In the frame of energy efficiency studies performed by Axens Horizon, we have frequent feedback on the results of implemented energy efficiency solutions, especially for quick wins and budget-friendly solutions.
Results are as expected within a margin of accuracy that depends on the accuracy of the basic data.
Some solutions we would like to highlight include:
- Low Capex projects for optimisation of complex heat exchange networks by re-routing of streams
- Optimisation of distillation column operating conditions
- Upgrade of heaters fuel/air control system
- Implementation of air preheaters in furnaces
Among the solutions creating a higher return on investment, we got several opportunities to switch two heat exchangers within a heat exchange network (CDU, coker, visbreaker). The two heat exchangers were identified thanks to Pinch analysis developed explicitly for revamping applications.