Distilled Resin Oil

Distilled Resin Oil (DRO) is a mixture of (mainly unsaturated) C9 and C10 components rich in indene and vinyltoluenes. It originates from the high temperature cracking of petroleum fractions and is distilled out of pyrolysis gasoline (pygas) during the production of benzene.

Applications
DRO is best used to produce hydrocarbon-based resins such as C9 aromatic-based resins or C5/C9-based resins. These resins typically are used in applications where the color of the resin is not a determining factor such as printing inks, road markings or paints.

The applications for DRO are similar to the Regular or Prime applications. However, because of its low naphthalene content and low content of heavy components, it can also be used in applications where the naphthalene content of the resulting resin is an important factor.

Alternatively, DRO could be used as a blend component for gasoline blending, but considering this application it is important to realize that these products are richer in resin forming components than most refinery blend components. This may require blending with more saturated materials or additional stabilization.

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