Pour Point Depressants: Enhancing the Flow of Fuels at Low Temperatures What are Pour Point Depressants?Pour point depressants (PPDs) are polymeric additives blended into distillate fuels such as diesel, heating oil, kerosene and jet fuel in order to lower the pour point and prevent wax crystallization at low temperatures. They work by attaching to the wax crystals as they begin to form and inhibiting further crystallization. This allows the wax to remain uniformly...
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