【Q&A Question 042】2018.02.11
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【Q&A Question 042】February 11, 2018: What is secondary combustion? What is the impact on the converter? How should it be avoided? The so-called secondary combustion refers to the phenomenon where the fuel gas does not burn completely in front of the burner, and then starts burning again in areas with sufficient oxygen as it moves along with the flue gases. It makes it difficult to control the temperature of the converter, and there is a risk of deflagration occurring somewhere. Secondary combustion is caused by a low total amount of primary and secondary air supplied to the burner; it can be avoided by increasing the air supply to the burner. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Due to the limitations on the number of posts in the “One Question per Day” section, “One Image per Day” has been moved to the registered devices section; you can access it through the directory I posted. For management purposes, if you need to access content from a few days ago, please go to the summary post below to enter the “My Registration Season” event – (Note: This event is currently underway in the Chemical Engineering section) https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=18978. Summary post of daily questions for the 2018 Chemical Engineering Technology Training section: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1888971. Summary post of daily images for the 2018 Registered Equipment section: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1888970. Summary post of Q&A questions for the 2018 Hydrogen Production and Hydrogenation Technology section: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1888968. Summary post of daily questions for the 2018 LNG Technology Discussion section: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1888973. Summary post of Q&A questions for 2017 (updates have started): https://bbs.hcbbs.com/thread-1657793-1-1.html. Summary post of daily questions for 2017 (updates have started): https://bbs.hcbbs.com/thread-1657794-1-1.html. Summary post of daily images for 2017: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1875160. List of daily questions for the 2017 LNG section: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1804162. Summary post of Q&A questions for 2016 (updates completed): https://bbs.hcbbs.com/thread-1597792-1-1.html
The so-called “secondary combustion” refers to the phenomenon where the fuel gas does not burn completely in front of the burner, and then starts burning again in areas with sufficient oxygen as it moves along with the flue gases. It makes it difficult to control the temperature of the converter, and there is a risk of deflagration occurring somewhere. Is secondary combustion caused by a low total amount of primary and secondary air supplied to the burner? Secondary combustion can be avoided by increasing the air supply to the burner.
Secondary combustion occurs when carbon monoxide, produced by incomplete combustion within the furnace, burns again in the convection section, resulting in extremely high temperatures there; in severe cases, this can even damage the furnace tubes in the convection section. The common cause of secondary combustion is an excessive load on the heating furnace; measures should be taken to reduce the furnace load ； Tube leakage can also lead to secondary combustion; this is a case of an accident, so it will not be discussed here.
The so-called secondary combustion refers to the phenomenon where the fuel gas does not burn completely in front of the burner, and then starts burning again in areas with sufficient oxygen as it moves along with the flue gases. It makes it difficult to control the temperature of the converter, and there is a risk of deflagration occurring somewhere. Secondary combustion is caused by a low total amount of primary and secondary air supplied to the burner; it can be avoided by increasing the air supply to the burner.
Combustion in which the intermediate products of a single combustion reaction react again with the surrounding air to form stable final products is known as secondary combustion
This post was last edited by “The Moon is Round in My Hometown” on February 11, 2018, at 10:14. The so-called secondary combustion refers to the situation where fuel gas fails to burn completely in front of the burner; it then enters areas with sufficient oxygen and continues to burn there. Increase the air supply to prevent secondary combustion.
The so-called “secondary combustion” refers to the phenomenon where the fuel gas does not burn completely in front of the burner, and then continues to burn in areas with sufficient oxygen as it moves along with the flue gases. It makes it difficult to control the temperature of the converter, and there is a risk of deflagration occurring somewhere. Secondary combustion is caused by a low total amount of primary and secondary air supplied to the burner; it can be avoided by increasing the air supply to the burner.
Secondary combustion refers to the phenomenon where the fuel gas does not burn completely in front of the burner, and then continues to burn in areas with sufficient oxygen as it moves along with the flue gases. It makes it difficult to control the temperature of the converter, and there is a risk of deflagration occurring somewhere. Secondary combustion is caused by a low total amount of primary and secondary air supplied to the burner; it can be avoided by increasing the air supply to the burner.
The so-called secondary combustion refers to the phenomenon where the fuel gas does not burn completely in front of the burner, and then starts burning again in areas with sufficient oxygen as it moves along with the flue gases. It makes it difficult to control the temperature of the converter, and there is a risk of deflagration occurring somewhere. Secondary combustion is caused by a low total amount of primary and secondary air supplied to the burner; it can be avoided by increasing the air supply to the burner.
The so-called secondary combustion refers to the phenomenon where the fuel gas does not burn completely in front of the burner, and then starts burning again in areas with sufficient oxygen as it moves along with the flue gases. It makes it difficult to control the temperature of the converter, and there is a risk of deflagration occurring somewhere. Secondary combustion is caused by a low total amount of primary and secondary air supplied to the burner; it can be avoided by increasing the air supply to the burner.
Answer: The so-called secondary combustion refers to the phenomenon where the fuel gas does not burn completely in front of the burner, and then starts burning again in areas with sufficient oxygen as it moves along with the flue gases. It makes it difficult to control the temperature of the converter, and there is a risk of deflagration occurring somewhere. Secondary combustion is caused by a low total amount of primary and secondary air supplied to the burner; it can be avoided by increasing the air supply to the burner.