摘要
从催化裂化反应机理出发 ,提出了两个反应区的概念 ,设计了具有两个反应区的串联提升管反应器并形成相应的工程技术 ,在此基础上进行了中小型探索试验和工业试验。 1 4Mt/a多产异构烷烃的催化裂化装置试验标定结果表明 :与现有的催化裂化工艺相比 ,该工艺不仅优化了产物分布 ,干气和油浆产率分别下降了0 41%和 0 99% ,液体收率增加了 1 17% ,而且所生产的汽油烯烃含量下降约 14 1% ,异构烷烃增加约为12 9% ,硫的质量分数w(s)下降 2 6 5 % ,诱导期增加 ,汽油的RON下降而MON增加 。
A concept of two different reaction zones was proposed based on the FCC reaction mechanism. The concept was used to design a novel reactor with corresponding engineering measures. Experiments were conducted on the newly developed reaction system. The test run results of the 1 4 Mt/a MIP commercial unit showed that mass yield of dry gas was reduced by 0 41% and mass yield of slurry was reduced by 0 99%, while mass yield of light ends was increased by 1 17%. The volume fraction of olefin in the cracked naphtha dropped by 14 1% while the volume fraction of isoparaffin increased by 12 9% and the mass fraction of sulfur was reduced by 26 5% with maintaining the octane rating index unchanged and a significant extension of the induction period compared with the conventional FCC process.
出处
《中国工程科学》
2003年第5期55-58,共4页
Strategic Study of CAE
基金
国家重点基础研究基金资助项目 (G2 0 0 0 0 480 0 1)
关键词
催化裂化
汽油
烯烃
异构烷烃
芳烃
catalytic cracking
cracked naphtha
olefin
isoparaffin
aromatic
