熱分析によるカルシウム化合物のすす燃焼に及ぼす影響

概要

論文の詳細を見る
Calcium compound added to gas oil inhibits soot and promotes its combustion. Today it is reported that this catalysis is little effective in low grade fuel. The present paper examined how additive promoted combustion of soot which was produced from fuel oil C. Carbon black and carbon residue were used as models of soot and were mixed with each of two oil-soluble compounds, such as calcium stearate or calcium naphtenate. The mixed samples were heated from 100°C to 800°C with a thermobalance, by changing the content of O2 and the flow of air which were supplied to them, the rate of heating them, etc. The experiment clarified the two things: (l) When either carbon black or carbon residue was mixed with over 2wt% of calcium, temperature lowered in this combustion. Then O2 was over 10vol% and air was over l0ml/min. (2) Combustion of soot containg calcium affected the shape of soot considerably. Carbon black with large surface area promoted the combustion effectively.