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Corrosion Behavior of Aluminum Alloy 6063 in Prosopis juliflora Biodiesel–Diesel–Ethanol Blends 6063铝合金在大豆生物柴油-柴油-乙醇混合物中的腐蚀行为
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-09-25 DOI: 10.1002/ceat.70321
Saravana Kannan Thangavelu, Piraiarasi Chelladorai, Elammaran Jayamani
{"title":"Corrosion Behavior of Aluminum Alloy 6063 in Prosopis juliflora Biodiesel–Diesel–Ethanol Blends","authors":"Saravana Kannan Thangavelu,&nbsp;Piraiarasi Chelladorai,&nbsp;Elammaran Jayamani","doi":"10.1002/ceat.70321","DOIUrl":"https://doi.org/10.1002/ceat.70321","url":null,"abstract":"<div>\u0000 \u0000 <p>The increasing use of biodiesel–diesel–ethanol (BDE) blends requires a clear understanding of their compatibility with fuel-system materials. This study evaluates the corrosion behavior of aluminum alloy EN AW-6063 in <i>Prosopis juliflora</i> methyl ester (PJME)-based BDE blends. B10D80E10 and B20D70E10 were compared with diesel (B0) through 560 h static immersion tests at room temperature and 60°C. Corrosion rates increased from 0.0515 mil per year (mpy) (B0) to 0.0912 mpy at room temperature and from 0.0902 to 0.2652 mpy at 60°C. Surface analyses revealed pitting corrosion, oxide-film degradation, and a 6%–9% reduction in microhardness. Fuel degradation was confirmed by increased TAN (1.06 mg KOH g<sup>−1</sup>), viscosity variation, color darkening, and Fourier transform infrared (FTIR) evidence of oxidation products, highlighting material compatibility challenges for PJME-based fuels.</p>\u0000 </div>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 9","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Capacity-Based Scale-Up and Economic Evaluation of Solvent-Aided Biodiesel Purification 溶剂辅助生物柴油净化的容量放大及经济性评价
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-09-25 DOI: 10.1002/ceat.70322
Shafirah Samsuri, Wan Nur Aisyah Wan Osman, Usman Bello, Wan Nur Athirah Mazli, Siti Aminah Mohd Johari
{"title":"Capacity-Based Scale-Up and Economic Evaluation of Solvent-Aided Biodiesel Purification","authors":"Shafirah Samsuri,&nbsp;Wan Nur Aisyah Wan Osman,&nbsp;Usman Bello,&nbsp;Wan Nur Athirah Mazli,&nbsp;Siti Aminah Mohd Johari","doi":"10.1002/ceat.70322","DOIUrl":"https://doi.org/10.1002/ceat.70322","url":null,"abstract":"<div>\u0000 \u0000 <p>Solvent-aided crystallization (SAC) enables selective removal of glycerol-rich and polar impurities during biodiesel purification without wastewater generation. However, its economic feasibility beyond laboratory scale has not been fully quantified. This study presents a stage-bounded techno-economic analysis of an ethyl acetate-based SAC system, grounded in experimental data from a 10 L batch unit and scaled up to 50, 100, and 500 L using established capacity-scaling methodologies. The unit purification cost (UPC) at laboratory scale is RM 6.40 L<sup>−1</sup>, primarily influenced by labor and capital recovery. Scale-up demonstrates strong economies of scale, reducing UPC to RM 1.68, 1.04, and 0.38 L<sup>−1</sup> at 50, 100, and 500 L, respectively. Sensitivity analysis identifies electricity price and labor allocation as dominant cost drivers. Comparative assessment indicates that upscaled SAC achieves competitive or lower costs than water and dry washing while eliminating wastewater generation.</p>\u0000 </div>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 9","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Performance of a Pilot-Scale, Two-Stage Anaerobic Digester Treating Municipal Sludge 中试两级厌氧消化池处理城市污泥的性能研究
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-09-25 DOI: 10.1002/ceat.70324
Abdullah Almatouq, Abdulla Abusam, Hussain Hussain, Mishari Khajah, Hussain Abdullah, Rashed Al-Yaseen, Mariam Al-Jumaa, Farah Al-Ajeel, Mohammed Aljassam, Ahmed Shishter
{"title":"Performance of a Pilot-Scale, Two-Stage Anaerobic Digester Treating Municipal Sludge","authors":"Abdullah Almatouq,&nbsp;Abdulla Abusam,&nbsp;Hussain Hussain,&nbsp;Mishari Khajah,&nbsp;Hussain Abdullah,&nbsp;Rashed Al-Yaseen,&nbsp;Mariam Al-Jumaa,&nbsp;Farah Al-Ajeel,&nbsp;Mohammed Aljassam,&nbsp;Ahmed Shishter","doi":"10.1002/ceat.70324","DOIUrl":"https://doi.org/10.1002/ceat.70324","url":null,"abstract":"<div>\u0000 \u0000 <p>This study investigated the performance of a two-stage, pilot-scale AD reactor for energy generation from sludge produced at Kuwaiti municipal WWTPs. Sludge characterization results showed that all measured parameters were within the optimal range for methanogenic bacterial growth, except the low carbon-to-nitrogen (C/N) ratio. In batch mode, the reactor achieved a maximum gas production of 390 L/day with a methane heat content of 3.31 kWh/day. In contrast, in semicontinuous mode, the AD achieved higher gas production of 550 L/day and higher methane heat content (4.22 kWh/day). In terms of sludge treatability, the AD reactor achieved maximum destruction rates of the volatile suspended solids (VSS) of 21% (batch mode) and 16% (semicontinuous). Future research should focus on the selection of suitable waste streams to be used as a co-substrate to enhance biogas production and on the determination of appropriate and economically feasible pretreatment methods for the sludge.</p>\u0000 </div>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 9","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
A Generative Adversarial Imputation and Hybrid XGBoost Approach for Refinery Corrosion Prediction 炼油厂腐蚀预测的生成对抗估算和混合XGBoost方法
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-09-24 DOI: 10.1002/ceat.70320
Zhibin Yu, Wei Chen, Xiaofei Liu, Chao Wang, Lite Zhang, Haozhe Jin
{"title":"A Generative Adversarial Imputation and Hybrid XGBoost Approach for Refinery Corrosion Prediction","authors":"Zhibin Yu,&nbsp;Wei Chen,&nbsp;Xiaofei Liu,&nbsp;Chao Wang,&nbsp;Lite Zhang,&nbsp;Haozhe Jin","doi":"10.1002/ceat.70320","DOIUrl":"https://doi.org/10.1002/ceat.70320","url":null,"abstract":"<div>\u0000 \u0000 <p>Refining units face severe multiphase flow corrosion, yet existing early-warning systems suffer from missing monitoring data and poor model generalization. We propose a prediction framework combining a Generative Adversarial Imputation Network (GAIN) and an Improved Particle Swarm Optimization-tuned Extreme Gradient Boosting model (IPSO-XGB-DROP). First, GAIN reconstructs missing data through physically constrained adversarial learning, preserving nonlinear physical coupling and ensuring physical consistency at up to 50% missing-data rates. Next, IPSO-XGB-DROP introduces feature dropout into the optimized XGBoost to deliver precise predictions, jointly tuning hyperparameters and dropout rate to reduce overfitting. Validated on real industrial data, the model achieves <i>R</i><sup>2</sup> = 0.944 ± 0.018, RMSE = 0.0115 ± 0.0012, MAE = 0.0095 ± 0.0008, demonstrating the integration of data-driven and physics-informed methods for predictive maintenance in high-risk scenarios.</p>\u0000 </div>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 9","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 Preparation of Ni-Cr/γ-Al2O3 Catalyst and Its Use in the Production of Synthetic Fuel Ni-Cr/γ-Al2O3催化剂的制备及其在合成燃料生产中的应用研究
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-09-24 DOI: 10.1002/ceat.70318
Ali A. Hussein, Abdelrahman B. Fadhil, Marwa H. Altamer
{"title":"Study of the Preparation of Ni-Cr/γ-Al2O3 Catalyst and Its Use in the Production of Synthetic Fuel","authors":"Ali A. Hussein,&nbsp;Abdelrahman B. Fadhil,&nbsp;Marwa H. Altamer","doi":"10.1002/ceat.70318","DOIUrl":"https://doi.org/10.1002/ceat.70318","url":null,"abstract":"<div>\u0000 \u0000 <p>This work reports the synthesis of the Ni-Cr/γ-Al<sub>2</sub>O<sub>3</sub> catalyst by preparing γ-Al<sub>2</sub>O<sub>3</sub> from local kaolin clay, followed by impregnation with Ni-Cr. The catalyst was identified using x-ray diffraction (XRD), BET surface area and porosity, FESEM, and energy-dispersive x-ray (EDX). It was then tested in the ex situ thermal cracking of atmospheric residue (ATR) from a local refinery in Mosul, Iraq. The best upgraded liquid oil was produced at 400°C for 1 h using a 2.0 wt.% 5.0% Ni-Cr/γ-Al<sub>2</sub>O<sub>3</sub> catalyst. Analysis by gas chromatography–mass spectrometry (GC–MS) showed that the resulting liquid oil was essentially composed of <i>n</i>-alkanes, iso-alkanes, and aromatics. Moreover, the liquid oil contained 24.0% gasoline, with an octane number of 84.4. In conclusion, the Ni-Cr/γ-Al<sub>2</sub>O<sub>3</sub> catalyst can be recommended as a potential catalyst for conventional catalytic thermal cracking processes.</p>\u0000 </div>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 9","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Temperature Dependence of Chemisorption of Acetone on Silica–Alumina Gels 二氧化硅-氧化铝凝胶对丙酮化学吸附的温度依赖性
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-09-18 DOI: 10.1002/ceat.70316
Jonas Beerlage, Christoph Pasel, Christian Bläker, Tobias Eckardt, Nele Klinkenberg, Dieter Bathen
{"title":"Temperature Dependence of Chemisorption of Acetone on Silica–Alumina Gels","authors":"Jonas Beerlage,&nbsp;Christoph Pasel,&nbsp;Christian Bläker,&nbsp;Tobias Eckardt,&nbsp;Nele Klinkenberg,&nbsp;Dieter Bathen","doi":"10.1002/ceat.70316","DOIUrl":"https://doi.org/10.1002/ceat.70316","url":null,"abstract":"<div>\u0000 \u0000 <p>Acetone can cause problems in adsorption processes such as CO<sub>2</sub> drying prior to compression and pipeline transport. To investigate the temperature-dependent adsorption (ADS) behavior of acetone on silica–alumina gels, ADS and desorption experiments were conducted between 50°C and 175°C, followed by concentration swing desorption (CSD), temperature programmed desorption (TPD), and thermogravimetric analysis (TGA). With increasing temperature, ADS exhibited an increasingly chemisorptive character. After ADS at 100–175°C, significant amounts of acetone and reaction products remained on the surface even after TPD and TGA. The results indicate chemical conversion of acetone and formation of thermally stable carbonaceous species, likely formed via aldol condensation.</p>\u0000 </div>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 9","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148994358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Synthesis and Properties of Sodium Secondary Alkyl Sulfates for Concentrated Laundry Sheets 浓缩床单用仲烷基硫酸钠的合成及性能研究
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-09-18 DOI: 10.1002/ceat.70315
Mei Ji, Cong Wang, Li Song, Jie Shen, Volker Hessel, Liangliang Lin
{"title":"Synthesis and Properties of Sodium Secondary Alkyl Sulfates for Concentrated Laundry Sheets","authors":"Mei Ji,&nbsp;Cong Wang,&nbsp;Li Song,&nbsp;Jie Shen,&nbsp;Volker Hessel,&nbsp;Liangliang Lin","doi":"10.1002/ceat.70315","DOIUrl":"https://doi.org/10.1002/ceat.70315","url":null,"abstract":"<div>\u0000 \u0000 <p>Sodium secondary alkyl sulfates (SASs) with C<sub>12</sub>, C<sub>14</sub>, and C<sub>16</sub> chains were synthesized from linear α-olefins and H<sub>2</sub>SO<sub>4</sub>. Using 1-dodecene as the model substrate, optimal conditions (H<sub>2</sub>SO<sub>4</sub>/olefin molar ratio of 1.1, 10°C, 30 min addition) achieved &gt;93% conversion, which was successfully applied to C<sub>14</sub> and C<sub>16</sub> homologues. SAS-12 and SAS-14 have Krafft points below 0°C, indicating favorable low-temperature solubility. Conductivity measurements confirmed that the critical micelle concentration (CMC) of all three homologues increases with temperature. Among the homologues, SAS-14 shows the best balance of wetting and foaming performance. In laundry sheet applications, SAS-based formulations achieved overall detergency comparable to alcohol ether sulfate (AES), with superior removal of sebum and protein soils at both 30°C and 20°C. With its favorable low-temperature solubility, competitive surface activity, and validated performance, SAS-14 is a promising candidate for high-performance concentrated laundry sheets.</p>\u0000 </div>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 9","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148994362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Investigating Nucleation Inhibition in the Dehydrogenation of Perhydro Benzyltoluene 过氢苄基甲苯脱氢过程成核抑制的研究
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-09-18 DOI: 10.1002/ceat.70312
Felix Uhrig, Adrian Zilm, Michael Geißelbrecht
{"title":"Investigating Nucleation Inhibition in the Dehydrogenation of Perhydro Benzyltoluene","authors":"Felix Uhrig,&nbsp;Adrian Zilm,&nbsp;Michael Geißelbrecht","doi":"10.1002/ceat.70312","DOIUrl":"https://doi.org/10.1002/ceat.70312","url":null,"abstract":"<p>One major hurdle for the implementation of a hydrogen-based energy system is the storage and transport of hydrogen. In this context, liquid organic hydrogen carrier (LOHC) technology is a promising solution. Besides catalytic activity, the formation and detachment of hydrogen bubbles affect significantly the dehydrogenation rate in the multiphasic reaction by enhancing mass transfer of the reactants. An active catalyst state is achieved if complete liquid filling of the pores of the catalyst is prevented, which can happen during the shutdown procedure of the reactor, an effect known as nucleation inhibition. This study investigates the effect of nucleation inhibition on the hydrogen release process of the LOHC compound perhydro benzyltoluene and develops suitable reactivation strategies. It is shown that straightforward techniques, such as a brief reduction in pressure, a short temperature increase, or a mechanical impulse, can fully restore the activity of the catalyst.</p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 9","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ceat.70312","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148994357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Eco-Friendly Recycling of Copper-Plated Paper Using Fenton Chemistry 利用Fenton化学技术环保回收镀铜纸
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-09-18 DOI: 10.1002/ceat.70310
Lukas Mielewczyk, Virginia Liebscher, Julia Grothe, Stefan Kaskel
{"title":"Eco-Friendly Recycling of Copper-Plated Paper Using Fenton Chemistry","authors":"Lukas Mielewczyk,&nbsp;Virginia Liebscher,&nbsp;Julia Grothe,&nbsp;Stefan Kaskel","doi":"10.1002/ceat.70310","DOIUrl":"https://doi.org/10.1002/ceat.70310","url":null,"abstract":"<p>A novel eco-friendly approach for copper plating onto functionalized paper is demonstrated utilizing nontoxic reagents like sugars and amino acids in a Maillard-type reaction. The plated copper can be recovered by pulping of the paper followed by a separation via centrifugation or sedimentation process. The copper can be re-oxidized by a Fenton-like process in an autocatalytic manner using hydrogen peroxide under mild conditions to result in a copper(II) salt. The latter can be reintroduced into an electroless plating process, yielding pure copper, closing the cycle of paper plating and recycling via Fenton-like processes. Overall, a closed processing cycle for copper electronics is presented, starting from plating onto paper followed by recycling in a highly environmentally friendly way. This opens the way for the fabrication of sustainable paper–based circuit boards with conducting paths made from copper and their beneficial recyclability compared to plastic-based circuit boards.</p>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 9","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ceat.70310","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148994360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Biodiesel From Cottonseed Oil via Acid–Alkali Transesterification: Production and Performance 棉籽油酸碱酯交换制备生物柴油的研究
IF 2 4区 工程技术
Chemical Engineering & Technology Pub Date : 2026-09-18 DOI: 10.1002/ceat.70304
Jaafar Sadeq Abbas, Husam Talib Hamzah, Mustafa Al Dulaimi, Mohd Shukor Salleh, Thamer Adnan Abdullah, Mohammed Al-Asadi, Firas Al Oqaili, M. N. Mohammed, Oday I. Abdullah
{"title":"Biodiesel From Cottonseed Oil via Acid–Alkali Transesterification: Production and Performance","authors":"Jaafar Sadeq Abbas,&nbsp;Husam Talib Hamzah,&nbsp;Mustafa Al Dulaimi,&nbsp;Mohd Shukor Salleh,&nbsp;Thamer Adnan Abdullah,&nbsp;Mohammed Al-Asadi,&nbsp;Firas Al Oqaili,&nbsp;M. N. Mohammed,&nbsp;Oday I. Abdullah","doi":"10.1002/ceat.70304","DOIUrl":"https://doi.org/10.1002/ceat.70304","url":null,"abstract":"<div>\u0000 \u0000 <p>Cottonseed oil-based biodiesel is a renewable alternative to conventional diesel fuel. The experiments were conducted at molar ratios (3:1–9:1), reaction times (30–120 min), and reaction temperatures (40–70°C). At a 5:1 molar ratio, reaction conditions of 1% NaOH, 60°C, and 90 min gave the highest biodiesel yield (93%), but increasing the NaOH loading also decreased the yield due to soap formation, whereas higher molar ratios depressed the biodiesel yield. Cottonseed methyl ester (CSME) contained 77.5%, 11.8%, and 10.61% carbon, hydrogen, and oxygen, respectively, by elemental analysis, whereas petroleum diesel contained 86.39%, 13.0%, and 0.5%, respectively. The measured fuel properties fall within both ASTM D6751 and EN 14214 biodiesel specification limits at constant loads. Brake thermal efficiencies were found to be 30.99% for diesel, 28.99% for CSME10, and 27.98% for CSME20. So, it was proved that a slight reduction (unaffected) in fuel efficiency occurred when using a bio-cottonseed diesel blend.</p>\u0000 </div>","PeriodicalId":10083,"journal":{"name":"Chemical Engineering & Technology","volume":"49 9","pages":""},"PeriodicalIF":2.0,"publicationDate":"2026-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148994363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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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