental diagnostics","authors":"","doi":"10.1016/j.joei.2024.101843","DOIUrl":"10.1016/j.joei.2024.101843","url":null,"abstract":"<div><div>A transient ignition model employing a reduced chemical mechanism was developed to investigate the ignition characteristics and the gas-phase flame evolution of pulverized coal particles. The chemical percolation devolatilization (CPD) model was chosen to simulate the devolatilization process, and its accuracy was validated using a high-temperature entrained-flow reactor. Additionally, a novel method was introduced to cross-validate the single-particle simulation results with real-time OH-PLIF experimental measurements of particle streams, particularly at a large particle spacing ratio. The ignition mode was determined using the ignition delay time and volatile burnout time. Results show that as the oxygen volume fraction increases from 5% to 50% at a temperature of 1800 K, the ignition mode transitions from homogeneous ignition (GI) to heterogeneous ignition (HI). Notably, the same ignition mode was observed regardless of whether GI was defined using gas-phase temperature or OH levels. In the homo-heterogeneous ignition mode, the gas-phase flame intensity, characterized by OH levels, increases rapidly, then decreases, and re-increases slightly. The sequence of gas-phase reactions initiates with volatile combustion, followed by the co-combustion of residual volatiles and newly generated CO, and culminates in the combustion of CO itself. Online experimental findings confirmed that CO originates from char oxidation. Throughout this process, the gas-phase flame front extends outward until the volatiles are consumed.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":null,"pages":null},"PeriodicalIF":5.6,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142422258","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 K-modified Ca-based dual-functional materials for carbon capture and in-situ methane dry reforming 用于碳捕获和原位甲烷干重整的 K 改性 Ca 基双功能材料研究
IF 5.6 2区 工程技术
Journal of The Energy Institute Pub Date : 2024-09-27 DOI: 10.1016/j.joei.2024.101847
{"title":"Study on K-modified Ca-based dual-functional materials for carbon capture and in-situ methane dry reforming","authors":"","doi":"10.1016/j.joei.2024.101847","DOIUrl":"10.1016/j.joei.2024.101847","url":null,"abstract":"<div><div>Integrated carbon capture and in-situ methane dry reforming (ICCU-DRM) is a promising technology for chemical looping transformation, this process involves the sequential switching of feedstocks within a single reactor, allowing CO<sub>2</sub> capture to occur before methane dry reforming without direct CO<sub>2</sub>-CH<sub>4</sub> contact. However, a significant challenge in the ICCU-DRM process is the disparity between the optimal temperatures required for carbon capture and dry reforming, with the latter necessitating considerably higher temperatures. This could lead to substantial CO<sub>2</sub> losses when the reaction temperature is elevated to the optimal level for dry reforming. To address this issue and improve CO<sub>2</sub> conversion efficiency, this study explores K doping in synthesizing a dual-functional material, NiCa<sub>1.6</sub>K<sub>0.4</sub>@Al<sub>2</sub>O<sub>3</sub>, through extrusion-spheronization. The synthesized material exhibits a stable pore structure and a large internal surface area, crucial for enhancing CO<sub>2</sub> capture. The optimum temperature for DRM is around 800 °C. Notably, the formation of K<sub>2</sub>Ca(CO<sub>3</sub>)<sub>2</sub> during the calcination of NiCa<sub>1.6</sub>K<sub>0.4</sub>@Al<sub>2</sub>O<sub>3</sub>, with a thermal decomposition temperature of approximately 800 °C, plays a crucial role in minimizing CO<sub>2</sub> release during the heating process, thereby significantly improving the CO<sub>2</sub> conversion. To evaluate the impact of K doping on the material, the samples were subjected to carbon capture at 650 °C and dry reforming of methane at 750 °C. The results showed that the CO<sub>2</sub> conversion rate of NiCa<sub>1.6</sub>K<sub>0.4</sub>@Al<sub>2</sub>O<sub>3</sub> reached 52.8 %, compared to only 18.9 % for NiCa<sub>2</sub>@Al<sub>2</sub>O<sub>3</sub> under the same conditions. Moreover, this study also investigates the impact of carbon capture temperature, dry reforming temperature, and catalytic metal loading on the performance of the ICCU-DRM process.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":null,"pages":null},"PeriodicalIF":5.6,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142535937","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
Investigation and optimization of syngas generation during chemical looping gasification of municipal sludge using Fe/Al oxygen carrier 使用铁/铝氧载体对城市污泥进行化学循环气化过程中合成气生成的研究与优化
IF 5.6 2区 工程技术
Journal of The Energy Institute Pub Date : 2024-09-27 DOI: 10.1016/j.joei.2024.101844
{"title":"Investigation and optimization of syngas generation during chemical looping gasification of municipal sludge using Fe/Al oxygen carrier","authors":"","doi":"10.1016/j.joei.2024.101844","DOIUrl":"10.1016/j.joei.2024.101844","url":null,"abstract":"<div><div>To contribute to the reduction of carbon emissions, municipal sludge has to be utilized as a resource instead of being disposed of, especially since current sludge disposal methods encounter problems such as high dehydration energy consumption and secondary pollution. In this study, Fe/Al composite oxygen carriers (FOCs) were prepared using Al<sub>2</sub>O<sub>3</sub> particles as carriers and Fe(NO<sub>3</sub>)<sub>3</sub>·9H<sub>2</sub>O as a precursor. Chemical looping gasification (CLG) of wet municipal sludge was conducted in a FOC-loaded fixed bed reactor, and the effect of reaction parameters and conditions on FOCs and syngas generation characteristics were analyzed by various methods. The results showed that the participation of water vapor in the gasification reaction significantly improved the hydrogen production rate of sludge gasification and avoided the over-reduction of the FOC. The vapor released from sludge significantly improved the thermal conversion efficiency of the sludge. Higher temperatures were conducive to the gasification reaction in the first stage, but when the reaction temperature reached 900 °C, the FOC slightly sintered, the reaction atmosphere was affected, and the hydrogen ratio in syngas started decreasing. Controlling the mixing ratio of FOC to sludge (O/H) was an important influencing factor for preparing high-quality syngas. When O/H was higher than 0.25, the quality of syngas decreased significantly. The conclusions obtained in this study can guide the selection of reaction conditions for the CLG of wet sludge using FOCs to prepare hydrogen-rich syngas.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":null,"pages":null},"PeriodicalIF":5.6,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142357006","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 of the N2O formation mechanism in NOx-assisted heterogeneous catalytic combustion of soot in CeO2-based catalytic microchannel reactor 二氧化铈催化微通道反应器中氮氧化物辅助异相催化燃烧烟尘的 N2O 形成机理研究
IF 5.6 2区 工程技术
Journal of The Energy Institute Pub Date : 2024-09-26 DOI: 10.1016/j.joei.2024.101842
{"title":"Study of the N2O formation mechanism in NOx-assisted heterogeneous catalytic combustion of soot in CeO2-based catalytic microchannel reactor","authors":"","doi":"10.1016/j.joei.2024.101842","DOIUrl":"10.1016/j.joei.2024.101842","url":null,"abstract":"<div><div>A CeO<sub>2</sub>-based catalytic microchannel reactor fixed-bed experiment was carried out to investigate the N<sub>2</sub>O formation in NO<sub>x</sub>-assisted catalytic combustion with fresh and hydrothermally aging catalysts during NOx-assisted heterogeneous catalytic combustion of soot. An evolved NOx-assisted soot catalytic combustion reaction mechanism was built to investigate N<sub>2</sub>O formation and key reaction pathways based on in situ Fourier Transform Infrared Spectroscopy (FTIR) diagnostics and destiny functional theory (DFT) computations. It was found that the temperature range of N<sub>2</sub>O formation was the same as the initiation temperature of soot catalytic combustion, while the significant catalytic activity of CeO<sub>2</sub> catalyst induced a decrease in the temperature range of N<sub>2</sub>O formation. The CeO<sub>2</sub> catalyst inhibited N<sub>2</sub>O formations from NOx-assisted soot catalytic combustion, while its inhibition effect was gradually weakened with the decrease of catalyst activities. The inhibitory effect of CeO<sub>2</sub> on N<sub>2</sub>O was revealed in the reduction of CN formation rate in high temperatures. Fresh CeO<sub>2</sub> catalyst increased the dominance in the CN formation reaction, reduced the CN production rate, and contributed to the decrease in the reaction rate of CNO oxidation by NO and NO<sub>2</sub>. The increase in the ratio of NOx to soot (<em>β</em>) was more sensitive to N<sub>2</sub>O formation than the ratio <em>α</em> (NO<sub>2</sub> to NOx) and <em>γ</em> (O<sub>2</sub> to NO<sub>x</sub>), led to a stronger inhibition of N<sub>2</sub>O formation.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":null,"pages":null},"PeriodicalIF":5.6,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142357007","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
Assessment of performance and emission characteristics of CI engine using tyre pyrolysis oil and biodiesel blends by nano additives: An experimental study 通过纳米添加剂评估使用轮胎热解油和生物柴油混合物的 CI 发动机的性能和排放特性:实验研究
IF 5.6 2区 工程技术
Journal of The Energy Institute Pub Date : 2024-09-25 DOI: 10.1016/j.joei.2024.101825
{"title":"Assessment of performance and emission characteristics of CI engine using tyre pyrolysis oil and biodiesel blends by nano additives: An experimental study","authors":"","doi":"10.1016/j.joei.2024.101825","DOIUrl":"10.1016/j.joei.2024.101825","url":null,"abstract":"<div><div>In the current study, the diesel engine performance, emission, and combustion have been investigated using tyre pyrolysis oil (TPO) and biodiesel blended with nano-additives. The effect of the blending ratio on fuel combustion and emission was evaluated. The tyre pyrolysis oil was derived from scrap tyres through the pyrolysis process and biodiesel was synthesized from used cooking oil (UCO) through the transesterification process. <em>Moringa oleifera</em>-derived strontium oxide (SrO) nanoparticles were mixed into the fuel to provide extra oxygen for better combustion. Three blended fuels were formulated as: a) 5 % biodiesel and 95 % TPO containing 50 ppm SrO nanoparticles (B5TPO95SrO50), b) 10 % biodiesel and 90 % TPO containing 100 ppm SrO nanoparticles (B10TPO90SrO100), c) 50 % TPO and 50 % biodiesel without nano-additives (B50TPO50). Among the blended fuels, B10TPO90SrO100 showed the best brake thermal efficiency at 31.4 % and a brake-specific fuel consumption of 0.21 kg/kWh at full load. The B5TPO95SrO50 blended fuel showed reduced emission parameters such as unburned hydrocarbon (HC), carbon monoxide (CO), and oxides of nitrogen (NOx) by 2.05 %, 8.30 %, and 18.00 %, respectively, as compared to the conventional diesel engine at an optimum engine load (27.9 Nm). Hence, waste tyre oil and UCO biodiesel blended with biogenic SrO nano additive can be considered a promising fuel for a sustainable environment.</div></div>","PeriodicalId":17287,"journal":{"name":"Journal of The Energy Institute","volume":null,"pages":null},"PeriodicalIF":5.6,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142327466","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
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