Ethylene is an important monomer, and is made from ethane. The conversion of the reaction is not perfect, so
the ethylene must be separated from the system. Ethane and ethylene are molecularly similar, and so are
difficult to separate. The difficulty of the separation is compounded by the fact that polymer production
requires extremely pure feedstocks.
The examples presented are solely intended to illustrate specific concepts and principles. They may not
reflect an industrial application or real situation.