There has been an increasing concern regarding the impact of greenhouse gases on the global climate, which has spurred a widespread search for alternative energy sources and limiting carbon dioxide emissions. A strong Carbon Dioxide (CO2 ) purifier can be useful for sensor manufacturers, car manufacturers, research laboratories, and refineries to mitigate the emission of harmful pollutants.
The low nitrogen count of the flue gas from oxy-fuel combustion makes it much easier to separate the CO2 for sequestration. However, certain reservoirs which store the CO2 cannot tolerate specific contaminants at concentrations above a threshold amount. This method creates a stronger separation process that addresses some of the usual complications such as corrosion, hydrate formation, aqueous phase separation and phase behavior within the reservoir.
This invention proposes a CO2 purification process consisting of three major sections: a NOx and SOx removal unit, a non-condensable gas removal unit, and a CO2 pressurization unit. The method described comprises of feeding a fluid inlet stream comprising of carbon dioxide and/or a contaminant to a distillation column, and removing at least a portion of the contaminants within the absoption column to create a fluid outlet stream enriched in carbon dioxide and lean in the other contaminants.The purified CO2 stream produced can then be sequestered or used as part of an enhanced oil recovery process.
- Achieves purity requirements for oxy-combustion systems over a wide range of constraints
- Reduces the amount of potential damages