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fuel ash corrosion

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430147
EISBN: 978-1-62708-253-2
...) Chelate corrosion Fire-side corrosion: Waterwall corrosion or reduced atmosphere corrosion Fuel ash corrosion Coal-ash corrosion Oil-ash corrosion Hot corrosion Acid dew point corrosion or cold-end corrosion SCC Polythionic acid stress-corrosion cracking (PASCC) Fire...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080321
EISBN: 978-1-62708-304-1
... Abstract Fireside corrosion can be a serious problem in oil-fired boilers and in refinery furnaces fired with low-grade fuels. This chapter provides an overview of fireside or oil-ash corrosion and the problems it can cause in utility power boilers and petrochemical refinery furnaces...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430290
EISBN: 978-1-62708-253-2
... Abstract Fossil fuels produce many byproducts that, if not fully combusted, put boiler tubes at risk. Fuel ash, chemical residues, and process heat pose the greatest threat and are the primary contributors to fireside corrosion. This chapter covers various types of fireside corrosion...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080259
EISBN: 978-1-62708-304-1
... of coal may present different issues in combustion, thus resulting in different types of materials issues and corrosion. More detailed discussion and coverage of boilers and the fuel can be found in Steam — Its Generation and Use (Babcock & Wilcox, Ref 1 ) and Combustion Fossil Power (Combustion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430001
EISBN: 978-1-62708-253-2
... of ash, sulfur, and nitrogen can also be used. Natural gas or fuel oil is used primarily as a start-up fuel to preheat the fluidized bed. Higher combustion efficiency Lower combustion temperature because of a high coefficient of heat transfer due to rapid mixing in the fluidized bed leads to lower...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.9781627083041
EISBN: 978-1-62708-304-1
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080335
EISBN: 978-1-62708-304-1
... focuses on the corrosion issues related to boilers burning municipal solid waste. 12.2 Fuels, Combustion Environments, and Boilers Municipal solid waste typically contains paper and paperboard, plastics, rubber, textile, leather, batteries, food waste, yard waste, metal, glass, and other...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080201
EISBN: 978-1-62708-304-1
... and chemical processing are frequently contaminated with various amounts of sulfur. Sulfur is one of the corrosive species in petroleum-refining operations. When combustion takes place with excess air to ensure complete combustion of fuel for generating heat in many industrial processes, sulfur in the fuel...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030025
EISBN: 978-1-62708-282-2
...; most of the corrosion encountered in turbines burning liquid fuels can be described as type I hot corrosion, which occurs primarily in the metal temperature range of 850 to 950 °C (1550 to 1750 °F). This is a sulfidation-based attack on the hot gas path parts involving the formation of condensed salts...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030292
EISBN: 978-1-62708-282-2
... Abstract This chapter presents the primary considerations and mechanisms for corrosion and how they are involved in the selection of materials for process equipment in petroleum refineries and petrochemical plants. In addition, specific information on mechanical properties, corrosion, sulfide...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030235
EISBN: 978-1-62708-282-2
... reprocessing reactors 750–800 1380–1470 Oxidation (steam), fluorination (HF) Oil-fired boiler superheaters 850–900 1560–1650 Fuel ash corrosion Gas turbine blades corrosion to 950 to 1740 Sulfates, chlorides, oxidation, ash Waste incinerators—superheaters 480 895 Chlorination, sulfidation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.9781627082532
EISBN: 978-1-62708-253-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030176
EISBN: 978-1-62708-282-2
...%, as in IN-657 (N07765), increases resistance to melting sulfates and vanadates found in fuel ash. High-temperature oxidation resistance of nickel-chromium alloys is improved further by alloying with aluminum, as in alloys 601 (N06601) and 617 (N06617). Alloying additions of silicon and rare earth elements...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430204
EISBN: 978-1-62708-253-2
.... Energy dispersive spectroscopy on the red-colored corrosion product that had formed on the outer surface of the tube showed carbon, oxygen, magnesium, silicon, potassium, and calcium. The contamination was essentially due to moisture, unburnt fuel, and ash content from the flue gases. Energy dispersive...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630237
EISBN: 978-1-62708-270-9
... a notch effect that also can limit life. Some environments may be more harmful than others. Attack of fireside surfaces of steam-boiler tubes by ash from vanadium-bearing fuel oils can be quite severe; external tube metal loss occurs, leading to thinning and increased tube strain. Also, vanadium-ash...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490183
EISBN: 978-1-62708-340-9
... corrosion Low temperature Waterwall Coal ash Oil ash Erosion Fly ash Falling slag Sootblower Coal particle Fatigue Vibration Thermal Corrosion Lack of quality control Maintenance cleaning damage Chemical excursion damage Material defects Welding defects...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870135
EISBN: 978-1-62708-299-0
... Abstract Aluminum products are used extensively in natural atmospheres and in and around water. They are also widely used in building materials and as containers for chemicals and food and beverage products. This chapter discusses the corrosion mechanisms associated with these environments...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280203
EISBN: 978-1-62708-267-9
... and corrosion-resistant steels have been used to clean superalloys without serious contamination. The ash pickling of superalloys after abrasive cleaning provides additional assurance that no harmful surface contamination remains. Wet tumbling by the barrel or vibratory method can be used to descale heat...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030117
EISBN: 978-1-62708-282-2
...: Ref 8 Fretting corrosion has been a continuing problem in nuclear reactors. The condition is found on heat-exchanger tubes and on fuel elements. In both cases, long, flexible tubes are in contact with support surfaces and subjected to vibrations generated by fluid flow as the coolant flows...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490383
EISBN: 978-1-62708-340-9
..., reheaters, turbine forgings, and casings needed. II 34.5 5000 650/595/595 1200/1100/1100 Significant research and development needed on austenitic rotor forgings and coal-ash-corrosion-resistant boiler tubing. Full-size test facilities needed. (a) Temperatures given are for main steam...