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Catalyst Hydrothermal Synthesis

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#1 stelu85


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Posted 13 September 2018 - 04:27 AM

Hi guys,


hope everything is ok over there. I have a question relevant to hydrothermal synthesis.


Our reactor, at 35 barg, is producing a white liquor made of an amorfing structure between H2O, Zeolite, TiO2, SiO2. this product is basically solid and we have difficulties in discharging it from the two bottom ON-OFF ball valves which are getting stuck several times.


we are looking for a different kind of valves which fit for this purpose.


At the beginning I've proposed 3-way piston valves which are mostly used on slurry reactors technology but probably a different solution is already applied and proved.


Can you support me in any manner? Couple of picture for you are attached.



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#2 thorium90


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Posted 13 September 2018 - 04:35 AM

Might (slide) gate valve or pinch valve be possible?

If the pressure wasn't so high, I might have suggested rotary valve.


High Pressure Pinch valve


Edited by thorium90, 13 September 2018 - 04:41 AM.

#3 stelu85


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Posted 13 September 2018 - 03:17 PM

Good idea Thorium,


It depends on the material resistance. 


Kevlar and mechanic operated  probably  is a good solution.


Anyhow, I need more ideas to assess.



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