燃料化学学报最新文献

{"title":"Synthesis of ZSM-5 molecular sieve from coal gasification fine slag and its adsorption mechanisms for Pb2+ in aqueous solution","authors":"Facun JIAO,&nbsp;Jie YU,&nbsp;Shengtao GAO,&nbsp;Yuanchun ZHANG,&nbsp;Tao LIU,&nbsp;Lirui MAO,&nbsp;Chengli WU,&nbsp;Hanxu LI,&nbsp;Zhongbing DONG","doi":"10.1016/S1872-5813(26)60659-7","DOIUrl":"10.1016/S1872-5813(26)60659-7","url":null,"abstract":"<div><div>Coal gasification fine slag (CGFS) is a solid waste generated from entrained-flow coal gasification, characterized by fine particles and rich in silicon and aluminum elements. Using CGFS as a raw material for the preparation of ZSM-5 molecular sieves enables the high-value utilization of coal-based solid waste, offering significant economic and environmental benefits. This study proposes a simple and economical hydrothermal synthesis process for ZSM-5 using CGFS as the raw material. In this process, impurities in CGFS were first removed by acid washing, which facilitated the subsequent alkaline extraction of silicon and aluminum species. The extracted Si-Al precursors were then converted into ZSM-5 <em>via</em> hydrothermal crystallization at 170 °C for 48 h, yielding a product with a high specific surface area of 358 m²/g. Adsorption experiments demonstrated that the synthesized ZSM-5 exhibited excellent adsorption performance for Pb²⁺ in aqueous solutions. At 25 °C, the removal efficiency for a 50 mg/L Pb²⁺ solution reached 83.7%, with an adsorption capacity of 104.625 mg/g under optimized conditions. The adsorption process is mainly governed by chemisorption mechanisms, including surface complexation, precipitation, and ion exchange. The synthesized ZSM-5 shows promising potential for application in the treatment of lead-containing wastewater.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (228KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 6","pages":"Article 13"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148247298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Oil production from thermal liquefaction of polyethylene in low-pressure superheated methanol","authors":"Peitao ZHAO ,&nbsp;Chengye SONG ,&nbsp;Binbin FU ,&nbsp;Xiong PENG ,&nbsp;Jingyi WANG ,&nbsp;Chao FENG ,&nbsp;Puhai YE ,&nbsp;Haiyun ZHOU","doi":"10.1016/S1872-5813(26)60678-0","DOIUrl":"10.1016/S1872-5813(26)60678-0","url":null,"abstract":"<div><div>The improper disposal of plastic waste represents both the loss of valuable resources and significant environmental threat. To address this issue, this study investigates the thermal liquefaction of high-density polyethylene (HDPE) using low-pressure superheated methanol. It systematically evaluates the effects of the reaction temperature and the ratio of reactant to methanol on the liquefaction efficiency and product characteristics. Results indicate that the complete conversion of HDPE could be achieved in low-pressure superheated state methanol (&lt;0.5 MPa) at a minimum external heating temperature of 260 °C. Under this condition, the oil yield reached 77.1% with alkanes comprising 62.3% of the product alongside minor oxygenated compounds. As temperature increased, the average carbon number of hydrocarbons gradually decreased. Below 260 °C, the HDPE conversion decreased significantly, and the products were primarily waxy. At 290 °C, the proportion of gasoline-like fractions (C6–C12) increased markedly from 16.6% to 80.9%. Furthermore, reactant ratio plays a critical regulatory role; extremes in ratio—either too high or too low—diminish heat transfer efficiency and reduce conversion. Mechanistically, the liquefaction primarily involved the cleavage of secondary C−C bonds, where the resulting oligomers further cracked into free radicals to form diverse hydrocarbons through secondary reactions. This work demonstrates that low-pressure superheated methanol liquefaction is a mild, efficient, and pretreatment-free method to upcycle polyethylene into valuable fuels. Optimizing these process parameters can pave the way for industrial application, aiding in both plastic pollution management and sustainable resource recovery.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (117KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 6","pages":"Article 14"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148247299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A computational dataset for C1 molecules catalytic conversion over iron-based catalysts","authors":"Jian ZHANG ,&nbsp;Chaochao LI ,&nbsp;Kuan LU","doi":"10.1016/S1872-5813(26)60683-4","DOIUrl":"10.1016/S1872-5813(26)60683-4","url":null,"abstract":"<div><div>The catalytic conversion of C1 molecules (e.g., CO, CO₂) represents a pivotal technology in the energy and chemical sectors, essential for achieving sustainable C1 chemistry and low-carbon transformation. A profound understanding of the underlying microscopic reaction mechanisms necessitates systematic support from both theoretical and experimental data support. This study constructs a “Computational Dataset for C1 Molecular Catalytic Conversion Based on Iron-Based Catalysts,” focusing on Fe₅C₂-based catalysts and systematically integrating multidimensional information on C1 molecular adsorption, dissociation, and formation reactions across different crystal surfaces (001, 111, 510). The dataset includes: the number of polycrystalline surface structures (Fe₅C₂(001) with 96 configurations, Fe₅C₂(111) with 93, and Fe₅C₂(510) with 472); species involved in the full reaction pathways under complex co-adsorption environments (adsorbed states such as COH and H₂, dissociated states like CO under 2H conditions, and formation states such as CH/CH₃ under 2H and H₂O conditions); and a standardized hierarchical storage system categorizing reaction types, crystal surfaces, and structural parameters. This dataset not only serves as a benchmark for validating quantum chemical calculation methods but also provides critical data support for catalyst design and reaction pathway optimization in C1 molecular catalytic conversion by uncovering the coupling effects of crystal surfaces and reaction mechanisms.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (224KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 6","pages":"Article 16"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148247301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ni/CaO-ZrO2-Al2O3 catalyst for CO2 methanation: Enhanced low-temperature activity and high-temperature sintering resistance","authors":"Jia LI ,&nbsp;Qingqing SUI ,&nbsp;Yanan JIANG ,&nbsp;Yang BAI ,&nbsp;Yuan LIU","doi":"10.1016/S1872-5813(26)60639-1","DOIUrl":"10.1016/S1872-5813(26)60639-1","url":null,"abstract":"<div><div>Ni/Al₂O₃ is regarded as one of the most promising catalysts for industrial application in CO₂ methanation, but is still plagued by issues of inadequate low-temperature activity and thermal sintering. In response to these challenges, an Ni/CaO-ZrO₂-Al₂O₃ catalyst with high low-temperature activity and robust high-temperature sintering resistance was prepared by introducing Ca and Zr promoters. Under the reaction conditions of 250 °C and a space velocity of 30000 mL/(g·h), the CO₂ conversion and methane space-time yield reached 96% and 257.5 mmol/(g·h), respectively. In addition, the Ca-Zr dual-promoted Ni/CaO-ZrO₂-Al₂O₃ catalyst exhibited a smaller increase in the Ni particle size and less activity loss than the Ca-promoted catalyst in a 200 h aging test at 600 °C. The Ca and Zr promoters can not only improve the Ni dispersion but also enhance the surface basicity, resulting in excellent low-temperature activity. Moreover, the Zr promoter suppresses the transformation of Ca species into CaCO₃ through solid-phase reaction under operating conditions, thereby inhibiting Ni sintering and ensuring high-temperature stability. This work provides a new promoter design strategy for the development of high-performance Ni-based catalysts for CO₂ methanation.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (170KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 6","pages":"Article 7"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148247304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research progress on the role of oxygen vacancy in catalysts for dry reforming of methane","authors":"Kai CHEN ,&nbsp;Yuxiang CHEN ,&nbsp;Yexin ZHANG ,&nbsp;Jian ZHANG","doi":"10.1016/S1872-5813(26)60638-X","DOIUrl":"10.1016/S1872-5813(26)60638-X","url":null,"abstract":"<div><div>The extensive emission of greenhouse gases, primarily CO₂ and CH₄, has contributed to intensified global warming. Dry reforming of methane (DRM, CH₄ + CO₂ → 2CO + 2H₂) offers a pathway for the synergistic utilization of these two major greenhouse gases, presenting important implications for both environmental protection and energy sustainability. However, the catalysts still face the challenges such as carbon deposition and sintering of active metals, which adversely affect the catalytic performance and long-term stability. Oxygen vacancies, which are common lattice defects in metal oxides, have been demonstrated to improve the DRM performance by modulating the surface and interfacial properties of the catalysts. This review systematically summarizes research progresses in DRM over the past decade, outlines the major challenges and emphasizes the critical roles of oxygen vacancies in suppressing carbon deposition and inhibiting metal sintering. Furthermore, the mechanisms through which oxygen vacancies influence DRM reactions are discussed, combined with their formation pathways and regulation strategies. These insights provide essential theoretical foundations for the design and synthesis of highly efficient and stable DRM catalysts.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (227KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 6","pages":"Article 1"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148246786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the influence mechanism of acidic mineral components on the reaction behavior of ion-exchangeable Ca during coal pyrolysis","authors":"Hongsheng LI ,&nbsp;Pan HAO ,&nbsp;Lunjing YAN ,&nbsp;Jiao KONG ,&nbsp;Meijun WANG ,&nbsp;Weiren BAO ,&nbsp;Liping CHANG","doi":"10.1016/S1872-5813(26)60642-1","DOIUrl":"10.1016/S1872-5813(26)60642-1","url":null,"abstract":"<div><div>Inherent minerals play a significant role in the thermal conversion of coal. However, the influence mechanism of the interactions among minerals on the generation of tar during coal pyrolysis remains unclear. To investigate the mechanism of the effect of acidic mineral components on the behavior of Ca²⁺ during coal pyrolysis, several samples were prepared by HCl and HF washing and Ca²⁺ ion exchanging. The pyrolysis behaviors of the experimental coal samples were examined in a fixed-bed reactor. During the acid washing process, the ash content was effectively reduced, while the contents of organic elements such as carbon and hydrogen were also decreased. The loading of ion-exchangeable calcium enhanced the thermal weight loss rate of the coal sample in the 500–550 °C range, and the corresponding peak temperature shifted from 530 °C to 514 °C for the coal without Ca. When coal was pyrolyzed at a final temperature of 600 °C with a slow heating rate, kaolinite in acidic mineral components undergoes dehydroxylation to form metakaolin, and the content of small aromatic rings (&lt;6 rings) in the char pyrolyzed by Ca-loaded coal sample was lower than that of the coal sample after acid washing. Due to the coexistence of acidic mineral components with ion-exchangeable Ca, the content of aliphatic hydrocarbons in the pyrolysis tar of YL-HCl-Ca reached 21.98%, significantly higher than 13.60% in the corresponding pyrolysis tar of YL-De-Ca. From the apparent results, it can be found that the acidic mineral components inhibit the adverse effect of ion exchangeable Ca²⁺ on the lightening of coal tar.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (125KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 6","pages":"Article 11"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148246785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design strategies and recent advances in cellulase-mimetic solid acid catalysts","authors":"Youhua WANG ,&nbsp;Shuling CAO ,&nbsp;Tianyi LONG ,&nbsp;Chuanjun ZOU ,&nbsp;Xu CHENG ,&nbsp;Wanbin ZHU ,&nbsp;Hongliang WANG","doi":"10.1016/S1872-5813(25)60626-8","DOIUrl":"10.1016/S1872-5813(25)60626-8","url":null,"abstract":"<div><div>The dense crystalline structure and limited accessibility of cellulose severely hinder its efficient catalytic conversion. In response, biomimetic solid acid catalysts inspired by cellulase binding domains (CBDs) have emerged as a promising strategy to enhance cellulose hydrolysis by mimicking the substrate recognition and enrichment functions of natural enzymes. This review systematically summarizes recent advances in the design of CBD-mimetic solid acids based on four representative strategies: electrostatic anchoring, hydrophobic microenvironment engineering, spatial confinement and covalent lock-and-key mechanisms. The underlying principles of these approaches, including substrate-specific recognition, local concentration enhancement, and synergistic “adsorption-catalysis” effects, are critically discussed to elucidate their contributions in improving catalytic affinity, selectivity, and durability. Despite significant progress, challenges such as mass-transfer resistance and insufficient structural robustness remain in complex biomass conversion systems. Looking forward, the integration of sub-enzymatic materials, such as carbon quantum dots (CQDs), into biomimetic catalysts offers new opportunities to achieve efficient, recyclable and hierarchically organized catalytic systems, thereby providing a powerful route for the sustainable valorization of cellulose and other lignocellulosic resources.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (115KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 5","pages":"Article 3"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147961239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on direct oxidation of methanol to polyoxymethylene dimethyl ethers over NASICON-based catalytic materials","authors":"Yitao CHENG ,&nbsp;Xiaqing WANG ,&nbsp;Xiujuan GAO ,&nbsp;Faen SONG ,&nbsp;Xiaoxing WANG ,&nbsp;Yingquan WU ,&nbsp;Junfeng ZHANG ,&nbsp;Yizhuo HAN ,&nbsp;Qingde ZHANG","doi":"10.1016/S1872-5813(26)60636-6","DOIUrl":"10.1016/S1872-5813(26)60636-6","url":null,"abstract":"<div><div>Polyoxymethylene dimethyl ethers (DMM_<em>x</em>) are highly promising clean diesel additives. Compared to the traditional aldol condensation route, the one-step oxidative method for producing DMM_<em>x</em> directly from methanol is a green synthesis route offering significant advantages. However, due to the complexity of the reaction, a balance must be struck between oxidation depth and C–O chain growth efficiency. This imposes specific requirements on the design of catalysts with multifunctional active sites: the catalyst should possess appropriate oxidative activity, suitable acid strength distribution, and effective synergy between these two functions. To address these challenges, this study designed a sulfuric acid-modified molybdenum-doped NASICON catalyst, which demonstrated favorable catalytic performance in the one-step oxidative synthesis of DMM_<em>x</em> from methanol. Over the NSC-Mo-0.5-30% catalyst, methanol conversion rate of 81.3% and the DMM_<em>x</em> selectivity of 58.7% were achieved, along with the formation of heavier molecules, as evidenced by the DMM_2–6 selectivity of 11.3%. The NH₃-TPD, Py-IR and XPS results indicate that the introduction of molybdenum increases the number of weak Lewis acid sites, while sulfuric acid impregnation not only generates gradient-distributed Brønsted acid sites but also promotes the formation of Mo⁵⁺/Mo⁶⁺ redox pairs. The cooperation of the two types of active sites significantly enhances catalyst performance.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (112KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 5","pages":"Article 6"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147961236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Selective oxidation of aromatic alcohols to aldehydes catalyzed by HKUST-1-derived Cu-based carbon material and TEMPO","authors":"Yang LUO ,&nbsp;Shujing ZHANG ,&nbsp;Hong MA ,&nbsp;Chenguang WANG","doi":"10.1016/S1872-5813(26)60635-4","DOIUrl":"10.1016/S1872-5813(26)60635-4","url":null,"abstract":"<div><div>In this work, a Cu-based carbon catalyst (H-Cu/C) with an octahedral morphology was synthesized by pyrolyzing the metal-organic framework (MOF) precursor HKUST-1, where Cu(0) nanoparticles were uniformly dispersed in the carbon matrix, alongside the formation of island-like Cu₂O structures as the active sites. Multiple characterization techniques, including XPS, XRD, SEM and HRTEM, reveal the critical role of carbon matrix in stabilizing the metal nanoparticles. In combination with TEMPO and using molecular oxygen as a green oxidant, the H-Cu/C catalyst is highly efficient in the selective oxidation of aromatic alcohols to the corresponding aldehydes under alkali-free conditions. Using benzyl alcohol as a model substrate, an alcohol conversion of 99.2% and a benzaldehyde yield of 94.1% were achieved under mild reaction conditions (100 °C, 0.5 MPa O₂, 1 h). The catalytic system displays excellent universality for various mono- and ortho/para-disubstituted aromatic alcohols, affording an alcohol conversion of over 99% and a yield of corresponding aromatic aldehydes of above 95%. In addition, the H-Cu/C catalyst can be regenerated <em>via</em> H₂ reduction and reused without significant loss of activity. This work provides a new strategy for designing green and efficient non-noble metal catalytic systems for the oxidation reactions.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (176KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 5","pages":"Article 8"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147960851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Identification of coal characteristics by near-infrared spectroscopy: Machine learning predictions and experimental validations","authors":"Haiquan AN ,&nbsp;Zhen LIU,&nbsp;Ye LI,&nbsp;Baozi PENG","doi":"10.1016/S1872-5813(25)60611-6","DOIUrl":"10.1016/S1872-5813(25)60611-6","url":null,"abstract":"<div><div>In this study, near-infrared spectroscopy was used along with various machine learning algorithms to develop a fast and reliable framework for identifying coal components, which significantly improved the accuracy and efficiency of predictions. Support vector machine (SVM), random forest (RF), temporal convolutional network (TCN), one-dimensional convolutional neural network (1D CNN), and gated recurrent unit (GRU) algorithms were used for regression modeling of coal properties. Among the various models considered herein, the TCN model was shown to provide the lowest Mean Absolute Error (MAE) value, which was 0.505. In addition, the RF model demonstrated the lowest Root Mean Square Error (RMSE) value of 0.618, indicating its robustness in prediction on the test set. The TCN model, on the other hand, had the lowest Coefficient of Variation (CV) value of 0.042, which demonstrated its good generalization ability and stability. Furthermore, the developed single-output models revealed that different models have different predictive effects on coal components. For example, it was found that the TCN model is optimal for predicting ash content, while the RF model is the most accurate model for predicting fixed carbon and low calorific value. Taking into account the quantity of model parameters, computation time, and accuracy analysis, the results showed that the RF, 1D CNN and TCN models are more efficient. Finally, the influence of key characteristic peaks on prediction results was revealed through SHAP value analysis. The results showed a relationship between absorption intensity and composition of organic and inorganic values in coal to near-infrared light, suggesting important characteristic spectral ranges for ash, moisture, and fixed carbon. This research not only provides a new method for rapid detection in the coal industry, but also serves as a reference for component analysis in other fields.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (164KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":15956,"journal":{"name":"燃料化学学报","volume":"54 5","pages":"Article 11"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147960854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}