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SolSep – Technoproject Nanofiltration of viscous liquids

Last updated 954 days ago by Albert Verver


NL GUTS Group of Users of Technology for Separation in the Netherlands


20150414 SolSep BV – Mr. Petrus Cuperus – “Technoproject results: Nanofiltration of viscous liquids”

SRNF is already practice for a number of applications. However leading spiral wound SRNF supplier SolSep has tested the application on viscous liquids in a NL GUTS sponsored Technoproject and presents the results for concentrating PPO in toluene while recovering toluene for NL GUTS member SABIC-IP.

The retention of PPO is 100%, but with a bit of decolourisation from oligomers. Starting with PPO 10% wt the membrane flux decreases by the increasing viscosity or PPO content, but is in control. Critical are maintaining temperature for viscosity, cross flow for turbulence and spacer design. The osmotic pressure has little impact. Concentration up to 30% PPO is possible. NF is an alternative for production increase. www.solsep.com


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