Catalysis in Industry最新文献_第8页

One-Pot Hydrolysis-Hydrogenation of Potato Starch to Sorbitol Using Bifunctional Catalyst Ru/Сs3HSiW12O40 双功能催化剂Ru/Сs3HSiW12O40催化马铃薯淀粉一锅水解加氢制山梨醇

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Catalysis in Industry Pub Date : 2023-05-23 DOI: 10.1134/S207005042301004X

N. V. Gromov, T. B. Medvedeva, V. N. Panchenko, O. P. Taran, M. N. Timofeeva, V. N. Parmon

引用次数: 1

Hydrogenation of 1,3-Pentadiene on Modified Pd-Containing Catalysts 改性含pd催化剂上1,3-戊二烯的加氢反应

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Catalysis in Industry Pub Date : 2022-12-16 DOI: 10.1134/S2070050422040055

L. M. Kustov, A. L. Tarasov, A. L. Kustov

引用次数: 0

Comparative Analysis of the Properties of Biocatalysts Based on Chymotrypsin Immobilized on Polysaccharide Supports 多糖载体固定化凝乳胰蛋白酶生物催化剂性能的比较分析

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Catalysis in Industry Pub Date : 2022-12-16 DOI: 10.1134/S2070050422040043

A. A. Krasnoshtanova, A. D. Bezyaeva

引用次数: 0

Creating a Heterohomogeneous Catalytic System for the Alkylation of Benzene with Ethylene through the Reaction beteen Carbon Tetrachloride and Aluminum Alloys 通过四氯化碳与铝合金反应建立苯与乙烯烷基化的非均相催化体系

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Catalysis in Industry Pub Date : 2022-12-16 DOI: 10.1134/S207005042204002X

A. B. Arbuzov, V. A. Drozdov, A. V. Lavrenov, N. N. Leont’eva

{"title":"Creating a Heterohomogeneous Catalytic System for the Alkylation of Benzene with Ethylene through the Reaction beteen Carbon Tetrachloride and Aluminum Alloys","authors":"A. B. Arbuzov, V. A. Drozdov, A. V. Lavrenov, N. N. Leont’eva","doi":"10.1134/S207005042204002X","DOIUrl":"10.1134/S207005042204002X","url":null,"abstract":"The in situ formation of a catalytic heterohomogeneous system containing Al–M alloy (M is Ni, Co, Cu) and Al(M)/Cl complex in a benzene–ethylene medium at a temperature of 80°C and a pressure of 0.2–0.3 MPa is studied. The characteristic patterns of interaction between Al–M alloys activated with a liquid metal Ga–In eutectic and a chlorinating agent (CCl4) with the formation of catalytically active metal–aluminum chloride Al(M)/Cl complexes are established. Results from spectrokinetic measurements show the order of the reactivity of activated alloys with respect to excess CCl4 is Al–Cu ≈ Al–Ni > Al > Al–Co. The highest catalytic activity is displayed by nickel–aluminum chloride complexes whose selectivity toward ethylbenzene is 48%. Data from IR and UV-VIS spectroscopy show that the structure and composition of metal chloride complexes formed in situ in the aromatic reaction medium is determined by a combination of coupled ionic pairs ([{text{AlC}}{{{text{l}}}_{4}}]_{{{text{tetr}}}}^{ - }{text{/[NiC}}{{{text{l}}}_{{text{6}}}}]_{{{text{oct}}}}^{{4-}}) and (left[ {{text{AlC}}{{{text{l}}}_{{text{4}}}}} right]_{{{text{tetr}}}}^{ - }/left[ {{text{CuC}}{{{text{l}}}_{{text{2}}}}} right]_{{{text{lin}}}}^{ - }), which are stabilized by (C6H5)3C+ carbocation.","PeriodicalId":507,"journal":{"name":"Catalysis in Industry","volume":"14 4","pages":"363 - 368"},"PeriodicalIF":0.7,"publicationDate":"2022-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4641603","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

Key Intermediates in the Hydrogenation of Carboxylic Acids on the Pt–ReOx/TiO2 Catalyst Pt-ReOx /TiO2催化剂上羧酸加氢的关键中间体

IF 0.7

Catalysis in Industry Pub Date : 2022-12-16 DOI: 10.1134/S2070050422040079

N. V. Makolkin, E. A. Paukshtis, V. V. Kaichev, A. P. Suknev, B. S. Bal’zhinimaev, H. U. Kim, J. Jae

引用次数: 0

Production of Monomers on the Basis of Catalytic Dehydrogenation Processes at Nizhnekamskneftekhim 在催化脱氢工艺的基础上生产单体

IF 0.7

Catalysis in Industry Pub Date : 2022-12-16 DOI: 10.1134/S2070050422040080

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

引用次数: 0

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

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

A. A. Lamberov, S. E. Egorova

引用次数: 0