燃料化学学报Pub Date : 2026-06-01Epub Date: 2026-06-15DOI: 10.1016/S1872-5813(26)60643-3
Kai HE , Xuyan SU , Zhuang QU , Ye YANG , Yucai QIN , Lijuan SONG
{"title":"Principles of different CO adsorption types on Pt-based supported catalysts","authors":"Kai HE , Xuyan SU , Zhuang QU , Ye YANG , Yucai QIN , Lijuan SONG","doi":"10.1016/S1872-5813(26)60643-3","DOIUrl":"10.1016/S1872-5813(26)60643-3","url":null,"abstract":"<div><div>This study systematically investigates the CO adsorption behavior and electron transfer mechanisms on Pt<sub><em>n</em></sub>/γ-Al<sub>2</sub>O<sub>3</sub> catalysts using density functional theory (DFT) calculations. By combining infrared vibrational spectroscopy, electron difference density, and charge decomposition analysis, this work reveals how Pt cluster size regulates CO adsorption configurations, electron transfer, and C−O bond vibrational frequencies. The results show that small Pt<sub>4</sub> sub-nanometric clusters, owing to the presence of highly undercoordinated Pt atoms, exhibit strong <em>d</em>-electron back-donation, leading to enhanced population of the CO π* antibonding orbitals, pronounced C−O bond weakening, and a redshift in the IR frequency. In contrast, large Pt<sub>13</sub> sub-nanometric clusters, due to their dense structure, experience electron delocalization, weakened back-donation, enhanced C−O bonding, and a blueshift in the IR frequency. The intensity of electron transfer increases in linear, bridge, and multi-terminal adsorption, respectively. Bridge adsorption is most sensitive to size, with an IR blueshift of 81 cm<sup>−1</sup> observed when the number of Pt atoms increases from 4 to 13. Multi-terminal adsorption exhibits a stable frequency due to a “saturation effect.” This study establishes a comprehensive correlation between Pt size, electronic structure, adsorption properties, and infrared response, elucidating the CO adsorption mechanism on Pt-based catalysts and providing atomic-scale theoretical guidance for the design of efficient catalysts.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (138KB)</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 9"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148246788","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}
燃料化学学报Pub Date : 2026-06-01Epub Date: 2026-06-15DOI: 10.1016/S1872-5813(26)60675-5
Xinyu LU , Jianghong WU , He WANG , Chao WANG
{"title":"A dataset of nickel and cobalt based phosphides for the application of electrocatalytic oxygen evolution reaction in alkaline solution","authors":"Xinyu LU , Jianghong WU , He WANG , Chao WANG","doi":"10.1016/S1872-5813(26)60675-5","DOIUrl":"10.1016/S1872-5813(26)60675-5","url":null,"abstract":"<div><div>Hydrogen as the energy carrier is a promising solution to mitigate the environmental issues associated with the use of fossil fuels. Efficient and inexpensive electrocatalysts for oxygen evolution in alkaline media are crucial for advancing the widespread application of alkaline water electrolyzers for hydrogen generation. Transition metal phosphides are promising candidates as the (pre-)catalysts for electrocatalytic oxygen evolution reactions. This dataset compiles and compares the electrocatalytic oxygen evolution reaction activity of nickel- and cobalt-based phosphides. The metal phosphides reported were synthesized using solvothermal phosphidization or electrodeposition methods, and the oxygen evolution activities of these phosphides were evaluated using linear sweep voltammetry in 1 mol/L KOH. Besides, cyclic voltammetry and electrochemical impedance spectroscopy were performed on these metal phosphides. The total volume of this dataset is 14.5 MB, comprising 312 files. It serves as a valuable reference for the design of active metal phosphide-based materials for electrocatalysis.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (80KB)</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 15"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148247300","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}
燃料化学学报Pub Date : 2026-06-01Epub Date: 2026-06-15DOI: 10.1016/S1872-5813(26)60645-7
Guangjun LUO , Shuang CHEN , Hong YIN , Jia ZENG , Hongmei XIE , Guilin ZHOU
{"title":"Research progress on Mn-based catalysts for catalytic combustion of VOCs","authors":"Guangjun LUO , Shuang CHEN , Hong YIN , Jia ZENG , Hongmei XIE , Guilin ZHOU","doi":"10.1016/S1872-5813(26)60645-7","DOIUrl":"10.1016/S1872-5813(26)60645-7","url":null,"abstract":"<div><div>Volatile organic compounds (VOCs) originating from diverse sources, exert a profound detrimental impact on the atmospheric environment and pose grave threats to human health. Manganese (Mn)-based catalysts, celebrated for their exceptional structural diversity and abundant redox versatility, are extensively employed in the catalytic combustion of VOCs. This review summarizes the catalytic performance of diverse Mn-based catalysts. It emphasizes strategies for preparing high-performance Mn-based catalysts and provides a systematic analysis of how the construction of active sites influences their catalytic combustion performance for VOCs. Furthermore, the catalytic oxidation mechanisms of VOCs are expounded in detail. This work offers valuable insights and practical guidance for the remediation of VOCs pollution.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (91KB)</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 3"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148247303","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}
燃料化学学报Pub Date : 2026-06-01Epub Date: 2026-06-15DOI: 10.1016/S1872-5813(25)60624-4
Yongqiang GU , Jiancai SUI , Tao XING , Tao LI , Guangbo LIU , Minghui TAN , Qiang LIU , Tsubaki Noritatsu
{"title":"Recent advances in catalysts for the highly selective conversion of syngas into para-xylene","authors":"Yongqiang GU , Jiancai SUI , Tao XING , Tao LI , Guangbo LIU , Minghui TAN , Qiang LIU , Tsubaki Noritatsu","doi":"10.1016/S1872-5813(25)60624-4","DOIUrl":"10.1016/S1872-5813(25)60624-4","url":null,"abstract":"<div><div>Para-xylene (PX), as a pivotal chemical feedstock, plays an indispensable role in ensuring nation energy strategic security and propelling the low-carbon and green development of the chemical industry. The review systematically summarizes the recent advancements in catalysts for the direct conversion of syngas into <em>p</em>-xylene-enriched aromatics, focusing on three distinct catalytic systems: the Fischer-Tropsch synthesis catalyst/zeolite coupling system, the methanol synthesis catalyst/zeolite synergistic system, and the dual engine driven/zeolite catalytic system. Through a comprehensive and in-depth analysis of critical parameters, including the electronic structure features of active components, the synergistic action mechanism of promoters, and the pore topology of zeolite within each catalytic system, the governing principles of catalytic activity, selectivity, and stability are thoroughly revealed. Simultaneously, based on the reaction intermediate evolution pathways, the reaction mechanisms involving olefin, methanol, and olefin-methanol dual intermediate routes are systematically explored. The current scientific bottlenecks confronted by the catalyst systems, such as the intricate challenge of achieving coordinated optimization of activity and stability, and the lack of clarity in the regulatory mechanism of PX directional selectivity, are meticulously expounded. Building upon these identified issues, prospective research directions are comprehensively summarized.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (93KB)</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 2"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148246787","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":"MoO2(acac)2-encapsulated in TS-1 zeolite catalyst for CO2 coupling with olefins to cyclic carbonates","authors":"Mengjiao XING , Jianyu TANG , Yindi ZHAO , Yushan CAI , Xingkai LIANG , Jinxia XIE , Tianfu ZHANG , Yiwen FANG , Suyao LIU","doi":"10.1016/S1872-5813(25)60628-1","DOIUrl":"10.1016/S1872-5813(25)60628-1","url":null,"abstract":"<div><div>The coupling of CO<sub>2</sub> with olefins to produce cyclic carbonates has emerged as an important research topic in sustainable chemistry, owing to its high atom economy and the wide applicability of the resulting products. However, this reaction faces a significant challenge due to the mismatch between the rates of the epoxidation and cycloaddition steps. In this work, a series of TS-1 zeolite catalysts encapsulating different amounts of molybdenum acetylacetonate were prepared through hydrothermal synthesis followed by post-treatment, with the aim of elucidating the rate balance between the epoxidation and cycloaddition steps and the underlying regulation mechanism. Characterization results show that the Mo species were present as highly dispersed molybdenum acetylacetonate complexes that were stably confined within the TS-1 framework. These complexes interact electronically with the tetra-coordinated Ti sites to form synergistic active centers, while imposing negligible effects on the zeolite structure and porosity. In the CO<sub>2</sub>-styrene coupling reaction, tuning the Mo loading enabled effective control over the epoxidation rate, thereby achieving an appropriate balance with the subsequent cycloaddition step. The optimized catalyst delivered excellent performance under mild conditions, with a styrene conversion of 83.4% and a selectivity of 75.3%, and also exhibited outstanding recyclability. Overall, this encapsulated catalyst successfully addresses the dual challenges of rate matching and active-site stability in CO<sub>2</sub>–olefin coupling, providing valuable insights for the rational design of efficient, durable bifunctional catalysts.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (122KB)</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 6"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148247307","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}
燃料化学学报Pub Date : 2026-06-01Epub Date: 2026-06-15DOI: 10.1016/S1872-5813(26)60695-0
Yuhua WANG , Hongguang LI , Ying XU , Yongli KOU , Mingxing ZHAO , Ning ZHAO
{"title":"Research progress in the catalysts for direct carbonylation of glycerol with CO2 to glycerol carbonate","authors":"Yuhua WANG , Hongguang LI , Ying XU , Yongli KOU , Mingxing ZHAO , Ning ZHAO","doi":"10.1016/S1872-5813(26)60695-0","DOIUrl":"10.1016/S1872-5813(26)60695-0","url":null,"abstract":"<div><div>The carbonylation of glycerol with carbon dioxide (CO<sub>2</sub>) to produce glycerol carbonate is an effective route for the resource utilization of CO<sub>2</sub>, which can not only alleviate the carbon emission but also enable the synthesis of value-added chemicals. As this reaction process suffers from low glycerol conversion due to the thermodynamic limitation, introducing a coupling agent besides an appropriate catalyst is necessary to achieve the efficient synthesis of glycerol carbonate. This article systematically reviews the recent research progress in the homogeneous catalysts (inorganic bases and organic bases) and heterogeneous catalysts (Zn, Cu, Ce, La, Mg, noble metal, modified zeolite, non-metallic materials, etc.) for the direct carbonylation of glycerol with CO<sub>2</sub>. The strategies such as metal oxide modification, support optimization, precursor selection, and construction of acidic-basic sites to enhance the catalytic performance are analyzed, while the effects of coupling agents (acetonitrile, adiponitrile, 2-cyanopyridine, MgCO<sub>3</sub>, CaC<sub>2</sub>, NaHCO<sub>3</sub>, etc.) are summarized. Among them, 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU), Zn(QTf)<sub>2</sub>, and metal composite oxides such as ZnO-CeO<sub>2</sub> have demonstrated promising catalytic performance in the carbonylation of glycerol with CO<sub>2</sub>. To enhance the efficiency for the carbonylation of glycerol with CO<sub>2</sub>, following measures should be taken in the future: developing organometallic complexes or composite metal oxides with highly dispersed active sites and specially tailored morphologies to modulate the surface area, pore size, and surface acidity/basicity of the catalysts; optimizing coupling agents or designing novel membrane reactors to improve the glycerol conversion; introducing polar solvents to improve the adsorption and activation capabilities of reactants and thereby to boost the catalytic activity. All these would provide valuable references for the catalyst design and reaction system optimization in the carbonylation of glycerol with CO<sub>2</sub>.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (96KB)</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 5"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148247306","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}
燃料化学学报Pub Date : 2026-06-01Epub Date: 2026-06-15DOI: 10.1016/S1872-5813(26)60648-2
Jie LUO , Shuhao ZHANG , Mei ZHONG , Zhenghua DAI , Yang LIU , Lijun JIN
{"title":"Effect of mixing modes on integrated process of co-pyrolysis of coal and biomass with CO2 reforming of methane to improve tar yield","authors":"Jie LUO , Shuhao ZHANG , Mei ZHONG , Zhenghua DAI , Yang LIU , Lijun JIN","doi":"10.1016/S1872-5813(26)60648-2","DOIUrl":"10.1016/S1872-5813(26)60648-2","url":null,"abstract":"<div><div>To investigate influence of mixing modes on integrated process of co-pyrolysis of coal and biomass with CO<sub>2</sub> reforming of methane (CP-CRM), Naomaohu coal (NMH) and elm (ELM) were chosen and three mixing modes (NMH/ELM, ELM/NMH and Blends) were examined over Ni-based reforming catalysts prepared by ball milling, and compared with co-pyrolysis under N<sub>2</sub> atmosphere (CP-N<sub>2</sub>). The results show that the products distribution was significantly affected by the mixing mode. Tar yield during CP-CRM under Blends model was higher than those of NMH/ELM and ELM/NMH, increasing by 35.29% compared with CP-N<sub>2</sub>. Meanwhile, light oil content in the tar was higher than those of NMH/ELM and ELM/NMH, but the pitch content was opposite. Phenols content in tar from Blends model was 19.52% higher than that of CP-N<sub>2</sub>, along with more free radicals in tar than that of CP-N<sub>2</sub>, which was mainly ascribed to the enhanced heat and mass transfer between raw material particles by mechanical mixing, making the co-pyrolysis process more complete. At the same time, the mechanical mixing was conducive to more efficient action of hydrogen-rich free radicals (such as ·H, ·CH<sub><em>x</em></sub>) on pyrolysis products, suppressing the secondary cracking and polymerization. The results provide a good guidance for regulating tar yield and compositions of the co-pyrolysis process.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (174KB)</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 12"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148246789","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}
燃料化学学报Pub Date : 2026-06-01Epub Date: 2026-06-15DOI: 10.1016/S1872-5813(26)60653-6
Qingzhou ZENG , Xuefeng HAN , Hongyu ZHAO , Jihui LI , Shucheng LIU
{"title":"Study on the coke deposition characteristics of hierarchical ZSM-5 zeolites with synergistic regulation of pore structure and temperature in benzene catalysis","authors":"Qingzhou ZENG , Xuefeng HAN , Hongyu ZHAO , Jihui LI , Shucheng LIU","doi":"10.1016/S1872-5813(26)60653-6","DOIUrl":"10.1016/S1872-5813(26)60653-6","url":null,"abstract":"<div><div>Carbon deposition caused by mass transfer limitations is a key challenge for traditional microporous ZSM-5 zeolites in the process of coal tar catalytic cracking. To address this problem, benzene was selected and used as a model compound for coal tar in the study. The parent ZSM-5 (NL-ZSM-5) was modified with tetraethylammonium hydroxide (TEAOH) to prepare hierarchical ZSM-5 zeolites with different mesopore sizes. A suite of characterization techniques (XRD, FT-IR, BET, TEM) were combined with fixed-bed experiments and molecular simulations to systematically investigate the effects of pore structure, acidic properties, and reaction temperature on the coking mechanism. The characterization results confirmed that mesopores were successfully introduced <em>via</em> the selective desilication with TEAOH, while the original MFI topological structure was retained. When TEAOH concentration is 0.4 mol/L (ZSM-5-C), the total pore volume increases from 0.24 to 0.43 cm<sup>3</sup>/g, and the amount of Brønsted acid (B acid) increased from 0.28 to 0.67 mmol/g. Moreover, the acid site accessibility was significantly improved. Analysis of catalytic experiments and carbon deposition indicate that carbon deposition is effectively inhibited in the hierarchical pore structure through a synergistic effect of “diffusion enhancement and adsorption-site regulation”. The coke amount of ZSM-5-C is 4.0%, which is only one-third of that of the pure microporous NL-ZSM-5 (11.9%). The results of molecular dynamics simulations confirm that the diffusion coefficient of benzene in the 3.0 nm mesopore model is an order of magnitude higher than that in the 2.0 nm model. Furthermore, the adsorption capacity decreases with the increasing in mesopore size, resulting in a shorter residence time of molecules within the pore channels. In addition, although increasing the temperature can enhance the molecular diffusion rate, it also exponentially intensifies surface condensation reactions (Arrhenius effect), which becomes the dominant driver of coke formation. The hierarchical pore structure, however, can effectively mitigate this negative effect. This research provide a theoretical basis for the design of high-efficiency and coke-resistant catalysts for coal tar conversion.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (181KB)</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 8"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148247235","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}
燃料化学学报Pub Date : 2026-06-01Epub Date: 2026-06-15DOI: 10.1016/S1872-5813(25)60615-3
Zhuangwei BAI , Anning ZHOU , Huaiqing ZHANG , Zhi ZHANG , Dong XI , Fuxin CHEN , Xinfu HE
{"title":"Study on the mechanism of enhanced synergistic effect in co-pyrolysis of Huangling coal and enzymatic hydrolysis lignin by hydrothermal pretreatment","authors":"Zhuangwei BAI , Anning ZHOU , Huaiqing ZHANG , Zhi ZHANG , Dong XI , Fuxin CHEN , Xinfu HE","doi":"10.1016/S1872-5813(25)60615-3","DOIUrl":"10.1016/S1872-5813(25)60615-3","url":null,"abstract":"<div><div>Co-pyrolysis of oil-rich coal and biomass is an effective approach to maximize the oil and gas production from oil-rich coal. To address the challenge of unclear mechanisms for the enhancement of synergistic effects during the co-pyrolysis of oil-rich coal and biomass, a Huangling coal (H) and an enzymatic hydrolysis lignin (E) were used as the research samples and the structural evolution of raw materials and those by hydrothermal pretreatment (HTP) was systematically investigated using a suite of techniques such as proximate analysis, ultimate analysis, scanning electron microscopy (SEM), inductively coupled plasma optical emission spectrometry (ICP-OES) and nuclear magnetic resonance (<sup>13</sup>C-NMR). Combined with fixed-bed pyrolysis experiments, the mechanism by which hydrothermal pretreatment strengthens the co-pyrolysis synergistic effect of the Huangling coal and enzymatic hydrolysis lignin blend was explored. The results indicate that after hydrothermal pretreatment, the oxygen content of the raw materials decreases, the pore structure becomes more developed, and the concentrations of inorganic metal ions (e.g., calcium, potassium, and iron) in the aqueous phase increase. The structure of Huangling coal and enzymatically hydrolyzed lignin undergoes significant modification, with the contents of aliphatic carbon, aromatic carbon and carbonyl/carboxyl carbon in enzymatically hydrolyzed lignin approaching those in Huangling coal, and with the bridge carbon ratio increasing, resulting in improved thermal stability for the enzymatically hydrolyzed lignin and a pyrolysis temperature approaching that of Huangling coal. By the hydrothermal pretreatment, the co-pyrolysis of Huangling coal and enzymatic hydrolysis lignin generally exhibit an increase in tar yields. When the H/E ratio is 8:2 and hydrothermal pretreatment is conducted for 24 h, the co-pyrolysis tar yield increases by 80.52%, with significant increases in the contents of aliphatic compounds and monocyclic aromatic hydrocarbons in the tar. Meanwhile, the yields of H<sub>2</sub>, CO and CH<sub>4</sub> in the gas increase by 5.47%, 10.98% and 9.27%, respectively, the generation of CO<sub>2</sub> and pyrolysis water is inhibited, and the pore structure of semi-coke is enriched. This is primarily attributed to the multiple mechanisms of “component interaction-structural modification-catalytic cracking” during hydrothermal pretreatment, which enhance the co-pyrolysis synergistic effect of the H/E blend. The findings provide theoretical support for developing the technologies to enhance the co-pyrolysis synergistic effect between oil-rich coal and biomass, and expand new avenues for the low-carbon, high-quality utilization of oil-rich coal.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (253KB)</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 10"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148247302","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}
燃料化学学报Pub Date : 2026-06-01Epub Date: 2026-06-15DOI: 10.1016/S1872-5813(26)60650-0
Hengwei WANG , Li QIU , Zefeng GE , Xinhua YUAN , Pu HUANG , Dongxu CUI , Jinjin LI , Dengyu CHEN
{"title":"Research progress on catalytic pyrolysis of biomass for aldehyde and ketone production","authors":"Hengwei WANG , Li QIU , Zefeng GE , Xinhua YUAN , Pu HUANG , Dongxu CUI , Jinjin LI , Dengyu CHEN","doi":"10.1016/S1872-5813(26)60650-0","DOIUrl":"10.1016/S1872-5813(26)60650-0","url":null,"abstract":"<div><div>Aldehydes and ketones, valuable oxygen-containing organic intermediates, play a fundamental role in the synthesis of fine chemicals, fuels and materials. Renewable carbon resources, represented by lignocellulosic biomass, enable the green production of platform carbonyl compounds such as furfural, 5-hydroxymethylfurfural, and low-molecular-weight aliphatic ketones <em>via</em> pyrolysis. This approach is of great significance for mitigating dependence on fossil resources and reducing carbon emissions. This review provides a systematic overview of recent progress in the catalytic pyrolysis of biomass for aldehyde and ketone production. First, the structural features, types, and biomass-derived origins of typical carbonyl platform molecules are summarized. Second, the decomposition pathways and intermediate evolution behaviors of cellulose-rich, hemicellulose-rich, and lignin-rich biomasses under non-catalytic pyrolysis conditions are compared, clarifying the influence of multicomponent synergistic effects on aldehyde and ketone formation. On this basis, particular emphasis is placed on the mechanistic roles and dominant reaction pathways of metal salts, metal oxides, and carbon-based catalytic systems in regulating key steps such as dehydration, decarbonylation, C−O/C−C bond cleavage, and skeletal rearrangement. Finally, the main challenges in biomass catalytic pyrolysis toward aldehydes and ketones are analyzed, including unclear catalyst structure-activity relationships, inadequate active site stability, and limited product selectivity. Future perspectives are proposed regarding the rational design of multilevel structured catalysts for efficient and controllable conversion, the integration of <em>in situ</em> characterization with multiscale simulation to elucidate reaction mechanisms, and the development of green scale-up and process integration strategies. This work aims to provide a systematic theoretical reference and research guidance for the high-value utilization of biomass and the conversion of renewable carbon resources.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (149KB)</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 4"},"PeriodicalIF":0.0,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148247305","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}