CAJ | 학술논문

针对主动冷却中利用碳氢燃料裂解吸热释放热沉的特性,研究分析了碳氢燃料在低压条件下的裂解反应特征,从产气率、气相组分与结焦等方面进行了对比研究.结果表明,在相同停留时间,压力降低,裂解的产气率更高,裂解气组分中烯烃含量大幅提升,表明低压裂解具有一定的反应定向性.通过吸光光度法半定量分析高温裂解残液,发现裂解压力降低,吸光度值降低,表明低压裂解可以明显抑制结焦反应发生.
침대주동냉각중이용탄경연료렬해흡열석방열침적특성,연구분석료탄경연료재저압조건하적렬해반응특정,종산기솔、기상조분여결초등방면진행료대비연구.결과표명,재상동정류시간,압력강저,렬해적산기솔경고,렬해기조분중희경함량대폭제승,표명저압렬해구유일정적반응정향성.통과흡광광도법반정량분석고온렬해잔액,발현렬해압력강저,흡광도치강저,표명저압렬해가이명현억제결초반응발생.
This study focuses on the cracking reaction of hydrocarbon fuel under low pressure.The rate of pyrolysis gas yielding,pyrolysis gas composition and coke formation are studied and compared.The results demonstrate that during the same residence time,the rate of gas yielding increases while the pressure is reduced.A substantial rise of the olefin content in the pyrolysis gas indicates that the cracking reaction is directed.The semi-quantitative analysis of pyrolysis residue absorbance shows that absorbance values are reduced with the decrease of cracking pressure,and low pressure pyrolysis can significantly inhibit coking reaction.