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Efficient Cyclone-Based Dust Capture Technology for Dry Quenching Systems 干冷系统的高效旋风集尘技术
IF 0.5
Coke and Chemistry Pub Date : 2026-04-27 DOI: 10.3103/S1068364X26600089
Zhiqiang Fan, Wenyu Yang, Yang Mao, Lin Li, Bencheng Chen, Yu Wang, Xiuhua Wang
{"title":"Efficient Cyclone-Based Dust Capture Technology for Dry Quenching Systems","authors":"Zhiqiang Fan,&nbsp;Wenyu Yang,&nbsp;Yang Mao,&nbsp;Lin Li,&nbsp;Bencheng Chen,&nbsp;Yu Wang,&nbsp;Xiuhua Wang","doi":"10.3103/S1068364X26600089","DOIUrl":"10.3103/S1068364X26600089","url":null,"abstract":"<p>In the dry quenching of coke, the efficiency of dust capture directly determines the life of the waste heat boiler and has great influence on the overall operational stability of the system. In the present work, widely used methods of dust capture and their operating principles in the dry quenching system are reviewed. The configuration of the primary treatment cyclone is optimized by modeling. On that basis, a highly efficient dust capture technology for the dry quenching system is proposed. Practical experience shows that the efficiency of dust capture by the primary treatment cyclone is 93.88%. That eliminates the rupture of boiler tubes on account of abrasive wear and extends the life of the waste heat boiler.</p>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"69 1","pages":"35 - 43"},"PeriodicalIF":0.5,"publicationDate":"2026-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147751206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Interaction of Reducing Gases with Pellets: Cellular Automaton Simulation 还原性气体与颗粒的相互作用：元胞自动机模拟
IF 0.5
Coke and Chemistry Pub Date : 2026-04-27 DOI: 10.3103/S1068364X26600065
I. S. Bersenev, E. R. Sabirov, I. D. Plaksin, N. A. Spirin
{"title":"Interaction of Reducing Gases with Pellets: Cellular Automaton Simulation","authors":"I. S. Bersenev,&nbsp;E. R. Sabirov,&nbsp;I. D. Plaksin,&nbsp;N. A. Spirin","doi":"10.3103/S1068364X26600065","DOIUrl":"10.3103/S1068364X26600065","url":null,"abstract":"<p>Ore pellets are commonly used in the blast furnace to produce pig iron and are practically the only raw material suitable for MIDREX and HYL furnaces. Therefore, it is of great importance to improve pellet quality and hence the efficiency of steel production. The reducing properties of the ore pellets are critical to furnace performance. In the present work, the role of pellet cracking in changing the reduction rate is studied. Cellular automata are used in simulating the pore structure of the pellets in a stream of reducing gas. The application of this method is shown to be feasible. The overall picture of the process obtained corresponds to empirical data. Reduction of the pellets’ pore structure by gas occurs in two stages, which differ in the rate of mass transfer. In the first stage, the reduction rate depends exclusively on the contact area of the phases. After surface reduction is complete, the reduction rate is determined by the gas diffusion within the pellet’s mineral component. Pellet cracking markedly increases the reduction rate in the initial stage: the number of reduced grains may be increased by as much as 100%. Positive feedback between the reduction rate and the growth rate of the cavity volume in the pellet is noted: these processes are mutually accelerating. The limiting factors are processes at the surface and gas transfer. In practice, there is no need to produce pellets with very high (&gt;95%) hot strength. Such pellets, while formally meeting the technical requirements, are reduced very slowly and retard the smelting process.</p>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"69 1","pages":"14 - 22"},"PeriodicalIF":0.5,"publicationDate":"2026-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147751203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Coal Blending Methods and Coking Technology: A Review 配煤方法与焦化技术综述
IF 0.5
Coke and Chemistry Pub Date : 2026-04-27 DOI: 10.3103/S1068364X26600041
A. P. Nikitin, R. Yu. Kovalev
{"title":"Coal Blending Methods and Coking Technology: A Review","authors":"A. P. Nikitin,&nbsp;R. Yu. Kovalev","doi":"10.3103/S1068364X26600041","DOIUrl":"10.3103/S1068364X26600041","url":null,"abstract":"<p>This systematic analysis of current coal blending methods and coking processes includes detailed investigation of key factors in ensuring adequate quality of metallurgical coke—in particular, the chemical and petrographic properties of the coal and the coking parameters. Special attention is paid to methods of optimizing the batch composition when using coal of limited metamorphic development and functional additives and to innovative coking approaches. The recommendations presented regarding batch compositions that yield coke with specified properties when high-quality coal is in short supply are or great practical importance. The results of this review will be of value to coke production specialists, scientists researching coal chemistry, and coke plant teams responsible for finding scientifically valid solutions to production problems.</p>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"69 1","pages":"1 - 13"},"PeriodicalIF":0.5,"publicationDate":"2026-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147751205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research on Methods for Rapid Determination of Harmful Elements Fluorine and Chlorine in Coal 煤中有害元素氟、氯快速测定方法研究
IF 0.5
Coke and Chemistry Pub Date : 2026-04-27 DOI: 10.3103/S1068364X26600028
Fang Yu,  Limin Zhang
{"title":"Research on Methods for Rapid Determination of Harmful Elements Fluorine and Chlorine in Coal","authors":"Fang Yu,&nbsp; Limin Zhang","doi":"10.3103/S1068364X26600028","DOIUrl":"10.3103/S1068364X26600028","url":null,"abstract":"<p>Based on GB/T 4663-2014 (Determination Method of Fluorine in Coal) and GB/T 3558-2014 (Determination Method of Chlorine in Coal), after adjusting pH and constant volume of the aqueous solution absorbed by hydrolysis of coal sample by high-temperature combustion. The solution was accurately measured and divided into 2 parts. Fluorine ion selective electrode and potentiometric titration method were used to determine fluorine and chlorine in coal respectively. The content of fluorine and chlorine in coal is calculated by deduction. The study also explored the impact of the original absorption liquid transfer volume and the number of absorption stages on the determination results. Ultimately, a single-stage absorption with 10 mL of water as the absorption solution was selected. For the determination of fluorine content, 50 mL of the absorption solution was pipetted, while for the determination of chlorine content, 45 mL of the absorption solution was pipetted. In addition, through the study of precision and accuracy, it is confirmed that the method is not only less time and labor than the standard method, but also has the characteristics of good repeatability and reproducibility, simple and rapid operation.</p>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"69 1","pages":"44 - 48"},"PeriodicalIF":0.5,"publicationDate":"2026-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147751202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pore Structure of Carbonized Lignite Modified by Ferric Nitrate 硝酸铁改性炭化褐煤的孔隙结构
IF 0.5
Coke and Chemistry Pub Date : 2026-04-27 DOI: 10.3103/S1068364X26600077
I. Yu. Zykov, N. I. Federova
{"title":"Pore Structure of Carbonized Lignite Modified by Ferric Nitrate","authors":"I. Yu. Zykov,&nbsp;N. I. Federova","doi":"10.3103/S1068364X26600077","DOIUrl":"10.3103/S1068364X26600077","url":null,"abstract":"<p>The influence of added ferric nitrate on the pore structure of carbonized lignite is studied. The ferric nitrate Fe(NO<sub>3</sub>)<sub>3</sub> is added by steeping in terms of the moisture capacity, with the following ratios of the anhydrous salt and the carbonizate: 0.20, 0.25, 0.33, and 0.50 g/g. (The ferric nitrate is first dissolved in dilute nitric acid solution.) The texture of the modified carbonizates is studied by analysis of the N<sub>2</sub> adsorption–desorption isotherms at 77 K (–195.97°C) on an ASAP-2020 system. The addition of ferric nitrate is found to produce carbon materials with higher specific surface and pore volume. The greatest increment in specific surface (by 30%) and pore volume (by 40%) is observed in samples with ratios of 0.20 and 0.25 g/g. With increase in the added ferric nitrate, the proportion of mesopores increases; it is greatest (54.6%) for the sample with a ratio of 0.50 g/g. According to energy-dispersive X-ray spectroscopy (EDX) and X-ray powder diffraction, the addition of ferric nitrate results in the formation of small magnetic Fe, γ-Fe<sub>2</sub>O<sub>3</sub>, and Fe<sub>3</sub>O<sub>4</sub> particles on the surface of the carbon materials. Consequently, those materials may be retained by means of the field created by neodymium permanent magnets.</p>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"69 1","pages":"30 - 34"},"PeriodicalIF":0.5,"publicationDate":"2026-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147751204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Supercapacitor Electrodes Based on Carbon Derivatives of Poorly Caking Coal 基于低结块煤碳衍生物的超级电容器电极
IF 0.5
Coke and Chemistry Pub Date : 2026-04-27 DOI: 10.3103/S1068364X26600053
T. S. Nechaeva, N. S. Zakharov, G. Yu. Simenyuk
{"title":"Supercapacitor Electrodes Based on Carbon Derivatives of Poorly Caking Coal","authors":"T. S. Nechaeva,&nbsp;N. S. Zakharov,&nbsp;G. Yu. Simenyuk","doi":"10.3103/S1068364X26600053","DOIUrl":"10.3103/S1068364X26600053","url":null,"abstract":"<p>The influence of two chemical activators (KOH and ZnCl<sub>2</sub>) on the properties of porous carbon materials derived from naturally oxidized poorly caking coal (SS coal) is compared. It follows from cyclic voltammetry and low-temperature nitrogen sorption that potassium hydroxide produces an electrode material with excellent unit capacitance. That may be attributed to the highly developed surface and optimal pore structure (with a predominance of micropores) of the resulting carbon material, ensuring effective charge storage in a double electric layer. The rectangular voltammetric curve and weak dependence of the unit capacitance on the rate of potential scanning confirm the predominance of double layer charge storage and the satisfactory kinetic characteristics of the material produced. These results indicate that KOH-activated carbon materials based on SS coal may be used as highly efficient electrodes for supercapacitors.</p>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"69 1","pages":"23 - 29"},"PeriodicalIF":0.5,"publicationDate":"2026-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147751201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modifying the Hydraulic Drive for a Pumping Station 泵站液压传动的改进
IF 0.5
Coke and Chemistry Pub Date : 2026-04-01 DOI: 10.3103/S1068364X25601374
V. V. Tochilkin, S. I. Platov, L. V. Krupnov, D. S. Nosachev, S. A. Shlenkin
{"title":"Modifying the Hydraulic Drive for a Pumping Station","authors":"V. V. Tochilkin,&nbsp;S. I. Platov,&nbsp;L. V. Krupnov,&nbsp;D. S. Nosachev,&nbsp;S. A. Shlenkin","doi":"10.3103/S1068364X25601374","DOIUrl":"10.3103/S1068364X25601374","url":null,"abstract":"<p>Attention focuses on the selection of a hydraulic drive system and the use of hydraulic drive and hydraulic automation components for machinery: the electric depletion furnace; and the locomotive–quenching car system used in opening and closing the car’s aprons for coke discharge. The goal is to determine the best design for the hydraulic system in the pumping unit in order to ensure efficient operation of the coke plant’s machinery. The components of a pumping unit with a circulation pump are presented, as well as the hydraulic automation components for operation of the circulation pump. Efficient operation of the whole system is possible when using up-to-date cooling systems and hydraulic automation components in the circulation pump system. In particular, up-to-date hydraulic drive systems and hydraulic automation components ensure uniform coke discharge to the ramp.</p>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"68 11","pages":"944 - 948"},"PeriodicalIF":0.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147579342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of an Ultralarge System for Dry Coke Quenching 超大型干焦淬火系统的研制
IF 0.5
Coke and Chemistry Pub Date : 2026-04-01 DOI: 10.3103/S1068364X25601337
Lie Xu, Dong Han, Xiaoguang Zhang, Gaifeng Xue, Haiwen Huo, Qi Wang, Qiaonan Shi, Jian Kang
{"title":"Development of an Ultralarge System for Dry Coke Quenching","authors":"Lie Xu,&nbsp;Dong Han,&nbsp;Xiaoguang Zhang,&nbsp;Gaifeng Xue,&nbsp;Haiwen Huo,&nbsp;Qi Wang,&nbsp;Qiaonan Shi,&nbsp;Jian Kang","doi":"10.3103/S1068364X25601337","DOIUrl":"10.3103/S1068364X25601337","url":null,"abstract":"<p>The theoretical analysis, integrated innovation, and practical aspects associated with the development and introduction of an ultralarge system for the dry quenching of coke by Huatai (China) are outlined in the present work, along with the results of the new system’s operation. The innovative approaches to optimizing the industrial processes are also noted; an example is the venting of exhaust gases from the coke discharge system in an annular air duct. The operational characteristics of a demonstration quenching system of productivity 250 t/h are as follows: the temperature difference <i>T</i><sub>3</sub> – <i>T</i><sub>4</sub> in the cooling zone is less than 50°C; the temperature of the coke obtained is less than 150°C; the gas consumption in coke quenching is less than 1250 m<sup>3</sup>/t; the thermal efficiency of the system is 90%; and the productivity of the aspiration system is 20% less than for the standard design.</p>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"68 11","pages":"915 - 923"},"PeriodicalIF":0.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147579359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Preventing Deposits on Rotors of Gas Blowers and in Delivery Pipelines for Coke Oven Gas 防止鼓风机转子和焦炉煤气输送管道上的沉积物
IF 0.5
Coke and Chemistry Pub Date : 2026-04-01 DOI: 10.3103/S1068364X25601416
K. V. Pokryshkin, V. I. Ekgauz, N. V. Dementieva
{"title":"Preventing Deposits on Rotors of Gas Blowers and in Delivery Pipelines for Coke Oven Gas","authors":"K. V. Pokryshkin,&nbsp;V. I. Ekgauz,&nbsp;N. V. Dementieva","doi":"10.3103/S1068364X25601416","DOIUrl":"10.3103/S1068364X25601416","url":null,"abstract":"<p>Measures are developed for preventing deposits in the delivery pipelines for coke oven gas: specifically, reduced heating of the coke oven gas in the gas blowers; and more rapid discharge of the deposit-forming materials from the pipelines. The parameters of the process are calculated, and a system for preventing deposits is proposed.</p>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"68 12","pages":"995 - 1000"},"PeriodicalIF":0.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147606453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Using Unprofitable Coal to Produce Supercapacitor Electrodes 利用无利可图的煤生产超级电容器电极
IF 0.5
Coke and Chemistry Pub Date : 2026-04-01 DOI: 10.3103/S1068364X25601398
G. Yu. Simenyuk, N. S. Zakharov, A. N. Prigorodova  (, ), I. Yu. Zykov, V. G. Dodonov, T. S. Nechaeva, N. S. Adodin
{"title":"Using Unprofitable Coal to Produce Supercapacitor Electrodes","authors":"G. Yu. Simenyuk,&nbsp;N. S. Zakharov,&nbsp;A. N. Prigorodova \u0000 (,&nbsp;),&nbsp;I. Yu. Zykov,&nbsp;V. G. Dodonov,&nbsp;T. S. Nechaeva,&nbsp;N. S. Adodin","doi":"10.3103/S1068364X25601398","DOIUrl":"10.3103/S1068364X25601398","url":null,"abstract":"<p>The influence of the porous structure of carbon materials obtained by high-temperature (800–900°С) alkaline activation (with potassium hydroxide) of coal on the electrical capacitance of the resulting electrode materials is investigated in model electrochemical cells. The creation of materials with high electrical capacitance calls for a developed architecture of micropores and mesopores and also a large specific surface that is accessible to the electrolyte ions. Especially with slow potential scanning (up to 40 mV/s), the specific capacitance is greatest for carbon materials based on sapropelic coal (425 F/g for scanning at 2.5 mV/s) and D and T coal (469 and 402 F/g at 2.5 mV/s) with significantly developed pore structure. However, electrode materials based on anthracite, with greater specific surface on account of the higher micropore content, are characterized by lower capacitance (327 F/g at 2.5 mV/s), especially at high scanning speeds (20 F/g at 300 mV/s). For nanostructured electrode composites based on carbonized sapropelic coal filled with Fe–Pt, Co–Pt, and Fe–Pd nanoparticles, the capacitance is 20% higher, on average, than for the initial carbonizate: it is 509 F/g at 10 mV/s for carbonizate filled with Fe–Pd nanoparticles.</p>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"68 12","pages":"973 - 986"},"PeriodicalIF":0.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147606455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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