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Thermodynamic possibilities of flue gas dry desulfurization, de-HCl, removal of mercury, and zinc compounds in a system with Na2CO3, Ca(OH)2, sulfur, and HBr addition.

SYSNO ASEP	0504969
Document Type	C - Proceedings Paper (int. conf.)
R&D Document Type	Conference Paper
Title	Thermodynamic possibilities of flue gas dry desulfurization, de-HCl, removal of mercury, and zinc compounds in a system with Na2CO3, Ca(OH)2, sulfur, and HBr addition.
Author(s)	Ružovič, Tomáš (UCHP-M)_{RID, ORCID, SAI} Svoboda, Karel (UCHP-M)_{RID, ORCID, SAI} Leitner, J. (CZ) Pohořelý, Michael (UCHP-M)_{RID, ORCID, SAI} Hartman, Miloslav (UCHP-M)_{RID, ORCID, SAI}
Source Title	Proceedings 46th International Conference of the Slovak Society of Chemical Engineering. - Bratislava : Slovak Society of Chemical Engineering, 2019 / Markoš J. ; Mihaľ M. - ISBN 978-80-8208-011-0
Pages	s. 1-12
Number of pages	12 s.
Publication form	Medium - C
Action	International Conference of the Slovak Society of Chemical Engneering /46./
Event date	20.05.2019 - 23.05.2019
VEvent location	Tatranské Matliare
Country	SK - Slovakia
Event type	EUR
Language	eng - English
Country	SK - Slovakia
Keywords	dry flue gas cleaning ; mercury removal ; thermodynamics
Subject RIV	CF - Physical ; Theoretical Chemistry
OECD category	Physical chemistry
R&D Projects	EF16_026/0008413 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Institutional support	UCHP-M - RVO:67985858
Annotation	Thermodynamic studies (analyses)of reactions of HCl, HBr, SO2, NO, elemental sulfur and mercury with solid Na2CO3and Ca(OH)2were performed bytheminimization of Gibbs energy[11-13]for the model systems used. Theoretical equilibrium concentrations of gaseous species and formed solid phases were determined in this way for the temperature range 400 –560 K. For selected reactions, the Gibbs reaction energies have been also computed and compared in the temperature range 400 –600 K to assess their probabilities and preferencesin reactions. The thermodynamic analyses involvedsystems with computations of gas/solid phase composition on the basis of assumption of solid phases with unit activities(stable, basic state). It is evident that the designof lue gas cleaning processes cannotbe based only on theoretical thermodynamic analyses, but we suppose that the data are useful as some limits, applicable and valuable for practice, where the equilibria are not attained due to various reasons(kinetics, insufficient time for reactions, diffusional limitations, changing activities of solid phases, etc.
Workplace	Institute of Chemical Process Fundamentals
Contact	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Year of Publishing	2020
Electronic address	http://hdl.handle.net/11104/0296504

Number of the records: 1