Selective Hydrogenation of C4 Stream

The selective hydrogenation of butadiene from the C4 stream is essential for its conversion to normal butenes to avoid the increased consumption and regeneration cost of acid in alkylation units. RD technology offered by CR&L for the C4 stream selectively hydrogenates butadiene in the same column that is used for MTBE. The existing MTBE columns can be conveniently modified to suit this purpose. The butadiene content can be brought down to less than 100 ppm [57, 64].

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