Main takeaways:
· CDU is one of the largest energy consumers in refineries
· Direct fuel savings are less than half of the effects from energy efficiency (more at 16:30)
· Even modern refineries have significant room energy efficiency improvements
· To assess the effect, it is important to use a holistic approach and take daily measurements at the level of each individual unit with more detailing, not just at the plant level
· Replacement of shell-and-tube heat exchangers with plate heat exchangers increases energy efficiency
· Improving energy efficiency reduces CO2 emissions and helps achieving Net Zero Carbon Emissions and ESG targets