Publication detail

Removal of NOx at pilot unit using commercially available catalysts

JECHA, D. BRUMMER, V. KREJČÍ, T. JÍCHA, J.

Original Title

Removal of NOx at pilot unit using commercially available catalysts

Type

conference paper

Language

English

Original Abstract

Nitrogen oxides (NOx) are among basic pollutants released into the air during combustion of fuels. Emission limits are getting more and more restrictive regardless of the type of facility; currently sufficient technologies for pollutants removal have to be modernized or replaced by more efficient procedures. Financial aspects have to be considered as well as it is the only way to introduce the technology to investors and thus create conditions for its practical usage. This paper presents initial experiments carried out on the testing device with the use of commercially available catalysts. Experiments were executed using variable process conditions (inlet concentration of NOx, gas flow, stoichiometry of ammonia dosing). Main goal was to test catalysts at lower operating temperature, than is commonly used. The temperature of flue gas is an important aspect to maintain NOx conversion, however reheating of the flue gas generates an inconsiderable increase in operating costs of full-scale plants. Measurements are conducted at a new experimental unit. This unit is designed for experiments in laboratory and operational conditions, is of compact size and may be dismantled easily. Unit is equipped with advanced controlling, which gives enough options for operational conditions setting. Therefore, series of planned measurements were carried out and technology properties were described in detail (NOx reduction efficiency, ideal working conditions, undesirable effects).

Keywords

NOx, SCR, selective catalytic reduction, flue gas

Authors

JECHA, D.; BRUMMER, V.; KREJČÍ, T.; JÍCHA, J.

Released

25. 8. 2018

Publisher

Czech Society of Chemical Engineering

Location

Prague, Czech republic

ISBN

9781510881198

Book

Conference Proceeding 23rd International Congress of Chemical and Process Engineering, CHISA 2018 and 21st Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction, PRES 2018

Pages from

218

Pages to

223

Pages count

6

URL

https://secure.confis.cz/chisa2018/ProgramFin/P3.aspx#642

BibTex

@inproceedings{BUT152137,
  author="David {Jecha} and Vladimír {Brummer} and Tomáš {Krejčí} and Jaroslav {Jícha}",
  title="Removal of NOx at pilot unit using commercially available catalysts",
  booktitle="Conference Proceeding 23rd International Congress of Chemical and Process Engineering, CHISA 2018 and 21st Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction, PRES 2018",
  year="2018",
  pages="218--223",
  publisher="Czech Society of Chemical Engineering",
  address="Prague, Czech republic",
  isbn="9781510881198",
  url="https://secure.confis.cz/chisa2018/ProgramFin/P3.aspx#642"
}