Journal of Analytical and Applied Pyrolysis最新文献

{"title":"Synergistic microwave modulation of tobacco straw and LDPE co-pyrolysis product distribution by HZSM-5/graphite felt composite catalyst: Directed synthesis of monocyclic aromatic hydrocarbons and inhibition of polycyclic aromatic hydrocarbons","authors":"Zhaosheng Yu ,&nbsp;Huirong Ni ,&nbsp;Wen Teng ,&nbsp;Gao Shen ,&nbsp;Xikui Zhang ,&nbsp;Xiaoqian Ma","doi":"10.1016/j.jaap.2025.107374","DOIUrl":"10.1016/j.jaap.2025.107374","url":null,"abstract":"<div><div>Catalytic fast pyrolysis is a pivotal technology for achieving high-value utilization of biomass. However, the traditional HZSM-5 zeolite catalyst faces significant challenges, including low mass transfer efficiency, poor product selectivity, and difficulty in suppressing the formation of polycyclic aromatic hydrocarbons (PAHs). This study proposes a novel synergistic strategy of HZSM-5/ graphite felt (GF) composite catalyst and microwave energy fields for the directional modulation of co-pyrolysis products from tobacco straw (TS) and low-density polyethylene (LDPE). The experimental results demonstrated that the redistribution of acidic sites on the composite catalyst (with the Brønsted/Lewis acid ratio decreasing from 0.87 to 0.33) combined with the macroporous mass transfer characteristics of GF significantly enhanced the selectivity of monocyclic aromatic hydrocarbons (MAHs). Simultaneously, the high thermal conductivity and wave-absorbing properties of GF optimized the distribution of the microwave heat field, effectively suppressing PAHs condensation reactions induced by local overheating. When the mass ratio of HZSM-5 loading to feedstock was 0.8:1 the total aromatic selectivity reached 83.24 %, with MAHs accounting for 41.47 % (6.4 times higher than that of HZSM-5), while the content of PAHs decreased from 58.3 % to 42.94 %. Furthermore, although the catalytic activity of the HZSM-5/GF composite catalyst decreased notably after five consecutive experimental cycles, it remained superior to that of pure HZSM-5. This work elucidates the synergistic effect of \"pore-acid-microwave\" and provides a theoretical foundation and technical pathway for product regulation and large-scale application of biomass catalytic pyrolysis.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"193 ","pages":"Article 107374"},"PeriodicalIF":6.2,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046396","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":"Effects of pre-treatment on product characteristics and bromine behavior during pyrolysis of waste printed circuit boards for resource recovery","authors":"Bibari Boro,&nbsp;Pankaj Tiwari","doi":"10.1016/j.jaap.2025.107375","DOIUrl":"10.1016/j.jaap.2025.107375","url":null,"abstract":"<div><div>Pyrolysis presents a viable route for resource recovery from waste printed circuit boards (WPCBs); however, the presence of brominated flame retardants (BFRs) pose challenges due to their toxicity and potential to contaminate recovered products. This study investigates the influence of pre-treatment methods-acid leaching and Soxhlet extraction on the pyrolysis behavior of WPCBs. Four feedstocks were evaluated: raw WPCB (RW), nonmetallic fraction post-acid leaching (NM), and their Soxhlet-treated counterparts (RW-sox, NM-sox). Pyrolysis was conducted at 500 °C, with a 30 °C/min heating rate and a 156 min hold time. FTIR and ¹H NMR analyses confirmed the aromatic nature of pyrolytic oil, while GC-SimDist indicated a predominance of light hydrocarbons (C₇-C₁₁) across all feedstocks. GC-MS analysis revealed that metallic constituents in RW and RW-sox suppressed phenol formation and elevated p-cumenol concentration. However, Soxhlet extraction had minimal effect on oil composition. Gas chromatography (GC-TCD/FID) showed major gaseous products to be H₂, CO, CO₂, and minor light hydrocarbons (C₁-C₅), with higher H₂ and CO yields associated with metal-containing feedstocks. Bomb calorimeter-ion chromatography analysis indicated that acid leaching promoted bromine volatilization, increasing Br transfer to the liquid and gas phases while reducing its retention in char. These findings highlight the potential of pre-treatment strategies to optimize pyrolysis for higher resource recovery while mitigating environmental impact from brominated compounds.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"193 ","pages":"Article 107375"},"PeriodicalIF":6.2,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046344","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":"Strategic way for peach seed valorisation by integrating thermochemical approaches: Transesterification and pyrolysis","authors":"Jung-Hun Kim ,&nbsp;Gyeongnam Park ,&nbsp;Taewoo Lee ,&nbsp;Jaewon Lee ,&nbsp;Eilhann E. Kwon","doi":"10.1016/j.jaap.2025.107377","DOIUrl":"10.1016/j.jaap.2025.107377","url":null,"abstract":"<div><div>This study aimed to maximise carbon utilisation in the biodiesel (BD) production from transesterification of oil-bearing seed and subsequent pyrolytic valorisation of defatted biomass waste. Peach seed (PS) was selected as a model for the oil-bearing seed. After extracting PS oil (PSO) (56.3 wt% of PS), the defatted PS (DPS) was subjected to CO₂-assisted pyrolysis over a nickel catalyst, resulting in enhanced conversion of DPS into syngas, particularly CO. The homogeneous reaction between CO₂ and VM liberated from DPS led to reduced CO₂ formation and its oxidation with VM, resulting in enhanced CO evolution. Compared with pyrolysis under inert N₂ conditions, syngas production increased by 39.0 % in the presence of CO₂. PSO was converted into BD via thermally induced transesterification, yielding superior BD yield compared to alkali-catalysed conversion. Indeed, the BD yield from thermally induced transesterification was 98.15 wt%, whereas the BD yield from alkali-catalysed transesterification was 87.10 wt%. To further enhance the transesterification kinetics, biochar produced from the pyrolysis of DPS served as a catalyst. This approach resulted in a BD yield of 98.34 wt% at 340 ˚C. CO₂ mitigation potential was evaluated by integrating the pyrolysis of DPS with the BD production process from PSO.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"193 ","pages":"Article 107377"},"PeriodicalIF":6.2,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145020399","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":"Pyrolysis of pulp and paper mill sludge: Mechanistic effects of process conditions and feldspar catalysis on product formation and biochar carbon permanence","authors":"Hanifrahmawan Sudibyo ,&nbsp;Gabriela Durán-Jiménez ,&nbsp;Yanni Sudiyani ,&nbsp;Arsi Cahyani ,&nbsp;Joni Jupesta ,&nbsp;Brilian Ryan Sadewo ,&nbsp;Budhijanto Budhijanto ,&nbsp;Arief Budiman","doi":"10.1016/j.jaap.2025.107376","DOIUrl":"10.1016/j.jaap.2025.107376","url":null,"abstract":"<div><div>We investigated the pyrolysis of pulp and paper mill sludge (PPMS) as a carbon dioxide removal strategy by examining the effects of feedstock moisture (0 and 30 wt%), temperature (400–800 °C), and ex-situ catalysis using feldspar minerals on product yields, carbon and nitrogen recovery, chemical speciation, and biochar carbon stability. Product distribution was temperature-dependent: biochar was favored at low temperatures, biocrude at intermediate temperatures, and syngas at high temperatures. Without catalysis, wet PPMS produced more biochar and CO₂-rich syngas but less biocrude and aqueous coproducts compared to dry PPMS. While feldspar catalysts had negligible effects on biochar yield due to the ex-situ configuration, Na-feldspar—with greater Lewis acidity than K-feldspar—significantly enhanced biocrude yield and increased methane and hydrogen content in the syngas, particularly from wet PPMS. These improvements originated from the activated CO₂ methanation, water–gas shift, and hydrocarbon-forming gas-phase reactions, e.g., dimerization and telomerization. Nitrogen distribution varied with temperature: it was retained in biochar at low temperatures and migrated to the aqueous phase as amines and pyrroles at higher temperatures. Shrinking core kinetic modeling of biochar oxidation, supported by elemental analysis, solid-state ¹ ³C NMR, and reflectance microscopy, revealed the formation of inertinitic, graphitic-like carbon structures. Biochars produced at higher temperatures exhibited increased oxidation resistance, with extrapolated half-lives from 0.25 to 1 and from 1 to 5 million years for wet-derived and dry-derived samples, confirming geological-scale carbon stability. These findings underscore the potential of optimized pyrolysis conditions for producing stable biochar while enhancing the energy value of co-produced biocrude and syngas.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"193 ","pages":"Article 107376"},"PeriodicalIF":6.2,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046397","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":"Research progress on improving lignin pyrolysis efficiency for the production of phenolic compounds by deep eutectic solvent pretreatment: A review","authors":"Chenzhou Wang,&nbsp;Leyi Sun,&nbsp;Mingjin Wang,&nbsp;Yanqin Huang,&nbsp;Kai Li,&nbsp;Qiang Lu","doi":"10.1016/j.jaap.2025.107370","DOIUrl":"10.1016/j.jaap.2025.107370","url":null,"abstract":"<div><div>Lignin, the most dominant source of renewable aromatic feedstock, exhibits potential for producing bio-based phenolic compounds through fast pyrolysis. The utilization of deep eutectic solvent (DES) for lignin extraction and the pyrolysis of DES-pretreated lignin (DESPL) for phenols production has attracted considerable scholarly interest in recent years. Nonetheless, a comprehensive review focusing on the production of phenolic compounds from DESPL pyrolysis has yet to be published, and the application of this integrated technology is still ongoing. This review aims to fill this gap by elucidating recent advancements in the fractionation of DESPL, with particular emphasis on the influence of DES on the production of phenolic compounds. The performance of recyclable DES in lignin fractionation and the structural properties of DESPL were summarized. Furthermore, the pyrolysis mechanism of lignin was discussed and the potential of DESPL for phenols production was explored. Additionally, relevant computational simulations were systematically summarized to illustrate the enhancement effects of DES pretreatment. This review will provide new insights into the fractionation and valorization of lignin through the application of renewable DES.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"193 ","pages":"Article 107370"},"PeriodicalIF":6.2,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145020400","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":"In-situ detection of phosphorus-containing gas phase species at steady-state pyrolysis of flame retardant coated cotton","authors":"Niklas Tomasik ,&nbsp;Raphael Otto ,&nbsp;Thomas Mayer-Gall ,&nbsp;Burak Atakan","doi":"10.1016/j.jaap.2025.107371","DOIUrl":"10.1016/j.jaap.2025.107371","url":null,"abstract":"<div><div>This work presents a novel experimental approach for investigating the gas-phase activity of flame retardants on textiles and provides initial results for pristine and DOPO <strong>(</strong>C₁₂H₉O₂P<strong>)-</strong>coated cotton fabrics. Steady-state pyrolysis was achieved by continuously moving fresh, unpyrolyzed textile into a locally fixed pyrolysis zone, maintaining a consistent degree of pyrolysis. The textile was pyrolyzed using a hot argon flow at temperatures ranging from 200 to 700 °C. Validation of chemical steady-state conditions was first carried out by analyzing the surface composition of the textile as a function of position using ATR-FTIR spectroscopy. After confirming these conditions, pyrolytic gases were analyzed via electron impact mass spectrometry at an ionization energy of 18 eV. The first system investigated was pristine cotton, where temperature-dependent quantities of selected hydrocarbons were analyzed and compared with literature data. The results indicate that the novel setup yields promising results, as expected pyrolysis products were successfully detected. The first heterogeneous flame retardant textile system analyzed was DOPO/cotton. Temperature dependent profiles of key hydrocarbons were recorded, and their potential influence on the gas-phase mechanism was discussed. To further assess the validity of the proposed mechanism, comparisons were made with literature-reported mechanisms of DOPO derivatives applied to cotton, revealing certain similarities. Additionally, phosphorus-containing species were detected under specific conditions, providing evidence of limited gas-phase activity. Finally, based on the experimental data, the effectiveness of DOPO as a flame retardant for cotton was evaluated. The results suggest that DOPO exhibits limited gas-phase activity in this system, emphasizing the need for alternative phosphorus-based FRs with enhanced efficiency.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"193 ","pages":"Article 107371"},"PeriodicalIF":6.2,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046411","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":"A novel high-efficiency pyrolysis strategy for recycling carbon fibers and interface strengthening of carbon fibers reinforced epoxy resin composites","authors":"Hui Xu ,&nbsp;Yong Li ,&nbsp;Yaqi Ge ,&nbsp;Chuansheng Wang ,&nbsp;Fengfu Yin ,&nbsp;Yao Xiao","doi":"10.1016/j.jaap.2025.107373","DOIUrl":"10.1016/j.jaap.2025.107373","url":null,"abstract":"<div><div>In response to the difficulties in recycling and degradation of carbon fiber reinforced epoxy resin (CF/ER) composites and the inability to recycle high-value carbon fibers, this study proposed a new high-efficiency pyrolysis method of CF/ER to achieve clean recycling of CF, evaluated the surface properties of recycled CF and its interfacial bonding properties and mechanical strength of recycled CF/ER composites, and summarized the high-efficiency pyrolysis mechanism of CF/ER according to the pyrolysis products. XRD and Raman indicated that the microcrystalline structure of the recycled CF was slightly damaged but the physical structure was basically maintained. FTIR, XPS, SEM showed that the oxygen-containing functional groups and the surface roughness of recycled CF increased, AFM showed that the interfacial layer between recycled CF and ER thickened, and the appropriately enlarged interfacial layer was conducive to the external stress transfer from the CF to the ER, and impeded the expansion of the microcracks. When the CF content is 2 %, 5 %, and 10 %, the change rates of tensile and flexural strengths of recycled CF/ER are between 8 % and 12 %. This paper provided a fast and sustainable recycling method for CF/ER composites, which had certain theoretical significance and engineering application potential.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"193 ","pages":"Article 107373"},"PeriodicalIF":6.2,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145004463","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":"A study of pyrolysis reaction mechanisms for two different sustainable aviation fuels certificated by Civil Aviation Administration of China","authors":"Lei Sun ,&nbsp;Fangliang Wang ,&nbsp;Yecheng Song ,&nbsp;Kun Wang ,&nbsp;Desheng Qin ,&nbsp;Zekun Zheng ,&nbsp;Yong Huang","doi":"10.1016/j.jaap.2025.107369","DOIUrl":"10.1016/j.jaap.2025.107369","url":null,"abstract":"<div><div>Sustainable aviation fuel (SAF), particularly hydrotreated esters and fatty acids (HEFA) derived from waste cooking oil (WCO), is a realistic and potential pathway to realize the target of “Fly Net Zero” for the aviation industry. To develop reaction mechanisms of SAF suitable for combustor simulations, two different SAFs (named SAF1 and SAF2) synthesized from WCO and certificated by Civil Aviation Administration of China (CAAC) were investigated. The detailed compositional analyses of these two SAFs were executed via gas chromatography-mass spectrometry (GC-MS) technique, and the results were used to construct surrogate models. The pyrolysis and oxidation experiments were performed in a flow reactor at 1000 K and an atmospheric pressure to obtain the speciation data for the two SAFs. The Hybrid Chemistry (HyChem) approach was employed to develop reaction mechanisms of the two SAFs. A multi-objective genetic algorithm, NSGA-II, was utilized to determine the three Arrhenius coefficients of the seven lumped reactions. Both HyChem models were successfully validated by the experimental data. The speciation data and global combustion parameters were accurately predicted by HyChem models for these two SAFs. Finally, sensitivity analysis revealed the similar effects of the seven lumped reactions on ignition delay time (IDT) for the two SAFs. R2 (fuel + H), R4 (fuel + OH), and R5 (fuel + O₂) play important roles in the system reactivity, while R6 (fuel + HO₂) and R7 (fuel + O) have negligible influence on IDT predictions for all tested conditions.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"193 ","pages":"Article 107369"},"PeriodicalIF":6.2,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145010772","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":"Research on the co-pyrolysis characteristics of oil sludge and wheat straw","authors":"Fangshuo Shi,&nbsp;Jun Zhao,&nbsp;Zihui Shen,&nbsp;Chengcheng Yang,&nbsp;Shuzhong Wang","doi":"10.1016/j.jaap.2025.107364","DOIUrl":"10.1016/j.jaap.2025.107364","url":null,"abstract":"<div><div>Co-pyrolysis of oily sludge with biomass represents an efficient and resource-recycling strategy for waste valorization. However, conventional pyrolysis of oily sludge alone often suffers from low process efficiency, poor product quality, and significant secondary pollution risks. To address these limitations, this study investigates the co-pyrolysis behavior and synergistic effects between oil sludge (OS) and wheat straw (WS), aiming to enhance the efficiency of waste-to-energy conversion. The analysis includes TG studies and product yield distribution under varying thermal conditions (500–800°C). The results reveal that the co-pyrolysis of OS and WS significantly improves the pyrolysis efficiency compared to individual pyrolysis, especially in enhancing the yield of low molecular weight pyrolysis oils. Specifically, the addition of WS reduces the activation energy of OS pyrolysis and facilitates the production of aromatic compounds, particularly at a 1:1 mixture ratio. Furthermore, this study demonstrates pronounced synergistic effects during co-pyrolysis, with optimal synergy observed at elevated temperatures (&gt;650°C) under low WS blending ratios. These findings contribute to the development of sustainable waste treatment methods, combining waste oil and biomass for enhanced energy recovery and reduced environmental impact.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"193 ","pages":"Article 107364"},"PeriodicalIF":6.2,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046400","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":"Modeling the influence of hierarchical ZSM-5 pore architecture on global reaction: Predictive simulation of n-pentane catalytic cracking for light olefin production","authors":"Yifan Xiong ,&nbsp;Yajie Tian ,&nbsp;Shuaishuai Zhou ,&nbsp;Xin Yu ,&nbsp;Hao Yang ,&nbsp;Qian Li ,&nbsp;Guozhu Liu","doi":"10.1016/j.jaap.2025.107362","DOIUrl":"10.1016/j.jaap.2025.107362","url":null,"abstract":"<div><div>This study establishes ZSM-5 zeolite as a pivotal catalyst for naphtha catalytic cracking, where pore structure modulation critically governs high-selectivity olefin generation. Employing hierarchical ZSM-5 catalysts with adjustable micro/mesopore ratios synthesized via a dual-template approach, we developed a global reaction model incorporating catalyst pore property parameters to predict ethylene (C₂H₄) and propylene (C₃H₆) yields from cracking of <em>n</em>-pentane. First, the mathematical formalism of the global reaction model was derived from product distributions, explicitly correlating zeolite pore characteristics with reaction kinetics. Subsequently, six pore descriptors were evaluated across 28 combinatorial scenarios. The model identified the optimal parameter ensemble mesoporous surface area (<em>S</em>_{<em>meso</em>}), total surface area (<em>S</em>_<em>BET</em>), pore volume ratio (<em>V</em>_{<em>meso</em>}/<em>V</em>_{<em>total</em>}) governing light olefin yields with &lt; 3.51 % deviation from experimental data. Model predictions further revealed that high <em>V</em>_{<em>meso</em>}/<em>V</em>_{<em>total</em>} ratios were essential for maximizing <em>n</em>-pentane co<em>n</em>version to light olefins, with C₂H₄ yield exhibiting differential sensitivity to <em>S</em>_{<em>meso</em>} and C₃H₆ yield to <em>S</em>_<em>BET</em>. This pore-integrated global model provides a foundational framework for the rational design of hierarchical ZSM-5 catalysts targeting high-efficiency naphtha cracking.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"193 ","pages":"Article 107362"},"PeriodicalIF":6.2,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145010773","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}