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The generation of singlet oxygen by petroleum and its fractions

Paper ID Volume ID Publish Year Pages File Format Full-Text
27179 44007 2012 5 PDF Available
Title
The generation of singlet oxygen by petroleum and its fractions
Abstract

Quantum yields of singlet oxygen formation by diesel oil, samples of four different crude petroleum and some fractions of a Brazilian intermediate petroleum were measured at 315 nm, 355 nm, 400 nm and 450 nm both by pulsed LASER or Xe lamp, with analysis of singlet oxygen emission at 1270 nm. All samples generated singlet oxygen in dilute solution. Diesel oil has the highest quantum yield (0.49) and a Venezuelan crude the poorest (0.17). The aromatic, polar, asphaltene and maltene fractions of the Brazilian crude all generate singlet oxygen. Singlet oxygen formation was also observed when undiluted crude petroleum was analyzed.

► Petroleum is the principal energy source nowadays. ► Undiluted oil generates singlet oxygen. ► Asphaltene fraction quenches singlet oxygen.

Keywords
Singlet oxygen; Petroleum; NIR phosphorescence; Laser flash photolysis
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The generation of singlet oxygen by petroleum and its fractions
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 236, 15 May 2012, Pages 9–13
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
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