络合剂对加氢精制催化剂影响的研究进展.pdf

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络合剂对加氢精制催化剂影响的研究进展
黄婷婷,柴永明,商红岩,燕群,刘晨光
(中国石油大学(华东)重质油国家重点实验室,CNPC催化重点实验室,山东青岛266580)
摘要:络合剂作为一种常用的助剂,由于其能提高加氩催化剂的性能而得到了研究者的重视。本文综述了络合
剂对加氩催化剂加氯性能的影响,总结了引入络合剂后催化剂硫化行为方面的研究进展。简要个绍了络合剂的
加入对金属漫渍液性质与催化剂加活性的影响,及采用共浸渍和分步漫渍引入络合剂时络合剂不同的作用机
理。总体来看,络合剂的添加可以延迟助剂Ni(Co)的硫化,降低Mo(W)的硫化温度,进而提高Mo(W)的硫化程
度,减弱活性纽分与载体的相互作用,增强了活性组分的分散性,最终提高了催化剂的加氢脱硫活性。,最后指
出对络合剂改性的加氩脱硫催化剂在作用机理、工业催化领域等方面的研究是未来的研究方向
关键词:加氢脱硫;催化剂;催化剂活化;络合剂;活性相
中图分类号:TE624
文献标志码:A文章编号:1000-6613(2014)04-0914-07
DOI:10.3969/1.iss.1000-6613.2014.04.021
Applications of chelating ligands for preparing hydrorefining catalysts
HUANG Tingting, CHA Yongming, SHANG Hongyan, YAN un, LIU Chenguang
State Key Laboratory of Heavy Oil Processing, Key Laboratory of Catalysis, CNPC, China University of Petroleum
Huadong), Qingdao 266580, Shandong, China)
Abstract: As a kind of commonly used organic additives, researchers pay close attention to chelating
gents because of their promoting effect on catalytic performance. The effect of chelating agents on
hydrogenation performance and sulfidation behavior of catalysts are reviewed. The effect of chelating
agent on impregnation solution and catalytic activity are introduced, based on the different ways of
impregnation, and the mechanisms of chelating agents are discussed. Overall, the addition of chelatin
gents could delay sulfidation of promoter Ni(Co )and decrease Mo(W)sulfidation temperature, so as
to improve the sulfidation degree of Mo(W), weaken the interaction between metals and supports and
improve the dispersion of active components. All of above aspects result in increased
hydrodesul furization activity. Finally, research on the mechanisms and industrial catalysis of chelating
agents modification are also prospected
Key words: HDS; catalyst; catalyst activation; chelating ligands; active phase
为控制环境中硫氮化合物的含量,环保法规对体材料、优化催化剂制备方法、调变活性金属组分、
石油产品硫氮含量的要求越来越苛刻。加氢处理是添加助剂(如F、P、B、络合剂)等方面取得了重
有效降低馏分油硫含量的方法,其脱硫效果主要取
决于所用催化剂的加氢脱硫(HDS)活性,因而迫
收稿日期:2013-08-19;修改稿日期:2013-11-15。
基金项目:国家自然科学青年基金(21006128)、教育部博士点新教师
切需要不断提高加氢催化剂的性能。典型的HDS基金(2010304东省自然科学青年基金(7R201DBO0
催化剂是以γ-A1O3为载体,Ⅷ族以及VⅥIB族金属为及中央高校基本科研业务费专项资金项目。
活性金属构成的(最常用的VIB族元素是铬、锥
第一作者:黄婷婷(1989ー),女,硕土研究生,从事加氢催化剂及催
化材料研究。联系人:柴永明,博士,副教授,从事加氢催化剂及催
钨,VⅧ族元素是铁、钴、镍)。最近儿年,在改进载化新材料研究。 E-mail yuchai(dupe. edu. cn