A coker unit is usually at the bottom end of the refinery processes. It is a batch process in which the feed, residual oil feed, is heated to its thermal cracking temperature of 480°C – 510°C and then fed to multiple drums in tandem. The feed is settling in the drums to crack the heavy, long chain hydrocarbon molecules of the residual oil into coker gas oil and petroleum coke. While one drum is filled with feed the other is emptied out from the remaining petroleum coke which is cut out by high pressure water jets.
Due to the hot heavy oil feed which solidifies when it cools down as well as the hot vapor with coke fines this service is very severe for valves. MIAM is designing and manufacturing rugged high quality isolation and drum switch valves. With a proven plug valve design for delayed coker units MIAM presents one of most reliable solutions for delayed coker valves with a very favorable cost of ownership.
We would be very pleased to assist you for the correct application of our valves in your process plant or for further questions or information that you may have.