Aromatics increase rvp blending value

This article describes a procedure to include the effect of aromatics on rvp blending calculations and presents the pertinent data for these calculations. Refiners that account for this aromatics effect can blend slightly more normal butane into the gasoline pool while meeting the same rvp specification.In refineries, the rvp blending behavior of pressurizing agents is usually based on standard blending values or on linear blending of the rvp index, which typically is rvp to the power of 1.5. The rvp blending values, however, of pressurizing agents increase with the aromatic content of the gasoline.Effect of aromaticsThe results of a comprehensive blending study showed a considerable diff...

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