Publication detail

Absorption cleaning of flue gas with special focus on SO2 elimination

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"
}