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Condenser tubes, corrosion

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Image
Published: 01 January 2000
Fig. 31 Schematic of erosion-corrosion of a condenser tube More
Image
Published: 01 March 2001
Fig. 7 Schematic of erosion-corrosion of a condenser tube More
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
... with moisture forms sulfurous acid (H 2 SO 3 ) as well, but as it is a much weaker acid, it does not pose any corrosion problems. At certain temperatures, these vapors condense as a concentrated solution of sulfurous and sulfuric acid on cooler surfaces of the tubes, and hence this process is termed cold...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430343
EISBN: 978-1-62708-253-2
... and condensate returns. The contamination of boiler feedwater (BFW) can be a slow, degenerative process or an instantaneous, catastrophic event. Boiler water chemistry control has a major role to play in averting boiler tube failure. Boiler water chemistry control is a very vast subject by itself...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430379
EISBN: 978-1-62708-253-2
... the conductivity of water and hence the higher the tendency for corrosion and scaling. 7.2.3 Iron Suspended or dissolved iron from feedwater is deposited on boiler tube surfaces and can lead to tube failure. Rusted boiler tubes and condensate return (i.e., condensate water) are the main source...
Image
Published: 01 December 2015
Fig. 46 Accelerated aqueous chloride corrosion below inlet nozzle of crude tower overhead condenser due to droplet impingement. Note partial loss of carbon steel baffles and localized corrosion along top of admiralty metal (C44300) tubes. More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430087
EISBN: 978-1-62708-253-2
... conductivity, a low coefficient of thermal expansion, resistance to erosion and corrosion, and adequate mechanical properties in terms of tensile, creep, and fatigue strength. Copper-base alloys possess this set of properties and hence are traditionally used for the manufacture of condenser tubes. However...
Image
Published: 01 January 2000
Fig. 18 Thick calcium carbonate deposits on a condenser tube and a copper transfer pipe. Heavily stratified deposits reflect changes in water chemistry, heat transfer, and flow. Corrosion may be slight beneath heavy accumulations of fairly pure calcium carbonate because such layers can inhibit More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030292
EISBN: 978-1-62708-282-2
... in water service and commonly are restricted to applications below 260 °C (500 °F) because of strength limitations. Admiralty brass (C44300) tubes have been extensively used in water-cooled condensers and coolers at most refineries. However, in general, copper alloys suffer accelerated corrosion in both...
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 2018
DOI: 10.31399/asm.tb.fibtca.t52430204
EISBN: 978-1-62708-253-2
..., the condenser tubes are susceptible to MIC. Microbially induced corrosion is often associated with the presence of tubercles or slimy organic substances. Microbially induced corrosion occurs both as general corrosion and in a localized form such as pitting, although localized pitting is more frequent...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430314
EISBN: 978-1-62708-253-2
...-velocity stream of condensed water droplets Excessive blowing pressure injecting a large amount of ash at high velocity Misalignment of blower nozzle Overall malfunction of the soot blowing system As a result, there is metal loss due to thinning of the tube from the OD side. Figure 6.126...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030184
EISBN: 978-1-62708-282-2
... as the implementation of cathodic protection on buried pipelines and other structures has become a standard practice in many countries. Fig. 8 Catastrophic pipeline failure involving corrosion. Courtesy of Corrosioneering—the On-line Corrosion Journal The criteria for cathodic protection have become...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030247
EISBN: 978-1-62708-282-2
... up from $589 million for surface piping and facility costs, $463 million in downhole tubing expenses, and $320 million in capital expenditures related to corrosion. The control of corrosion through the use of coatings, metallurgy, nonmetallic materials of construction, cathodic protection, inhibitors...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080001
EISBN: 978-1-62708-304-1
... service with the surrounding environment, resulting in high-temperature corrosion. In gaseous environments, high-temperature corrosion is defined as the corrosion that takes place above the maximum temperature at which acids condense and dew-point corrosion takes place. Although a majority of high...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080437
EISBN: 978-1-62708-304-1
... tensile and rupture strengths as well as ductility, thus resulting in rupture of the steel component during service. There are two sources of hydrogen that contribute to hydrogen attack of steels in industries. One source of hydrogen is from the corrosion of steel by boiler water in the waterwall tube...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480353
EISBN: 978-1-62708-318-8
... provides total reliability in many marine and naval applications. In addition, the fatigue strength and toughness of many titanium alloys are unaffected in seawater, and lean titanium alloys with low alloy content are immune to seawater stress corrosion. Titanium tubing has been used with great success...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310247
EISBN: 978-1-62708-286-0
... level Coker SCA, H 2 S Coke drums 409 Depending on crude corrosivity Gas plants H 2 S, water, Cl − , ammonia Compressor coolers, reboiler tubes AL-6XN, 2205, 2507 … Trays 410S, 316L … Amine plant Ammonia, MEA, DEA Reboilers, trays, filters, condenser tubing 304L, 316L...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080335
EISBN: 978-1-62708-304-1
... and alloys. It also discusses corrosion protection methods for furnace waterwalls and superheater tubes in waste-to-energy boilers. corrosion corrosion protection superheaters waste incinerators waste-to-energy boilers 12.1 Introduction Municipal solid waste (MSW) is a combination...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910301
EISBN: 978-1-62708-250-1
... the heater and the vessel wall. Hot gases that are not corrosive to steel can form corrosive condensates on the cold portions of a poorly insulated unit. Proper design or insulation can prevent such localized cooling ( Fig. 3 ). Conversely, vapors from noncorrosive liquids can cause attack; exhausts...