Kataliz v promyshlennosti最新文献_第8页

Comprehensive comparison of high productivity cobalt catalysts for Fischer – Tropsch synthesis with different types of heat-conductive frames 不同类型导热骨架的高生产率钴费托合成催化剂的综合比较

Kataliz v promyshlennosti Pub Date : 2022-07-19 DOI: 10.18412/1816-0387-2022-4-6-21

K. Gryaznov, L. V. Sineva, E. Asalieva, V. Mordkovich

引用次数: 1

Sorption-catalytic steam conversion of CO on a mechanical mixture of Pt/Ce0.75Zr0.25O2 catalyst and NaNO3/MgO sorbent Pt/Ce0.75Zr0.25O2催化剂和NaNO3/MgO吸附剂的机械混合吸附-催化蒸汽转化CO

Kataliz v promyshlennosti Pub Date : 2022-07-19 DOI: 10.18412/1816-0387-2022-4-28-35

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

{"title":"Sorption-catalytic steam conversion of CO on a mechanical mixture of Pt/Ce0.75Zr0.25O2 catalyst and NaNO3/MgO sorbent","authors":"A. Gorlova, I. E. Karmadonova, V. S. Derevshchikov, V. Rogozhnikov, P. Snytnikov, D. Potemkin","doi":"10.18412/1816-0387-2022-4-28-35","DOIUrl":"https://doi.org/10.18412/1816-0387-2022-4-28-35","url":null,"abstract":"The sorption-catalytic steam conversion of CO using a mechanical mixture of 5 wt.% Pt/Ce0.75Zr0.25O2 catalyst grains and 10 mol.% NaNO3/MgO sorbent was studied. It was shown under the model conditions that initially MgO adsorbs СО2 only slightly, whereas its promotion with NaNO3 leads to a considerable growth of the adsorption dynamic capacity in the temperature range of 300–350 °С with a maximum at 320 °С. High activity and selectivity of the catalyst in steam conversion of CO were demonstrated for a model mixture with the composition (vol.%) 11.6 CO, 61 H2 and 27.4 H2O: the concentration of СО at the reactor outlet did not exceed 1 vol.% in the temperature range of 220– 400 °С (the minimum value of 0.3 vol.% was observed at 240 °С), and СН4 – at temperatures below 320 °С (0.61 vol.% at this point). The use of the sorbent in a mixture with the catalyst in the sorption-catalytic steam conversion of CO at 320 °С led to a considerable decrease in its sorption capacity; this may be related to the conversion of all NaNO3 into Na2CO3, which decomposed incompletely during regeneration. Nevertheless, this made it possible to decrease twofold the outlet concentrations of СО and СН4 as compared to the values observed at the indicated temperature in the experiment without a sorbent: particularly, in the middle of the first adsorption cycle they were equal to 6.1·10–4 and 8.2·10–2 vol.%, respectively, on a dry gas basis. Thus, the indicated approach to the sorption-catalytic conversion of CO was shown to be promising; further studies are needed to increase the capacity and stability of the presented type of sorbents.","PeriodicalId":17783,"journal":{"name":"Kataliz v promyshlennosti","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77252834","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

Experimental investigations and kinetics of hydrogen oxidation by oxygen in the media of carbon dioxide under elevated pressure at fiber-glass Pt/Pd catalysts 玻璃纤维Pt/Pd催化剂在二氧化碳介质中高压氧化氢的实验研究和动力学

Kataliz v promyshlennosti Pub Date : 2022-07-19 DOI: 10.18412/1816-0387-2022-4-22-27

A. Zagoruiko, S. Lopatin, P. Mikenin, A. Elyshev

{"title":"Experimental investigations and kinetics of hydrogen oxidation by oxygen in the media of carbon dioxide under elevated pressure at fiber-glass Pt/Pd catalysts","authors":"A. Zagoruiko, S. Lopatin, P. Mikenin, A. Elyshev","doi":"10.18412/1816-0387-2022-4-22-27","DOIUrl":"https://doi.org/10.18412/1816-0387-2022-4-22-27","url":null,"abstract":"The study is dedicated to the performance of glass-fiber catalysts (GFCs) in the practically important reaction of hydrogen oxidation by oxygen in the media of carbon dioxide at elevated pressures. The samples of the catalysts were synthesized using Pt and Pd as active metals and thermostable high-silica glass-fiber textiles both unpromoted and promoted by Zr. The used catalyst preparation methods include surface thermal synthesis and leaching/impregnation approaches. All three tested samples showed approximately equal activity, but the preference was given to Pt-based GFC synthesized by means of surface thermal synthesis method because it uses the much cheaper and widely available glass-fiber textile instead of rare and expensive Zr-promoted materials. Resource testing of this catalyst for more than 200 hours demonstrated its high stability. The reaction rate may be described by kinetic equation corresponding to mass-action law with linear dependence upon the reaction pressure. The studied GFC may be arranged into structured cartridges with low pressure drop and highly intensive heat and mass transfer under the commercial process conditions, so its further practical application looks promising.","PeriodicalId":17783,"journal":{"name":"Kataliz v promyshlennosti","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81150882","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

Hydrogenation of 1,3-pentadiene on modified Pd-containing catalysts 1,3-戊二烯在改性含pd催化剂上的加氢反应

Kataliz v promyshlennosti Pub Date : 2022-05-26 DOI: 10.18412/1816-0387-2022-3-31-37

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

引用次数: 0

Deactivation of hydrotreating catalysts (A review) 加氢处理催化剂的失活(综述)

Kataliz v promyshlennosti Pub Date : 2022-05-26 DOI: 10.18412/1816-0387-2022-3-38-65

S. V. Budukva, D. D. Uvarkina, O. Klimov, A. Noskov

引用次数: 1

The use of microalgae biomass for the production of marketable products. Part 1. Approaches to the production of microalgae biomass 利用微藻生物量生产适销产品。第1部分。微藻生物量生产的途径

Kataliz v promyshlennosti Pub Date : 2022-05-26 DOI: 10.18412/1816-0387-2022-3-66-85

K. N. Sorokina, Y. V. Samoylova, V. Parmon

引用次数: 2

The production of monomers by dehydrogenation at PJSC «Nizhnekamskneftekhim» 在PJSC«Nizhnekamskneftekhim»脱氢生产单体

Kataliz v promyshlennosti Pub Date : 2022-05-26 DOI: 10.18412/1816-0387-2022-3-21-30

I. R. Nabiullin, A. Boretskaya, M. V. Berezkina, R. Gilmullin, A. M. Busygina, A. Z. Kurbangaleeva, S. Egorova

引用次数: 0

Supported and polyfunctional hybrid cobalt catalysts for selective Fischer – Tropsch synthesis (A review) 选择性Fischer - Tropsch合成的负载型和多能杂化钴催化剂(综述)

Kataliz v promyshlennosti Pub Date : 2022-05-26 DOI: 10.18412/1816-0387-2022-3-5-20

R. Yakovenko, V. G. Bakun, S. Sulima, G. B. Narochnyi, S. Mitchenko, I. Zubkov, A. Savost’yanov

{"title":"Supported and polyfunctional hybrid cobalt catalysts for selective Fischer – Tropsch synthesis (A review)","authors":"R. Yakovenko, V. G. Bakun, S. Sulima, G. B. Narochnyi, S. Mitchenko, I. Zubkov, A. Savost’yanov","doi":"10.18412/1816-0387-2022-3-5-20","DOIUrl":"https://doi.org/10.18412/1816-0387-2022-3-5-20","url":null,"abstract":"The review considers modern approaches to the development of a technology for producing cobalt catalysts that are applied in the majority of known processes aimed to synthesize hydrocarbons from СО and Н2 by the Fischer – Tropsch method. The development of efficient catalysts makes it possible to replace the fuel produced from fossil oil by an alternative ultrapure fuel, thus reducing the detrimental effect on the environment. The results of R&D studies, particularly those obtained recently by the authors, were analyzed to reveal topical trends in the development of high-performance catalysts for the synthesis of hydrocarbons by the Fischer – Tropsch method within the classical and integrated GTL technology, including the creation of polyfunctional systems of new types. The review provides information mainly on the catalytic characteristics of the supported cobalt catalysts synthesized by impregnation and the related polyfunctional hybrid catalysts for the selective synthesis of fuel fraction hydrocarbons. The control of selectivity and productivity as well as changes in activity and physicochemical properties of the catalysts during a long-term operation are considered.","PeriodicalId":17783,"journal":{"name":"Kataliz v promyshlennosti","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88050287","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

Processes for the synthesis of γ-acetopropyl alcohol γ-乙酰丙醇的合成工艺

Kataliz v promyshlennosti Pub Date : 2022-03-24 DOI: 10.18412/1816-0387-2022-2-5-17

V. E. Tarabanko, M. Smirnova, E. Zhizhina

引用次数: 0

A dust-collecting device for dehydrogenation of paraffin hydrocarbons with a fluidized catalyst bed 一种用流化催化剂床进行石蜡烃脱氢的集尘装置

Kataliz v promyshlennosti Pub Date : 2022-03-24 DOI: 10.18412/1816-0387-2022-2-57-64

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

引用次数: 2