Journal of Analytical and Applied Pyrolysis最新文献

{"title":"Optimization of process parameters and evaluation of fuel properties of agricultural waste-derived hydrochar catalyzed by citric acid based on response surface methodology","authors":"Yan Pan ,&nbsp;Qing Wang ,&nbsp;Xinmin Wang ,&nbsp;Jingru Bai ,&nbsp;Shuang Wu ,&nbsp;Huaiyu Zhou ,&nbsp;Dongyang Wu ,&nbsp;Shengming Zhang","doi":"10.1016/j.jaap.2025.107368","DOIUrl":"10.1016/j.jaap.2025.107368","url":null,"abstract":"<div><div>Hydrothermal carbonization (HTC) enables the valorization of agricultural waste-derived through resource recovery and the synthesis of alternative solid fuels. In this study, response surface methodology (RSM) was employed to evaluate the effects of temperature (200–240 ℃), time (20–60 min), and citric acid proportion (CA, 4–12 %) across 13 control and 17 experimental groups. The results indicated that, for the control group without catalyst, the maximum higher heating value (H-CS-HHV_Max) was 26.55 MJ/kg, and the maximum energy yield (H-CS-EY_Max) reached 65.49 %. For the experimental group catalyzed by citric acid, the maximum higher heating value (H-CA-HHV_Max) was 27.59 MJ/kg, and the maximum energy yield (H-CA-EY_Max) increased significantly to 91.90 %. Subsequently, the selected optimal hydrochar samples were characterized through scanning electron microscopy, brunauer-emmett-teller, fourier transform infrared spectroscopy, and X-ray diffraction to systematically investigate the evolution of structural properties. The catalytic mechanism of citric acid effectively suppressed both byproduct formation and excessive hydrolysis. Furthermore, thermogravimetric analysis demonstrated that citric acid significantly elevated both the ignition temperature (T_i) and the burnout temperature (T_f), thereby delaying the combustion process. Finally, kinetics analysis using the FWO and Friedman methods revealed that the activation energies of H-CA-EY_Max could be as low as 24.93 kJ/mol (FWO) and 36.76 kJ/mol (Friedman), while those of H-CA-HHV_Max reached 44.02 kJ/mol (FWO) and 52.66 kJ/mol (Friedman). Therefore, the superior combustion stability of citric acid-catalyzed hydrochar allows for its direct application as a clean and efficient fuel.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"193 ","pages":"Article 107368"},"PeriodicalIF":6.2,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046398","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 coal and papermaking black liquor: Synergistic effect, catalysis and migration of alkali metal sodium","authors":"Fengkai Liang ,&nbsp;Xinze Xu ,&nbsp;Kai Xie ,&nbsp;Yingyun Qiao ,&nbsp;Wenrui Zhang ,&nbsp;Haifeng Zhou ,&nbsp;Peng Liang","doi":"10.1016/j.jaap.2025.107365","DOIUrl":"10.1016/j.jaap.2025.107365","url":null,"abstract":"<div><div>This study investigated the characteristics and mechanism of co-pyrolysis of Shenmu coal (SM) and papermaking black liquor (BL). Experiments were conducted in a fixed-bed reactor at temperatures ranging from 500℃ to 700℃, with varying mass ratios of SM and BL. The pyrolysis products were characterized using multiple analytical instruments. Alkali metals (sodium) in BL exhibited significant catalytic activity during co-pyrolysis, promoting volatile product formation and tar cracking. At 500℃, a notable synergistic effect was observed in the co-pyrolysis of SM and BL, with the highest gas yield and optimal tar quality achieved at the SM₇BL₃. As the temperature increased to 600℃, the distribution and properties of co-pyrolysis products were further optimized, resulting in the maximum tar yield and a significant increase in gas production. Analyses using XRF, SEM, XRD, and FTIR revealed that BL addition reduced the char’s crystallinity and graphitization degree, while increasing its porosity and reactivity. The study also elucidated the migration behavior of sodium during co-pyrolysis. Although most sodium remained in the solid phase, its presence facilitated migration to the gas phase, thereby enhancing gas product formation. This research provides important experimental data and theoretical support for the development of coal and biomass co-pyrolysis technology, contributing to the co-pyrolysis process optimization. It benefits energy efficiency and product quality improvements while offering new pathways for the resource utilization of BL.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"193 ","pages":"Article 107365"},"PeriodicalIF":6.2,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145004461","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":"Influence of co-pyrolysis temperature on the characteristics of diesel-like fuel produced from waste frying and engine oils","authors":"Farheen Suleman ,&nbsp;Sajid Muhbat ,&nbsp;Fahim Uddin ,&nbsp;Saud Hashmi ,&nbsp;Azry Borhan ,&nbsp;Farooq Ahmad ,&nbsp;Naveed Ahmad","doi":"10.1016/j.jaap.2025.107352","DOIUrl":"10.1016/j.jaap.2025.107352","url":null,"abstract":"<div><div>Global warming and energy crisis have driven the attention of researchers towards conversion of waste materials into valuable products. As compared to the simple pyrolysis, the co-pyrolysis is an environmentally friendly and effective waste conversion process which enhances the yield and properties of the co-pyrolytic fuel. This study explored the effect of temperature (380–450°C, with 10°C difference) on the yield and properties of the co-pyrolytic oil produced from waste frying oil and waste engine oil mixture with 1:1 ratio by volume. The influence of co-pyrolysis temperature on the fractions and properties of the distillate oil within the boiling range of diesel was also analyzed, which was obtained by ASTM D86 distillation of the co-pyrolytic oil. This co-pyrolysis study was conducted in a stainless-steel semi-batch reactor of 1.856-liters capacity. Most of the samples showed that physiochemical properties resembled to that of the commercial diesel, particularly at temperatures above 420°C. Product fuel was characterized by testing commercially important physiochemical properties including pour point, cetane index, API gravity, kinematic viscosity, calorific value, sulfur content and flash point by using test methods set by ASTM standards. Properties of the product fuel were compared to that of the standard specifications for diesel and biodiesel set by ASTM. The highest yield of co-pyrolytic oil (80.1 wt%) and highest fraction of distillate oil (85 vol%) were obtained at 450°C. By comparing with diesel and biodiesel, co-pyrolytic and distillate oils obtained at 450°C showed physiochemical properties resembling closely to the commercial diesel.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"193 ","pages":"Article 107352"},"PeriodicalIF":6.2,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145004465","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":"Capability of thermodesorption/pyrolysis DART FT-ICR MS to distinguish fluoropolymers and identify blend composition","authors":"Pierre Pacholski ,&nbsp;Sébastien Schramm ,&nbsp;Théo Voellinger ,&nbsp;Umut Ugur Ozkose ,&nbsp;Pierre Magri ,&nbsp;Frank David-Quillot ,&nbsp;Bruno Améduri ,&nbsp;Frédéric Progent ,&nbsp;Frédéric Aubriet","doi":"10.1016/j.jaap.2025.107361","DOIUrl":"10.1016/j.jaap.2025.107361","url":null,"abstract":"<div><div>Direct analysis in real time (DART) was coupled with a thermal desorption/pyrolysis (TDPy) device for the analysis of fluoropolymers. The product ions were analyzed using a Fourier transform cyclotron resonance mass spectrometer (FT-ICR MS). Two different polyvinylidene fluoride (PVDF) samples were studied individually and in a 50/50 mixture. This study demonstrates the capability of TDPy DART FT-ICR MS to provide information on PVDF polymers, including the determination of end-groups and the detection of comonomers.</div><div>The temperature program used enabled the desorption of the smallest oligomers (Mn ≈ 600 Da) below 400 °C, allowing for the identification of the end-groups, which ensured the differentiation of the PVDF. At temperatures above 400 °C, C_wH_xF_y^– ions were predominantly formed as a result of the thermal cleavage of the PVDF backbone. Specific pyrolysis products observed for one PVDF sample suggested the presence of 4.6 mol% hexafluoropropylene (HFP), as determined by NMR measurements. The molar percentage of HFP was also determined by a new approach using TDPy DART MS. The analysis of a 50/50 PVDF blend revealed species from both polymers during the thermo-desorption and pyrolysis events, confirming the ability of the proposed methodology to determine the mol% of the HFP comonomer.</div><div>This represents the first TDPy DART FT-ICR MS study of fluoropolymers. Applicable to non-soluble or poorly soluble polymers, the proposed methodology enables the identification of end-groups, suggests the possibility of distinguishing fluoropolymers, and identifies blend composition. Additionally, the molar percentage of comonomers can be defined for poly(VDF-<em>co</em>-HFP) copolymers.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"193 ","pages":"Article 107361"},"PeriodicalIF":6.2,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145020389","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":"Activation of different parts of a ginkgo tree form activated carbon of distinct pore characteristics and mass yields","authors":"Stelgen Inkoua ,&nbsp;Yuchen Jiang ,&nbsp;Chao Li ,&nbsp;Shu Zhang ,&nbsp;Shuang Wang ,&nbsp;Tao Wei ,&nbsp;Xun Hu","doi":"10.1016/j.jaap.2025.107359","DOIUrl":"10.1016/j.jaap.2025.107359","url":null,"abstract":"<div><div>Components of a tree typically include fruits, leaves, bark, and wood, which might be processed together through thermochemical routes such as activation. Different parts of a tree with varied structures might have distinct contributions towards pore development of activated carbon (AC). This was investigated herein by conducting activation of different parts of a ginkgo tree with K₂C₂O₄ at 800 °C. The results indicated that the organics in ginkgo leaves were rather aliphatic and thermally unstable. Their high propensity towards cracking formed a lower yield of AC-leaves (18.0 %) than that from activation of shell, bark, and wood (ca. 22 %). The significant removal of carbonaceous species in the activation of leaves led to much lower carbon yield than that from shell and wood (12.3 % versus ca. 19 %). However, intensive cracking of leaves generated more developed pores (mesopores for AC-leaves: 17.1 % versus ca. 7 % for others). The S_BET followed the order: AC-leaves (1082.9 m²g⁻¹) &gt; AC-wood (974.6 m²g⁻¹) &gt; AC-shell (880.7 m²g⁻¹) &gt; AC-bark (850.7 m²g⁻¹). Substantial deoxygenation of cellulose/lignin in activation of the shell and wood formed oxygen-deficient AC (oxygen content: ca. 7 %), while AC-leaves and AC-bark were oxygen-rich (ca. 27 %, oxygen in C-O-C form). <em>In-situ</em> IR analysis of activation of leaves confirmed highly unstable aliphatic structures like alcoholic/phenolic -OH, -C-H, and C<img>O species, forming AC-leaves of fragmented morphology. Carbon skeleton of the shell and wood was thermally more stable, retaining fibrous biological structures in the resulting ACs. Additionally, AC-leaves showed the highest efficiency for removal of Cr VI via monolayer sorption through complexation or chemisorption mechanisms.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"193 ","pages":"Article 107359"},"PeriodicalIF":6.2,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145004464","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":"Study on the release behavior of alcohol flavors during the pyrolysis of polymer-supported composite flavor precursors","authors":"Chen Zhu ,&nbsp;Si-Tong Liu ,&nbsp;Sihai Ni ,&nbsp;Jun-Sheng Shu ,&nbsp;Zeng-Yang He ,&nbsp;Wenbin Wang ,&nbsp;Chun-Hua Liu ,&nbsp;Peng Zou ,&nbsp;Liangyuan Jia ,&nbsp;Yuan-Yuan Zhu","doi":"10.1016/j.jaap.2025.107367","DOIUrl":"10.1016/j.jaap.2025.107367","url":null,"abstract":"<div><div>Polymer-supported flavor precursors offer a promising strategy for achieving stable and controlled release of volatile compounds during thermal processing. In this study, a series of novel composite-type polyacrylate and polymethacrylate-supported flavor precursors were synthesized by grafting two selected flavor moieties from four representative alcohol-based flavor compounds, citronellol, anisyl alcohol, 1-phenylethanol, and methyl cyclopentenolone (MCP), onto polymer backbones via ester bond formation. Hydrophilic oligoethylene glycol (OEG) side chains were incorporated to improve solubility in alcoholic media. The structural integrity and composition of the resulting copolymers were confirmed using NMR, FT-IR, SEC, and UV−Vis analyses. Thermal stability and aroma release behaviors were systematically evaluated under both gradual and rapid pyrolysis conditions using TG-DSC, FBR-SPIMS, and Py-GC-MS. The results demonstrated that polymerization markedly elevated flavor release temperatures and facilitated synchronized release of composite aromas. Among the flavor components, MCP exhibited the most efficient release, whereas benzylic alcohols, including anisyl alcohol and 1-phenylethanol, showed negligible release due to thermal degradation. Additionally, polyacrylates demonstrated superior flavor release compared to polymethacrylate analogs, attributed to the greater thermal stability of the polyacrylate backbone. These findings underscore the potential of polymer-supported composite precursors as robust and tunable platforms for composite flavor release in thermally processed systems.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"193 ","pages":"Article 107367"},"PeriodicalIF":6.2,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145010771","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":"Insights into the catalytic effect of calcium occurrence and the anchored stability in char on steam gasification","authors":"Kai Han,&nbsp;Quansheng Liu,&nbsp;Na Li,&nbsp;Huacong Zhou,&nbsp;Yanpeng Ban","doi":"10.1016/j.jaap.2025.107366","DOIUrl":"10.1016/j.jaap.2025.107366","url":null,"abstract":"<div><div>Calcium-catalyzed steam gasification represents a clean and efficient technology for converting low-rank lignite into syngas. In previous studies, there was no consensus on the evolution characteristics of calcium-loaded lignite during char formation and the calcium occurrence at different pyrolysis temperatures. Therefore, the present work analyzes the calcium-catalyzed steam gasification process of char derived from the pyrolysis of lignite with and without acid treatment, simplifying the structure via demineralization. The results demonstrate that the calcium-loaded char samples' gasification performance at relatively low pyrolysis temperatures decreases after acid treatment. In addition, the gasification reaction temperature of acid-treated char decreases with the increase of pyrolysis temperature, but the gasification reaction temperature increases again at 900 °C, showing a trend of decreasing first and then increasing. The characterization results show that forming organic calcium in the char sample is the key feature affecting its steam gasification reaction performance. Simultaneously, the effectiveness of acid treatment for eluting calcium-containing compounds from the char samples is demonstrated to depend heavily on the pyrolysis temperature. For calcium-loaded coal without pyrolysis, almost all of the calcium was removed by acid treatment. For the calcium-loaded char prepared at 700 °C, the acid treatment has the weakest ability to elute calcium from the char, and only about 37 % calcium are removed. The results of this study are for further study of calcium-catalyzed steam gasification of lignite char. The catalytic mechanism in the reaction process and the efficient and clean utilization of lignite provide a theoretical basis.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"193 ","pages":"Article 107366"},"PeriodicalIF":6.2,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144988824","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":"Smart modeling of oil shale pyrolysis: Impact of feed composition and thermal parameters","authors":"Mahdi Abdi-Khanghah ,&nbsp;Mohadese Abdi-Khanghah ,&nbsp;Saeed Zeinali Heris ,&nbsp;Somchai Wongwises ,&nbsp;Omid Mahian","doi":"10.1016/j.jaap.2025.107363","DOIUrl":"10.1016/j.jaap.2025.107363","url":null,"abstract":"<div><div>The development of oil shale resources is gaining global importance due to increasing energy demand. Pyrolysis is the most economical and feasible method for extracting oil from shale, yet its performance is difficult to predict due to complex reaction mechanisms, uncertainties in Arrhenius-type kinetics, and the often-overlooked role of heating rate. This study presents a novel application of artificial intelligence (AI) to predict oil shale pyrolysis behavior. Using elemental composition (C, H, N, O, S wt%), temperature, and heating rate as inputs, AI models were trained to estimate residual solid content after pyrolysis. A dataset of 457 thermogravimetric analysis (TGA) experiments was used, with an 80:20 train-test split. Three AI models—Artificial Neural Network (ANN), Adaptive Neuro-Fuzzy Inference System (ANFIS), and Least Squares Support Vector Machine (LSSVM)—were developed for comparison. ANFIS outperformed the others, achieving R² = 0.9706, RMSE = 5.6, and SD = 0.030. Graphical evaluations (residuals, scatter plots, Box-Cox, and cumulative error plots) supported its robustness. Sensitivity analysis based on relevancy factors showed that increased heating rate reduces pyrolysis efficiency, while higher temperature and elemental contents positively influence performance. Temperature was the most significant factor (r = –0.6766), indicating its central role in process optimization. This work demonstrates the effectiveness of AI in modeling oil shale pyrolysis and offers a valuable tool for improving operational strategies.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"193 ","pages":"Article 107363"},"PeriodicalIF":6.2,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145096210","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":"Advanced pyrolysis methods for mixed plastic waste management: Enhanced char and gas yields","authors":"Mahak Hashemi,&nbsp;Kate Thuy Quynh Nguyen,&nbsp;Dilan J. Robert,&nbsp;Guomin Kevin Zhang,&nbsp;Tayebeh Hosseinnejad,&nbsp;Donavan Marney","doi":"10.1016/j.jaap.2025.107360","DOIUrl":"10.1016/j.jaap.2025.107360","url":null,"abstract":"<div><div>This review provides an extensive and detailed perspective on plastic waste pyrolysis, specifically shifting the conventional emphasis from oil recovery to the valorization and quality enhancement of char and gas products. Recognizing the growing importance of these pyrolysis products as alternative fuels, adsorbents, and carbonaceous materials, this study systematically evaluates recent advancements in pyrolysis technologies. It integrates fragmented findings from numerous sources into a coherent and comprehensive framework aimed at optimizing pyrolysis processes to achieve high-quality outputs. The review thoroughly investigates critical operational parameters, including feedstock heterogeneity, pyrolysis temperature, heating rate, residence time, and reactor configuration, elucidating their substantial impacts on the yield, composition, and functional performance of char and gas products. Each parameter's role is examined in detail, providing insights into how variations can steer pyrolysis outcomes toward desired end products. A significant part of this review is dedicated to catalytic systems such as zeolites, metal oxides, and biochar-based materials. The review clarifies their distinctive catalytic roles, focusing on their capabilities to direct reaction pathways, enhance the quality and selectivity of pyrolysis products, improve overall energy efficiency, and minimize unwanted by-products, including tar formation and corrosive emissions. The review also explores the interplay between catalyst properties, such as acidity, pore structure, and surface chemistry, and their effectiveness in enhancing pyrolysis outcomes. Furthermore, the paper offers an in-depth critical assessment of state-of-the-art pyrolysis techniques, including microwave-assisted pyrolysis, plasma pyrolysis, and in-line catalytic reforming. These innovative approaches are evaluated for their potential to significantly improve thermal efficiency, optimize product selectivity, and substantially mitigate environmental impacts, emphasizing their advantages over traditional pyrolysis methods. A distinctive feature of this review is the dedicated discussion of gas-phase corrosion in pyrolysis processes, highlighting the environmental and operational implications often neglected in prior research. The mechanisms, impacts, and strategies for mitigating corrosion are discussed to provide a comprehensive understanding of this operational challenge. Unlike previous reviews that broadly address all pyrolysis products, this paper prioritizes char and gas valorization, presenting a detailed analysis of their recovery processes and potential applications. Through careful identification of essential design principles, performance metrics, and critical process parameters, this review serves as a strategic and forward-looking roadmap for researchers and industry professionals. It aims to guide future developments and innovations in high-performance pyrolysis systems, ultimately su","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"193 ","pages":"Article 107360"},"PeriodicalIF":6.2,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046410","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":"Evaluation of loblolly pine wood biochar properties derived from the slow-pyrolysis process for the synergetic benefit of carbon sequestration and soil conditioning","authors":"Vivian C. Usha ,&nbsp;Hossein Jahromi ,&nbsp;Dale Hartmann ,&nbsp;Sushil Adhikari","doi":"10.1016/j.jaap.2025.107358","DOIUrl":"10.1016/j.jaap.2025.107358","url":null,"abstract":"<div><div>Loblolly pine biochar was produced through slow pyrolysis using a rotary kiln at three temperatures (450 °C, 550 °C, and 650 °C), and its potential for carbon sequestration and soil conditioning were evaluated using carbon structure analysis and labile/stable carbon analysis. Among the three biochar samples, the biochar produced at 450 °C exhibited the highest yield (23 %), a hydrophilic static contact angle (82.75 °), water holding capacity (560.60 %), acid buffering capacity (969.70 mmol H⁺/kg), a soil-compatible pH (6.29), low electrical conductivity (0.17 dS/m), and a high nutrient content with heavy metal levels well below the US Environmental Protection Agency thresholds. Also, the PAHs levels is below the regulatory limits for environmental application. The low static contact angle of the 450 °C biochar indicates the presence of hydrophilic surface functional groups, which enhance wetting properties and water-holding capacity. Notably, all biochar samples demonstrated potential synergetic benefits for carbon sequestration and soil health improvement without raising concerns about heavy metal contamination.</div></div>","PeriodicalId":345,"journal":{"name":"Journal of Analytical and Applied Pyrolysis","volume":"193 ","pages":"Article 107358"},"PeriodicalIF":6.2,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144996973","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}