固体超强酸脱除柴油中碱性氮  

Removal of basic nitrogen compounds from diesel by solid superacids

作　　者：金昌磊[1] 吕燕[1] 苑丽质[1] 李宁[1] 潘家斌[1] 

机构地区：[1]唐山学院环境与化学工程系,河北唐山063000

出　　处：《工业催化》2010年第11期51-54,共4页Industrial Catalysis

基　　金：唐山学院自然科学类(09005B)

摘　　要：采用固体超强酸SO_4^(2-)/TiO_2和分子筛改性固体超强酸SO_4^(2-)/TiO_2/USY作为脱氮剂脱除柴油中碱性氮化物,对两者的脱氮效果进行比较,选取合适的脱氮剂,并考察了脱氮剂与柴油质量比、反应温度、搅拌时间和沉降时间对碱性氮化物脱除效果的影响。结果表明,分子筛改性后固体超强酸的脱氮能力有较大提高,且增大脱氮剂与柴油质量比、升高反应温度、延长搅拌时间和沉降时间均可提高柴油中碱性氮化物的脱除率。选取SO_4^(2-)/TiO_2/USY作为脱氮剂,当其与柴油质量比为6:100、反应温度20℃、搅拌时间30 min和沉降时间60 min,柴油中碱性氮的脱除率达78.36%,柴油回收率可达84.37%。Removal of basic nitrogen compounds from diesel was studied using solid superacid SO4^2-/TiO2 and SO4^2-/TiO2 modified by USY. Effects of sorbent/oil mass ratio, reaction temperature, reaction time and settlement time were investigated. The results showed that basic nitrogen removal efficiency the modified superacid SO4^2-/TiO2/USY was superior to that of unmodified SO4^2-/TiO2; the removal efficiency increased with sorbent/oil mass ratio, reaction time and settlement time. Basic nitrogen removal efficiency of 78.36% and diesel oil recovery of 84.37% were attained using S024,/TiO2/USY as the sorbent under following condition： sorbent/oil mass ratio 6： 100, reaction temperature 20 ℃, reaction time 30 min and settlement time 60 min.

关 键 词：石油化学工程 柴油 碱性氮脱除 固体超强酸 分子筛改性 非加氢精制 

分 类 号：TQ426.95[化学工程] TE624.5[石油与天然气工程—油气加工工程]