Pub Date : 1997-04-01DOI: 10.1080/10916469708949654
G. Mushrush, W. Stalick, E. Beal, S. Basu, J. Slone
ABSTRACT The current fuel system icing inhibitor additives used in both the military and commercial airlines are ethylene glycol monomethyl ether (EGME) and diethylene glycol monomethyl ether (DiEGME)These deicing compounds are toxic at the concentrations that are required for effective deicing. When fuel system sumps, filters and storage tanks are drained, they contain EGME/DiEGME and create a personnel hazard. Acetals and ketals of reduced sugars represent viable alternatives to glycol based additives. They are inexpensive, fuel stable for at least one year and show similar icing inhibitor characteristics. This paper summarizes the synthesis and fuel studies for these compounds.
{"title":"The synthesis of acetals and ketals of the reduced sugar mannose as fuel system icing inhibitors","authors":"G. Mushrush, W. Stalick, E. Beal, S. Basu, J. Slone","doi":"10.1080/10916469708949654","DOIUrl":"https://doi.org/10.1080/10916469708949654","url":null,"abstract":"ABSTRACT The current fuel system icing inhibitor additives used in both the military and commercial airlines are ethylene glycol monomethyl ether (EGME) and diethylene glycol monomethyl ether (DiEGME)These deicing compounds are toxic at the concentrations that are required for effective deicing. When fuel system sumps, filters and storage tanks are drained, they contain EGME/DiEGME and create a personnel hazard. Acetals and ketals of reduced sugars represent viable alternatives to glycol based additives. They are inexpensive, fuel stable for at least one year and show similar icing inhibitor characteristics. This paper summarizes the synthesis and fuel studies for these compounds.","PeriodicalId":20402,"journal":{"name":"Preprints-American Chemical Society Division of Petroleum Chemistry","volume":"12 1","pages":"542-544"},"PeriodicalIF":0.0,"publicationDate":"1997-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79995377","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}
Pub Date : 1997-01-01DOI: 10.1016/s0140-6701(97)81822-x
S. Kirby, H. Schobert
{"title":"Catalytic hydrodeoxygenation under coal liquefaction conditions using novel organometallic catalyst precursors","authors":"S. Kirby, H. Schobert","doi":"10.1016/s0140-6701(97)81822-x","DOIUrl":"https://doi.org/10.1016/s0140-6701(97)81822-x","url":null,"abstract":"","PeriodicalId":20402,"journal":{"name":"Preprints-American Chemical Society Division of Petroleum Chemistry","volume":"671 1","pages":"643-647"},"PeriodicalIF":0.0,"publicationDate":"1997-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74750032","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}
Pub Date : 1996-10-01DOI: 10.1021/bk-1996-0638.ch021
I. Wachs, G. Deo, J. Jehng, Du Soung Kim, Hangchun Hu
Supported metal oxide catalysts are extensively employed in the petrochemical and pollution control industries as oxidation catalysts. The active redox components of supported metal oxide catalysts are present as two-dimensional metal oxide overlayers on the high surface area oxide supports.In the present investigation, Raman spectroscopy was used to obtain information about the molecular structures present in the two-dimensional overlayers, and methanol oxidation was used to chemically probe the surface redox and acid sites. A combination of this information with catalytic data for the selective oxidation of alkanes and the selective reduction of NOx with ammonia has provided new insights into the origin of the activity and selectivity properties of supported metal oxide catalysts during oxidation reactions.
{"title":"The activity and selectivity properties of supported metal oxide catalysts during oxidation reactions","authors":"I. Wachs, G. Deo, J. Jehng, Du Soung Kim, Hangchun Hu","doi":"10.1021/bk-1996-0638.ch021","DOIUrl":"https://doi.org/10.1021/bk-1996-0638.ch021","url":null,"abstract":"Supported metal oxide catalysts are extensively employed in the petrochemical and pollution control industries as oxidation catalysts. The active redox components of supported metal oxide catalysts are present as two-dimensional metal oxide overlayers on the high surface area oxide supports.In the present investigation, Raman spectroscopy was used to obtain information about the molecular structures present in the two-dimensional overlayers, and methanol oxidation was used to chemically probe the surface redox and acid sites. A combination of this information with catalytic data for the selective oxidation of alkanes and the selective reduction of NOx with ammonia has provided new insights into the origin of the activity and selectivity properties of supported metal oxide catalysts during oxidation reactions.","PeriodicalId":20402,"journal":{"name":"Preprints-American Chemical Society Division of Petroleum Chemistry","volume":"37 1","pages":"64-67"},"PeriodicalIF":0.0,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80876431","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}
Pub Date : 1996-10-01DOI: 10.1021/bk-1996-0638.ch006
M. Bañares, L. Alemany, F. Martı́n-Jiménez, J. Blasco, M. Granados, M. Peña, J. Fierro
This paper presents an experimental study of partial catalytic oxidation of methane. The catalyst was a low surface area SiO 2 -Si supported vanadia catalyst and the role of NO (chemical radical initiator) has been studied in this new catalytic system.
{"title":"Partial oxidation of methane on low surface area SiO2-Si supported vanadia catalysts","authors":"M. Bañares, L. Alemany, F. Martı́n-Jiménez, J. Blasco, M. Granados, M. Peña, J. Fierro","doi":"10.1021/bk-1996-0638.ch006","DOIUrl":"https://doi.org/10.1021/bk-1996-0638.ch006","url":null,"abstract":"This paper presents an experimental study of partial catalytic oxidation of methane. The catalyst was a low surface area SiO 2 -Si supported vanadia catalyst and the role of NO (chemical radical initiator) has been studied in this new catalytic system.","PeriodicalId":20402,"journal":{"name":"Preprints-American Chemical Society Division of Petroleum Chemistry","volume":"64 1","pages":"123-125"},"PeriodicalIF":0.0,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89204873","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}
Pub Date : 1996-10-01DOI: 10.1021/bk-1996-0638.ch032
P. Kaviratna, C. Peden
This work is aimed at assessing the potential of a photocatalytic process for the reduction of unburned hydrocarbons, carbon monoxide and oxides of nitrogen in automobile exhaust emissions. The authors have attempted to identify some of the factors that control the gas-phase photocatalytic destruction of hydrocarbon pollutants with specific reference to a prototypical automobile exhaust constituent, propylene. In particular, a determination of the propylene conversion rate as a function of gas flow, the stability of rate over time, and the effect of impurity water-vapor concentration are reported.
{"title":"Photocatalytic destruction of automobile exhaust emissions","authors":"P. Kaviratna, C. Peden","doi":"10.1021/bk-1996-0638.ch032","DOIUrl":"https://doi.org/10.1021/bk-1996-0638.ch032","url":null,"abstract":"This work is aimed at assessing the potential of a photocatalytic process for the reduction of unburned hydrocarbons, carbon monoxide and oxides of nitrogen in automobile exhaust emissions. The authors have attempted to identify some of the factors that control the gas-phase photocatalytic destruction of hydrocarbon pollutants with specific reference to a prototypical automobile exhaust constituent, propylene. In particular, a determination of the propylene conversion rate as a function of gas flow, the stability of rate over time, and the effect of impurity water-vapor concentration are reported.","PeriodicalId":20402,"journal":{"name":"Preprints-American Chemical Society Division of Petroleum Chemistry","volume":"10 1","pages":"51-53"},"PeriodicalIF":0.0,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90635078","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}
Pub Date : 1996-10-01DOI: 10.1021/bk-1996-0638.ch025
A. Guerrero-Ruíz, I. Rodríguez-Ramos
In this paper we report a detailed TPD study of carbon dioxide chemisorption on several ZnO powder samples differing in origin and surface area. the effect of CO 2 surface coverage on the TPD profiles and the isotope distribution of evolved CO 2 species has been studied
{"title":"Interaction of CO2 with ZnO powders of different microcrystalline surfaces","authors":"A. Guerrero-Ruíz, I. Rodríguez-Ramos","doi":"10.1021/bk-1996-0638.ch025","DOIUrl":"https://doi.org/10.1021/bk-1996-0638.ch025","url":null,"abstract":"In this paper we report a detailed TPD study of carbon dioxide chemisorption on several ZnO powder samples differing in origin and surface area. the effect of CO 2 surface coverage on the TPD profiles and the isotope distribution of evolved CO 2 species has been studied","PeriodicalId":20402,"journal":{"name":"Preprints-American Chemical Society Division of Petroleum Chemistry","volume":"1 1","pages":"14-16"},"PeriodicalIF":0.0,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79005149","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}
Pub Date : 1996-10-01DOI: 10.1021/bk-1996-0638.ch011
O. Buyevskaya, M. Kubík, M. Baerns
This paper presents results on catalytic performance, and on surface as well as bulk characterization of boria-alumina catalysts for the oxidative dehydrogenation of propane. Furthermore, the primary step of propane interaction with catalytic surfaces of Al 2 O 3 and B 2 O 3 /Al 2 /O 3 was studied by pulsing C 3 H 8 over these solids in the temporal-analysis-of products (TAP) reactor. Finally it is the aim of this study to elucidate selective and non selective product formation.
{"title":"Factors determining the selectivity in the oxidative dehydrogenation of propane over boria-alumina catalysts","authors":"O. Buyevskaya, M. Kubík, M. Baerns","doi":"10.1021/bk-1996-0638.ch011","DOIUrl":"https://doi.org/10.1021/bk-1996-0638.ch011","url":null,"abstract":"This paper presents results on catalytic performance, and on surface as well as bulk characterization of boria-alumina catalysts for the oxidative dehydrogenation of propane. Furthermore, the primary step of propane interaction with catalytic surfaces of Al 2 O 3 and B 2 O 3 /Al 2 /O 3 was studied by pulsing C 3 H 8 over these solids in the temporal-analysis-of products (TAP) reactor. Finally it is the aim of this study to elucidate selective and non selective product formation.","PeriodicalId":20402,"journal":{"name":"Preprints-American Chemical Society Division of Petroleum Chemistry","volume":"7 5 1","pages":"163-166"},"PeriodicalIF":0.0,"publicationDate":"1996-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80693614","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}
Pub Date : 1996-01-01DOI: 10.1021/bk-1996-0638.ch019
S. Buchholz, H. Zanthoff
The present work aimed at the elucidation of the reaction mechanism of the ammoxidation of propane and propene over a VSb 5 O x catalyst. Information on intermediate products and active sites were obtained by studying the interaction of NH 3 , propane and NH 3 , propene and NH 3 , as well as acrolein and NH 3 with a VSb 5 O x catalyst applying a vacuum transient technique
本文旨在阐明在vsb5 O x催化剂上丙烷和丙烯氨氧化的反应机理。采用真空瞬态技术研究了nh3、丙烷与nh3、丙烯与nh3、丙烯与nh3以及丙烯与nh3与vsb5o x催化剂的相互作用，得到了中间产物和活性位点的信息
{"title":"Mechanism of catalytic ammoxidation of propane and propene over vanadium-antimony oxides","authors":"S. Buchholz, H. Zanthoff","doi":"10.1021/bk-1996-0638.ch019","DOIUrl":"https://doi.org/10.1021/bk-1996-0638.ch019","url":null,"abstract":"The present work aimed at the elucidation of the reaction mechanism of the ammoxidation of propane and propene over a VSb 5 O x catalyst. Information on intermediate products and active sites were obtained by studying the interaction of NH 3 , propane and NH 3 , propene and NH 3 , as well as acrolein and NH 3 with a VSb 5 O x catalyst applying a vacuum transient technique","PeriodicalId":20402,"journal":{"name":"Preprints-American Chemical Society Division of Petroleum Chemistry","volume":"35 1","pages":"210-213"},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74415638","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}
Pub Date : 1996-01-01DOI: 10.1021/bk-1996-0638.ch005
G. Hutchings, S. Taylor, I. Hudson
In recent years environmental factors resulting in the reduction of emissions from chemical installations have become increasingly important. Volatile orgnaic compounds (VOCs) are a wide ranging class of compounds which commonly occur as pollutants in commercial waste streams. The catalytic oxidation using an air oxidant provides a convenient route for the destruction of VOCs, this method is less likely to procure toxic by-products and more cost effective than the alternative high temperature (>1000°C) incineration process. This paper presents an investigation on uranium oxide based catalysts for the oxidative destruction of benzene and butane volatile organic compounds.
{"title":"A new class of uranium oxide based catalysts for the oxidative destruction of benzene and butane volatile organic compounds","authors":"G. Hutchings, S. Taylor, I. Hudson","doi":"10.1021/bk-1996-0638.ch005","DOIUrl":"https://doi.org/10.1021/bk-1996-0638.ch005","url":null,"abstract":"In recent years environmental factors resulting in the reduction of emissions from chemical installations have become increasingly important. Volatile orgnaic compounds (VOCs) are a wide ranging class of compounds which commonly occur as pollutants in commercial waste streams. The catalytic oxidation using an air oxidant provides a convenient route for the destruction of VOCs, this method is less likely to procure toxic by-products and more cost effective than the alternative high temperature (>1000°C) incineration process. This paper presents an investigation on uranium oxide based catalysts for the oxidative destruction of benzene and butane volatile organic compounds.","PeriodicalId":20402,"journal":{"name":"Preprints-American Chemical Society Division of Petroleum Chemistry","volume":"89 1","pages":"106-109"},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83857005","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}
Pub Date : 1996-01-01DOI: 10.1021/bk-1996-0638.ch013
U. Ozkan, R. Gooding, B. T. Schilf
This study demonstrates the use of molybdena-based catalysts in the partial oxidation of pentane and 1-pentene to phtalic and maleic anhydrides. The catalysts used are two phase materials consisting of molybdenum oxide and a simple molybdate
{"title":"Partial oxidation of C5 hydrocarbons to maleic and phthalic anhydrides over molybdate-based catalysts","authors":"U. Ozkan, R. Gooding, B. T. Schilf","doi":"10.1021/bk-1996-0638.ch013","DOIUrl":"https://doi.org/10.1021/bk-1996-0638.ch013","url":null,"abstract":"This study demonstrates the use of molybdena-based catalysts in the partial oxidation of pentane and 1-pentene to phtalic and maleic anhydrides. The catalysts used are two phase materials consisting of molybdenum oxide and a simple molybdate","PeriodicalId":20402,"journal":{"name":"Preprints-American Chemical Society Division of Petroleum Chemistry","volume":"105 1","pages":"176-178"},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86959128","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}
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