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The effect of testing conditions on the time of establishing a steady-state activity of the catalysts for the second hydrocracking step 考察了试验条件对加氢裂化第二步催化剂稳定活性建立时间的影响
Kataliz v promyshlennosti Pub Date : 2023-03-30 DOI: 10.18412/1816-0387-2023-2-73-82
I. S. Golubev, P. Dik, M. O. Kazakov, O. Klimov, A. Noskov
{"title":"The effect of testing conditions on the time of establishing a steady-state activity of the catalysts for the second hydrocracking step","authors":"I. S. Golubev, P. Dik, M. O. Kazakov, O. Klimov, A. Noskov","doi":"10.18412/1816-0387-2023-2-73-82","DOIUrl":"https://doi.org/10.18412/1816-0387-2023-2-73-82","url":null,"abstract":"Catalysts for the second hydrocracking step were tested under different conditions in order to reduce the time of establishing their steadystate activity. The tests were carried out at a laboratory bench under the conditions close to industrial operation and typical of the second hydrocracking step. The introduction of an additional step at the onset of testing with the increased temperature and feed space velocity as well as the use of a dimethyl disulfide solution in decane as a sulfurization mixture were shown to considerably reduce the duration of experiment. Conditions of the preliminary step were selected so as to preserve the catalyst selectivity toward the diesel fraction.","PeriodicalId":17783,"journal":{"name":"Kataliz v promyshlennosti","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79140613","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
The transformation of amorphous aluminum oxide during the catalytic dehydration of aromatic alcohol 芳香醇催化脱水过程中无定形氧化铝的转化
Kataliz v promyshlennosti Pub Date : 2023-03-29 DOI: 10.18412/1816-0387-2023-2-48-57
A. Boretskaya, M. Farid, S. Egorova, A. Lamberov
{"title":"The transformation of amorphous aluminum oxide during the catalytic dehydration of aromatic alcohol","authors":"A. Boretskaya, M. Farid, S. Egorova, A. Lamberov","doi":"10.18412/1816-0387-2023-2-48-57","DOIUrl":"https://doi.org/10.18412/1816-0387-2023-2-48-57","url":null,"abstract":"A wide application of aluminum oxides in the synthesis of heterogeneous catalysts for petrochemistry and oil refining makes it necessary to reveal factors determining the efficiency of the catalytic systems. However, the literature provides no data concerning the effect produced by the amorphous phase in aluminum oxide catalysts on characteristics of the catalytic reaction. Usually the content of amorphous phase is not categorized; however, its presence may significantly deteriorate the catalyst efficiency. X-ray diffraction analysis, low-temperature nitrogen adsorption, electron microscopy and temperature-programmed desorption of ammonia were used in this work to examine samples of the amorphous aluminum oxide obtained from two different precursors. Catalytic properties of the samples were investigated during the vaporphase dehydration of 1-phenylethanol to styrene. It was shown for the first time that the transformation of amorphous aluminum oxide in the catalytic reaction decreased the conversion of alcohol from 84 (for the fresh catalyst) to 64 % (for the regenerated sample). Crystallization of amorphous aluminum oxide by the high-temperature treatment enhanced the catalytic performance, but it did not reach the desired values due to a considerable deterioration of the textural characteristics and acidic properties of the aluminum oxide surface.","PeriodicalId":17783,"journal":{"name":"Kataliz v promyshlennosti","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78468611","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
The effect of the support nature and palladium dispersion on activity and selectivity of the palladium catalyst in hydrogenation of sunflower oil 载体性质和钯分散对钯催化剂在葵花籽油加氢反应中的活性和选择性的影响
Kataliz v promyshlennosti Pub Date : 2023-03-29 DOI: 10.18412/1816-0387-2023-2-34-47
A. V. Romanenko, P. Simonov, M. A. Kulagina, S. I. Udalova, I. N. Voropayev, G. A. Bukhtiyarova
{"title":"The effect of the support nature and palladium dispersion on activity and selectivity of the palladium catalyst in hydrogenation of sunflower oil","authors":"A. V. Romanenko, P. Simonov, M. A. Kulagina, S. I. Udalova, I. N. Voropayev, G. A. Bukhtiyarova","doi":"10.18412/1816-0387-2023-2-34-47","DOIUrl":"https://doi.org/10.18412/1816-0387-2023-2-34-47","url":null,"abstract":"Samples of the powdered catalysts Pd/C and Pd/Ox, which were synthesized by depositing 0.5 and 1.0 wt.% Pd on carbon materials (Sibunit 159k, thermal black Т-900, Vulcan XC-72R) and oxide supports (Ox: γ-Al2O3, Cr2O3, Ga2O3, TiO2, Ta2O5 and V2O5, and kieselguhr FW-70), were studied. Their catalytic properties were investigated in the partial hydrogenation of sunflower oil. Comparative testing of the catalysts was performed in the kinetic mode using a static Parr reactor to estimate their activity and trans-isomerization selectivity. The effect of the average size of supported palladium particles (dCO) on the indicated characteristics in a wide range of dCO values was discussed.","PeriodicalId":17783,"journal":{"name":"Kataliz v promyshlennosti","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91021589","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
Bifunctional cobalt catalyst for the synthesis of waxy diesel fuel by the Fischer–Tropsch method – from development to introduction. Part 2. Optimization of the catalyst component composition 用费托法合成含蜡柴油的双功能钴催化剂——从开发到引进。第2部分。催化剂组分组成的优化
Kataliz v promyshlennosti Pub Date : 2023-03-27 DOI: 10.18412/1816-0387-2023-2-15-25
R. Yakovenko, V. G. Bakun, I. Zubkov, O. Papeta, A. N. Saliyev, A. Savost’yanov
{"title":"Bifunctional cobalt catalyst for the synthesis of waxy diesel fuel by the Fischer–Tropsch method – from development to introduction. Part 2. Optimization of the catalyst component composition","authors":"R. Yakovenko, V. G. Bakun, I. Zubkov, O. Papeta, A. N. Saliyev, A. Savost’yanov","doi":"10.18412/1816-0387-2023-2-15-25","DOIUrl":"https://doi.org/10.18412/1816-0387-2023-2-15-25","url":null,"abstract":"The effect exerted by the content of metallic (Co-Al2O3/SiO2 catalyst) and acidic (ZSM-5 zeolite in the H-form) components on the properties of bifunctional catalyst for the integrated synthesis of waxy diesel fuel by the Fischer–Tropsch method was studied. Catalysts represented by a composite mixture with a boehmite binder were characterized by XRD, BET and TPR methods. The testing was performed in a flow reactor with a fixed catalyst bed at a pressure of 2.0 MPa, temperature 240 °С and gas hourly space velocity 1000 h–1. Activity and selectivity of the catalysts as well as the fractional and hydrocarbon composition of the products were investigated in dependence on the ratio of components. It was found that productivity of the synthesis for С5+ hydrocarbons and selectivity for the С11–С18 diesel fraction products with a high content of isomeric products correlated with the ratio of metallic and acidic components in the catalysts. The composition of the catalyst recommended for the diesel fuel production has the 1.17 ratio of metallic and acidic components.","PeriodicalId":17783,"journal":{"name":"Kataliz v promyshlennosti","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87406756","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
The effect of water-soluble polymers on the dynamics of carbon dioxide sorption by lime sorbents 水溶性聚合物对石灰吸附剂吸附二氧化碳动力学的影响
Kataliz v promyshlennosti Pub Date : 2023-03-27 DOI: 10.18412/1816-0387-2023-2-6-14
V. Derevschikov, O. Selyutina
{"title":"The effect of water-soluble polymers on the dynamics of carbon dioxide sorption by lime sorbents","authors":"V. Derevschikov, O. Selyutina","doi":"10.18412/1816-0387-2023-2-6-14","DOIUrl":"https://doi.org/10.18412/1816-0387-2023-2-6-14","url":null,"abstract":"The effect of water-soluble polymers with different structure on the sorption properties of nonregenerable lime sorbents of carbon dioxide was studied. It was found that the introduction of water-soluble polymers into the sorbents could either decrease or increase the protective power time of the sorbents. To explain the revealed regularities, pore structure of the sorbents was investigated, molecular-dynamic modeling of the carbon dioxide transport was performed, and CO2 diffusion coefficients in water-polymer solutions were calculated. The results of the modeling correlate with the sorption experiment data: a high dynamic sorption capacity of the sorbent is reached after adding a water-polymer medium with a high CO2 diffusion coefficient. The results obtained can be used both to optimize the systems for the recovery of carbon dioxide from gas mixtures and to intensify mass transfer in the systems intended for photo- and electrocatalytic conversion of CO2 to useful products.","PeriodicalId":17783,"journal":{"name":"Kataliz v promyshlennosti","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85930993","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
Decomposition of methanol to syngas on supported Pt-containing catalysts 甲醇在负载型含pt催化剂上分解为合成气
Kataliz v promyshlennosti Pub Date : 2023-03-27 DOI: 10.18412/1816-0387-2023-2-26-33
S. Badmaev, V. Belyaev, D. Potemkin, P. Snytnikov, V. Sobyanin, V. Kharton
{"title":"Decomposition of methanol to syngas on supported Pt-containing catalysts","authors":"S. Badmaev, V. Belyaev, D. Potemkin, P. Snytnikov, V. Sobyanin, V. Kharton","doi":"10.18412/1816-0387-2023-2-26-33","DOIUrl":"https://doi.org/10.18412/1816-0387-2023-2-26-33","url":null,"abstract":"Properties of supported Pt-containing granular (Pt/Ce0.75Zr0.25O2–δ) and monolithic structured (Pt/Ce0.75Zr0.25O2–δ /η-Al2O3 /FeCrAl) catalysts were studied in the methanol decomposition to syngas for feeding solid oxide fuel cells (SOFC). The application of the monolithic structured catalyst in the methanol decomposition reaction was shown to be promising. The addition of a small oxygen amount to the initial mixture was found to prevent the formation of carbon, thus enhancing the stability of catalyst operation. The proposed monolithic structured catalyst 0.15 wt.% Pt/8 wt.% Ce0.75Zr0.25O2–δ /6 wt.% η-Al2O3 /FeCrAl at atmospheric pressure, temperature of ca. 400 °C, feed rate of the reaction mixture 5.6 L/(gcat·h) and volumetric ratio СН3ОН/air = 1 can provide the complete conversion of methanol to syngas with the total content of H2 and СО of ca. 64 vol.% and the syngas output of ca. 6.7 L(Н2 + СО)/(gcat· h).","PeriodicalId":17783,"journal":{"name":"Kataliz v promyshlennosti","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76857473","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
SiO2- and Al2O3-Supported Sulfated Zirconiа Catalysts for Hexane Isomerization. Effect of the Support Nature SiO2和al2o3负载的硫酸锆催化剂用于己烷异构化。支持性质的影响
Kataliz v promyshlennosti Pub Date : 2023-01-18 DOI: 10.18412/1816-0387-2023-1-67-74
M. Smolikov, L. I. Bikmetova, K. V. Kazantsev, V. Shkurenok, S. S. Yablokova, A. V. Lavrenov
{"title":"SiO2- and Al2O3-Supported Sulfated Zirconiа Catalysts for Hexane Isomerization. Effect of the Support Nature","authors":"M. Smolikov, L. I. Bikmetova, K. V. Kazantsev, V. Shkurenok, S. S. Yablokova, A. V. Lavrenov","doi":"10.18412/1816-0387-2023-1-67-74","DOIUrl":"https://doi.org/10.18412/1816-0387-2023-1-67-74","url":null,"abstract":"The effect of the support nature on the performance of hexane isomerization reaction was studied for the sulfated zirconiа catalysts supported on SiO2 and Al2O3, which have different textural characteristics. It was shown that a higher conversion of hexane is reached over sulfated zirconiа catalysts supported on aluminum oxides. IR spectroscopy of adsorbed CO revealed that the concentration of Broensted acid sites (BAS), which are characterized by adsorbed CO with the absorption band (a.b.) at 2170 cm–1, and strong Lewis acid sites (LAS), which are characterized by adsorbed CO with a.b. at 2210 and 2224 cm–1, is higher in the Al2O3-supported catalysts compared to the SiO2-supported ones. In the Al2O3-supported catalysts with different textural characteristics, an increase in the contribution of LAS to the total acidity essentially increases the yield of high-octane 2,2-dimethylbutane and the depth of hexane isomerization.","PeriodicalId":17783,"journal":{"name":"Kataliz v promyshlennosti","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85432538","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: 1
Catalysis in Automotive Industry. Mutual Development and Sate of the Art 汽车工业中的催化。共同发展与艺术水平
Kataliz v promyshlennosti Pub Date : 2023-01-18 DOI: 10.18412/1816-0387-2023-1-75-81
S. P. Denisov, E. Alikin, E. Baksheev, V. Rychkov
{"title":"Catalysis in Automotive Industry. Mutual Development and Sate of the Art","authors":"S. P. Denisov, E. Alikin, E. Baksheev, V. Rychkov","doi":"10.18412/1816-0387-2023-1-75-81","DOIUrl":"https://doi.org/10.18412/1816-0387-2023-1-75-81","url":null,"abstract":"Estimates and prospects of the catalytic technologies applied on-board for neutralization of automotive exhaust gases are reported. In the next decade, the expected aggregate production of motor vehicles will exceeds 1 billion units; 75 % of them will be equipped with internal combustion engines (ICE), which should have a system for neutralization of exhaust gases. The development of catalytic technologies for neutralization of automotive exhaust gases is mutually stimulated by stiffening the environmental protection standards and improving the ICE. For example, the European standards have moved from Euro-1 to Euro-6d. The introduction of Euro-7 standards in Europe and their analogs in some countries is planned for year 2025. The paper considers also various concepts of the systems for neutralization of exhaust gases intended for gasoline and diesel engines that comply with Euro-7 standards.","PeriodicalId":17783,"journal":{"name":"Kataliz v promyshlennosti","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75510676","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
The Development and Application of GTL Technology in Russia GTL技术在俄罗斯的发展与应用
Kataliz v promyshlennosti Pub Date : 2023-01-17 DOI: 10.18412/1816-0387-2023-1-57-66
A. Savost’yanov, R. Yakovenko
{"title":"The Development and Application of GTL Technology in Russia","authors":"A. Savost’yanov, R. Yakovenko","doi":"10.18412/1816-0387-2023-1-57-66","DOIUrl":"https://doi.org/10.18412/1816-0387-2023-1-57-66","url":null,"abstract":"The experience of commercial operation of synthetic hydrocarbon technology in Russia at Novocherkassk Plant of Synthetic Products (NPSP) in Novocherkassk, Rostov region, is integrated in the paper. More than 200 items of marketable general-purpose products have been manufactured at NPSP. Information on the production of syngas from natural gas, synthesis of hydrocarbons, and catalysts for the process is reported.","PeriodicalId":17783,"journal":{"name":"Kataliz v promyshlennosti","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76780517","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
Alkoxycarbonylation of Unsaturated Phytogenic Substrates Using Palladium Catalysts as a Way for Obtaining Ester Products 钯催化剂催化植物源性不饱和底物烷氧羰基化制备酯类产物
Kataliz v promyshlennosti Pub Date : 2023-01-17 DOI: 10.18412/1816-0387-2023-1-37-55
N. Sevostyanova, S. Batashev
{"title":"Alkoxycarbonylation of Unsaturated Phytogenic Substrates Using Palladium Catalysts as a Way for Obtaining Ester Products","authors":"N. Sevostyanova, S. Batashev","doi":"10.18412/1816-0387-2023-1-37-55","DOIUrl":"https://doi.org/10.18412/1816-0387-2023-1-37-55","url":null,"abstract":"The synthesis of esters by alkoxycarbonylation of unsaturated phytogenic substrates makes it possible to use alternative feedstocks and solve a series of problems in the chemical industry: resource saving, waste minimization, and improvement of environmental safety and economicalefficiency of the processes being implemented. However, only the production of methyl methacrylate, which includes methoxycarbonylation of ethylene as one of the steps, has been implemented on the industrial scale by now. The aim of this review is to systematize and analyze the literature data published since 2010 on the synthesis of esters by alkoxycarbonylation of phytogenic substrates under mild conditions. It was found that the alkoxycarbonylation of pentenoic and undecenoic acids, oleic, linoleic and erucic acids or their esters as well as terpene compounds – citronellic acid and b-myrcene – has been performed in the indicated period. High yields and selectivities to the linear structured products were reached under mild conditions mostly due to the application of homogeneous palladium-diphosphine catalysts. Results of these studies open up ample opportunities for implementing new industrial processes of alkoxycarbonylation of phytogenic substrates aimed to obtain the advanced chemical products, particularly polymers.","PeriodicalId":17783,"journal":{"name":"Kataliz v promyshlennosti","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72749505","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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