Fuel Oils
Mixture preparation of industrial gas oil and air using pre-reactions beyond the conditions of auto-ignition
The mixing of fuel and air is a key factor with respect to the quality of combustion,
particularly with regard to the combustion of liquid fuels like light fuel oil. In contrast to
gases, liquid fuels have to be vaporized, and mixing with air is more difficult.
A new concept to generate a homogeneous fuel vapour/air-mixture using so-called cool
flames was systematically investigated in lab- and semi-technical scale reactors. Cool
. flames from fuels like light fuel oil are typically formed at temperatures of 300 °C up to
about 500 °C. In the cool flame, only a small part of the oxygen ((<20 %) is consumed.
Products of cool flames are CO, organic oxygen compounds (aldehydes, furanes) and
olefines.
The experiments were both carried out with model hydrocarbons and light fuel and _
deliver engineering rules that can help designing a mixture preparation unit using cool
flames.
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