Crude oil burning mechanisms: A conceptual model review

Laurens van Gelderen, L.M.V. Malmquist, Grunde Jomaas

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Abstract

In order to improve predictions for the burning efficiency and the residue composition of in-situ burning of crude oil, the burning mechanism of crude oil was studied in relation to the composition of its hydrocarbon mixture, before, during and after the burning. The surface temperature, flame height, mass loss rate and residues of three hydrocarbon liquids (n-octane, dodecane and hexadecane), two crude oils (DUC and REBCO) and one hydrocarbon liquid mixture of the aforementioned hydrocarbon liquids were studied using the Crude Oil Flammability Apparatus. The experimental results were compared to the predictions of four conceptual models that describe the burning mechanism of multicomponent fuels. Based on the comparisons, hydrocarbon liquids were found to be best described by the Equilibrium Flash Vaporization model, showing a constant gas composition and gasification rate. The multicomponent fuels followed the diffusion-limited gasification model, showing a change in the hydrocarbon composition of the fuel and its evaporating gases, as well as a decreasing gasification rate, as the burning progressed. This burning mechanism implies that the residue composition and burning efficiency mainly depend on the highest achievable oil slick temperature. Based on this mechanism, predictions can then be made depending on the hydrocarbon composition of the fuel and the measured surface temperature.
Original languageEnglish
Title of host publicationProceedings of the 38th AMOP Technical Seminar on Environmental Contamination and Response
Number of pages16
Publication date2015
Publication statusPublished - 2015
Event38th AMOP Technical Seminar on Environmental Contamination and Response - Vancouver, Canada
Duration: 2 Jun 20154 Jun 2015
Conference number: 38

Conference

Conference38th AMOP Technical Seminar on Environmental Contamination and Response
Number38
CountryCanada
CityVancouver
Period02/06/201504/06/2015

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