Potassium modified NaY: A selective and durable catalyst for dehydration of lactic acid to acrylic acid

Peng Sun; Dinghua Yu; Kaimei Fu; Mingyan Gu; Yang Wang; He Huang; Hanjie Ying

doi:10.1016/j.catcom.2009.02.019

Potassium modified NaY: A selective and durable catalyst for dehydration of lactic acid to acrylic acid

Peng Sun, Dinghua Yu, Kaimei Fu, Mingyan Gu, Yang Wang, He Huang, Hanjie Ying

生物与制药工程学院

Nanjing Tech University

科研成果: 期刊稿件 › 文章 › 同行评审

91 引用（Scopus）

摘要

Potassium modification significantly improved the selectivity and durability of NaY zeolites during lactic acid dehydration reaction. The selectivity of 2.8K/NaY zeolites improved from 14.8% to 50.0% over NaY catalyst. Adding potassium also prolonged catalyst life. After 22 h the acrylic acid selectivity of NaY zeolites reduced to less than 10.0% while that of 3.5K/NaY retained 35.6%. Characterizations with NH₃-TPD, CO₂-TPD, N₂ adsorption and thermal analysis techniques revealed that the enhancement of catalytic performances could be attributed to the tuned acidity/basicity and the potassium electronic promoter effect.

源语言	英语
页（从-至）	1345-1349
页数	5
期刊	Catalysis Communications
卷	10
期	9
DOI	https://doi.org/10.1016/j.catcom.2009.02.019
出版状态	已出版 - 25 4月 2009

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abstract = "Potassium modification significantly improved the selectivity and durability of NaY zeolites during lactic acid dehydration reaction. The selectivity of 2.8K/NaY zeolites improved from 14.8% to 50.0% over NaY catalyst. Adding potassium also prolonged catalyst life. After 22 h the acrylic acid selectivity of NaY zeolites reduced to less than 10.0% while that of 3.5K/NaY retained 35.6%. Characterizations with NH3-TPD, CO2-TPD, N2 adsorption and thermal analysis techniques revealed that the enhancement of catalytic performances could be attributed to the tuned acidity/basicity and the potassium electronic promoter effect.",

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author = "Peng Sun and Dinghua Yu and Kaimei Fu and Mingyan Gu and Yang Wang and He Huang and Hanjie Ying",

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T1 - Potassium modified NaY

T2 - A selective and durable catalyst for dehydration of lactic acid to acrylic acid

AU - Sun, Peng

AU - Yu, Dinghua

AU - Fu, Kaimei

AU - Gu, Mingyan

AU - Wang, Yang

AU - Huang, He

AU - Ying, Hanjie

PY - 2009/4/25

Y1 - 2009/4/25

N2 - Potassium modification significantly improved the selectivity and durability of NaY zeolites during lactic acid dehydration reaction. The selectivity of 2.8K/NaY zeolites improved from 14.8% to 50.0% over NaY catalyst. Adding potassium also prolonged catalyst life. After 22 h the acrylic acid selectivity of NaY zeolites reduced to less than 10.0% while that of 3.5K/NaY retained 35.6%. Characterizations with NH3-TPD, CO2-TPD, N2 adsorption and thermal analysis techniques revealed that the enhancement of catalytic performances could be attributed to the tuned acidity/basicity and the potassium electronic promoter effect.

AB - Potassium modification significantly improved the selectivity and durability of NaY zeolites during lactic acid dehydration reaction. The selectivity of 2.8K/NaY zeolites improved from 14.8% to 50.0% over NaY catalyst. Adding potassium also prolonged catalyst life. After 22 h the acrylic acid selectivity of NaY zeolites reduced to less than 10.0% while that of 3.5K/NaY retained 35.6%. Characterizations with NH3-TPD, CO2-TPD, N2 adsorption and thermal analysis techniques revealed that the enhancement of catalytic performances could be attributed to the tuned acidity/basicity and the potassium electronic promoter effect.

KW - Dehydration

KW - Durability

KW - Lactic acid

KW - NaY

KW - Potassium

KW - Selectivity

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DO - 10.1016/j.catcom.2009.02.019

M3 - 文章

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SN - 1566-7367

VL - 10

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JO - Catalysis Communications

JF - Catalysis Communications

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Potassium modified NaY: A selective and durable catalyst for dehydration of lactic acid to acrylic acid

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