Abstract
In today's flue gas cleaning systems with advanced energy recovery systems and improved flue gas cleaning, the use of polymeric materials has continuously increased in applications where the flue gas environment is to corrosive to be handled with metallic materials. Typical polymeric materials used are fibre reinforced plastics (FRP), glassflake-filled linings, polypropylene (PP) and fluoropolymers. Demands on increased profitability and efficiency at incineration plants involve that also polymeric materials have to face more demanding environments with increased temperature, temperature changes, changes in fuel composition and therewith fluegas composition and longer service intervals. The knowledge on how polymeric materials perform in general and how these service conditions influence them, is, however, poor and continuous status assessment is therefore necessary. The overall aim of this project has been to assess simple techniques for status assessment of polymeric materials in flue gas cleaning equipment and to perform an inventory of present experience and knowledge on the use of polymeric materials. The project consisted of an inventory of present experience, analysis of material from shut-down plants and plants still in service, field testing in a plant adding sulphur during combustion and the assessment of different non-destructive testing (NDT) methods by laboratory experiments. The results
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Citation Formats
Roemhild, Stefanie.
Handbook - Status assessment of polymeric materials in flue gas cleaning systems; Handbok - Statusbedoemning av polymera material i roekgassystem.
Sweden: N. p.,
2011.
Web.
Roemhild, Stefanie.
Handbook - Status assessment of polymeric materials in flue gas cleaning systems; Handbok - Statusbedoemning av polymera material i roekgassystem.
Sweden.
Roemhild, Stefanie.
2011.
"Handbook - Status assessment of polymeric materials in flue gas cleaning systems; Handbok - Statusbedoemning av polymera material i roekgassystem."
Sweden.
@misc{etde_1005358,
title = {Handbook - Status assessment of polymeric materials in flue gas cleaning systems; Handbok - Statusbedoemning av polymera material i roekgassystem}
author = {Roemhild, Stefanie}
abstractNote = {In today's flue gas cleaning systems with advanced energy recovery systems and improved flue gas cleaning, the use of polymeric materials has continuously increased in applications where the flue gas environment is to corrosive to be handled with metallic materials. Typical polymeric materials used are fibre reinforced plastics (FRP), glassflake-filled linings, polypropylene (PP) and fluoropolymers. Demands on increased profitability and efficiency at incineration plants involve that also polymeric materials have to face more demanding environments with increased temperature, temperature changes, changes in fuel composition and therewith fluegas composition and longer service intervals. The knowledge on how polymeric materials perform in general and how these service conditions influence them, is, however, poor and continuous status assessment is therefore necessary. The overall aim of this project has been to assess simple techniques for status assessment of polymeric materials in flue gas cleaning equipment and to perform an inventory of present experience and knowledge on the use of polymeric materials. The project consisted of an inventory of present experience, analysis of material from shut-down plants and plants still in service, field testing in a plant adding sulphur during combustion and the assessment of different non-destructive testing (NDT) methods by laboratory experiments. The results of the project are summarised in the form of a handbook which in the first place addresses plant owners and maintenance staff at incineration plants and within the pulp and paper industry. In the introductory chapter typical polymeric materials (FRP, flake linings, PP and fluoropolymers) used in flue gas cleaning equipment are described as well as the occurring corrosion mechanisms. The inventory of process equipment is divided into sections about scrubbers, flue gas ducts, stacks, internals and other equipment such as storage tanks. Typical damages are illustrated for different construction materials. The following chapter describes various NDT techniques - thermal imaging, ultrasonic, moisture meter, spectroscopic methods, digital X-ray, terrahertz technique and other technical aids with respect to advantages, disadvantages and limitations at presence. The results are worked into the following chapters on inspection and status assessment (chapter 5), measures to increase service life (chapter 6) and general recommendations (chapter 7). The impact of different types of damages on the service reliability is discussed. In the end of the report is an outlook with possibilities, development and needs for improvement for different NDT techniques. Many of the techniques are still under development and need to be improved. The presented results are of use for plant owners and maintenance staff when performing inspections, detecting and assessing damages and evaluating measures in terms of own work or engaging inspectorates or other maintenance companies.}
place = {Sweden}
year = {2011}
month = {Jan}
}
title = {Handbook - Status assessment of polymeric materials in flue gas cleaning systems; Handbok - Statusbedoemning av polymera material i roekgassystem}
author = {Roemhild, Stefanie}
abstractNote = {In today's flue gas cleaning systems with advanced energy recovery systems and improved flue gas cleaning, the use of polymeric materials has continuously increased in applications where the flue gas environment is to corrosive to be handled with metallic materials. Typical polymeric materials used are fibre reinforced plastics (FRP), glassflake-filled linings, polypropylene (PP) and fluoropolymers. Demands on increased profitability and efficiency at incineration plants involve that also polymeric materials have to face more demanding environments with increased temperature, temperature changes, changes in fuel composition and therewith fluegas composition and longer service intervals. The knowledge on how polymeric materials perform in general and how these service conditions influence them, is, however, poor and continuous status assessment is therefore necessary. The overall aim of this project has been to assess simple techniques for status assessment of polymeric materials in flue gas cleaning equipment and to perform an inventory of present experience and knowledge on the use of polymeric materials. The project consisted of an inventory of present experience, analysis of material from shut-down plants and plants still in service, field testing in a plant adding sulphur during combustion and the assessment of different non-destructive testing (NDT) methods by laboratory experiments. The results of the project are summarised in the form of a handbook which in the first place addresses plant owners and maintenance staff at incineration plants and within the pulp and paper industry. In the introductory chapter typical polymeric materials (FRP, flake linings, PP and fluoropolymers) used in flue gas cleaning equipment are described as well as the occurring corrosion mechanisms. The inventory of process equipment is divided into sections about scrubbers, flue gas ducts, stacks, internals and other equipment such as storage tanks. Typical damages are illustrated for different construction materials. The following chapter describes various NDT techniques - thermal imaging, ultrasonic, moisture meter, spectroscopic methods, digital X-ray, terrahertz technique and other technical aids with respect to advantages, disadvantages and limitations at presence. The results are worked into the following chapters on inspection and status assessment (chapter 5), measures to increase service life (chapter 6) and general recommendations (chapter 7). The impact of different types of damages on the service reliability is discussed. In the end of the report is an outlook with possibilities, development and needs for improvement for different NDT techniques. Many of the techniques are still under development and need to be improved. The presented results are of use for plant owners and maintenance staff when performing inspections, detecting and assessing damages and evaluating measures in terms of own work or engaging inspectorates or other maintenance companies.}
place = {Sweden}
year = {2011}
month = {Jan}
}