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http://dx.doi.org/10.9713/kcer.2019.57.5.620

Analysis on Ignition Delay Characteristics of Bio Aviation Fuels Manufactured by HEFA Process  

Kang, Saetbyeol (The 4th R&D Institute 5th Directorate Agency for Defense Development)
Publication Information
Korean Chemical Engineering Research / v.57, no.5, 2019 , pp. 620-627 More about this Journal
Abstract
In this study, ignition delay characteristics of various bio aviation fuels (Bio-ADD, Bio-6308, Bio-7720) produced by HEFA process using different raw materials were compared and analyzed. In order to confirm the feasibility of applying bio aviation fuel to actual system, ignition delay characteristics of petroleum-based aviation fuel (Jet A-1) and blended aviation fuel (50:50, v:v) also analyzed. Ignition delay time of each aviation fuel was measured by using CRU, surface tension measurement and GC/MS and GC/FID analysis were performed to interpret the results. As a result, ignition delay time of Jet A-1 was the longest at all temperature because it contains aromatic compounds about 22.8%. The aromatic compounds can produce benzyl radical which is thermally stable and has low reactivity with oxygen during decomposition process. In the case of bio aviation fuels, ignition delay times were measured similarly because the ratio of n-paraffin/iso-paraffin constituting each aviation fuel is similar (about 0.12) and the composition ratio of cycloparaffin also has no difference. In addition, ignition delay times of blended aviation fuels (50:50, v:v) were measured close to the mean value those of each fuel so it was confirmed that it can be applied without any changing or improving of existing system.
Keywords
Bio aviation fuel; Petroleum-based aviation fuel; Ignition delay time; Aromatic compound; Paraffin;
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