Sour water units suffer from hydrocarbon and particulate fouling, tower instability and hydrocarbon carryover to the sulfur plant. Refinery sour water streams contain free and emulsified hydrocarbons. These hydrocarbons are difficult to settle out, despite 3-5 day residence time tanks. As a result, refineries are faced with heat exchanger fouling, energy costs caused by inadequate heat [...]
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Optimal operation of amine absorption units requires efficient liquid/liquid or gas/liquid contact. The feed often contains heavy hydrocarbons. If these are not effectively removed, they will be washed into the amine. Much of the hydrocarbons either build up in the regeneration column or recirculate depending on boiling range. There are corrosion products formed due to the [...]
Black powder contamination is endemic in natural gas production and transmission. Persistent particulate contamination of natural gas streams include acid gas induced corrosion of carbon steel piping, formation contamination such as coal-seam dust, as well as molecular sieve and catalyst dust. If the contaminants are not removed, they will foul amine systems, foul glycol systems, plug [...]