How to solve stripper efficiency issues (part 2)

Part 1 of this series on stripper efficiency issues provided a brief history of the CO2  stripping process and discussed how the invention of the HP CO2  scrubber back in the 1960s revolutionised urea technology. In part 2 we take a look at how high liquid load can affect stripper efficiency.

A high stripper efficiency is most critical in urea plants with a CO2  high pressure stripper and no medium pressure recirculation section, like in most Stamicarbon stripping plants. In those plants, a lower stripper efficiency has an immediate impact on the pressure in the low pressure recirculation section.