The oil and gas industry has utilized various deaeration technologies for many years to remove dissolved gases, particularly oxygen, from injection water. In many hydrocarbon recovery and water processes, degassing is necessary in order to minimize environmental impact, improve operating efficiency, avoid process issues and help protect system components.
Common methods of deoxygenation include installing a vacuum tower and/ or chemical injection. (For example, dosing water with sodium bisulfite). However, vacuum towers are bulky and use an enormous footprint. They cannot be easily expanded to meet future demand and, in many cases, are not operated at optimal efficiency because planned flow capacity may change after tower construction begins or even after installation. Additionally, vacuum towers can also have long lead times, so ordering must be done well in advance.