Catalysis in Industry最新文献_第10页

Catalytic Conversion of Flare Gas on Rh Catalysts with Subsequent Direct Monetization 火炬气在Rh催化剂上的催化转化及后续的直接货币化

IF 0.7

Catalysis in Industry Pub Date : 2022-12-16 DOI: 10.1134/S2070050422040110

A. S. Urlukov, S. I. Uskov, D. I. Potemkin, P. V. Snytnikov

引用次数: 0

Changes in the Physicochemical and Catalytic Properties of Iron–Potassium Catalysts under Operation in a Reactor of Ethylbenzene Dehydrogenation to Styrene at Nizhnekamskneftekhim 铁钾催化剂在乙苯脱氢制苯乙烯反应器运行过程中理化性质和催化性能的变化

IF 0.7

Catalysis in Industry Pub Date : 2022-12-16 DOI: 10.1134/S2070050422040092

I. R. Nabiullin, A. V. Boretskaya, M. V. Berezkina, R. R. Gil’mullin, S. R. Egorova

{"title":"Changes in the Physicochemical and Catalytic Properties of Iron–Potassium Catalysts under Operation in a Reactor of Ethylbenzene Dehydrogenation to Styrene at Nizhnekamskneftekhim","authors":"I. R. Nabiullin, A. V. Boretskaya, M. V. Berezkina, R. R. Gil’mullin, S. R. Egorova","doi":"10.1134/S2070050422040092","DOIUrl":"10.1134/S2070050422040092","url":null,"abstract":"A study of original iron–potassium catalysts of ethylbenzene (EB) dehydrogenation to styrene and industrially used catalysts: Cat-1 (imported), Cat-2 and Cat-3 (domestic) is performed. Initial samples are multiphase systems consisting of potassium ferrites, hematite, and cerianite (CeO2). The phase composition of the catalysts after two years of operation consists mainly of magnetite and cerianite, while the amount of potassium (K+) in Cat-1, Cat-2, and Cat-3 samples falls by 40, 20, and 26%, respectively. At the same time, K+ for the Cat-2 sample is distributed uniformly in granules of the waste catalyst. XRD data indicate the CSR size of its CeO2 crystals does not change appreciably. The CSR size of CeO2 crystals in the Cat-3 sample falls from 302 to 110 Å, while it grows from 284 to 419 Å in the Cat-1 sample. After two years of operation, the greatest conversion of EB (72.1%) was observed for the Cat-2 sample, and it fell from 72.3 to 57.4% on the Cat-3 sample. There is a 600–1100% drop in the waste samples’ resistance to crushing, making them unsuitable for further use.","PeriodicalId":507,"journal":{"name":"Catalysis in Industry","volume":"14 4","pages":"327 - 335"},"PeriodicalIF":0.7,"publicationDate":"2022-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4643559","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

Sorption-Enhanced Water Gas Shift Reaction over a Mechanical Mixture of the Catalyst Pt/Ce0.75Zr0.25O2 and the Sorbent NaNO3/MgO 催化剂Pt/Ce0.75Zr0.25O2和吸附剂NaNO3/MgO机械混合物上的吸附增强水煤气转移反应

IF 0.7

Catalysis in Industry Pub Date : 2022-12-16 DOI: 10.1134/S2070050422040031

A. M. Gorlova, I. E. Karmadonova, V. S. Derevshchikov, V. N. Rogozhnikov, P. V. Snytnikov, D. I. Potemkin

{"title":"Sorption-Enhanced Water Gas Shift Reaction over a Mechanical Mixture of the Catalyst Pt/Ce0.75Zr0.25O2 and the Sorbent NaNO3/MgO","authors":"A. M. Gorlova, I. E. Karmadonova, V. S. Derevshchikov, V. N. Rogozhnikov, P. V. Snytnikov, D. I. Potemkin","doi":"10.1134/S2070050422040031","DOIUrl":"10.1134/S2070050422040031","url":null,"abstract":"Results of studying the sorption-enhanced water gas shift reaction over a mechanical mixture of grains of 5 wt % Pt/Ce0.75Zr0.25O2 catalyst and 10 wt % NaNO3/MgO sorbent are presented. It is shown that pure magnesium oxide sorbs virtually no СО2 under model conditions, while its promotion with NaNO3 substantially improves the dynamic sorption capacity in the 300–350°C range of temperatures with a maximum at 320°C. The catalyst shows high activity and selectivity in the water gas shift reaction for a model mixture (CO, 11.6; H2, 61; H2O, 27.4 vol %). The concentration of CO at the outlet from the reactor is less than 1 vol % in the 220–400°C range of temperatures (the minimum is 0.3 vol % at 240°C) with СН4 at the temperatures below 320°C (0.61 vol % at this point). Using this sorbent in mixtures with a catalyst in the sorption-enhanced water gas shift reaction at 320°C substantially reduces its sorption capacity, due probably to the full conversion of NaNO3 into Na2CO3 that is not completely decomposed at the stage of regeneration. This nevertheless allows the outlet СО and СН4 concentrations to be halved, relative to values observed at this temperature in experiments with no sorbent: 6.1 × 10−4 and 8.2 × 10−2 vol % per dry gas basis at the middle of the first adsorption cycle. Prospects for using this approach in the sorption-enhanced water gas shift reaction and the need for further studies on improving the capacity and stability of the presented sorbents are described.","PeriodicalId":507,"journal":{"name":"Catalysis in Industry","volume":"14 4","pages":"349 - 356"},"PeriodicalIF":0.7,"publicationDate":"2022-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4641602","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

Industrial Implementation of Developments: Experience from Cooperation with Nizhnekamskneftekhim 发展的工业实施:与尼兹涅卡姆斯克涅特金合作的经验

IF 0.7

Catalysis in Industry Pub Date : 2022-12-16 DOI: 10.1134/S2070050422040067

A. A. Lamberov, S. E. Egorova

引用次数: 0

Dust Collector for Paraffin Dehydrogenation Units with a Fluidized Catalyst Bed 流化催化剂床石蜡脱氢装置除尘器

IF 0.7

Catalysis in Industry Pub Date : 2022-12-16 DOI: 10.1134/S2070050422040109

E. I. Salakhova, A. V. Dmitriev, V. E. Zinurov, I. R. Nabiullin, I. I. Salakhov

引用次数: 3

Catalysts in the Direct Synthesis of Organotin Compounds, Part III: Reactions between Carbofunctional Organohalides and Metallic Tin 直接合成有机锡化合物的催化剂，第三部分:碳官能化有机卤化物与金属锡的反应

IF 0.7

Catalysis in Industry Pub Date : 2022-09-12 DOI: 10.1134/S2070050422030047

P. A. Storozhenko, K. D. Magdeev, A. A. Grachev, V. I. Shiryaev

引用次数: 0

Acetylene Production Technologies in the 21st Century: Main Trends of Their Development in the Paradigm of Low-Carbon Economy of the Future 21世纪的乙炔生产技术:未来低碳经济范式下的主要发展趋势

IF 0.7

Catalysis in Industry Pub Date : 2022-09-12 DOI: 10.1134/S2070050422030023

D. A. Shlyapin, T. N. Afonasenko, D. V. Glyzdova, N. N. Leont’eva, A. V. Lavrenov

引用次数: 0

Silver Catalysts for the Partial Oxidation of Alcohols 醇部分氧化的银催化剂

IF 0.7

Catalysis in Industry Pub Date : 2022-09-12 DOI: 10.1134/S2070050422030059

O. V. Vodyankina

{"title":"Silver Catalysts for the Partial Oxidation of Alcohols","authors":"O. V. Vodyankina","doi":"10.1134/S2070050422030059","DOIUrl":"10.1134/S2070050422030059","url":null,"abstract":"The review presents an analysis of the current state in the field of partial oxidation of alcohols to carbonyl compounds on Ag catalysts, including the partial oxidation of methanol to formaldehyde, oxidation of ethylene glycol to glyoxal, and oxidation of ethanol to acetaldehyde. For methanol oxidation, conditions for BASF and ICI processes were considered, and the whole chain of transformations from natural gas to formaldehyde was evaluated from the viewpoint of exergy. Recent publications on the kinetics of partial oxidations of alcohols on silver were analyzed, including those that considered the use of a ring-shaped reactor to suppress the homogeneous decomposition stages of formaldehyde, the development of a new approach to process modeling taking into account different degrees of catalyst reactivity, and the creation of a simulator for calculating methanol oxidation based on a neural network using a genetic algorithm. The main stages of process development of partial oxidation of ethylene glycol to glyoxal on Ag catalysts are briefly described. Recent experimental and theoretical studies on the mechanisms of formation of oxygen-containing active sites on the silver surface and their participation in the conversion of alcohols into carbonyl compounds, as well as new Ag-containing catalytic composites, are presented.","PeriodicalId":507,"journal":{"name":"Catalysis in Industry","volume":"14 3","pages":"314 - 326"},"PeriodicalIF":0.7,"publicationDate":"2022-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4518690","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

Catalytic Diesel Exhaust Systems: Modern Problems and Technological Solutions for Modernization of the Oxidation Catalyst 催化柴油排气系统:氧化催化剂现代化的现代问题和技术解决方案

IF 0.7

Catalysis in Industry Pub Date : 2022-09-12 DOI: 10.1134/S2070050422030060

S. A. Yashnik

引用次数: 0

Integrated Processes of the Reforming and Isomerization of Gasoline Fractions for the Production of Environmentally Friendly Motor Gasolines 生产环保型车用汽油的汽油馏分重整和异构化一体化工艺

IF 0.7

Catalysis in Industry Pub Date : 2022-09-12 DOI: 10.1134/S2070050422030035

M. D. Smolikov, D. I. Kir’yanov, V. A. Shkurenok, L. I. Bikmetova, E. A. Belopukhov, S. S. Yablokova, K. V. Kazantsev, A. S. Belyi, A. V. Lavrenov, D. O. Kondrashev, A. V. Kleimenov

{"title":"Integrated Processes of the Reforming and Isomerization of Gasoline Fractions for the Production of Environmentally Friendly Motor Gasolines","authors":"M. D. Smolikov, D. I. Kir’yanov, V. A. Shkurenok, L. I. Bikmetova, E. A. Belopukhov, S. S. Yablokova, K. V. Kazantsev, A. S. Belyi, A. V. Lavrenov, D. O. Kondrashev, A. V. Kleimenov","doi":"10.1134/S2070050422030035","DOIUrl":"10.1134/S2070050422030035","url":null,"abstract":"The data on the development and study of new catalysts for the reforming and isomerization of gasoline fractions from the Center of New Chemical Technologies BIC (Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences), including the experience in the industrial appliction of reforming catalyst PR-81, are presented. A new catalyst of increased acidity is developed for the reforming of gasoline fractions to ensure a 3–5 wt % reduction in the content of aromatic hydrocarbons in the reformate. A new sulfated zirconia catalyst supported on a porous alumina matrix is developed for the isomerization of the C5–C6 hydrocarbon fraction. An efficient catalyst based on tungstated zirconia is proposed for isomerization of the С7 hydrocarbon fraction. A flowsheet of integrated reforming and isomerization processes is proposed on the basis of the new catalysts to ensure the production of Euro-5 and Euro-6 motor gasolines alongside promising gasolines with reduced contents of aromatic hydrocarbons.","PeriodicalId":507,"journal":{"name":"Catalysis in Industry","volume":"14 3","pages":"268 - 282"},"PeriodicalIF":0.7,"publicationDate":"2022-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4520039","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