Influence of the preparation process on the performance of three hydrotalcite-based De-SOx catalysts

Jiechen Kong, Lei Jiang, Zhiping Huo, Xiangyu Xu, David G. Evans, Jiaqing Song, Mingyuan He, Zhaofei Li, Qian Wang, Lijun Yan

Research output: Contribution to journalArticleOtherpeer-review

4 Citations (Scopus)

Abstract

In this study, three hydrotalcite-based De-SOx catalysts were prepared using different approaches: impregnation, coprecipitation, and precipitation using the separate nucleation and aging steps (SNAS) method. The physicochemical properties of these catalysts were studied and their SOx removal behaviors were characterized with a custom-built apparatus simulating the conditions in a fluid catalytic cracking (FCC) regenerator. The results showed that the catalyst prepared using the SNAS method had the highest SOx adsorption rate, the largest SOx pick-up capacity (1.31 g/g cat.) and the lowest onset reduction temperature (805 K), which makes it an excellent De-SOx catalyst with promising applications in industry.

Original languageEnglish
Pages (from-to)59-62
Number of pages4
JournalCatalysis Communications
Volume40
DOIs
Publication statusPublished - 2013
Externally publishedYes

Keywords

  • Ce/MgAl mixed oxides
  • Reduction temperature
  • SNAS

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