| 摘要 |
<p>A process for selectively opening naphthenic rings of naphthenic ring-containing compounds in a feedstream wherein at least a portion of the ring compounds in the feedstream are characterized as containing at least one C5 ring having at least one substituent therefrom and wherein the number of carbon atoms for the C5 ring compound is at least 8. The C5 naphthenic rings are opened without significant dealkylation of any pendant substituents on the ring. The hydrocarbon feedstream, containing such compounds, is contacted with a catalyst comprised of an effective amount of a metal selected from Ir, Ru, and Rh and mixtures thereof on a catalyst support, which catalyst when reacted with a feed comprised of 20 wt.% n-pentylcyclopentane in heptane diluent will result in at least a 25 % yield of C10 paraffins and a selectivity to C10 paraffin products of at least 0.80, which selectivity is defined by %C10 paraffin yield/%C10 ring disappearance.</p> |
