[Q&A Question 146] 2018.05.26
Thread Content
【Q&A Question 146】May 26, 2018: Briefly describe the characteristics of hydrogen mixing before the furnace and hydrogen mixing after the furnace Characteristics of pre-furnace hydrogen mixing and post-furnace hydrogen mixing: ① Pre-furnace hydrogen mixing requires high-quality furnace tubes, as well as thicker tubes; the high load on the furnace increases the investment costs for the equipment. Hydrogen mixing in front of the furnace has advantages such as uniform mixing of oil and gas, stable reaction, and easy control of the reaction temperature. ②Hydrogen mixing behind the furnace can reduce equipment investment costs, but the mixture of oil and gas is uneven, making it difficult to maintain a stable reaction temperature; moreover, the operation is slightly more complex. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) Correct: 3 wealth, Incorrect: 1 wealth ； Mass posting of posts – rated based on the lowest score ； Replies that are unrelated to the answer are considered spam and will be deleted immediately. For management purposes, if you need to view content from a few days ago, please go to https://bbs.hcbbs.com/home.php?mod=space&uid=3862647&do=thread&view=me&from=space through the summary post below. The APP short-video skills competition has begun! https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1951670
Hydrogen mixing in front of the furnace requires high-quality furnace tubes, thicker tubes, and a high load on the furnace. Investment costs are high, bias flow is likely to occur, and the furnace tubes are prone to coking ； However, it has advantages such as uniform mixing of oil and gas, stable reaction, and easy control of reaction temperature. Post-furnace hydrogen mixing has advantages such as lower investment costs, no flow deviation, and reduced risk of coking in the furnace tubes; however, the mixing of oil and gas is not uniform enough, and it is difficult to control the reaction temperature.
1. Hydrogen mixing in front of the furnace requires high-quality furnace tubes, and these tubes must be thicker as well; the high load on the furnace increases the cost of equipment investment. Mixing hydrogen in front of the furnace offers advantages such as uniform mixing of oil and gas, stable reactions, and easy control of the reaction temperature. 2. Mixing hydrogen after the furnace can reduce equipment investment costs, but the mixture of oil and gas is uneven, making it difficult to maintain a stable reaction temperature; moreover, the operation is slightly more complex.
1. Hydrogen mixing in front of the furnace requires high-quality furnace tubes, and these tubes must be thicker as well; the high load on the furnace increases the cost of equipment investment. Mixing hydrogen in front of the furnace offers advantages such as uniform mixing of oil and gas, stable reactions, and easy control of the reaction temperature. 2. Mixing hydrogen after the furnace can reduce equipment investment costs, but the mixture of oil and gas is uneven, making it difficult to maintain a stable reaction temperature; moreover, the operation is slightly more complex.
1. Hydrogen mixing in front of the furnace requires high-quality furnace tubes, and these tubes must be thicker as well; the high load on the furnace increases the cost of equipment investment. Mixing hydrogen in front of the furnace offers advantages such as uniform mixing of oil and gas, stable reactions, and easy control of the reaction temperature. 2. Mixing hydrogen after the furnace can reduce equipment investment costs, but the mixture of oil and gas is uneven, making it difficult to maintain a stable reaction temperature; moreover, the operation is slightly more complex.
Hydrogen mixing in front of the furnace requires high-quality furnace tubes, thicker tubes, and a high load on the furnace. The investment cost is high, it is prone to flow imbalances, and the furnace tubes tend to coking; however, it has advantages such as uniform mixing of oil and gas, stable reactions, and easy control of reaction temperature. Post-furnace hydrogen mixing has advantages such as lower investment costs, no flow deviation, and reduced risk of coking in the furnace tubes; however, the mixing of oil and gas is not uniform enough, and it is difficult to control the reaction temperature.
Hydrogen mixing in front of the furnace requires high-quality furnace tubes, thicker tubes, and a high load on the furnace. Investment costs are high, bias flow is likely to occur, and the furnace tubes are prone to coking ； However, it has advantages such as uniform mixing of oil and gas, stable reaction, and easy control of reaction temperature. Post-furnace hydrogen mixing has advantages such as lower investment costs, no flow deviation, and reduced risk of coking in the furnace tubes; however, the mixing of oil and gas is not uniform enough, and it is difficult to control the reaction temperature.
Hydrogen mixing in front of the furnace requires high-quality furnace tubes, thicker tubes, and a high load on the furnace. The investment cost is high, it is prone to flow imbalances, and the furnace tubes tend to coking; however, it has advantages such as uniform mixing of oil and gas, stable reactions, and easy control of reaction temperature. Post-furnace hydrogen mixing has advantages such as lower investment costs, no flow deviation, and reduced risk of coking in the furnace tubes; however, the mixing of oil and gas is not uniform enough, and it is difficult to control the reaction temperature.
High requirements are placed on the tube materials used in the hydrogen mixing furnace in front of the furnace; moreover, the furnace tubes need to be thicker. As the load on the furnace increases, this raises the investment costs for the equipment, and it also leads to a slight increase in system pressure. However, the reaction is stable, with a uniform mixture of oil and gas, which is favorable for the hydrogenation reaction. Post-furnace hydrogen mixing can reduce equipment investment and production costs, but it is complex to operate, results in large fluctuations in reaction temperature, and leads to uneven mixing of oil and gas, which is detrimental to the reaction.
Hydrogen mixing equipment in front of the furnace requires high investment but operates smoothly, while hydrogen mixing equipment behind the furnace has lower investment but experiences greater operational fluctuations
1. Hydrogen mixing in front of the furnace requires high-quality furnace tubes, and these tubes must be thicker as well; the high load on the furnace increases the cost of equipment investment. Mixing hydrogen in front of the furnace offers advantages such as uniform mixing of oil and gas, stable reactions, and easy control of the reaction temperature. 2. Mixing hydrogen after the furnace can reduce equipment investment costs, but the mixture of oil and gas is uneven, making it difficult to maintain a stable reaction temperature; moreover, the operation is slightly more complex.