Rakesh Gupta Forum Moderator 29 Posts
Re: Identify wax buildup cause22 February 2007 at 1:29pmThe wax appears to be due to incomplete combustion of fuel gas. My suggestion is to have the wax analyzed for chemical composition. This will identify the cause of the wax buildup. Then, depending on the wax composition, the most probable solution appears to be a redesign of the burner tips.
The rate of buildup can only be calculated by looking at the amount of buildup during each cleanout and then forecasting it for the future. Obviously, there will be a maximum limit as to how much wax will accumulate, then there will be numerous other problems.
I have a reformer furnace in the HMU unit. There are 56 burners in there. Every time during the statutory shutdown, the fouled burners need to be cleaned to remove wax. The source of the wax is from the fuel. If I do not take out the wax from the fuel gas, are there any other ways I could solve this, such as changing the burner tips, or installing a knockout drum for the wax? Additionally, can you help calculate the burner fouling coefficient? I want to monitor the burner fouling rate, and if there is no shutdown, when would we know when is the time to shutdown the reformer for the burner cleaning?
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