Hydrate prevention is used to prevent hydrates from forming. Operating conditions must remain out of the hydrate-formation zone Hydrate point must be maintained below the operating conditions of the system Two common methods of hydrate-formation prevention are: Temperature control An indirect heater is used to heat gas to maintain temperatures above that of the hydrate …
Gas hydrates are complex lattice structures composed of water molecules in a crystalline structure: Resembles dirty ice but has voids into which gas molecules will fit Most common compounds , Water, methane, and propane ,Water, methane, and ethane The physical appearance resembles a wet, slushy snow until they are trapped in a restriction and exposed …
Liquid water is removed by gas-liquid and liquid-liquid separation. The capacity of a gas stream to hold water vapor is: A function of the gas composition Affected by the pressure and temperatureof the gas Reduced as the gas stream is compressed or cooled. When a gas has absorbed the limit of its water holding capacity …
After passing through the microfiber filter separator, the gas enters the glycol gas contactor near the bottom of the vessel. The inside of the contactor contains either packing of several trays with weirs that maintain a specific level of glycol so that the gas must bubble through the glycol as the gas flows up. As …
After the liquid (free) water has been removed from the gas stream by separation, 25 to 120 lbs of water per MMSCF of gas will remain, depending on the temperature and pressure of the gas. The warmer the inlet gas and the lower the pressure, the more water vapor the gas stream will contain . …
The achievement of equilibrium on a small surface displays the following pattern: Some passing molecules will condense on the surface (physical as opposed to chemical absorption). After some finite time the molecule may acquire sufficient energy to leave and be replaced by another. After sufficient time, a state of equilibrium will be reached wherein the …