文献类型：期刊文献

中文题名：原位定向焦化脱氮剂的筛选与应用

英文题名：Selection and application of denitrifiers for in situ directional coking denitrification

作者：何仲文[1];裘志浩[1];殷强锋[1];石尧麒[1];周长路[1];辛忠[1]

机构：[1]上海市多相结构材料化工重点实验室,华东理工大学,上海200237

年份：2016

卷号：36

期号：10

起止页码：122

中文期刊名：现代化工

外文期刊名：Modern Chemical Industry

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：中海石油舟山石化有限公司合作项目(ZSHT-FW-2012-011)

语种：中文

中文关键词：原位脱氮;延迟焦化;焦化蜡油;氮含量

外文关键词：in situ denitrification;delayed coking;coker gas oil;nitrogen content

摘要：基于原位定向焦化脱氮法,首先考察了有机酸、氧化活性炭及实验室自制的DN-1三种脱氮剂脱除含氮化合物的效果。结果显示,DN-1体系的氮脱除效果最为显著。随后对基于DN-1脱氮剂的原位定向脱氮工艺进行了研究。研究结果表明,工艺采用分步焦化,且DN-1水溶液质量分数为25%时,脱氮效果最佳,焦化产物的碱氮质量分数可降至655μg/g,总氮质量分数降为1889μg/g,达到催化裂化操作的常规要求。
Organic acid,activated carbon,and DN-1(made in laboratory)are used as the denitrifiers in the in situ directional coking denitrification process.Their performances are investigated.The results reveal that DN-1 exhibits the best denitrification performance.The in situ directional denitrification process based on DN-1 is also studied.Two-steps coking process,including 12 hours of pre-coking at 180℃and the coking process afterward,is undertaken.The best nitrogen removal effect can be achieved when 25%DN-1 aqueous solution is added.The basic nitrogen content and total nitrogen content in coking gas oil can be reduced to 655 ppm and 1889 ppm,respectively,which satisfies the requirements of catalytic cracking.