A new apparatus that consists of two 9 L fixed-bed hydrate
crystallizers
that can operate at the scale of several kilograms per day was designed
and built to demonstrate the use of the hydrate process for CO2 capture and in other gas separations of industrial interest.
The apparatus is described together with the concept of a dual-bed
cyclic gas hydrate process (DB-CGHP). The process was used for the
precombustion capture from a CO2/H2 gas mixture.
The process operates on a semibatch or batch manner, and if one employs
a battery of such hydrate reactors and coordinates the formation/decomposition
cycles, a pseudocontinuous operation emerges.