Journal of Analytical and Applied Pyrolysis最新文献

{"title":"Preparation of carbon nanotubes from organic solid wastes: A review","authors":"Song Cheng ,&nbsp;Chang Tao ,&nbsp;Haoyu Li","doi":"10.1016/j.jaap.2025.107240","DOIUrl":"10.1016/j.jaap.2025.107240","url":null,"abstract":"<div><div>The increasing accumulation of organic solid waste poses significant ecological and social challenges. Compared with the traditional treatment methods of organic solid wastes such as incineration and landfill, thermochemical conversion can produce high-value carbon materials and fuels under anaerobic conditions. Furthermore, the thermochemical conversion process facilitates the more efficient utilization of organic solid wastes while minimizing secondary pollution. The carbon nanotubes (CNTs) have become one of the most extensively studied and highly valued carbon materials due to unique electrical, mechanical, and physical properties. This review comprehensively summarizes recent advancements in the conversion of main organic solid wastes, including plastic, rubber, biomass, and pitch, into CNTs. It examines the prevalent preparation methods, key influencing factors (such as temperature, catalyst type and support, and reaction atmosphere), and the underlying growth mechanisms governing CNTs formation from these wastes. Additionally, it discusses the diverse application fields of waste-derived CNTs, such as energy storage, electromagnetic shielding, wastewater treatment, and functionally enhanced materials. By synthesizing this knowledge, the review aims to provide insights and guidance for future research and development efforts focused on advancing large-scale, cost-effective, and sustainable technologies for transforming organic solid wastes into high-value CNTs.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"192 ","pages":"Article 107240"},"PeriodicalIF":5.8,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144518728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Co-pyrolysis of hybrid pennisetum and food waste solid digestate: Synergistic effect, products distribution and kinetics","authors":"Yukun Luo ,&nbsp;Wenjie Mei ,&nbsp;Weihong Zhou ,&nbsp;Jing Gu ,&nbsp;Haoran Yuan ,&nbsp;Gaixiu Yang","doi":"10.1016/j.jaap.2025.107243","DOIUrl":"10.1016/j.jaap.2025.107243","url":null,"abstract":"<div><div>This study investigates the synergistic effect, product distribution and kinetics of co-pyrolysis of Hybrid Pennisetum (HP) and food waste solid digestate (FWSD) with different mixing ratios (1:0, 1:3, 1:1, 3:1 and 0:1). Thermogravimetric analysis (TGA) at four different heating rates revealed that the co-pyrolysis of HP and FWSD improved the pyrolysis behavior, and their interactions showed inhibitive and synergistic effects. The comprehensive pyrolysis index (CPI) demonstrated that FWSD enhances the thermochemical reactivity of the blends. Kinetic analysis using the distributed activation energy model (DAEM), Kissinger-Akahira-Sunose (KAS) method and Flynn-Wall-Ozawa (FWO) method showed lower activation energies (Ea) for FWSD (131–141 kJ/mol) than for HP (215–216 kJ/mol), indicating that FWSD facilitates HP pyrolysis. Thermodynamic parameters confirmed the non-spontaneous nature of the reactions. Volatile evolution was characterized via TG-FTIR-GC/MS, which detected key functional groups (O-H, C<img>O, C-H) and gases (CO, CO₂) Co-pyrolysis significantly improved bio-oil quality by increasing high-energy hydrocarbons while reducing oxygenated and nitrogenous compounds, a result of synergistic interactions that suppressed secondary cracking and enhanced deoxygenation. TG-GC/MS analysis identified hydrocarbons, acids, phenols, and nitrogenous compounds as dominant volatiles, with FWSD addition reducing aldehydes and phenols but increasing acids. These findings highlight the potential of HP-FWSD co-pyrolysis as an effective strategy for waste valorization and sustainable biofuel/biochemical production.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"192 ","pages":"Article 107243"},"PeriodicalIF":5.8,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Product characterization in pyrolysis and reduction zone of underground coal gasification with implication on CO2 utilization","authors":"Lin Xin ,&nbsp;Tongtong Diao ,&nbsp;Min Yang ,&nbsp;Maofei Niu ,&nbsp;Ruonan Wang ,&nbsp;Bowei Wang ,&nbsp;Yi Tan ,&nbsp;Xinying Li","doi":"10.1016/j.jaap.2025.107237","DOIUrl":"10.1016/j.jaap.2025.107237","url":null,"abstract":"<div><div>Underground coal gasification (UCG) is an energy-saving and environmentally friendly technology with significant potential for coal resource development. However, challenges remain in optimizing gasification efficiency and minimizing the environmental impact of three-phase products (gas, liquid, and solid). This study systematically characterizes these products in the pyrolysis and reduction zones of UCG. Twelve experiments were conducted using a tubular furnace, with products analyzed via FTIR, GC-MS, and gas chromatography. Results revealed that in the pyrolysis zone, CO₂ dominated at 300–400 °C, while CH₄ prevailed above 500 °C. In the reduction zone, CO was the primary gas-phase product, followed by CH₄. Solid-phase analysis showed higher conversion rates for aliphatic functional groups in the pyrolysis zone and higher relative contents of alcohols, ethers, and phenols in the reduction zone compared to acids, esters, and ketones. Liquid-phase tar transitioned from aliphatic hydrocarbons at 300 °C to aromatic hydrocarbons above 400 °C in the pyrolysis zone, while the reduction zone exhibited aromatic hydrocarbons at 300–500 °C and aliphatic hydrocarbons at 600–700 °C. Low-temperature pyrolysis increased CH₄ content in reduction gas-phase products and reduced carboxylic acids, esters, and ketones in solid-phase pollutants. Direct CO₂ injection at 900 °C significantly enhanced CO production, highlighting the potential for CO₂ utilization. This study provided a comprehensive understanding of UCG product characteristics and reaction mechanisms, offering valuable insights for improving gasification efficiency and advancing sustainable UCG development.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"192 ","pages":"Article 107237"},"PeriodicalIF":5.8,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144513602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of pyrolysis temperature and heating rate on the physicochemical properties of alkali lignin-derived biochar: A comparative study of fast and slow pyrolysis","authors":"Yuanbo Song ,&nbsp;Jiawei Tan ,&nbsp;Mengyu Jin ,&nbsp;Zhe Liu ,&nbsp;Jianfei Zhu ,&nbsp;Mohamed E.A. El-sayed ,&nbsp;Islam A. Abdelhafeez ,&nbsp;Yalei Zhang ,&nbsp;Zheng Shen","doi":"10.1016/j.jaap.2025.107236","DOIUrl":"10.1016/j.jaap.2025.107236","url":null,"abstract":"<div><div>This study examined how pyrolysis temperature and heating rate together influence the physicochemical properties and structural evolution of alkali lignin-derived biochar during high-temperature pyrolysis (800–1000 °C). Two pyrolysis methods were employed: fast pyrolysis (250–300 °C/s) via flash joule heating and slow pyrolysis (10 °C/min) using a tubular furnace. Alkali lignin was selected as the model compound. A comprehensive set of characterization techniques was applied, including elemental analysis, FTIR, Raman spectroscopy, XRD, XPS, particle size and zeta potential analysis, BET surface area measurements, and electrical conductivity testing. Results showed that fast pyrolysis produced a high biochar yield of 52 % at 1000 °C with minimal energy consumption (0.0026 kW·h), mainly due to the cleavage of alkyl and partial methoxy groups. In contrast, slow pyrolysis promoted deeper aromatization and graphitization, resulting in biochar with a larger specific surface area (763.06 m²/g) and higher conductivity (15.94 S/cm), attributed to the extensive cleavage of methoxy and phenolic hydroxyl groups. Mechanistic analysis revealed that temperature and heating rate jointly induce asynchronous pyrolysis pathways. Fast heating accelerates volatile release and aliphatic bond cleavage, while slow heating facilitates gradual removal of functional groups and development of aromatic structures, ultimately leading to distinct differences in carbon structure and properties. This study underscores the critical role of both heating rate and temperature in tailoring biochar structure and performance. It provides theoretical insights for optimizing biomass pyrolysis toward energy-efficient and application-oriented carbon material production.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"191 ","pages":"Article 107236"},"PeriodicalIF":5.8,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144510965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pretreatment-assisted catalytic pyrolysis for enhanced levoglucosenone production from waste cellulose acetate","authors":"Kai Li,&nbsp;Wan-zhao Huang,&nbsp;Shi-guan Yang,&nbsp;Jia-hao Yu,&nbsp;Qi Niu,&nbsp;Li Zhao,&nbsp;Ying Mo,&nbsp;Yu-han Fan,&nbsp;Qiang Lu","doi":"10.1016/j.jaap.2025.107234","DOIUrl":"10.1016/j.jaap.2025.107234","url":null,"abstract":"<div><div>This study developed an innovative method for directional degradation and valorization of waste cellulose acetate (CA) through pretreatment followed with catalytic pyrolysis, enabling the efficient and high-value recovery of CA. A synergistic pretreatment with ethanol and NaOH was employed to modify the molecular structure of CA feedstock. Coupled with phosphoric acid-activated carbon (PAC) catalyzed pyrolysis, the pretreatment-dependent alternation in CA’s physicochemical properties and their effects on pyrolysis to prepare levoglucosenone (LGO) were systematically investigated. The results indicated that the ethanol-NaOH synergistic pretreatment selectively removed the acetyl substituents in CA, exposing more cellulose characteristics, and facilitated the swelling of CA. These modifications enhanced the suitability of CA for selective LGO production. In pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) experiments, the highest yield of LGO from pretreated CA reached 17.84 wt%, significantly exceeding the 2.67 wt% yield gained from untreated CA. This study laid a solid foundation for the efficient and high-value recycling of waste CA.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"191 ","pages":"Article 107234"},"PeriodicalIF":5.8,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144480880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Selective production of light olefins and aromatics via catalytic fast pyrolysis of biomass over attapulgite and Zn/ZSM-5 cascade catalyst","authors":"Yansheng Huang ,&nbsp;Jinhong Zhang ,&nbsp;Daniel Takyi Sekyere ,&nbsp;Chengbiao Wang ,&nbsp;Ronglong Guo ,&nbsp;Jiming Liu ,&nbsp;Hongbi Zhang ,&nbsp;Miao Wu ,&nbsp;Yuanyu Tian ,&nbsp;Weisheng Liu","doi":"10.1016/j.jaap.2025.107233","DOIUrl":"10.1016/j.jaap.2025.107233","url":null,"abstract":"<div><div>Attapulgite (ATP) and Zn/ZSM-5 cascade catalysis offers a dual advantage in biomass pyrolysis by significantly reducing catalyst procurement cost while enhancing product selectivity. In this study, a series of ATP-based catalysts (ATP/25, ATP/600, HATP/25, HATP/600, Zn/HATP/600, Cu/HATP/600, and La/HATP/600) and their cascade combinations with Zn/ZSM-5 (ATP&amp;Zn/ZSM-5 cascade catalysts) were evaluated for the catalytic fast pyrolysis of pine sawdust via Py-GC/MS. ATP catalysts promoted the formation of aliphatic hydrocarbons (AHCs) and furans, with Cu/HATP/600 showing the highest deoxygenation efficiency (oxygenates reduced from 99.66 % to 53.24 %) and achieving 45.56 % AHCs selectivity, including 31.13 % propene and 12.93 % propane. The cascade system outperformed projections in aromatic hydrocarbon production, with BTX (benzene, toluene, xylene) selectivity increasing by over 10 % relative to the estimated values, while minimizing bulky oxygenated compounds, and suppressing nitrogenous compounds. The Cu/HATP/600&amp;Zn/ZSM-5 cascade system achieved 49.73 % aromatics (30.52 % BTX) and 27.31 % AHCs. Compared with Zn/ZSM-5 alone, the propene selectivity increased from 8.39 % to 17.93 %, while PAHs reduced from 14.24 % to 8.92 %. HATP/25&amp;Zn/ZSM-5, delivered comparable results (52.19 % aromatics, 31.73 % BTX, and 23.40 % AHCs). These findings demonstrate that high performance can be achieved at approximately half the cost of catalyst acquisition compared to conventional zeolite-based systems, positioning ATP&amp;Zn/ZSM-5 cascade catalysis as an efficient approach for converting lignocellulosic biomass into high-value chemicals with industrial relevance.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"192 ","pages":"Article 107233"},"PeriodicalIF":5.8,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144513591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing light tar production from tar-rich coal through low-temperature oxidation-assisted pyrolysis","authors":"Chuchu Wang,&nbsp;Zhibing Chang,&nbsp;Yuliang Ma,&nbsp;Chao Wang,&nbsp;Hansen Huang,&nbsp;Xinyue Wang,&nbsp;Shuqin Liu","doi":"10.1016/j.jaap.2025.107232","DOIUrl":"10.1016/j.jaap.2025.107232","url":null,"abstract":"<div><div>Reactive thermal heating, which leverages the exothermic reaction of coal seam organic matter, significantly reduces pyrolysis energy consumption and shows potential for in-situ pyrolysis of tar-rich coal. This study investigated the characteristics of oxidation-assisted pyrolysis using a fixed-bed reactor and analyzed the effects of heating temperature and oxygen flow rate on pyrolysis product distribution and composition. Results indicate that at heating temperatures of 280 ℃, 320 ℃, and 360 ℃, tar yields initially rose and then declined with increasing oxygen flow rates, peaking at 5.36 %, 5.87 %, and 7.80 %, respectively, under an oxygen flow rate of 150 mL/min. H₂ and CH₄ yields followed a similar trend, with maximum values of 18.25 mL/g (H₂) and 25.68 mL/g (CH₄) achieved at 360 ℃ and 150 mL/min oxygen flow. Higher oxygen flow rates enhanced self-heating effects, raising coal temperatures and promoting pyrolysis to generate tar and gas. However, excessive oxygen led to oxidative consumption of these products or their precursors. At 360 ℃, heavy tar fractions (boiling point &gt;300 ℃) and phenolic compounds first increased and then declined with rising oxygen flow, reaching maxima of 21.04 % and 43.81 % at 150 mL/min. The combined content of light (boiling point &lt;170 ℃) and medium (boiling point 170–300 ℃) fractions in oxidation-assisted pyrolysis tar reached or exceeded 80 %, significantly higher than the 50 % observed in pyrolysis under a N₂ atmosphere at 500 ℃. This was attributed to the lightening effect caused by step-wise condensation and cracking of heavy components. In the engineering application of in-situ pyrolysis for tar-rich coal, the permeability penetration mode enhances tar lightening effects. However, key challenges persist, including heterogeneous coal seam fractures, tar condensation-induced channel blockages, and precise oxygen concentration control in combustion zones.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"191 ","pages":"Article 107232"},"PeriodicalIF":5.8,"publicationDate":"2025-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144365040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of inherent minerals on isothermal pyrolysis of oil shale: Characteristics and kinetics","authors":"Hong Zhang ,&nbsp;Xin Jia ,&nbsp;Junhong Wu ,&nbsp;Yuhui Zhang ,&nbsp;Xuejing Liu ,&nbsp;Guangwen Xu","doi":"10.1016/j.jaap.2025.107231","DOIUrl":"10.1016/j.jaap.2025.107231","url":null,"abstract":"<div><div>Clarifying the effects of inherent minerals on gas release and kinetics during isothermal pyrolysis is essential for optimizing reactor design and operation, especially when processing oil shale with varying ash content. Isothermal pyrolysis experiments were conducted in a micro-fluidized bed reaction analyzer (MFBRA) using raw, decarbonated (HCl-treated), and demineralized (HCl-HF-treated) oil shale samples. The results demonstrate that the total gas yield from raw oil shale is significantly higher than that from decarbonated and demineralized oil shale. Moreover, the disparity in gas yields becomes more pronounced as the temperature increases. At 800 °C, the gas yield ratio between raw and demineralized oil shale reaches up to 2.1 times, substantially higher than values reported for other low-ash feedstocks in the literature. This finding suggests that secondary reactions are particularly intensified for high-ash oil shale at elevated temperatures. Additionally, the apparent activation energies (Ea) determined using MFBRA were 53 kJ/mol, 33 kJ/mol, and 28 kJ/mol for raw, decarbonated, and demineralized oil shale, respectively. These findings indicate that the presence of inherent minerals leads to an increase in Ea, which is different from the results obtained from TGA (carbonates increase Ea versus silicates decrease Ea). Consequently, kinetic parameters derived from MFBRA more accurately reflect the actual reactions occurring in isothermal pyrolyzers.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"191 ","pages":"Article 107231"},"PeriodicalIF":5.8,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144471825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation and characterization of black garlic peels-derived activated carbon to improve H2S adsorption at room-temperature","authors":"Dengle Duan ,&nbsp;Shuo Xu ,&nbsp;Yingwei Zhou ,&nbsp;Hechao Mo ,&nbsp;Wenhua Yang ,&nbsp;Yayun Zhang ,&nbsp;Roger Ruan","doi":"10.1016/j.jaap.2025.107229","DOIUrl":"10.1016/j.jaap.2025.107229","url":null,"abstract":"<div><div>The carbon-based catalysts have been demonstrated as effective desulfurizers for treating H₂S emission problems at room temperature. Herein, the black garlic peel-based activated carbon catalysts (BGPACs) are prepared for H₂S desulfurization at room-temperature for the first time. Results demonstrate that the BGPACs exhibit excellent selectivity for desulfurization of H₂S and can be used as a promising catalyst for H₂S oxidation. The carbonization temperature of 800 ℃ is conducive to produce activated carbon with roomy specific surface area and capacious pore volume, which could offer more exposed reaction sites for desulfurization reaction. The breakthrough sulfur capacity of BGPACs prepared by a simple carbonization can reach a satisfied value of 0.21 g/g at room temperature. Besides, further characterizations and experiments are carried out to infer possible reaction mechanism for H₂S desulfurization. This work could offer crucial insights into the high performance for desulfurization at room temperature and thus provides an innovative approach for the efficient utilization of black garlic peel.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"191 ","pages":"Article 107229"},"PeriodicalIF":5.8,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144330838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of core–shell structured HZSM-5@silicalite-1 catalyst for production of light aromatics from catalytic pyrolysis of torrefied poplar wood","authors":"Liang Zhu ,&nbsp;Wei Cai ,&nbsp;Yanhui Shi ,&nbsp;Chuang Xing ,&nbsp;Kaige Wang ,&nbsp;Zhongqing Ma ,&nbsp;Qiang Lan","doi":"10.1016/j.jaap.2025.107230","DOIUrl":"10.1016/j.jaap.2025.107230","url":null,"abstract":"<div><div>Catalytic fast pyrolysis (CFP) of torrefied poplar wood was investigated to enhance light aromatics production using a core-shell hierarchical HZSM-5@Silicalite-1 catalyst. In this work, torrefaction deoxygenation pretreatment (TDP) significantly reduced oxygen content in poplar wood, with optimal deoxygenation achieved at 260 ºC, yielding torrefied solid product with enhanced pyrolysis reactivity. The core-shell hierarchical HZSM-5@Silicalite-1 catalyst was synthesized via epitaxial growth and characterized by BET, NH₃-TPD, SEM, and TEM, exhibited a micro-mesoporous structure that suppressed external coking and prolonged intermediate diffusion, thereby improving aromatics selectivity. CFP systematic optimization revealed that the yield of BTX (5.56 × 10⁸ a.u./mg) and total aromatics (3.15 × 10⁸ a.u./mg) were maximized with a catalyst-to-feedstock ratio of 4:1 and CFP temperature of 800 ºC, due to the intensified devolatilization, low mass transfer resistance, and efficient Brønsted acid catalysis for the deoxygenation/aromatization of pyrolysis intermediates. This study demonstrated that coupling moderate torrefaction with tailored core-shell catalysts synergistically could enhance the production of BTX, offering a viable strategy for upgrading biomass-derived biofuels.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"191 ","pages":"Article 107230"},"PeriodicalIF":5.8,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144313366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}