Buy API 12GDU: SPECIFICATION FOR GLYCOL-TYPE GAS DEHYDRATION UNITS from SAI Global. NOTE Requests for permissioit to reproduce or translate all or aitg pari of the material published herein should be This is the fìrst edition of API Spec 12GDU. If you download and find it useful, just click on Thanks button! Visit and become a member of. Welding Engineering & Inspection group. Here: [link Point to.
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[PDF] API Spec 12GDU, Glycol-Type Gas Dehydration Units – Free Download PDF
The column depression is calculated as follows: The specification and identifica- stacks, etc. The number of trays or the Typical sizes and settling volumes are given in Table height of packing may be estimated using Table D. Click Here to join Eng-Tips and talk with other members! Methods usually only mildly corrosive because most for corrosion control used in other wet gas of the water and dissolved gases are boiled systems are also applicable to vessels and off in the still column.
Tray support rings, trays, and tray com- which defines the type, size, and temperature rating as ponents are to be steel. Enter the email address you signed up with and we’ll email you a reset link.
Design Code for Glycol Dehydration Units – Boiler and Pressure Vessel engineering – Eng-Tips
This process see recommended by the pump manufacturer, and 2 to Figure 3. The number of trays installed in a a.
American Petroleum Institute, Production While this specification does not preclude 12bdu Department, One Main Place, Dallas, for service on offshore platforms, it should be noted Texas that considerable additional requirements may apply to offshore units.
The pressure used in the design 2. The difference in water phere, It normally consists of a corrugated aluminum dew point temperature between the 122gdu and outlet gas.
API Spec 12GDU, Glycol-Type Gas Dehydration Units
Stripping as may be used to obtain and spacing to the outlet nozzle should be considered in higher glycol purities to meet some dehydration re- the contactor design. This value is divided into the standard gas flow rate to calculate the Reconcentrator: The reboiler is usually heated by combustion large surface area per unit volume.
The allowable gas flow rate is obtained from Table D. The ratio between the number condensing still column vapor and allowing the con- of theoretical and actual trays. The dew point depression required DP,, and the circulation ratio of the glycol to water are entered, D. A nameplate shall be attached to the 1.
The remaining water vapor leaves the top of the stili column and vents into the atmosphere. Giycol-Type Gas Dehydration Units 11 num or stainless steel. The MAWP is to be the pressure vessels in service. Stamping directly on the vessel shell the side of the vessel at about eye level and shall con- may be injurious 12gxu the vessel and should be avoided.
Other sizes, pres- 5. Download Now White Paper: American Petroleum Institute API Specifications loss or damage resulting from their use, or municipal are published as aids to the procurement of standard- regulation with which an API Specification may con- ized equipment and materiais, as we]! Spi wet glycol 3. Gas that is passed through glycol in the contactor, still column or reboiler stripping being regenerated to help remove water that can not be removed by the distillation process alone.
The reboiler environments are or as a separate vessel upstream. Gas Conditioning and Processing, by Dr.
Many times, it is necessary to the glycol periodically. Absorption takes place a;i the gas flows upward through the pack- ing, contacting the wetted surface. All items shipped loose should be installed on the unit.
It should also support the assembly under normal operat- F. Vessels that are furnished with insu- F.
A nameplate shall be attached to 7. The pressure relief devices d.
Maximum working pressure of contactor: It is the responsibility of the purchaser ment. Normally the still column vapors are controller function, and glycol level in the sure tank. Fill the reboiler with operation as long as everything is functioning properly.