Preparation parameters and reduction conditions of Ni-Cu-Mn-K/γ-Al2O3 catalysts for high-temperature shift reaction

YE Binghuo; JIANG Lilong; WEI Kemei; LIN Cheng

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Preparation parameters and reduction conditions of Ni-Cu-Mn-K/γ-Al2O3 catalysts for high-temperature shift reaction

更新时间：2025-12-10

- Preparation parameters and reduction conditions of Ni-Cu-Mn-K/γ-Al2O3 catalysts for high-temperature shift reaction
- CIESC Journal Issue 6, Pages: 1445-1450(2007)
- 作者机构：
  
  1. 福州大学化肥催化剂国家工程研究中心
  2. 福州大学化学化工学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 June 2007，
  
  Published：05 June 2007
- 稿件说明：
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YE Binghuo, JIANG Lilong, WEI Kemei, et al. Preparation parameters and reduction conditions of Ni-Cu-Mn-K/γ-Al2O3 catalysts for high-temperature shift reaction[J]. CIESC Journal, 2007, (6): 1445-1450.
DOI：

YE Binghuo, JIANG Lilong, WEI Kemei, et al. Preparation parameters and reduction conditions of Ni-Cu-Mn-K/γ-Al2O3 catalysts for high-temperature shift reaction[J]. CIESC Journal, 2007, (6): 1445-1450. DOI：

摘要

以γ-Al2O3为载体，采用二步等体积浸渍法，制备了多元体高温水煤气变换催化剂。采用活性表征、TG、DTA和TPR等方法，考察了制备参数和还原条件对催化剂的影响。结果表明：第一步浸渍时间为300 min时达到浸渍平衡;第一步浸渍组分(Ni∶Cu∶Mn)配比2∶1.5∶1、第二步K+的加入量为5%、焙烧温度400℃时制得的催化剂具有高活性;还原最高温度为400℃，还原过程添加适量的水蒸气时，催化剂具有良好的催化性能和热稳定性能。催化性能优于国内外现有工业产品。而且还消除了传统的共沉淀法制备工艺产生的大量氨氮废水。

Abstract

Using γ-Al2O3 as a support

a multiple-metal （Ni-Cu-Mn-K/Al2O3）catalyst for high- temperature water gas shift reaction was prepared by an equivalent-volumetric two-step impregnation method.Preparation parameters and reduction conditions were determined by TG

DTA and TPR characterization techniques.The results showed that

when loading ratio (Ni∶Cu∶Mn)

impregnation time

and calcination temperature were 2∶1.5∶1

300 min and 400℃ for the first-step impregnation respectively

loading of K+ was 5% in the second step impregnation

and reduction temperature was 400℃ and a proper amount of steam was added

the catalyst prepared in this work showed excellent catalytic performance and thermal stability

as compared with the existing commercial catalysts.Meanwhile

the ammonium-nitrogen wastewater produced with conventional preparation methods was eliminated with the eqivalent-volumetic impregnation method proposed in this work.

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