Improve energy efficiency for distillate hydrotreaters retrofit options.

The article reports on the methods of energy conservation on distillate hydrotreaters used in the refineries. It states distillate hydrotreaters consumes large part of the energy in the refineries. Hence methods to conserve energy are suggested in the article. It states retrofitting distillate hydrotreaters is one of the options to improve energy efficiency. Installation of a hot separator, usage of alternative heat exchange techniques like twisted tubes, are also ways to conserve energy.