The invention pertains to a process of removing dienes from an olefin feedstock. A preferred olefin feedstock is for the production of primary alcohol compositions by skeletal isomerization of the olefins followed by hydroformylation. In this preferred embodiment, the olefin feedstock may be purified before and/or after skeletal isomerization. The olefins in the feedstock preferably have a carbon chain length of about 8 to about 36 carbon atoms, preferably about 10 to about 20 carbon atoms, most preferably about 12 to about 18 carbon atoms.