【Cracking Question Bank】What is the purpose of the waste heat boiler in a cracking furnace?
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This post was last edited by Guan Gongyu on 2015-10-19 at 15:06. What is the purpose of the waste heat boiler in a pyrolysis furnace? Correct +10. Other moderators, please assist with scoring. The waste heat boiler of the pyrolysis furnace can, on the one hand, quickly cool the pyrolysis gas at the exit of the radiation section in order to prevent further reactions of this gas, and on the other hand, it can recover high-quality heat to generate ultra-high pressure steam.
The waste heat boiler of the pyrolysis furnace can, on the one hand, rapidly cool the pyrolysis gas at the exit of the radiation section to prevent further reactions of the pyrolysis gas, and on the other hand, recover high-quality heat to generate ultra-high pressure steam.
Steam is produced by the heat energy released through the rapid cooling of high-temperature pyrolysis gases. Waste heat boilers are used to rapidly cool the high-temperature pyrolysis gas, stopping the continuation of pyrolysis and increasing yield; at the same time, steam is generated to recover thermal energy.
Remove the reaction heat; steam is produced as a byproduct.
On the other hand, the secondary reaction of the pyrolysis gas enables the recovery of high-quality heat to generate ultra-high pressure steam.
On the one hand, terminate the cleavage reaction. On the other hand, recover heat.
A heat exchanger that uses the high-temperature stream of pyrolysis gas coming from the tubular furnace in the ethylene plant as a heat source to produce steam; it serves both as a cooler for the high-temperature stream in the process flow and as a device that generates steam by utilizing waste heat. This not only prevents a decrease in ethylene yield due to excessive cracking, but also enables the production of high-pressure steam at over 10 MPa, which plays an important role in improving the thermal efficiency and economic benefits of the entire plant.
Delay the cracking time and increase the steam yield ratio
Delay the cracking time and increase the steam yield ratio
The function of the waste heat boiler in the pyrolysis furnace is to rapidly cool the pyrolysis gas, reduce secondary reactions, and recover high-quality thermal energy
The waste heat boiler of the pyrolysis furnace can, on the one hand, rapidly cool the pyrolysis gas at the exit of the radiation section to prevent further reactions of the pyrolysis gas, and on the other hand, recover high-quality heat to generate ultra-high pressure steam.