I was reading a document about running the ME at low load for a long time. It says you have to keep the exhaust temperature after the cylinders above 250 °C and after the economizer above 180 °C to minimize acidic corrosion.
I’m wondering if the acids are mainly sulfur based or carbon based? If they are sulfur based, does low sulfur fuel allow us to decrease the exhaust temperature further? Are these kinds of temperatures low enough to have an effect on the NOx? Would a high pH filter or exhaust treatment provide some protection when the exhaust temperature starts to drop?