Continuously Selective Synthesis of Diethanolamine Catalyzed by B2O3/HZSM-5

doi:10.3696/j.issn.1672-6952.2011.02.003

Journal of Liaoning Petrochemical University ›› 2011, Vol. 31 ›› Issue (2): 8-10.DOI: 10.3696/j.issn.1672-6952.2011.02.003

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Continuously Selective Synthesis of Diethanolamine Catalyzed by B₂O₃/HZSM-5

ZHAO Xue-qin, ZHANG Zhao-fei, TONG Tian-yu, YIN Yan-chao,XIN Chun-ling,WANG Zhi-min, LIAN Pi-yong*

School of Chemistry and Materials Science,Liaoning Shihua University, Fushun Liaoning 113001, P.R.China

Received:2010-12-06 Published:2011-06-25 Online:2017-07-05

硼酸负载HZSM-5催化合成二乙醇胺

赵学勤,张照飞,佟天宇,尹延超,辛春玲,王志敏,连丕勇*

辽宁石油化工大学化学与材料科学学院,辽宁抚顺113001

作者简介:赵学勤(1987-),女,山东济南市,在读硕士。

Abstract

Abstract:

B₂O₃/HZSM-5 catalyst was prepared by multiple impregnation, and used as a catalyst for synthesis of diethanolamine from anhydrous liquid ammonia and epoxyethane in a continuous fixed bed operation. Effect of boric acid amount on pore size and volume of the catalysts was studied and found that optimum B₂O₃ content is about 3%. Meanwhile, the reaction conditions are optimized and listed as follows: molar ratio of anhydrous liquid ammonia/epoxyethane 10∶3, reaction temperature 60 ℃, reaction pressure 1.0~3.0 MPa and volumetric space velocity 1.5 h^-1. Under these conditions, the yield of diethanol amine could be reach 56%.

Key words: Diethanolamine , , Maceration , , Shape selective catalysis , , Fixed bed , HZSM-5

摘要： 采用多次浸渍法制备了B₂O ₃/HZSM-5催化剂,选择无水液氨和环氧乙烷作为原料,使用固定床进
行连续生产合成二乙醇胺。考察了硼酸负载量对催化剂的孔径、孔容的影响,并探讨了最佳反应条件。实验结果表
明,B₂O₃ 最佳负载量为3%,最佳反应条件为:n(液氨)/n(环氧乙烷)为10∶3,温度60℃,压力1.0~3.0MPa,体积
空速为1.5h^-1,在最佳条件下,二乙醇胺的产率为56%。

关键词: 二乙醇胺 , 浸渍法 , , 择形催化 , , 固定床 , , HZSM-5

ZHAO Xue-qin, ZHANG Zhao-fei, TONG Tian-yu, YIN Yan-chao,XIN Chun-ling,WANG Zhi-min, LIAN Pi-yong. Continuously Selective Synthesis of Diethanolamine Catalyzed by B₂O₃/HZSM-5[J]. Journal of Liaoning Petrochemical University, 2011, 31(2): 8-10.

赵学勤,张照飞,佟天宇,尹延超,辛春玲,王志敏,连丕勇. 硼酸负载HZSM-5催化合成二乙醇胺[J]. 辽宁石油化工大学学报, 2011, 31(2): 8-10.

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Continuously Selective Synthesis of Diethanolamine Catalyzed by B₂O₃/HZSM-5

硼酸负载HZSM-5催化合成二乙醇胺

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