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Posted by tmiller on March 10, 2006 at 21:46:38:
In Reply to: Firing methane (landfill) gas in firetube boiler problems posted by KLK on February 24, 2006 at 15:07:34:
Was the burner designed to burn this fuel? Is this continuous firing or intermittent? From the conditions you describe I would say the exit temperature of the combustion gasses is an issue. If the unit is down, how long before the buildup you described begins to turn green? If you see this it is acidic. Not an expert on landfill gas firing, just proposing some questions for you to consider. TM
: I have a customer that is firing two (2) 800 HP dryback boilers off of landfill gas (methane). Since then, he has experienced a lot of sticky buildup in the tubes of his boilers. In addition, the kaowool insulation in the top half or his rear door is disintegrating (has almost vanished/completely been eaten up). In addition, the refractroy is starting to show major wear and cracking. Can someone give me some insight on situations you have seen? and any possible solutions?
: Thanks
: KLK