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Keywords: Boiler
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Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12773
... Boiler loop system magnetite permission manuscript inhibitor Publication Division hydrazine Houston vci ABSTRACT Hydrazine is used as an oxygen scavenger to control corrosion in steam generating systems, despite being a genotoxic carcinogen. The International Conference on Chemicals...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2019, March 24–28, 2019
Paper Number: NACE-2019-12742
... integrity scale removal effect Publication Division permission scale removal ratio texas 77084 Boiler remediation of hydrates Efficiency dispersant Scale Removal wax inhibition asphaltene remediation scale inhibition polymer corrosion rate hardness scale formation manuscript hardness...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-11012
... vapor phase corrosion inhibitor was investigated. Electrochemical tests were conducted and showed a significantly lower corrosion rate in steam generating boilers and boiling water. Short term (720 hours) corrosion tests in boiling water showed a decreased corrosion rate from 5.3 mpy to 1.93 mpy for 50...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-11361
... ABSTRACT Iron, copper and hardness scale deposition occurring on internal boiler generating surfaces seriously impact steam generation in industrial steam boilers and generators. Deposits lead to a loss in efficiency, serious corrosion, and short and long term overheating problems leading...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2018, April 15–19, 2018
Paper Number: NACE-2018-11372
... ABSTRACT This work presents the results of a field-based study designed to evaluate the corrosion performance of five alloys exposed in a Canadian biomass-fired boiler attached to a gasifier for 3,552 h. The corrosion performance of the candidate alloys can be ranked as follows: N08028...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2017, March 26–30, 2017
Paper Number: NACE-2017-8988
... ABSTRACT Boiler treatment chemistry has been shown to be critical in maintaining clean heat transfer surfaces and minimizing corrosion in higher pressure industrial boilers. Monitoring boiler feedwater contamination, especially iron and copper, from condensate leakage and upsets is a critical...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2017, March 26–30, 2017
Paper Number: NACE-2017-8989
... ABSTRACT Scale deposition on heat transfer surfaces can seriously affect steam generation in modern boilers. Deposits can lead to a loss of efficiency, serious corrosion, short and long term overheating problems, and ultimately tube failures. Plant profitability and production losses...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2016, March 6–10, 2016
Paper Number: NACE-2016-7493
... alloys. However many of the feed constituents can be rich in sulfur and phosphorus which are very detrimental to the performance of nickel-base alloys. Thus the makeup of the feed to be burned largely dictates the optimum materials for use in the boiler. The performance of several iron- and nickel-base...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2016, March 6–10, 2016
Paper Number: NACE-2016-7754
... Abstract Weld overlay of the UNS K1157 (ASME SA213-T11) boiler tubes is required in coal fired boilers operating in a low-NO? combustion mode to prevent excessive corrosion of the pressure tubes. When retrofitting boilers to a low-NO? combustion mode (to reduce emissions), it was found...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2016, March 6–10, 2016
Paper Number: NACE-2016-7188
... Abstract The observation of corrosion on interior tube side of depropaniser Reboiler, stabilizer Reboiler, low pressure, high pressure steam condenser, air cooler, steam drum and pipe of boiler during gas refinery plant shut down, leads to have a survey of steam loop condition. Borescopic...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-5553
... and hazardous chemicals such as HCI with thiourea for cleaning boilers to much less hazardous (and environmentally improved) organic acids and chelating agents. Initially, necessary corrosion inhibitors for Hel contained very hazardous chemicals including arsenic compounds and polyaromatic hydrocarbons. Over...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-5728
... Abstract Material selection for waterwall and superheater/reheater tubing for a heavy liquid fuel-fired supercritical boiler was performed based on hot corrosion testing. This was carried out at varying temperatures through simulated firing conditions using heavy liquid fuel on bare carbon...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-6017
... Abstract Corrosion protection of large equipment’s internal surfaces (distillation towers, pipelines, tanks, boilers, heat exchangers, etc.) during storage, transportation/shipping and long term mothballing (up to 10 years) is a worldwide problem 1-18 . In many cases, well-known technology...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-6059
... Abstract Tube damage due to stress-assisted corrosion (SAC, or Corrosion Fatigue) is relatively common in recovery boilers. Another damage mechanism, known as "phosphate hideout," has been attributed to under-deposit corrosion in high-pressure boilers. Phosphate hideout is characterized...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-6106
... Abstract Synthetic dispersants have been used to control waterside deposition in industrial and commercial boilers for many years. Over the past two decades steady improvements in the cost and performance of reverse osmosis membrane and increased usage of de-ionized water in lower pressure...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-6180
... Abstract Volatile filming corrosion inhibitors are increasingly utilized in industrial, utility and commercial boiler systems to control corrosion of low carbon steel and copper alloys throughout the steam-water cycle. This paper presents a novel approach for combining volatile filming...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-5532
... Abstract In days gone by, most industrial facilities such as refineries, chemical plants, manufacturing plants, etc., had an internal "water doctor" that had a good overall working knowledge of the cooling and boiler systems and the water technology needed to protect them from corrosion...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2015, March 15–19, 2015
Paper Number: NACE-2015-5650
... Abstract Nickel-based alloys with high chromium contents such as 50%Cr-50%Ni are known to have excellent resistance to sulfur attack in coal-fired and heavy oil-fired boilers. However, commercial high-chromium nickel based alloys containing 40-50% chromium levels are supplied only in product...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2014, March 9–13, 2014
Paper Number: NACE-2014-4126
... ABSTRACT With the application of low NO x burner technology for reducing NO x emissions in coal-fired boilers in early 1990s, many boilers began experiencing drastic increases in tube wastage rates on the water wall tubes made of carbon and low alloy steels due to sulfidation attack under...
Proceedings Papers
Publisher: NACE International
Paper presented at the CORROSION 2014, March 9–13, 2014
Paper Number: NACE-2014-4170
... ABSTRACT In recent years, steam condensate is often recovered to save energy and various water sources are used as raw water for boiler make-up due to water shortages at many boiler plants. In these situations, the roles of deposit control and scale inhibition in boiler water system become...
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