Publication detail

Release of ammonia from conventional power plant fly ash after the introduction of SNCR process

BERANOVÁ, D. OPRAVIL, T. PTÁČEK, P. SNOP, R.

Original Title

Release of ammonia from conventional power plant fly ash after the introduction of SNCR process

English Title

Release of ammonia from conventional power plant fly ash after the introduction of SNCR process

Type

conference paper

Language

en

Original Abstract

The paper deals with a study of various factors affecting the release of ammonia from conventional power plant fly ash after introduction of SNCR (Selective non-catalytic reduction). SNCR is a method of flue gas denitrification based on the chemical reduction of nitrogen oxide into nitrogen and water vapour. Reduction has many by-products, various ammonia salts, which could contaminate fly ash and deteriorate its properties and application. The chemical and phase composition of fly ash was determined by X-Ray Fluorescence and X-Ray Diffraction. To predict the contaminated fly ash behaviour, the samples of fly ash with known ammonia content was prepared by mixing fly ash with exact amount of ammonia hydrogensulfate. Tests were performed on the samples prepared from contaminated fly ash as it was, contaminated fly ash with deionized water and as a mixture of contaminated fly ash, lime, gypsum and water (further stabilizate). Effects of various storage and mixing conditions on prepared samples properties were studied.

English abstract

The paper deals with a study of various factors affecting the release of ammonia from conventional power plant fly ash after introduction of SNCR (Selective non-catalytic reduction). SNCR is a method of flue gas denitrification based on the chemical reduction of nitrogen oxide into nitrogen and water vapour. Reduction has many by-products, various ammonia salts, which could contaminate fly ash and deteriorate its properties and application. The chemical and phase composition of fly ash was determined by X-Ray Fluorescence and X-Ray Diffraction. To predict the contaminated fly ash behaviour, the samples of fly ash with known ammonia content was prepared by mixing fly ash with exact amount of ammonia hydrogensulfate. Tests were performed on the samples prepared from contaminated fly ash as it was, contaminated fly ash with deionized water and as a mixture of contaminated fly ash, lime, gypsum and water (further stabilizate). Effects of various storage and mixing conditions on prepared samples properties were studied.

Keywords

conventional power plant fly ash, SNCR, release of ammonia

Released

12.07.2018

Publisher

IOP Publishing

Location

Češkovice

ISBN

1757-899X

Periodical

IOP Conference Series: Materials Science and Engineering

Year of study

379

State

GB

Pages from

1

Pages to

6

Pages count

6

URL

Full text in the Digital Library

Documents

BibTex


@inproceedings{BUT148858,
  author="Denisa {Beranová} and Tomáš {Opravil} and Petr {Ptáček} and Roman {Snop}",
  title="Release of ammonia from conventional power plant fly ash after the introduction of SNCR process",
  annote="The paper deals with a study of various factors affecting the release of ammonia from conventional power plant fly ash after introduction of SNCR (Selective non-catalytic reduction). SNCR is a method of flue gas denitrification based on the chemical reduction of nitrogen oxide into nitrogen and water vapour. Reduction has many by-products, various ammonia salts, which could contaminate fly ash and deteriorate its properties and application. The chemical and phase composition of fly ash was determined by X-Ray Fluorescence and X-Ray Diffraction. To predict the contaminated fly ash behaviour, the samples of fly ash with known ammonia content was prepared by mixing fly ash with exact amount of ammonia hydrogensulfate. Tests were performed on the samples prepared from contaminated fly ash as it was, contaminated fly ash with deionized water and as a mixture of contaminated fly ash, lime, gypsum and water (further stabilizate). Effects of various storage and mixing conditions on prepared samples properties were studied.",
  address="IOP Publishing",
  booktitle="International Conference Building Materials, Products and Technologies",
  chapter="148858",
  doi="10.1088/1757-899X/379/1/012031",
  howpublished="online",
  institution="IOP Publishing",
  year="2018",
  month="july",
  pages="1--6",
  publisher="IOP Publishing",
  type="conference paper"
}