{"title":"Oxidative conversion of methane on lanthanum-containing hydroxychloride catalysts","authors":"A.Kh. Mamedov, S.R. Mirzabekova, I.A. Guliyev, S.A. Dzhamalova, S.Kh. Zeinalova, V.S. Aliyev","doi":"10.1016/0031-6458(90)90040-M","DOIUrl":null,"url":null,"abstract":"<div><p>The activity of lanthanum-containing oxide and hydroxychloride catalysts in oxidative condensation of methane has been studied. It has been established that modification of La<sub>2</sub>O<sub>3</sub> with sodium (NaCl) and application on Al<sub>2</sub>O<sub>3</sub> leads to high selectivity of the process. Selectivity with respect to C<sub>2</sub> hydrocarbons at 760°C amounts to 84% with 20·4% methane conversion. Catalyst NaClLaO/Al<sub>2</sub>O<sub>3</sub> is multiphase, and NaCl, LaOCl and LaAlO<sub>3</sub> phases coexist in reaction conditions. As the reaction progresses there is a change in the phase composition and selectivity of the catalyst.</p></div>","PeriodicalId":19738,"journal":{"name":"Petroleum Chemistry U.s.s.r.","volume":"30 4","pages":"Pages 240-245"},"PeriodicalIF":0.0000,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0031-6458(90)90040-M","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Petroleum Chemistry U.s.s.r.","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/003164589090040M","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
The activity of lanthanum-containing oxide and hydroxychloride catalysts in oxidative condensation of methane has been studied. It has been established that modification of La2O3 with sodium (NaCl) and application on Al2O3 leads to high selectivity of the process. Selectivity with respect to C2 hydrocarbons at 760°C amounts to 84% with 20·4% methane conversion. Catalyst NaClLaO/Al2O3 is multiphase, and NaCl, LaOCl and LaAlO3 phases coexist in reaction conditions. As the reaction progresses there is a change in the phase composition and selectivity of the catalyst.
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