Ethylene is one of the most important platform chemicals due to its application as monomer in polymer production and as reactant for the production of intermediate products such as dichloroethane, ethylene oxide, ethyl benzene and vinyl acetate. The conventional route for the production of ethylene is the cracking of naphta or recently, the production from bioethanol by dehydration. The cracking conditions mainly favour the formation of olefins as well as the formation of smaller amounts of multi unsaturated compounds. High purity ethylene streams are required especially in polymer production to ensure reproducible product qualities. Multiunsaturated impurities such as acetylene lead to poisoning of Ziegler-Natta catalysts in polymerization reactions. Therefore, the generation of ethylene-rich streams with acetylene concentrations lower than 1 ppm are necessary. Industrially, two main operating methods are commonly used for acetylene removal, tail-end and front-end operation. In the first case, the acetylene removal unit is located after the de-ethanizer.