I. S. Golubev, P. P. Dik, M. O. Kazakov, O. V. Klimov, A. S. Noskov
{"title":"The Influence of Test Conditions for the Second Hydrocracking Stage Catalysts on the Time to Reach Steady-State Activity","authors":"I. S. Golubev, P. P. Dik, M. O. Kazakov, O. V. Klimov, A. S. Noskov","doi":"10.1134/S2070050423040074","DOIUrl":null,"url":null,"abstract":"<p>Catalysts of the second stage of hydrocracking are tested under different conditions, reducing the time required to reach the level of steady-state activity. Tests are performed on a laboratory testbench under conditions (temperature, pressure, and liquid hourly space velocity (LHSV)) close to industrial and typical of the second stage of hydrocracking. Introducing an additional preliminary stage at the start of tests at elevated temperatures and LHSVs while using a dimethyl disulfide solution in decane as a sulfiding mixture are shown to substantially reduce the time of experiment. Conditions of the preliminary stage that preserve the catalyst’s selectivity to diesel are selected.</p>","PeriodicalId":507,"journal":{"name":"Catalysis in Industry","volume":"15 4","pages":"434 - 442"},"PeriodicalIF":0.7000,"publicationDate":"2023-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Catalysis in Industry","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S2070050423040074","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Catalysts of the second stage of hydrocracking are tested under different conditions, reducing the time required to reach the level of steady-state activity. Tests are performed on a laboratory testbench under conditions (temperature, pressure, and liquid hourly space velocity (LHSV)) close to industrial and typical of the second stage of hydrocracking. Introducing an additional preliminary stage at the start of tests at elevated temperatures and LHSVs while using a dimethyl disulfide solution in decane as a sulfiding mixture are shown to substantially reduce the time of experiment. Conditions of the preliminary stage that preserve the catalyst’s selectivity to diesel are selected.
期刊介绍：
The journal covers the following topical areas:
Analysis of specific industrial catalytic processes: Production and use of catalysts in branches of industry: chemical, petrochemical, oil-refining, pharmaceutical, organic synthesis, fuel-energetic industries, environment protection, biocatalysis; technology of industrial catalytic processes (generalization of practical experience, improvements, and modernization); technology of catalysts production, raw materials and equipment; control of catalysts quality; starting, reduction, passivation, discharge, storage of catalysts; catalytic reactors.Theoretical foundations of industrial catalysis and technologies: Research, studies, and concepts : search for and development of new catalysts and new types of supports, formation of active components, and mechanochemistry in catalysis; comprehensive studies of work-out catalysts and analysis of deactivation mechanisms; studies of the catalytic process at different scale levels (laboratory, pilot plant, industrial); kinetics of industrial and newly developed catalytic processes and development of kinetic models; nonlinear dynamics and nonlinear phenomena in catalysis: multiplicity of stationary states, stepwise changes in regimes, etc. Advances in catalysis: Catalysis and gas chemistry; catalysis and new energy technologies; biocatalysis; nanocatalysis; catalysis and new construction materials.History of the development of industrial catalysis.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
