What Is Chloral Hydrate?
Hydrates refer to compounds that contain water and are quite broad in scope. Wherein water can be connected to other parts with coordination bonds, such as hydrated metal ions, or can be combined with covalent bonds, such as trichloroacetaldehyde hydrate. It can also refer to white crystals formed by certain components and moisture in natural gas under certain temperature and pressure conditions. The appearance is similar to dense ice and snow with a density of 0.88 ~ 0.90 g / cm3. Studies have shown that hydrate is a cage-shaped crystal inclusion, water molecules are bonded by hydrogen bonds to form cage-shaped crystals, and gas molecules are enclosed in the crystal lattice.
- [shu hé wù]
- Hydrates refer to compounds that contain water and are quite broad in scope. Where water can be connected to other parts with coordination keys, such as
- (1) the existence of liquid water
- The presence of liquid water is a necessary condition for the formation of hydrates.
- ( 2) Low temperature
- Low temperature is an important condition for hydrate formation. The temperature of natural gas must be equal to or lower than that in natural gas.
- The formation of hydrates blocks the wellbore or gas production pipeline and affects the normal production of gas wells. Common methods for controlling hydrates are:
Hydrate dry gas (dehydration)
- Moisture content in natural gas is an inherent factor in the formation of hydrates, so removing moisture from natural gas is the fundamental way to prevent hydrate formation.
- Increase air temperature (heating method)
- The essence of increasing the temperature to prevent the formation of hydrates is to increase the temperature of the air stream above the temperature of the formation of hydrates. The heating methods include steam heating method and water jacket furnace heating method.
Hydrate plus antifreeze
- Add various natural gas hydrate inhibitors to natural gas to reduce the temperature of hydrate formation, reduce the dew point of natural gas, and prevent the formation of hydrates.