Production of Pipeline Quality Natural Gas with the Molecular Gate® CO2 Removal Process

Abstract

Abstract In May of 2002, the first Molecular Gate®–Carbon Dioxide Removal system for the removal of carbon dioxide and water was started-up at the Tidelands Oil Production Company operated facility in Long Beach, California. The feed source for the unit is hydrocarbon rich, water-saturated, associated gas from water flood enhanced oil recovery operations. The feed CO2 concentration varies widely and is typically over 30% while the unit reduces the carbon dioxide level to less than 2%. The unit removes the carbon dioxide, heavy hydrocarbons and water producing pipeline specification gas for sale to the local natural gas utility company.