Reuse of waste heat from ethylene cracking furnace flue gas
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Hello everyone, how is the waste heat from the flue gas of ethylene cracking furnaces currently being utilized? Thank you.
I have here an inorganic chemical technology that enables the large-scale utilization of waste heat as a by-product. It is safe and pollution-free. The required investment ranges from 1 million to 100 million. With an investment of 20 million, the annual profit can reach 80 million; if there are sufficient waste heat resources available, the profit can even reach 100 million. Those interested may contact me at myben@126.com
Heat energy utilization! It depends on how high the temperature is; moreover, the exhaust temperature cannot be too low, as low temperatures can cause dew point corrosion!
Flue gas can be used to preheat raw materials and boiler feedwater, as well as to generate ultra-high pressure steam. The flue gas temperature of Wison’s furnaces should be reducible to a minimum of 85℃
As low as 85 – will there be no dew point corrosion?
Currently, most ethylene plants use methane-hydrogen produced in-house as fuel gas; it contains virtually no sulfur, so the issue of dew point corrosion is no longer a concern. The flue gas temperature of many furnaces is below 100
The waste heat at 85°C is also a valuable resource that can be fully utilized for my project
First, one must check the exhaust temperature; if it’s too low, its utility value will be significantly affected； Furthermore, it depends on the dew point temperature of the flue gas. The fuel gas used in many systems is primarily recycled exhaust gas (methane hydrogen), but some natural gas is also used as a supplement; therefore, a temperature above 100 degrees Celsius is considered a safe value ； It can be used for preheating steam generators, preheating raw materials, etc. However, the determining factor remains the sulfur content