一种改善焦化汽油贮存安定性的新工艺  

A NEW TECHNOLOGY OF IMPROVING THE STORAGE STABILITY OF COKER GASOLINE

作　　者：徐鸽[1] 邬国英[1] 赵亚利[1] 谭平[1] 

机构地区：[1]江苏石油化工学院化工系

出　　处：《石油与天然气化工》2001年第2期76-78,共3页Chemical engineering of oil & gas

基　　金：中石化总公司;金陵石化公司资助

摘　　要：本文研究了南京炼油厂延迟焦化汽油作为醚化原料的一种新的精制工艺。首先用顺丁烯二酸酐 (MA)精制 ,然后通过 3%醇钠溶液抽提 ,除去其中的碱性氮、二烯烃、恶臭及部分含硫化合物 ,使焦化汽油的贮存安定性明显改善 ,辛烷值 (MON)在 6 2 .7～ 6 5.0 (原料油为 6 3.1)。用精制后的轻馏分(初馏点～ 80℃ )作为醚化原料 ,催化剂寿命明显提高。The paper presents a new refining technology as etherification material with coker gasoline of Nanjing Refinery.At first,in order to remove basic nitrogen,the diene,fetor and some sulfides etc.,coker gasoline is treated with maleic anhydride(MA) and abstracted with 3% sodium-alkoxide solvent.As a result,the storage stability of obtained gasoline is improved greatly, and the octane number(MON) is 62.7～65.0(feedstock is 63.1).The light distillate(IBP～80℃)of refining gasoline is used as etherification material,the lifetime of catalyst is improved obviously.

关 键 词：焦化汽油 MA精制 贮存安定性 辛烷值 催化剂寿命 

分 类 号：TE88[石油与天然气工程—油气储运工程]