Solid Fuel Chemistry最新文献

{"title":"Experimental Study on Characteristics of Gas Migration and Dispersion in One Dimensional Space","authors":"Ji Wu,&nbsp;Zongxiang Li,&nbsp;Shuoran Huang,&nbsp;Nan Jia","doi":"10.3103/S0361521924700484","DOIUrl":"10.3103/S0361521924700484","url":null,"abstract":"<p>Mine counter wind is an important relief measure to control airflow when disaster occurs in mine. Once a fire occurs in the main inlet area of the mine, in order to prevent the expansion of the disaster, it is necessary to carry out mine counter wind.Windy well gas ventilation system during mine air reverse distribution of gas migration is more complex, rely on experimental method is difficult to clearly grasp the mineral sheers distribution of gas migration during the wind, combined with the practice, rarely used against the wind, the lack of mineral sheers anti wind during gas migration distribution in ventilation system, resulting in many cases, difficult to make a decision on against the wind, Therefore, it is necessary to use the computer simulation program to simulate and study the reverse wind in the high gas mine with multiple air shafts. And gas migration in mine is one of the most important parameters in simulation of dispersion dispersion coefficient of gas migration, is for the study of reverse wind during the migration of gas in mine network system diffusion process, the formation of high concentration of gas cloud caused by catastrophe rule research and plan technical analysis, gas migration characteristics of dispersion experiments.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"59 1","pages":"38 - 47"},"PeriodicalIF":0.8,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143513312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Erratum to: Effect of Limestone Addition to Coal on SO2 Emission Control and Erosion-Corrosion Behaviour of Rifle Bore Bed Tube in AFBC Boiler","authors":"K. Ravi,&nbsp;M. Matheswaran,&nbsp;S. A. Srinivasan","doi":"10.3103/S036152192501001X","DOIUrl":"10.3103/S036152192501001X","url":null,"abstract":"","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"59 1","pages":"76 - 76"},"PeriodicalIF":0.8,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143513319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Regeneration of Sibunit Carbon Material Previously Used in the Adsorption of 2,4-Dichlorophenoxyacetic Acid by Microwave Radiation","authors":"M. D. Vedenyapina,&nbsp;S. A. Kulaishin,&nbsp;A. V. Chistyakov,&nbsp;A. K. Rakishev,&nbsp;S. A. Bulkin,&nbsp;M. V. Tsodikov,&nbsp;G. I. Konstantinov","doi":"10.3103/S0361521924700381","DOIUrl":"10.3103/S0361521924700381","url":null,"abstract":"<p>The possibility of reusing mesoporous Sibunit as an adsorbent for 2,4-dichlorophenoxyacetic acid was studied. The effectiveness of using microwave radiation to restore the adsorption properties of the studied adsorbent was shown. A decrease in the average pore size on the surface of the Sibunit sample was noted as the adsorption–regeneration cycles were carried out without reducing the value of the adsorption capacity.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"58 6","pages":"472 - 476"},"PeriodicalIF":0.8,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the Mechanical Properties and Crack Evolution of Bedding Coal under Splitting Load","authors":"Laisheng Huang,&nbsp;Bo Li,&nbsp;Chao Li,&nbsp;Bing Wu,&nbsp;Jingxin Wang,&nbsp;Yang Li","doi":"10.3103/S0361521924700435","DOIUrl":"10.3103/S0361521924700435","url":null,"abstract":"<p>In order to study the tensile properties and crack evolution of bedding coal under splitting load, Brazilian splitting tests were conducted on bedding coal. Results indicate distinct anisotropic mechanical properties of bedding coal. When the bedding dip angle is 0°, the coal sample exhibits the highest tensile strength and splitting modulus, followed by 30° and 90°, with the lowest values observed at 60°. Under the Brazilian splitting load, the crack propagation mechanism for coal samples with a bedding dip angle of 0° involves a combined tension-shear fracture. For dip angles of 0° and 60°, the crack propagation mechanism gradually shifts from tension-shear to tension failure, while at 90°, the crack propagation mechanism is primarily along the bedding plane in tension. The tensile failure characteristics of coal samples with bedding dip angles of 60° and 90° are more pronounced, and the load- acoustic emission parameter curve shows distinct bedding features. In the case of a 30° bedding dip angle, the failure is mainly due to a combined shear and tension cracking, with the acoustic emission counts exhibiting a multi-stage growth pattern. Furthermore, this study explores the implications of bedding coal fracture morphology for fracturing.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"58 6","pages":"522 - 533"},"PeriodicalIF":0.8,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Combined TG–FTIR Study on the Pyrolysis of Waste Generated in the Coffee Production Chain","authors":"Ya. D. Pudova,&nbsp;Yu. M. Faleeva","doi":"10.3103/S0361521924700332","DOIUrl":"10.3103/S0361521924700332","url":null,"abstract":"<p>The results of a study on the pyrolysis of agricultural (coffee husks and parchment) and agroindustrial (two types of spent coffee grounds) waste from coffee production are presented. A study of the temperature dependence of the weight loss of samples during pyrolysis and the qualitative analysis of the main volatile substances were carried out using a thermogravimetric analyzer (TG) coupled with a Fourier transform infrared spectrometer (FTIR). The main stages of thermal decomposition of the samples were presented at four heating rates of 5, 10, 20, and 30 K/min. The results of an analysis of IR spectra for the volatile components of pyrolysis products of four materials were shown, and the temperature dependences of the absorption band intensities of the main gaseous pyrolysis compounds were plotted.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"58 6","pages":"432 - 440"},"PeriodicalIF":0.8,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chicken Litter Pyrolysis and Composition of Gaseous Products Formed","authors":"O. M. Larina,&nbsp;Ya. D. Pudova","doi":"10.3103/S0361521924700344","DOIUrl":"10.3103/S0361521924700344","url":null,"abstract":"<p>In this work, a study of chicken litter pyrolysis was carried out in a thermal analyzer in a temperature range from 20 to 905°C at different heating rates of the raw material. Four peaks were obtained in a graph of the temperature dependence of the rate of weight loss. The first and second peaks were associated with the decomposition of plant biomass components; the third peak was due to the decomposition of plant and manure components, and the fourth peak characterized the decomposition of compounds from the mineral part of chicken manure. Spectral analysis of the gaseous products of chicken litter pyrolysis showed that they contained flammable components typical of gaseous products of thermal decomposition of plant biomass. The temperature range of the most intense formation of main carbon-containing compounds was 140–380°C. In addition, nitrogen-containing compounds associated with the decomposition of urea and proteins from chicken manure were found in the volatile components.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"58 6","pages":"441 - 451"},"PeriodicalIF":0.8,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermogravimetric Analysis of PAN Fiber after Thermostabilization Process","authors":"M. V. Shishanov,&nbsp;T. V. Bukharkina,&nbsp;A. N. Ivanova,&nbsp;M. S. Luchkin","doi":"10.3103/S036152192470037X","DOIUrl":"10.3103/S036152192470037X","url":null,"abstract":"<p>The results of thermogravimetric analysis of polyacrylonitrile fiber samples after the process of oxidative thermal stabilization in air are presented. Based on a study of a commercial sample of PAN fiber, the dependences of the weight loss of the starting material on the final temperature of oxidative thermal stabilization and the heating rate are presented. A machine learning model was built using the results of the experiments in order to predict the dependence of the weight loss of the starting material on the technological parameters of the oxidative thermal stabilization process.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"58 6","pages":"465 - 471"},"PeriodicalIF":0.8,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Harvesting Time on Biomass and Combustion Quality of Miscanthus lutarioriparius in Dongting Lake Area","authors":"Viswanathan Kinipalayam Eswaran,&nbsp;Senthilkumar Veerasamy,&nbsp;Pradeep Thirumoorthy,&nbsp;Sampathkumar Velusamy","doi":"10.3103/S0361521924700423","DOIUrl":"10.3103/S0361521924700423","url":null,"abstract":"<p>Biomass energy is increasingly recognized as a promising alternative to conventional energy sources, offering potential sustainability and environmental benefits. Miscanthus has emerged as a standout candidate within energy crops, with <i>M. lutarioriparius</i> particularly noteworthy. This research delves into the intricate relationship between the timing of harvest and the resulting biomass yield and combustion quality of <i>M. lutarioriparius</i> in the unique coastal wetlands surrounding China’s Dongting Lake. An extensive field experiment was meticulously executed to explore these dynamics, yielding valuable insights comprehensively. (1) First and foremost, the study unearthed a paradoxical trend: delaying the harvest of <i>M. lutarioriparius</i> led to an increase in the stem-to-leaf ratio. However, this apparent benefit was counterbalanced by a noticeable decrease in overall biomass yield, primarily driven by the shedding of leaves as harvest was delayed. Delving into the intricacies of biomass composition, delayed harvests had a significant impact. (2) Specifically, they resulted in marked reductions in water content, ash content, and hemicellulose levels within <i>M. lutarioriparius</i> biomass. The correlation analysis further underscored the importance of cellulose and lignin, with a strong positive relationship between their content and calorific value, while hemicellulose exhibited a highly significant negative correlation. (3) Additionally, the study ventured into the realm of mineral elements within the biomass. Delayed harvesting precipitated a substantial reduction in their content, with notable fluctuations observed in potassium (K) and calcium (Ca) levels. Furthermore, ash content exhibited positive correlations with potassium (K) and silicon (Si) contents, shedding light on the intricate interplay of mineral elements. A notable silver lining emerged despite the reduced biomass yield associated with delayed harvesting. In a holistic assessment, the optimal window for harvesting <i>M. lutarioriparius</i> to maximize fuel quality was pinpointed to span from late November to the conclusion of January in the subsequent year. This nuanced understanding of harvesting timing can play a pivotal role in optimizing the utilization of <i>M. lutarioriparius</i> as a valuable energy resource.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"58 6","pages":"508 - 521"},"PeriodicalIF":0.8,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on Disaster Mechanism and Prevention of Air Leakage Channel in Shallow Close Distance Coal Seam Group","authors":"Ran Peng,&nbsp;Xiaobin Yang,&nbsp;Wei Li","doi":"10.3103/S036152192470040X","DOIUrl":"10.3103/S036152192470040X","url":null,"abstract":"<p>The shallow-buried close-distance coal seam group has the characteristics of large mining height, shallow burial depth and small interlayer spacing. After coal seam mining, a penetrating air leakage channel is formed on the surface and underground, which is the main cause of low oxygen in the return air corner. This paper, PFC simulation is used to study the caving law of overburden rock and the evolution process of air leakage channel during the mining process of working face. The results show that the low oxygen gas in the goaf of 12 # coal seam mainly migrates to the return corner of the lower 221014 working face. The main medium facilitating this is the interconnected inter-coal seam air leakage channel, and the primary driving force is the substantial and rapid decrease in surface gas pressure, leading to a significant gas pressure difference between the return airway corner and the goaf of the 12 # coal seam. Aiming at the low oxygen phenomenon in the return air corner. The governance measures involving even-pressure ventilation technology were proposed. Theoretical calculations determined a safe gas pressure adjustment range for the return airway corner to be between 88.328 and 88.549 Pa. The pressure equalizing ventilation technology effectively controls the pressure difference between the goaf of 12 # coal seam and 22104 working face, and reduces the air leakage. Finally, the oxygen concentration in the return air corner is increased to prevent excessive fresh air from pouring into the goaf.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"58 6","pages":"485 - 499"},"PeriodicalIF":0.8,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Production of Fuel Briquettes from Carbon-Containing Technogenic Raw Materials","authors":"N. I. Buravchuk,&nbsp;O. V. Guryanova","doi":"10.3103/S0361521924700320","DOIUrl":"10.3103/S0361521924700320","url":null,"abstract":"<p>The article presents the results of experimental studies on the production of fuel briquettes from carbon-containing technogenic raw materials with a certain energy potential, flotation concentrate of coal enrichment sludge and wood and plant residues with binders. The technical characteristics of fuel briquettes of experimental batches are presented. The applicability of the selected binders for obtaining high-quality fuel briquettes was demonstrated. Aspects of the formation of the structure and properties of fuel briquettes are considered.</p>","PeriodicalId":779,"journal":{"name":"Solid Fuel Chemistry","volume":"58 6","pages":"427 - 431"},"PeriodicalIF":0.8,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}