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The Influence of SO2 and HCl Concentrations on the Consumption of Sodium Bicarbonate during Flue Gas Treatment.

SYSNO ASEP	0552161
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	The Influence of SO2 and HCl Concentrations on the Consumption of Sodium Bicarbonate during Flue Gas Treatment.
Author(s)	Zach, Boleslav (UCHP-M)_{ORCID, RID, SAI} Šyc, Michal (UCHP-M)_{RID, SAI, ORCID} Svoboda, Karel (UCHP-M)_{RID, ORCID, SAI} Pohořelý, Michael (UCHP-M)_{RID, ORCID, SAI} Šomplák, R. (CZ) Brynda, Jiří (UCHP-M)_{RID, ORCID, SAI} Moško, Jaroslav (UCHP-M)_{RID, ORCID, SAI} Punčochář, Miroslav (UCHP-M)_{RID, ORCID, SAI}
Source Title	Energy and Fuels. - : American Chemical Society - ISSN 0887-0624 Roč. 35, č. 6 (2021), s. 5064-5073
Number of pages	10 s.
Language	eng - English
Country	US - United States
Keywords	flue gas ; deacidification ; sodium bicarbonate
Subject RIV	JE - Non-nuclear Energetics, Energy Consumption ; Use
OECD category	Energy and fuels
R&D Projects	TE02000236 GA TA ČR - Technology Agency of the Czech Republic (TA ČR)
	EF16_026/0008413 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Method of publishing	Open access with time embargo (19.03.2022)
Institutional support	UCHP-M - RVO:67985858
UT WOS	000631407400034
EID SCOPUS	85103437208
DOI	10.1021/acs.energyfuels.0c03655
Annotation	The paper focuses on the competitive influence of SO2 and HCl during their removal from flue gas by sodium bicarbonate. The experimental investigation was conducted at a unique combination of conditions: the experiments were conducted on a large scale, with real flue gas, and the removal of SO2 and HCl was studied simultaneously. The aim was to ensure that experimental conditions are reasonably realistic and therefore transferable to practice. The results from experiments at various temperatures within the range from 170 to 255 °C did not indicate a significant influence of temperature. The sorbent conversion varied significantly with the lowest achieved conversion of 26% and the highest conversion of 85%. There was a clear trend showing that higher concentrations of HCl make it more difficult to achieve the selected target concentration of SO2 in clean flue gas, suggesting the preferred reaction of formed sodium carbonate with HCl. The influence of HCl on the removal of SO2 was quantified and is presented in the form of regression models. The found regressors were the initial concentrations of HCl and SO2 in raw flue gas and the target concentration of SO2 in the clean flue gas. The regression models are in good agreement with the experimental data and can be used for the prediction of the behavior of a flue gas treatment system or its optimization.
Workplace	Institute of Chemical Process Fundamentals
Contact	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Year of Publishing	2022
Electronic address	http://hdl.handle.net/11104/0327307

Number of the records: 1