Microbial contamination of stored hydrocarbon fuels and its control

The major microbial problem in the petroleum refining industry is contamination of stored products, which can lead to loss of product quality, formation of sludge and deterioration of pipework and storage tanks, both in the refinery and at the end-user. Three major classes of fuel are discussed in t...

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Published inRevista de microbiologia Vol. 30; no. 1; pp. 1 - 10
Main Authors Gaylarde, Christine C.(Universidade Federal do Rio Grande do Sul-UFRGS), Bento, Fátima M.(Universidade Federal do Rio Grande do Sul-UFRGS), Kelley, Joan(Bakeham Lane)
Format Journal Article
LanguageEnglish
Portuguese
Published Sociedade Brasileira de Microbiologia 01.01.1999
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Summary:The major microbial problem in the petroleum refining industry is contamination of stored products, which can lead to loss of product quality, formation of sludge and deterioration of pipework and storage tanks, both in the refinery and at the end-user. Three major classes of fuel are discussed in this article - gasoline, aviation kerosene and diesel, corresponding to increasingly heavy petroleum fractions. The fuel that presents the most serious microbiological problems is diesel. The many microorganisms that have been isolated from hydrocarbon fuel systems are listed. The conditions required for microbial growth and the methods used to monitor and to control this activity are discussed. The effects of various fuel additives, including biocides, are considered. O problema microbiano maior na indústria de refino de petróleo é a contaminação de produtos armazenados, que pode levar à perda da qualidade, à formação de borra e à deterioração de tubulações e tanques de estocagem, na refinaria e no usuário. São abordadas, neste artigo, três classes de combustível, gasolina, querosene de aviação e óleo diesel, correspondente à ordem crescente de peso no fracionamento de petróleo. O óleo diesel apresenta os problemas microbiológicos mais sérios. São relatados os diversos microrganismos isolados de sistemas de combustíveis hidrocarbonados. São apresentadas as condições necessárias para crescimento microbiano e os métodos utilizados para o monitoramento e controle desse crescimento. Os efeitos de diversos aditivos, inclusive biocidas, são discutidos
Bibliography:10.1590/S0001-37141999000100001
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37141999000100001
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ISSN:0001-3714
0001-3714
DOI:10.1590/s0001-37141999000100001