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Heat of Adsorption of Xylene on Pt-Si02-Al2-03 Isomerization Catalyst."}]}, "item_3_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "1974-12", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "5", "bibliographicPageEnd": "153", "bibliographicPageStart": "149", "bibliographic_titles": [{"bibliographic_title": "長崎大学工学部研究報告"}, {"bibliographic_title": "Reports of the Faculty of Engineering, Nagasaki University", "bibliographic_titleLang": "en"}]}]}, "item_3_description_4": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "The heats of adsorption of three isomers of xylene on the Pt-SiO2-Al2O3 isomerization catalyst have been measured by gas chromatographic technique with hydrogen as a carrier gas in the temperature range of 340 to 460℃, and compared with those obtained from the measurement of reaction kinetics by using a fixed bed flow reactor. A retention volume of xylene varied with an amount of sample injected and with a contact time (amount of catalyst packed/flow rate of carrier gas). Under the condition of a constant contact time, an apparent heat of adsorption was determined from the temperature dependency of the retention volume obtained, by extrapolating to infinitesimal samples. The apparent heat of adsorption thus obtained was incrgased with contact times, which may arise from the extent of reaction. In order to eliminate the extent of reaction, the extrapolation of the apparent heat of aqsorption was made to infinitesimal contact times. The heats of adsorption of ο-, m-, and p-xylene for infinitesimal contact times were found to be 7.9 ± 2.1, 6.2 ± O.4, and 5.9 ± O.9 kcal/mole, respectively. 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ガスクロ法による反応中の吸収特性の測定 I.Pt - Si02 - Al2 O3 異性化触媒へのキシレンの吸収熱
http://hdl.handle.net/10069/23830
http://hdl.handle.net/10069/2383092074ffa-46a0-453c-89d7-33e759fa8e65
名前 / ファイル | ライセンス | アクション |
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kogaku00_05_19.pdf (364.8 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2010-09-07 | |||||
タイトル | ||||||
タイトル | ガスクロ法による反応中の吸収特性の測定 I.Pt - Si02 - Al2 O3 異性化触媒へのキシレンの吸収熱 | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
著者 |
鹿川, 修一
× 鹿川, 修一× 岡, 宏× 中森, 一誠 |
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著者別名 | ||||||
姓名 | Kagawa, Shuichi | |||||
著者別名 | ||||||
姓名 | Oka, Hiroshi | |||||
著者別名 | ||||||
姓名 | Nakamori, Issei | |||||
その他のタイトル | ||||||
その他のタイトル | Measurement of Adsorption Characteristics during Course of Reaction by Gas Chromatographic Technique. I. Heat of Adsorption of Xylene on Pt-Si02-Al2-03 Isomerization Catalyst. | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The heats of adsorption of three isomers of xylene on the Pt-SiO2-Al2O3 isomerization catalyst have been measured by gas chromatographic technique with hydrogen as a carrier gas in the temperature range of 340 to 460℃, and compared with those obtained from the measurement of reaction kinetics by using a fixed bed flow reactor. A retention volume of xylene varied with an amount of sample injected and with a contact time (amount of catalyst packed/flow rate of carrier gas). Under the condition of a constant contact time, an apparent heat of adsorption was determined from the temperature dependency of the retention volume obtained, by extrapolating to infinitesimal samples. The apparent heat of adsorption thus obtained was incrgased with contact times, which may arise from the extent of reaction. In order to eliminate the extent of reaction, the extrapolation of the apparent heat of aqsorption was made to infinitesimal contact times. The heats of adsorption of ο-, m-, and p-xylene for infinitesimal contact times were found to be 7.9 ± 2.1, 6.2 ± O.4, and 5.9 ± O.9 kcal/mole, respectively. On the other hand, from the analysis of reaction kinetics, the xylene isomerization was verified to consist of six interconversion reactions among three isomers, each of which follows the rate equation of Langmuir-Hinshelwood type, and the heats of adsorption of these isomers were determined from the temperature dependency of adsorption equilibrium constants. Taking the error into account, both heats of adsorption were in good agreement. It should be emphasized that on the measuremeht of a heat of adsorption during course of reaction by gas chromatographic technique the effect of reaction must be eliminated. | |||||
書誌情報 |
長崎大学工学部研究報告 en : Reports of the Faculty of Engineering, Nagasaki University 号 5, p. 149-153, 発行日 1974-12 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 02860902 | |||||
EISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 18805574 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00178418 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
出版者 | 長崎大学工学部 | |||||
出版者別言語 | ||||||
Faculty of Engineering, Nagasaki University | ||||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 長崎大学工学部研究報告, (5), pp.149-153; 1974 |