Steam injection into coking heaters
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Dear experts, I would like to know how the proportion of steam injection amounts at the three points for the four branches of a delayed coking heater is determined. For example, if the flow rate in a particular branch increases or decreases, how should the steam injection amounts at those three points be adjusted? Is there any linear relationship between them? Thank you.
It definitely has a connection; it depends on how the values for your heating furnace design are determined. Heating furnaces can vary greatly in terms of their design, so it’s not possible to give you a definite answer. On our side, the three steam injection paths are as follows: large injection at the radial inlet 1. Two bets are small, three bets are small. It is determined based on such principles; at present, the coking issue in the heating furnace is not severe, and the residence time has been reduced.
The design institute will provide a table as a guide
Our heating furnace is a double-sided radiation furnace; Route 1 has a water injection rate of 200–250 kg/h, while Route 2 has a rate of 250–300 kg/h, and this is controlled accordingly