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Enrichment of Small Steam Coal Classes by Pneumatic Separation 气动分选富集小动力煤的研究
IF 0.6
Coke and Chemistry Pub Date : 2026-07-21 DOI: 10.3103/S1068364X26600338
Yu. F. Patrakov, S. A. Semenova, S. M. Nikitenko, A. A. Stepanenko, A. I. Stepanenko
{"title":"Enrichment of Small Steam Coal Classes by Pneumatic Separation","authors":"Yu. F. Patrakov,&nbsp;S. A. Semenova,&nbsp;S. M. Nikitenko,&nbsp;A. A. Stepanenko,&nbsp;A. I. Stepanenko","doi":"10.3103/S1068364X26600338","DOIUrl":"10.3103/S1068364X26600338","url":null,"abstract":"<div><p>The enrichment of pin coal (≤13 mm) is considered for four samples of ash content 32–40%. Dry enrichment by pneumatic separation is used, resulting in the following distinct components: concentrate, an intermediate product, and waste (tailings). The intermediate product predominates; its ash content is 26–35%. The ash content of the tailings is 73–88%.</p></div>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"69 4","pages":"188 - 193"},"PeriodicalIF":0.6,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148519516","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
Prospects for the Use of Lignite in Coking Batch. 1. Granulometric Composition and Drop Test Data 褐煤在焦化批料中的应用前景。颗粒组成和跌落试验数据
IF 0.6
Coke and Chemistry Pub Date : 2026-07-21 DOI: 10.3103/S1068364X26600351
R. Yu. Kovalev, A. P. Nikitin, A. N. Zaostrovsky
{"title":"Prospects for the Use of Lignite in Coking Batch. 1. Granulometric Composition and Drop Test Data","authors":"R. Yu. Kovalev,&nbsp;A. P. Nikitin,&nbsp;A. N. Zaostrovsky","doi":"10.3103/S1068364X26600351","DOIUrl":"10.3103/S1068364X26600351","url":null,"abstract":"<p>The coking of batch containing lignite and coal of limited metamorphic development is studied experimentally. Up to 10% lignite is included in the batch. The batch undergoes batch coking at temperatures up to 1000°C. The yields of coke and volatiles and the ash content are determined. The size distribution of the coke is established. Drop test indices are determined for the coke.</p>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"69 4","pages":"199 - 204"},"PeriodicalIF":0.6,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148519519","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
Biooxidation Rates of Diatomic Phenols and the Color of Treated Coke Plant Wastewater 焦化废水处理后双原子酚的生物氧化速率及颜色
IF 0.6
Coke and Chemistry Pub Date : 2026-06-22 DOI: 10.3103/S1068364X26600302
I. V. Nevolina, T. M. Sabirova
{"title":"Biooxidation Rates of Diatomic Phenols and the Color of Treated Coke Plant Wastewater","authors":"I. V. Nevolina,&nbsp;T. M. Sabirova","doi":"10.3103/S1068364X26600302","DOIUrl":"10.3103/S1068364X26600302","url":null,"abstract":"<p>In the adaptation of local nitrifying bacteria for the treatment of coke plant wastewater, research shows that the development of nitrification has a positive influence on characteristics of the treated water such as the color, transparency, and chemical oxygen demand (COD). The rates of biooxidation of the basic pollutants in coke plant wastewater, including diatomic phenols, are compared when using cumulative cultures obtained by repeated cultivation. The mean oxidation rates of the pollutants are of the same order of magnitude: 2.29–4.82 mg/L for the same initial concentration. Of the diatomic phenols, those with the greatest effect on the color of the treated wastewater are metabolites formed in the oxidation of pyrocatechol.</p>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"69 3","pages":"153 - 158"},"PeriodicalIF":0.6,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148285406","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
Role of Coke Production in Russia’s Steel Industry 焦炭生产在俄罗斯钢铁工业中的作用
IF 0.6
Coke and Chemistry Pub Date : 2026-06-22 DOI: 10.3103/S1068364X26600247
A. D. Stern, L. Ya. Rytnikova, S. A. Kosogorov
{"title":"Role of Coke Production in Russia’s Steel Industry","authors":"A. D. Stern,&nbsp;L. Ya. Rytnikova,&nbsp;S. A. Kosogorov","doi":"10.3103/S1068364X26600247","DOIUrl":"10.3103/S1068364X26600247","url":null,"abstract":"","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"69 3","pages":"91 - 100"},"PeriodicalIF":0.6,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148285409","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
Quality of Adsorbent Oils for Phenolic Hydrocarbon Capture from Coke Oven Gas 焦炉煤气中捕集酚醛烃吸附剂油的质量
IF 0.6
Coke and Chemistry Pub Date : 2026-06-22 DOI: 10.3103/S1068364X26600260
N. V. Dementieva, A. V. Sablin, V. I. Ekgauz
{"title":"Quality of Adsorbent Oils for Phenolic Hydrocarbon Capture from Coke Oven Gas","authors":"N. V. Dementieva,&nbsp;A. V. Sablin,&nbsp;V. I. Ekgauz","doi":"10.3103/S1068364X26600260","DOIUrl":"10.3103/S1068364X26600260","url":null,"abstract":"<p>At coke plants, phenolic hydrocarbons are removed from coke oven gas using adsorbent oils derived from coal and petroleum. That process yields a commercial product: raw benzene. Analysis of the deterioration of such absorbent oils over time gives rise to a practical suggestion: for more efficient generation of raw benzene, ensuring the specified characteristics of the treated coke oven gas (for example, the residual content of phenolic hydrocarbons and naphthalene), the use of individual units to produce absorbent oil of the required quality is promising.</p>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"69 3","pages":"134 - 139"},"PeriodicalIF":0.6,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148285410","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
Artificial Intelligence in the Microscopic Analysis of Mesophase Pitch 人工智能在中间相沥青微观分析中的应用
IF 0.6
Coke and Chemistry Pub Date : 2026-06-22 DOI: 10.3103/S1068364X26600223
S. A. Klyuev, T. D. Nepomnyashchikh
{"title":"Artificial Intelligence in the Microscopic Analysis of Mesophase Pitch","authors":"S. A. Klyuev,&nbsp;T. D. Nepomnyashchikh","doi":"10.3103/S1068364X26600223","DOIUrl":"10.3103/S1068364X26600223","url":null,"abstract":"<p>Mesophase pitch is a critically important precursor in the production of high-quality carbon materials such as high-modulus carbon fibers, synthetic graphite, and needle coke. Traditionally, the key parameter—the content and morphology of liquid crystal mesophase—is monitored by subjective visual analysis of microphotographs. This method lacks accuracy, reproducibility, and speed. In the present work, the introduction of artificial intelligence (AI) and machine learning is shown to ensure objective and rapid analysis of mesophase pitch; its benefits are outlined. The potential of deep learning methods—in particular, semantic segmentation and object detection—in automatic quantitative and morphological analysis of mesophase pitch on the basis of optical microphotographs is considered. The use of AI regression models to establish correlations between the pitch structure and the properties of the final product is also discussed. The introduction of artificial intelligence permits completely automated determination of the mesophase content, with objective and highly accurate results; detailed morphological analysis of spherulites (size, distribution, shape); quality monitoring and early defect diagnostics in real time; and the creation of digital twins of samples and predictive models for optimizing the industrial process. The switch from analysis based on expert assessment to systems based on artificial intelligence and machine learning constitutes a technological breakthrough in quality control of mesophase pitch. It permits a new level of standardization, accelerates research, and shortens the production cycle. That is essential to competitiveness in the market for advanced carbon materials.</p>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"69 3","pages":"108 - 113"},"PeriodicalIF":0.6,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148285434","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
Comparison of Chemical Activation Methods for Sorbent Production from Petroleum Coking Additive 石油焦化添加剂生产吸附剂的化学活化方法比较
IF 0.6
Coke and Chemistry Pub Date : 2026-06-22 DOI: 10.3103/S1068364X26600259
E. I. Andreikov, K. A. Chistyakov, J. A. Dikovinkina
{"title":"Comparison of Chemical Activation Methods for Sorbent Production from Petroleum Coking Additive","authors":"E. I. Andreikov,&nbsp;K. A. Chistyakov,&nbsp;J. A. Dikovinkina","doi":"10.3103/S1068364X26600259","DOIUrl":"10.3103/S1068364X26600259","url":null,"abstract":"<p>Carbon sorbents may be produced by chemical activation of petroleum coking additive. To optimize this process and reduce costs, the performance of different chemical activators is compared. Low-temperature nitrogen adsorption–desorption is used to study the textural characteristics of the products, including the specific surface (determined by the BET method), the total pore volume, the micropore volume, and the size distribution of the pores. The adsorption of methylene blue and iodine by the products is studied. Sorbents with higher mesopore content may be obtained if hybrid systems are used—in particular, mixtures of alkaline activators with templating agents.</p>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"69 3","pages":"125 - 133"},"PeriodicalIF":0.6,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148285405","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
Design Work at VUKhIN VUKhIN的设计工作
IF 0.6
Coke and Chemistry Pub Date : 2026-06-22 DOI: 10.3103/S1068364X26600211
K. V. Pokryshkin, M. S. Vlasov
{"title":"Design Work at VUKhIN","authors":"K. V. Pokryshkin,&nbsp;M. S. Vlasov","doi":"10.3103/S1068364X26600211","DOIUrl":"10.3103/S1068364X26600211","url":null,"abstract":"<p>For more than 25 years, VUKhIN has been active in the design of coke, petrochemical, and chemical plants in Russia and beyond. VUKhIN has established itself as an experienced design organization, serving as a general designer.</p>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"69 3","pages":"105 - 107"},"PeriodicalIF":0.6,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148285436","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
Adsorption of Ferrocenium Cation from Acidic Aqueous Solutions onto Humic Acids and Humin of Brown Coal 酸性水溶液中二茂铁阳离子在褐煤腐植酸和腐植素上的吸附
IF 0.6
Coke and Chemistry Pub Date : 2026-06-22 DOI: 10.3103/S1068364X2660017X
S. O. Karabaev, A. V. Kharchenko, I. M. Lokshina, A. K. Dzhunushalieva, I. P. Gainullina, L. Greiner, A. Herbst
{"title":"Adsorption of Ferrocenium Cation from Acidic Aqueous Solutions onto Humic Acids and Humin of Brown Coal","authors":"S. O. Karabaev,&nbsp;A. V. Kharchenko,&nbsp;I. M. Lokshina,&nbsp;A. K. Dzhunushalieva,&nbsp;I. P. Gainullina,&nbsp;L. Greiner,&nbsp;A. Herbst","doi":"10.3103/S1068364X2660017X","DOIUrl":"10.3103/S1068364X2660017X","url":null,"abstract":"<p>Ferrocenium cation and methylene blue are shown to quantify and compare the specific surface area of humic acids and humin as alternative probes for the characterisation of adsorption properties. The isothermal adsorption of ferrocenium cation from acidic aqueous solutions onto initial and mechanochemically dispersed samples of humic acids and brown coal humin was investigated. It was found that the adsorption characteristic differs. For humic acids, the interaction is cation–π contact and π–π stacking between the ferrocenium cation and surface aromatic fragments of the sorbent supramolecule, as well as hydrophobic interaction. For humin, the porous structure gives rise to additional adsorption with multiple cation–π contacts with aromatic walls.</p>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"69 3","pages":"167 - 172"},"PeriodicalIF":0.6,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148285437","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
Influence of Moisture Content in Absorbent Oil on Raw Benzene Production at Coke Plants 吸油含水率对焦化厂原料苯生产的影响
IF 0.6
Coke and Chemistry Pub Date : 2026-06-22 DOI: 10.3103/S1068364X26600272
A. V. Sablin, V. I. Ekgauz, E. O. Sablina
{"title":"Influence of Moisture Content in Absorbent Oil on Raw Benzene Production at Coke Plants","authors":"A. V. Sablin,&nbsp;V. I. Ekgauz,&nbsp;E. O. Sablina","doi":"10.3103/S1068364X26600272","DOIUrl":"10.3103/S1068364X26600272","url":null,"abstract":"<p>The influence of the moisture content in absorbent oil on the efficiency of raw benzene production in the byproduct capture shop at a coke plant is considered. Increase in moisture content of the absorbent is found to lower the efficiency with which phenolic hydrocarbons are absorbed from coke oven gas (on increase of decrease in the active gas–oil contact surface, total capacity of the absorbent, etc.) and subsequently desorbed from the oil in the benzene department. The economic consequences of wetting the absorbent and the use of wet oil are analyzed. In calculations of absorption, the quantitative characteristics negatively affecting the process are determined. The need to minimize the water content in the absorbent oil is confirmed. It is important to take account of possible wetting of the absorbent in organizing raw benzene production and in designing the heat exchangers for the benzene department.</p>","PeriodicalId":519,"journal":{"name":"Coke and Chemistry","volume":"69 3","pages":"140 - 143"},"PeriodicalIF":0.6,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148285407","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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