STUDY ON PYROLYSIS OF UREA AND ITS APPLICATION IN DENITRIFCATION

YU Xiaowei1; LI Yuchun1; JIANG Ya1; PANG Feifei1; CHEN Jinsheng2; SHANG Xuesong2 1.College of Chemical and Biological Engineering

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STUDY ON PYROLYSIS OF UREA AND ITS APPLICATION IN DENITRIFCATION

更新时间：2025-09-28

- STUDY ON PYROLYSIS OF UREA AND ITS APPLICATION IN DENITRIFCATION
- Thermal Power Generation Vol. 41, Issue 1, Pages: 1-5(2012)
- 作者机构：
  
  1. 长沙理工大学化学与生物工程学院
  2. 中国科学院城市环境研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC： X773
- Published：2012
- 稿件说明：
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YU Xiaowei1, LI Yuchun1, JIANG Ya1, et al. STUDY ON PYROLYSIS OF UREA AND ITS APPLICATION IN DENITRIFCATION[J]. Thermal power generation, 2012, 41(1): 1-5.
DOI：

YU Xiaowei1, LI Yuchun1, JIANG Ya1, et al. STUDY ON PYROLYSIS OF UREA AND ITS APPLICATION IN DENITRIFCATION[J]. Thermal power generation, 2012, 41(1): 1-5. DOI：

摘要

介绍了国内外对尿素热解的研究进展及其在选择性催化还原(SCR)脱硝中的应用。重点分析了尿素和尿素-水溶液在不同温度条件下的分解

探讨了催化剂促进尿素热解中间产物异氰酸(HNCO)的水解和提高NH3转化率的作用。促进尿素分解的催化剂有V2O5-WO3/TiO2、Cu-ZSM5、Fe-ZSM5、TiO2、Al2O3等

其中粉末状V2O5-WO3/TiO2能极大地提高HNCO的水解速率。

Abstract

The progress of study on pyrolysis of urea at home and abroad

and its application in selective catalystic reduction(SCR) denitrification process have been presented

the pyrolysis of urea and urea-water solution under different temperatures being analysed

and an approach to use catalyst in promoting pyrolysis of urea being made.The isocyanic acid(HNCO)

as an intermediate product in hydrolysis of catalysis

plays a key role to enhancing coversion rate of NH3.The catalysts for promoting decomposition of urea have V2O2-WO3/TiO2

Cu-ZSM5

Fe-ZSM5

TiO2

and Al2O3 etc.

among them

the powdered V2O5-WO3/TiO2 can extremely enhance the speed rate of hydrolysis for HNCO.

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