介孔Co-MCM-41分子筛吸附脱除FCC柴油中的碱性氮化物

被引：3

作者：

洪新

李云赫

高畅

赵永华

唐克

机构：

[1] 辽宁工业大学化学与环境工程学院

来源：

精细石油化工 | 2018年 / 35卷 / 01期

关键词：

Co-MCM-41; 分子筛; 催化裂化柴油; 碱性氮化物; 吸附脱氮;

D O I：

暂无

中图分类号：

TE626.24 []; TQ424 [吸附剂];

学科分类号：

082903 [林产化学加工工程];

摘要：

研究了不同Co掺杂量介孔Co-MCM-41分子筛吸附脱除FCC柴油中的碱性氮化物。静态吸附实验结果表明,各Co-MCM-41分子筛的吸附脱碱氮能力均优于MCM-41,其中Co-MCM-41(0.06)的吸附容量最大为9.11mg/g,优于MCM-41的7.36mg/g。但当掺杂Co/Si比大于0.06时,过多的Co会以Co3O4形式高度分散在分子筛孔道中,堵塞了吸附活性位,使其吸附脱除FCC柴油中碱性氮化物的能力反而有所下降。Co-MCM-41(0.06)静态实验时FCC柴油的GC-NCD结果表明,脱除了82.21%苯胺类碱性氮化物,44.68%的弱碱性吲哚类氮化物及24.43%的非碱性的咔唑类氮化物,说明Co-MCM-41(0.06)对碱性氮化物具有较好的选择性。动态实验结果表明,每克Co-MCM-41(0.06)可将15.2mL的FCC柴油的碱氮从235.95μg/g脱除到10μg/g以下,吸附容量为3.09mg/g,动态实验时MCM-41吸附脱碱氮能力几乎完全消失了。采用焙烧或乙醇溶剂洗涤再生处理模拟柴油的Co-MCM-41(0.06)几乎完全恢复了吸附脱氮能力,但处理FCC柴油试样的再生效果较差。

引用

页码：16 / 21

页数：6

共 16 条

[1]

Remarkable improvement in adsorptive denitrogenation of model fossil fuels with CuCl/activated carbon; prepared under ambient condition.[J].Imteaz Ahmed;Sung Hwa Jhung.Chemical Engineering Journal.2015,

[2]

Adsorptive denitrogenation and desulfurization of diesel using activated carbons oxidized by (NH4)2S2O8 under mild conditions.[J].Xue Han;Hongfei Lin;Ying Zheng.The Canadian Journal of Chemical Engineering.2015, 3

[3]

Adsorptive denitrogenation of model fuels with porous metal-organic frameworks (MOFs): Effect of acidity and basicity of MOFs.[J].Imteaz Ahmed;Zubair Hasan;Nazmul Abedin Khan;Sung Hwa Jhung.Applied Catalysis B: Environmental.2013,

[4]

Denitrogenation of middle distillates using adsorbent materials towards ULSD production: A review.[J].Georgina C. Laredo;Pedro M. Vega-Merino;Fernando Trejo-Zárraga;Jesús Castillo.Fuel Processing Technology.2013,

[5]

Recent Trends in the Cleaning of Diesel Fuels via Desulfurization Processes [J].

Hanafi, S. A. ;

Mohamed, M. S. .

ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, 2011, 33 (06) :495-511

[6]

Characterization and synthesis of Ce-incorporated mesoporous molecular sieves under microwave irradiation condition [J].

Zhao, Qian ;

Wang, Qian ;

Tang, Yajing ;

Jiang, Tingshun ;

Li, Chang-sheng ;

Yin, Hengbo .

KOREAN JOURNAL OF CHEMICAL ENGINEERING, 2010, 27 (04) :1310-1315

[7]

Effect of the nitrogen heterocyclic compounds on hydrodesulfurization using in situ hydrogen and a dispersed Mo catalyst.[J].Kun Liu;Flora T.T. Ng.Catalysis Today.2009, 1

[8]

Influence of fuel properties, nitrogen oxides, and exhaust treatment by an oxidation catalytic converter on the mutagenicity of diesel engine emissions [J].

Buenger, Jurgen ;

Krahl, Jurgen ;

Weigel, Andreas ;

Schroeder, Olaf ;

Bruening, Thomas ;

Mueller, Michael ;

Hallier, Ernst ;

Westphal, Gotz .

ARCHIVES OF TOXICOLOGY, 2006, 80 (08) :540-546

[9]

Characterization of Co;Al-MCM-41 and its activity in the t -butylation of phenol using isobutanol.[J].M Karthik;A.K Tripathi;N.M Gupta;A Vinu;M Hartmann;M Palanichamy;V Murugesan.Applied Catalysis A; General.2004, 1

[10]

Iron; cobalt or nickel substituted MCM-41 molecular sieves for oxidation of hydrocarbons.[J].V Parvulescu;B.-L Su.Catalysis Today.2001, 1

← 1 2 →