How to make catalyst pellets

marcio

Dear friends

I've been searching about catalyst pellets and found absolutely nothing about how to make them once all we have is the catalyst. We need something to 'join' the particles together, the pressing of the powder only won't work on most cases.

Any help will be very much appreciated.

Many thanks

Márcio

aroc91

Depends on what you're using. You want a binding agent that won't result in any unwanted reactions.

What is your proposed catalyst and what reactions are you planning on running?

marcio

I've been characterising ZSM-5, ZnO and others plus char. I intend to use them to remove oxygenated compounds from pyrolytic vapours (pyrolysis of biomass).

Thank you for your time.

Márcio

aroc91

I've been able to find a couple patents outlining metal deposition onto ceramic pellets. May be applicable.

http://www.freepatentsonline.com/4051072.html

http://www.google.com/patents/US20110275842

marcio

Thanks a million!

chemisttree

Those methods probably won't help much for zeolites because they may not survive the calcination unchanged. Zeolite pelletization is a different animal than a simple alumina ceramic with active metals deposited on the surface.

Try this to make a pelletized ZSM-5 zeolite and then exchange with a soluble zinc compound.