• Monitor oil content in ammonia streams. Source of ammonia contamination is generally compressor lube oil systems. Compressors often discharge small quantities of lube oil into the synthesis gas and recycle gas and, unless removed, the oil remains in the process often times resulting in off-specification ammonia
• Another problem can exist in the CO2 removal step of an ammonia plant. A circulation liquid (amine or hot carbonate) is used to remove the CO2. The liquid absorbs an acid, the environment in the circulation system is highly corrosive. The corrosion materials will result in plugged trains in the CO2 removal system, reduced CO2 removal efficiency and high losses of amine or carbonate solution.