Open AccessAnalysis of soot formation in a rapeseed oil-fueled diffusion flame: focusing on the importance of soot in Nara sumi
Author(s) -
Akinori Ren,
Shoko Kume,
Reo Baba,
Yukichi Kishida,
Manabu Fujiwara,
Sumiaki Nakano
Publication year - 2022
Publication title -
analytical sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.392
H-Index - 73
eISSN - 1348-2246
pISSN - 0910-6340
DOI - 10.1007/s44211-022-00151-1
Subject(s) - soot , chemistry , rapeseed , diffusion flame , x ray photoelectron spectroscopy , combustion , chemical engineering , organic chemistry , combustor , food science , engineering
Nara sumi is a traditional Japanese craft that has been handed down in Nara since ancient times, and now plays a major role as a regional resource. Soot is considered to be one of the most important materials for its quality. However, the making process has been supported solely by the rule of thumb for craftsmen for many years, and there is very little scientific understanding of that. Therefore, we are focusing on the soot formation process in this study. Soot was collected from different heights in a rapeseed oil-fueled diffusion flame and analyzed by scanning electron microscopy and X-ray photoelectron spectroscopy. As a result, it was confirmed that the formation of the soot shape completes at the bottom of the outside of the flame and that the shape does not change thereafter. It was also confirmed that the oxidation of soot occurs at the bottom of the outside of the flame. These results are expected to contribute to the further scientific understanding of the soot formation process.