Simultaneous removal of SOx and NOx in flue gas at power stations over a Cu/Na-13X zeolite catalyst

Haitao Zhao, Tao Wu, Jun He, Sam Kingman, Kaiqi Shi, Di Shen, Yiyun Zhang

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

8 Citations (Scopus)

Abstract

Due to their significant impacts on the environment and health, there has been a growing environmental concern on sulfur oxide (SOx), nitrogen oxides (NOx) emissions to the atmosphere in the past two decades. Flue gas at coal-fired power stations is one of the main sources for the emissions of SOx and NOx. More and more stringent regulations on the emission of these pollutants come in force, which have put a high pressure on coal-fired power generators. Cost-effective and sustainable technologies for the reduction of such pollutants from flue gas have become increasingly important nowadays. However, even though numerous attempts have been made aiming at developing technologies for the removal of SOx and NOx, not much effort has been made on the simultaneous conversion of NOx and SOx in flue gas via selective catalytic reduction. This paper presents the study of simultaneous removal of SO2 and NO over a synthesized Cu/Na-13X zeolite catalyst using carbon monoxide as a reducing agent. The characterization of fresh and spent catalysts was carried out using X-Ray Diffraction (XRD) and Brunauer-Emmett-Teller (BET) Surface Area Analyser. The experiments on the selective reduction of SO2 and NO were carried out using a multi-functional catalyst testing rig with an online flue gas analyser. It has been found that zeolite has a good capability of SO2 adsorption even under elevated temperatures. The removal efficiency was found to be 100% for SO2 and 89% for NO over a Cu/Na-13X zeolite catalyst.

Original languageEnglish
Title of host publicationAdvances in Materials Science and Engineering
Pages125-129
Number of pages5
DOIs
Publication statusPublished - 2013
Event2012 International Conference on Advances in Materials Science and Engineering, AMSE 2012 - Seoul, Korea, Republic of
Duration: 9 Dec 201210 Dec 2012

Publication series

NameAdvanced Materials Research
Volume650
ISSN (Print)1022-6680

Conference

Conference2012 International Conference on Advances in Materials Science and Engineering, AMSE 2012
Country/TerritoryKorea, Republic of
CitySeoul
Period9/12/1210/12/12

Keywords

  • Coal-firing
  • Desulfurization and denitrification
  • Flue gas
  • Zeolite catalyst

ASJC Scopus subject areas

  • General Engineering

Fingerprint

Dive into the research topics of 'Simultaneous removal of SOx and NOx in flue gas at power stations over a Cu/Na-13X zeolite catalyst'. Together they form a unique fingerprint.

Cite this