Hello everyone,
I am modelling pyrolysis reactor and I need to supply fluidizing gas to the reactor to ensure proper heat transfer to the feedstock. Pyrolysis reaction should occur in the ABSENCE of oxygen. There are different types of fluidizing gases that once can use - N2, Helium, Ar, Fluidizing gases (from the process).
I do not want to use expensive gases like N2, He or Ar as they would impact the economics of my process. Also, my process is not making enough fluidizing gases that I can supply internally.
My query is how or from where do I provide an inexpensive fluidizing gas that does not contain oxygen?
Note: I thought of using a fired heater to combust Methane (natural gas) with air and use a design spec in Aspen Plus to ensure the outlet (exhaust) from the combustor does not contain O2. I did that to use this exhaust gas as fluidizing gas to the pyrolysis reactor. It works but I'm not sure if we can use something like this in real world (industry).
I would appreciate if I can get a suggestion on this.
Thank you
Geetanjali