Quote:
Originally Posted by cmccuist
Hi Red Beard!
What made you decide on the Caterpillars? I'm doing a project right now for the University of West Indies in Kingston. We are using the GE Jenbacher line and burning natural gas, but they make biogas units as well.
I'm actually in Budapest this week for the testing. GE has a huge facility here. Really impressive place. These Hungarians can build some generating units!
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Existing plant that is about 10 years old. One thing CAT has going for it is a lot of experience in biogas and they have facilities all over the place. One other plus, the CAT units can deal with Siloxanes better than most other recip engines.
Siloxanes are silicon compounds which are found in lots of home products, including silicone caulk and hair care products. They are generally inert. But when burned, they turn into silicon-di-oxide, or Silica. This can plate out on the piston and head, along with everything downstream in the exhaust (Turbo). It is like a ceramic.
At present, no treatment. We're shortly installing a gas chiller which will take out a lot of the siloxanes through condensation. We also plan a water injection system which will prevent deposits.