We use 4A zeolite molecular sieves in refrigeration application. now we want to regenerate this sieve in simple muffle furnace? what will be regeneration cycle. Please suggest most simple way.
details information of sieve is attached.
see about 4A regeneration
http://www.sigmaaldrich.com/chemistry/chemical-synthesis/learning-center/technical-bulletins/al-1430/molecular-sieves.html
Dear Mr. Mushtaq,
Thank you. But how much time do we need to hold at regeneration temperature and what will be the cooling rate?
there is no indication about that.
Regenerate 4A molsieve at ~250 deg-C. How long you need to regenerate it for depend on the amount of moisture/water adsorbed on it.
In a lab setup you can weight your sieve every 1 to 2 hours. When the reach a constant weight stop and cool it down gradually.
Keep in mind the sieve will lose some of its activity after regeneration.
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