Give an example of a hybrid system that involves recycle.
Give an example of a hybrid system that involves recycle.
An example of a hybrid system that involves recycle is to be mentioned.
In hybrid systems, multiple steps can take place for separation of the substances.
The advantages of hybrid systems are:-
(a) They decrease the raw materials cost required for separation.
(b) They require less energy.
(c) They completes separations which are difficult to achieve.
(d) They give high purity compounds.
One of the systems where recycle is required with hybrid system is Pressure Swing Adsorption (PSA).
In PSA, nitrogen and methane are separated in single stage with the help of hybrid systems.
Methane is removed first and then by the process of gas-permeation membrane operation, nitrogen is also removed.
Out of all the possible options to separate both these gases, only hybrid system have the capability to separate the two with maximum percent of separation.
97% of methane is obtained in methane rich compound while 92% of nitrogen is obtained in nitrogen rich compound.
The methane recovery for only the membrane process is 57% and it is 86% with adsorption alone, which is very low compared to hybrid system.
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