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Effect of oxygen gas exposure on T91 alloy at high temperature oxidation of steam reformer

Steam-Methane Reforming (SMR) is one of the most economical ways to produce hydrogen from natural gas. Steam reforming industry is hugely relied on using supercritical power plant where the working temperature of the plant must exceed 600 °C. Along with the high operating temperature, the situation...

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Main Authors: Rosdin, Muhammad Rafiq Haikal, Ismail, Ahmad Abdul Mun'im, Abdul Hamid, Abd. Malek, Purwanto, Hadi, Illias, Suhaimi, Syed Abu Bakar, Syed Noh, Ani, Mohd. Hanafi
Format: Proceeding Paper
Language:English
English
Published: Springer 2023
Subjects:
T Technology (General)
Online Access:http://irep.iium.edu.my/108861/1/108861_Effect%20of%20oxygen%20gas%20exposure.pdf
http://irep.iium.edu.my/108861/2/108861_Effect%20of%20oxygen%20gas%20exposure_SCOPUS.pdf
http://irep.iium.edu.my/108861/
https://link.springer.com/chapter/10.1007/978-981-19-9509-5_65
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spelling my.iium.irep.1088612023-12-19T03:58:15Z http://irep.iium.edu.my/108861/ Effect of oxygen gas exposure on T91 alloy at high temperature oxidation of steam reformer Rosdin, Muhammad Rafiq Haikal Ismail, Ahmad Abdul Mun'im Abdul Hamid, Abd. Malek Purwanto, Hadi Illias, Suhaimi Syed Abu Bakar, Syed Noh Ani, Mohd. Hanafi T Technology (General) Steam-Methane Reforming (SMR) is one of the most economical ways to produce hydrogen from natural gas. Steam reforming industry is hugely relied on using supercritical power plant where the working temperature of the plant must exceed 600 °C. Along with the high operating temperature, the situation promotes the acceleration of high temperature oxidation. This will cause fouling and spalling of oxide scales at the boiler tube. Eventually, fouling will reduce heat transfer between the tube and steam generated, causing a higher temperature is needed to produce steam. Until now, the only approach used by the industry is to manually replace the corroded boiler tube. Other than that, many studies have been conducted on the behavior of boiler tubes at temperatures exceeding 800 °C. However, to our knowl- edge, no study has been done to investigate the air electrolyte substrate interfacial electrochemical reaction at high temperature. This project was carried out to inves- tigate the corrosion potential of T91 boiler tube at 650 °C for 2 h, 8 h, and 12 h, measure the current density (Icorr) by calculating corrosion potential (Ecorr) value using Tafel Extrapolation and determine the oxidation potential of oxygen gas at 650 °. The oxide layer thickness at exposed temperature was determined to measure the oxidation kinetics. The study concludes that there was an increase of 8.49% in current conductivity between the blank experiment and T91 alloy oxidation potential test. The oxidation process was following the parabolic rate law which manifest that the corrosion is controlled by ionic diffusivity in the oxide layer. The oxide layer formed on the sample has an average thickness of 54.10 μm and this value can be used to calculate the oxidation kinetics of the sample using parabolic rate constant, Kp, resulting with the value of 6.78 × 10−14 m2/s. Springer 2023-05-14 Proceeding Paper PeerReviewed application/pdf en http://irep.iium.edu.my/108861/1/108861_Effect%20of%20oxygen%20gas%20exposure.pdf application/pdf en http://irep.iium.edu.my/108861/2/108861_Effect%20of%20oxygen%20gas%20exposure_SCOPUS.pdf Rosdin, Muhammad Rafiq Haikal and Ismail, Ahmad Abdul Mun'im and Abdul Hamid, Abd. Malek and Purwanto, Hadi and Illias, Suhaimi and Syed Abu Bakar, Syed Noh and Ani, Mohd. Hanafi (2023) Effect of oxygen gas exposure on T91 alloy at high temperature oxidation of steam reformer. In: 5th International Conference on Advances in Manufacturing and Materials Engineering (ICAMME2022), 9th - 10th August 2022, Kuala Lumpur, Malaysia. https://link.springer.com/chapter/10.1007/978-981-19-9509-5_65 10.1007/978-981-19-9509-5_65
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
English
topic T Technology (General)
spellingShingle T Technology (General)
Rosdin, Muhammad Rafiq Haikal
Ismail, Ahmad Abdul Mun'im
Abdul Hamid, Abd. Malek
Purwanto, Hadi
Illias, Suhaimi
Syed Abu Bakar, Syed Noh
Ani, Mohd. Hanafi
Effect of oxygen gas exposure on T91 alloy at high temperature oxidation of steam reformer
description Steam-Methane Reforming (SMR) is one of the most economical ways to produce hydrogen from natural gas. Steam reforming industry is hugely relied on using supercritical power plant where the working temperature of the plant must exceed 600 °C. Along with the high operating temperature, the situation promotes the acceleration of high temperature oxidation. This will cause fouling and spalling of oxide scales at the boiler tube. Eventually, fouling will reduce heat transfer between the tube and steam generated, causing a higher temperature is needed to produce steam. Until now, the only approach used by the industry is to manually replace the corroded boiler tube. Other than that, many studies have been conducted on the behavior of boiler tubes at temperatures exceeding 800 °C. However, to our knowl- edge, no study has been done to investigate the air electrolyte substrate interfacial electrochemical reaction at high temperature. This project was carried out to inves- tigate the corrosion potential of T91 boiler tube at 650 °C for 2 h, 8 h, and 12 h, measure the current density (Icorr) by calculating corrosion potential (Ecorr) value using Tafel Extrapolation and determine the oxidation potential of oxygen gas at 650 °. The oxide layer thickness at exposed temperature was determined to measure the oxidation kinetics. The study concludes that there was an increase of 8.49% in current conductivity between the blank experiment and T91 alloy oxidation potential test. The oxidation process was following the parabolic rate law which manifest that the corrosion is controlled by ionic diffusivity in the oxide layer. The oxide layer formed on the sample has an average thickness of 54.10 μm and this value can be used to calculate the oxidation kinetics of the sample using parabolic rate constant, Kp, resulting with the value of 6.78 × 10−14 m2/s.
format Proceeding Paper
author Rosdin, Muhammad Rafiq Haikal
Ismail, Ahmad Abdul Mun'im
Abdul Hamid, Abd. Malek
Purwanto, Hadi
Illias, Suhaimi
Syed Abu Bakar, Syed Noh
Ani, Mohd. Hanafi
author_facet Rosdin, Muhammad Rafiq Haikal
Ismail, Ahmad Abdul Mun'im
Abdul Hamid, Abd. Malek
Purwanto, Hadi
Illias, Suhaimi
Syed Abu Bakar, Syed Noh
Ani, Mohd. Hanafi
author_sort Rosdin, Muhammad Rafiq Haikal
title Effect of oxygen gas exposure on T91 alloy at high temperature oxidation of steam reformer
title_short Effect of oxygen gas exposure on T91 alloy at high temperature oxidation of steam reformer
title_full Effect of oxygen gas exposure on T91 alloy at high temperature oxidation of steam reformer
title_fullStr Effect of oxygen gas exposure on T91 alloy at high temperature oxidation of steam reformer
title_full_unstemmed Effect of oxygen gas exposure on T91 alloy at high temperature oxidation of steam reformer
title_sort effect of oxygen gas exposure on t91 alloy at high temperature oxidation of steam reformer
publisher Springer
publishDate 2023
url http://irep.iium.edu.my/108861/1/108861_Effect%20of%20oxygen%20gas%20exposure.pdf
http://irep.iium.edu.my/108861/2/108861_Effect%20of%20oxygen%20gas%20exposure_SCOPUS.pdf
http://irep.iium.edu.my/108861/
https://link.springer.com/chapter/10.1007/978-981-19-9509-5_65
_version_ 1787131907697278976
score 13.211869

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