| 高效吸附精制脱除石脑油中氮化物的研究 |
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| 引用本文： | 李超,沈本贤,产圣,刘纪昌.高效吸附精制脱除石脑油中氮化物的研究[J].石化技术与应用,2011,29(4):303-307. |
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| 作者姓名： | 李超 沈本贤 产圣 刘纪昌 |
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| 作者单位： | 1. 华东理工大学,化学工程联合国家重点实验室,上海,200237
2. 中国石油化工股份有限公司,安庆分公司,安徽,安庆,246002 |
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| 摘 要： | 用载酸13 X分子筛吸附脱除中国石油化工股份有限公司安庆分公司石脑油中的有机氮化物,浸渍剂为磷酸溶液。结果表明,脱氮后,石脑油有机氮质量分数可降至小于0.7×10-6,脱除率为84.5%;单次循环吸附脱除石脑油中的有机氮时,m(石脑油)/m(吸附剂)为190.3;最佳液相吸附脱氮条件为吸附温度20℃,空速6 h-1;脱附条件为温度200℃,氮气空速60 h-1,脱附时间3 h;先对失活吸附剂脱附,然后用磷酸溶液再生,活性可恢复为新鲜吸附剂的92.3%。
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| 关 键 词： | 石脑油 氮化物 13X分子筛 吸附剂 脱氮 |
Study on adsorption denitrogenation of naphtha |
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| Li Chao,Shen Benxian,Chan sheng,Liu Jichang.Study on adsorption denitrogenation of naphtha[J].Petrochemical Technology & Application,2011,29(4):303-307. |
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| Authors: | Li Chao Shen Benxian Chan sheng Liu Jichang |
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| Affiliation: | Li Chao1,Shen Benxian1,Chan sheng2,Liu Jichang1(1.State Key Laboratory of Chemical Engineering,East China University of Science and Technology,Shanghai 200237,China,2.Anqing Subsidiary Company,SINOPEC,Anqing 246002,China) |
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| Abstract: | The organic nitrogen in Anqing naphtha was adsorbed by 13X molecular sieve which had been impregnated in phosphoric acid.The results showed that after denitrogenation,the mass fraction of organic nitrogen in naphtha could be reduced to less than 0.7×10-6,and the nitrogen removal rate was 84.5%.The mass ratio of naphtha to adsorbent was 190.3 in a single cycle adsorption denitrogenation.The optimal liquid adsorption condition was temperature 20℃,space velocity 6h-1.The desorption condition was temperature 200℃,nitrogen space velocity 60h-1,purge 3h.After regenerated by phosphoric acid,the adsorbent activity could be recovered to 92.3% of the fresh one. |
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| Keywords: | naphtha nitrogenous compound 13 X molecular sieve adsorbent denitrogenation |
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