ESR studies of coke formation on zeolite catalysts for methanol conversion |
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Authors: | G V Echevskii N G Kalinina V F Anufrienko and V A Poluboyarov |
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Institution: | (1) Institute of Catalysis, 630090 Novosibirsk, USSR |
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Abstract: | Pentasil type zeolite catalysts with different SiO2/Al2O3 ratios carbonized during methanol conversion at 380–420°C have been studied by the ESR method. Factors responsible for the formation of condensed coke structures on their surface have been established.![Mcy](/content/g3q7v475173l7254/xxlarge1052.gif) ![iecy](/content/g3q7v475173l7254/xxlarge1077.gif) ![tcy](/content/g3q7v475173l7254/xxlarge1090.gif) ![ocy](/content/g3q7v475173l7254/xxlarge1086.gif) ![dcy](/content/g3q7v475173l7254/xxlarge1076.gif) ![ocy](/content/g3q7v475173l7254/xxlarge1086.gif) ![Ecy](/content/g3q7v475173l7254/xxlarge1069.gif) ![Pcy](/content/g3q7v475173l7254/xxlarge1055.gif) ![icy](/content/g3q7v475173l7254/xxlarge1080.gif) ![zcy](/content/g3q7v475173l7254/xxlarge1079.gif) ![ucy](/content/g3q7v475173l7254/xxlarge1091.gif) ![chcy](/content/g3q7v475173l7254/xxlarge1095.gif) ![iecy](/content/g3q7v475173l7254/xxlarge1077.gif) ![ncy](/content/g3q7v475173l7254/xxlarge1085.gif) ![tscy](/content/g3q7v475173l7254/xxlarge1094.gif) ![iecy](/content/g3q7v475173l7254/xxlarge1077.gif) ![ocy](/content/g3q7v475173l7254/xxlarge1086.gif) ![lcy](/content/g3q7v475173l7254/xxlarge1083.gif) ![icy](/content/g3q7v475173l7254/xxlarge1080.gif) ![tcy](/content/g3q7v475173l7254/xxlarge1090.gif) ![tcy](/content/g3q7v475173l7254/xxlarge1090.gif) ![icy](/content/g3q7v475173l7254/xxlarge1080.gif) ![pcy](/content/g3q7v475173l7254/xxlarge1087.gif) ![pcy](/content/g3q7v475173l7254/xxlarge1087.gif) ![iecy](/content/g3q7v475173l7254/xxlarge1077.gif) ![ncy](/content/g3q7v475173l7254/xxlarge1085.gif) ![tcy](/content/g3q7v475173l7254/xxlarge1090.gif) ![acy](/content/g3q7v475173l7254/xxlarge1072.gif) ![scy](/content/g3q7v475173l7254/xxlarge1089.gif) ![icy](/content/g3q7v475173l7254/xxlarge1080.gif) ![rcy](/content/g3q7v475173l7254/xxlarge1088.gif) ![acy](/content/g3q7v475173l7254/xxlarge1072.gif) ![zcy](/content/g3q7v475173l7254/xxlarge1079.gif) ![lcy](/content/g3q7v475173l7254/xxlarge1083.gif) ![icy](/content/g3q7v475173l7254/xxlarge1080.gif) ![chcy](/content/g3q7v475173l7254/xxlarge1095.gif) ![ncy](/content/g3q7v475173l7254/xxlarge1085.gif) ![ycy](/content/g3q7v475173l7254/xxlarge1099.gif) ![scy](/content/g3q7v475173l7254/xxlarge1089.gif) ![ocy](/content/g3q7v475173l7254/xxlarge1086.gif) ![ocy](/content/g3q7v475173l7254/xxlarge1086.gif) ![tcy](/content/g3q7v475173l7254/xxlarge1090.gif) ![ncy](/content/g3q7v475173l7254/xxlarge1085.gif) ![ocy](/content/g3q7v475173l7254/xxlarge1086.gif) ![shcy](/content/g3q7v475173l7254/xxlarge1096.gif) ![iecy](/content/g3q7v475173l7254/xxlarge1077.gif) ![ncy](/content/g3q7v475173l7254/xxlarge1085.gif) ![icy](/content/g3q7v475173l7254/xxlarge1080.gif) ![iecy](/content/g3q7v475173l7254/xxlarge1077.gif) SiO2/Al2O3, ![zcy](/content/g3q7v475173l7254/xxlarge1079.gif) ![acy](/content/g3q7v475173l7254/xxlarge1072.gif) ![ucy](/content/g3q7v475173l7254/xxlarge1091.gif) ![gcy](/content/g3q7v475173l7254/xxlarge1075.gif) ![lcy](/content/g3q7v475173l7254/xxlarge1083.gif) ![iecy](/content/g3q7v475173l7254/xxlarge1077.gif) ![rcy](/content/g3q7v475173l7254/xxlarge1088.gif) ![ocy](/content/g3q7v475173l7254/xxlarge1086.gif) ![zhcy](/content/g3q7v475173l7254/xxlarge1078.gif) ![iecy](/content/g3q7v475173l7254/xxlarge1077.gif) ![ncy](/content/g3q7v475173l7254/xxlarge1085.gif) ![ncy](/content/g3q7v475173l7254/xxlarge1085.gif) ![ycy](/content/g3q7v475173l7254/xxlarge1099.gif) ![pcy](/content/g3q7v475173l7254/xxlarge1087.gif) ![rcy](/content/g3q7v475173l7254/xxlarge1088.gif) ![ocy](/content/g3q7v475173l7254/xxlarge1086.gif) ![tscy](/content/g3q7v475173l7254/xxlarge1094.gif) ![iecy](/content/g3q7v475173l7254/xxlarge1077.gif) ![scy](/content/g3q7v475173l7254/xxlarge1089.gif) ![scy](/content/g3q7v475173l7254/xxlarge1089.gif) ![kcy](/content/g3q7v475173l7254/xxlarge1082.gif) ![ocy](/content/g3q7v475173l7254/xxlarge1086.gif) ![ncy](/content/g3q7v475173l7254/xxlarge1085.gif) ![vcy](/content/g3q7v475173l7254/xxlarge1074.gif) ![iecy](/content/g3q7v475173l7254/xxlarge1077.gif) ![rcy](/content/g3q7v475173l7254/xxlarge1088.gif) ![scy](/content/g3q7v475173l7254/xxlarge1089.gif) ![icy](/content/g3q7v475173l7254/xxlarge1080.gif) ![mcy](/content/g3q7v475173l7254/xxlarge1084.gif) ![iecy](/content/g3q7v475173l7254/xxlarge1077.gif) ![tcy](/content/g3q7v475173l7254/xxlarge1090.gif) ![acy](/content/g3q7v475173l7254/xxlarge1072.gif) ![ncy](/content/g3q7v475173l7254/xxlarge1085.gif) ![ocy](/content/g3q7v475173l7254/xxlarge1086.gif) ![lcy](/content/g3q7v475173l7254/xxlarge1083.gif) ![pcy](/content/g3q7v475173l7254/xxlarge1087.gif) ![rcy](/content/g3q7v475173l7254/xxlarge1088.gif) 380–420°C.![vcy](/content/g3q7v475173l7254/xxlarge1074.gif) ![ycy](/content/g3q7v475173l7254/xxlarge1099.gif) ![yacy](/content/g3q7v475173l7254/xxlarge1103.gif) ![vcy](/content/g3q7v475173l7254/xxlarge1074.gif) ![lcy](/content/g3q7v475173l7254/xxlarge1083.gif) ![iecy](/content/g3q7v475173l7254/xxlarge1077.gif) ![ncy](/content/g3q7v475173l7254/xxlarge1085.gif) ![fcy](/content/g3q7v475173l7254/xxlarge1092.gif) ![acy](/content/g3q7v475173l7254/xxlarge1072.gif) ![kcy](/content/g3q7v475173l7254/xxlarge1082.gif) ![tcy](/content/g3q7v475173l7254/xxlarge1090.gif) ![ocy](/content/g3q7v475173l7254/xxlarge1086.gif) ![rcy](/content/g3q7v475173l7254/xxlarge1088.gif) , ![vcy](/content/g3q7v475173l7254/xxlarge1074.gif) ![lcy](/content/g3q7v475173l7254/xxlarge1083.gif) ![icy](/content/g3q7v475173l7254/xxlarge1080.gif) ![yacy](/content/g3q7v475173l7254/xxlarge1103.gif) ![yucy](/content/g3q7v475173l7254/xxlarge1102.gif) ![shchcy](/content/g3q7v475173l7254/xxlarge1097.gif) ![icy](/content/g3q7v475173l7254/xxlarge1080.gif) ![ncy](/content/g3q7v475173l7254/xxlarge1085.gif) ![pcy](/content/g3q7v475173l7254/xxlarge1087.gif) ![rcy](/content/g3q7v475173l7254/xxlarge1088.gif) ![ocy](/content/g3q7v475173l7254/xxlarge1086.gif) ![tscy](/content/g3q7v475173l7254/xxlarge1094.gif) ![iecy](/content/g3q7v475173l7254/xxlarge1077.gif) ![scy](/content/g3q7v475173l7254/xxlarge1089.gif) ![ocy](/content/g3q7v475173l7254/xxlarge1086.gif) ![bcy](/content/g3q7v475173l7254/xxlarge1073.gif) ![rcy](/content/g3q7v475173l7254/xxlarge1088.gif) ![acy](/content/g3q7v475173l7254/xxlarge1072.gif) ![zcy](/content/g3q7v475173l7254/xxlarge1079.gif) ![ocy](/content/g3q7v475173l7254/xxlarge1086.gif) ![vcy](/content/g3q7v475173l7254/xxlarge1074.gif) ![acy](/content/g3q7v475173l7254/xxlarge1072.gif) ![ncy](/content/g3q7v475173l7254/xxlarge1085.gif) ![icy](/content/g3q7v475173l7254/xxlarge1080.gif) ![scy](/content/g3q7v475173l7254/xxlarge1089.gif) ![tcy](/content/g3q7v475173l7254/xxlarge1090.gif) ![rcy](/content/g3q7v475173l7254/xxlarge1088.gif) ![ucy](/content/g3q7v475173l7254/xxlarge1091.gif) ![kcy](/content/g3q7v475173l7254/xxlarge1082.gif) ![tcy](/content/g3q7v475173l7254/xxlarge1090.gif) ![ucy](/content/g3q7v475173l7254/xxlarge1091.gif) ![kcy](/content/g3q7v475173l7254/xxlarge1082.gif) ![ocy](/content/g3q7v475173l7254/xxlarge1086.gif) ![ncy](/content/g3q7v475173l7254/xxlarge1085.gif) ![dcy](/content/g3q7v475173l7254/xxlarge1076.gif) ![iecy](/content/g3q7v475173l7254/xxlarge1077.gif) ![ncy](/content/g3q7v475173l7254/xxlarge1085.gif) ![scy](/content/g3q7v475173l7254/xxlarge1089.gif) ![icy](/content/g3q7v475173l7254/xxlarge1080.gif) ![rcy](/content/g3q7v475173l7254/xxlarge1088.gif) ![ocy](/content/g3q7v475173l7254/xxlarge1086.gif) ![vcy](/content/g3q7v475173l7254/xxlarge1074.gif) ![acy](/content/g3q7v475173l7254/xxlarge1072.gif) ![ncy](/content/g3q7v475173l7254/xxlarge1085.gif) ![ncy](/content/g3q7v475173l7254/xxlarge1085.gif) ![ocy](/content/g3q7v475173l7254/xxlarge1086.gif) ![gcy](/content/g3q7v475173l7254/xxlarge1075.gif) ![kcy](/content/g3q7v475173l7254/xxlarge1082.gif) ![ocy](/content/g3q7v475173l7254/xxlarge1086.gif) ![kcy](/content/g3q7v475173l7254/xxlarge1082.gif) ![scy](/content/g3q7v475173l7254/xxlarge1089.gif) ![ncy](/content/g3q7v475173l7254/xxlarge1085.gif) ![pcy](/content/g3q7v475173l7254/xxlarge1087.gif) ![ocy](/content/g3q7v475173l7254/xxlarge1086.gif) ![vcy](/content/g3q7v475173l7254/xxlarge1074.gif) ![iecy](/content/g3q7v475173l7254/xxlarge1077.gif) ![rcy](/content/g3q7v475173l7254/xxlarge1088.gif) ![khcy](/content/g3q7v475173l7254/xxlarge1093.gif) ![ncy](/content/g3q7v475173l7254/xxlarge1085.gif) ![ocy](/content/g3q7v475173l7254/xxlarge1086.gif) ![scy](/content/g3q7v475173l7254/xxlarge1089.gif) ![tcy](/content/g3q7v475173l7254/xxlarge1090.gif) ![tscy](/content/g3q7v475173l7254/xxlarge1094.gif) ![iecy](/content/g3q7v475173l7254/xxlarge1077.gif) ![ocy](/content/g3q7v475173l7254/xxlarge1086.gif) ![lcy](/content/g3q7v475173l7254/xxlarge1083.gif) ![icy](/content/g3q7v475173l7254/xxlarge1080.gif) ![tcy](/content/g3q7v475173l7254/xxlarge1090.gif) ![ncy](/content/g3q7v475173l7254/xxlarge1085.gif) ![ycy](/content/g3q7v475173l7254/xxlarge1099.gif) ![kcy](/content/g3q7v475173l7254/xxlarge1082.gif) ![acy](/content/g3q7v475173l7254/xxlarge1072.gif) ![tcy](/content/g3q7v475173l7254/xxlarge1090.gif) ![acy](/content/g3q7v475173l7254/xxlarge1072.gif) ![lcy](/content/g3q7v475173l7254/xxlarge1083.gif) ![icy](/content/g3q7v475173l7254/xxlarge1080.gif) ![zcy](/content/g3q7v475173l7254/xxlarge1079.gif) ![acy](/content/g3q7v475173l7254/xxlarge1072.gif) ![tcy](/content/g3q7v475173l7254/xxlarge1090.gif) ![ocy](/content/g3q7v475173l7254/xxlarge1086.gif) ![rcy](/content/g3q7v475173l7254/xxlarge1088.gif) ![ocy](/content/g3q7v475173l7254/xxlarge1086.gif) . |
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