Front End Acetylene Hydrogenation

[Ahmed Mohamed 90]

Hello. I'm junior engineer working in a ethane cracking facility with back end acetylene hydrogenation. Currently, I am requested to prepare a study over the process of front end acetylene hydrogenation. How the hydrogenation is controlled and so, pros and cons compared to backend type.

Anyone can help me with data?

 

[georgeverghese]

In the naphtha cracker plant drawings I have, the C2H2 hydrogenation unit treats the raw combined ethane - ethylene stream from the de ethanizer tops, which I presume is what you call back end hydrogenation ?

Where would the front end unit be located - upstream of primary or upstream of secondary de methanizer ?