Refrig Methanol (Rectisol)

[bonzoboy]

I understand that RECTISOL is a possibly a trademarked name for a refrigerated methanol gas scrubbing process (licensed by Linde or Lurgi).

But can a refrigerated methanol process be designed without having to get a license from the original designer? Methanol as a solvent (for CO2, etc) has been around a long time; is the process still patented?

 

[UmeshMathur]

I believe the tradename refers to the process technology / design rather than the solvent used.