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JECHA, D. CHLÁPEK, P. DVOŘÁK, R. BÉBAR, L.
Original Title
Absorption cleaning of flue gas with special focus on SO2 elimination
Type
journal article - other
Language
English
Original Abstract
Current interest in environmental issues is closely linked to issues of waste treatment. Waste which is not suitable for material utilization may be processed in several other ways; it may be landfilled, thermally processed, etc. These processes are necessary for detoxication, decrease of negative impact on environment as well as for secondary energy production from waste. However, thermal processing also has its positive and negative side. Some of the disadvantages include air pollution from emissions, formation of residual waste and water pollution. Air pollution is caused by hazardous polluting substances in flue gases which are formed during incineration. Residual waste includes products formed during incineration process, such as ashes. Flue gas cleaning equipment may produce secondary waste in the form of waste water which contains wide range of dissolved polluting substances. Waste incinerators are equipped with various technological devices for flue gas cleaning which are based on various physical-chemical mechanisms. This type of equipment cleans mostly following hazardous substances in flue gases: volatile organic compounds (VOCs), particulate matter (PM), nitrogen oxides (NOx), acid components in the form of hydrogen chloride (HCl), hydrogen fluoride (HF) and sulphur dioxide (SO2), polychlorinated dibenzo-p-dioxines and furanes (PCDD/F) and heavy metals. Project companies in current industrial practice design new flue gas cleaning units on the basis of similar existing equipment with modifications motivated by the needs of specific requirements of the given operations. Effective design of the flue gas equipment necessitates using calculation methods and subsequent equipment optimization so that the efficiency reaches its maximum. Optimum design of wet flue gas scrubbing may be finalized using calculation methods created with help of data acquired during experiments in pilot operations. Tests for SO2 elimination using various pH absorbents were carried out at experimental unit with two levels for flue gas cleaning. Calculation studies in ChemCad commercial programme were conducted under the same conditions. Comparison of individual results will be presented in the article. Calculation of pressure losses at the experimental unit will be given as well as detailed description of the equipment and conducted experiments.
Keywords
flue gas cleaning, absorption, SO2, ChemCad
Authors
JECHA, D.; CHLÁPEK, P.; DVOŘÁK, R.; BÉBAR, L.
RIV year
2010
Released
28. 8. 2010
Publisher
AIDIC Servizi S.r.l.
Location
Milano, Italy
ISBN
1974-9791
Periodical
Chemical Engineering Transactions
Year of study
21
Number
1
State
Republic of Italy
Pages from
619
Pages to
624
Pages count
6
BibTex
@article{BUT50492, author="David {Jecha} and Petr {Chlápek} and Radek {Dvořák} and Ladislav {Bébar}", title="Absorption cleaning of flue gas with special focus on SO2 elimination", journal="Chemical Engineering Transactions", year="2010", volume="21", number="1", pages="619--624", issn="1974-9791" }