摘要
用“混酸”法处理馏分油所得的合成硝基化合物NT-11作为十六烷值增进剂,油溶性好,且安全可靠。对不同产地柴油基础油进行添加性能考察,结果表明,在催化裂化柴油中添加0.1～0.5m%时,十六烷值即可提高3～7个单位,在含10m%直馏柴油的调合柴油中,添加0.5m%即可达到含60m%直馏柴油的调合柴油的十六烷值水平。通过电子顺磁共振波谱方法,对添加剂的作用机理进行了研究,与柴油基础油相比较,加剂油自由基浓度变化大,链反应迅速,从而缩短着火落后期,油品燃烧性能提高。
Cetane number (CN)improver NT-11 has been synthesized from the straight run
distillate by mixed acid method.It is oil-soluble and save to use.Its performance have
been investigated showing that the CN of catalytic LCO can be increased by 3～7 units
with the dosage of 0.1～0.5m% of NT-11,while for blended diesel fuel containing
10m% of virgin distillate,the CN comes up to the standard of blended fuel with 60m%
of virgin distillate.In addition,the mechanism of CN enhancement has been investigated
by means of Electron Spin Resonance (ESR).Compared with the base stock,the free
radical concentration of the dosaged oil is increased and therefore improves the burning
characteristics of the diesel fuel.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
1993年第2期55-62,共8页
Acta Petrolei Sinica(Petroleum Processing Section)
