Is it possible to use hydraulic injection for evaporation of carbon dioxide stripping device?
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Since the aqueous solution full cycle process evaporation injection steam uses 1.3MPa steam, in order to save energy, most of them are changed to hydraulic injection. The carbon dioxide stripping process uses a by-product of 0.3MPa to inject steam. If the energy-saving effect is not obvious if it is changed to water injection, I wonder if it is changed to hydraulic injection. Is it necessary to change it? Let’s discuss! ! ! :handshake This post was last edited by ttlkk on 2008-1-17 22:03 ]
The aqueous solution full cycle process evaporation injection steam uses 1.3MPa steam. Under normal circumstances, it supplies steam to the power plant boiler. It is more energy-saving to change it to hydraulic injection.； The by-product of the carbon dioxide stripping process is 0.3MPa. The process equipment is designed to utilize the by-product steam as much as possible. The circulation heater and one-stage evaporation heater have a large heat exchange area and the ejector is much larger than the evaporation ejector equipment of the aqueous solution full cycle process. The normal full-load production system cannot digest the 0.3MPa by-product of its own by-product. If it is hydraulic injection, wouldn't it be unnecessary! In addition, if 0.3MPa low-pressure steam is delivered to other devices, the pressure level is low, the heat loss is large, and the steam flow is not stable. There are generally no suitable users for delivery, so it is not cost-effective!
Some have been changed to water jets: Shandong Shouguang Alliance Chemical 1830. But the first injector of the second stage is still driven by steam. Switching to water injection can recover a small amount of ammonia and reduce steam consumption. But the power consumption will increase a bit. Comparing the two, switching to water jetting brings benefits of nearly 100,000 yuan a year.
Switching to water spraying not only saves steam but also recovers ammonia. Reducing the ammonia content in the vent is energy-saving and environmentally friendly. 0.3MPA steam can be used as thermal deaeration and gas generation steam for boilers. The 1830 in Shouguang is very good, you can check it out.
The advantages of switching to water jetting outweigh the disadvantages