Gas complex treatment plants and gas treatment plants
Complex gas treatment plants (UKPG) are designed:
- for treatment of high-pressure natural gas by method of low-temperature separation with methanolinjection and reaching the dew point as per water and carbohydrate on conformity with OST 51.40-98 requirements with subsequent delivery into main gaspipeline;
- for obtaining stable carbohydrate condensate in conformity with OST 51.65-80 requirements.
UKPG main process equipment comprises the following items:
- low-temperature separation unit with the block of inlet separator and assemblies for gas consumption measurements;
- condensate stabilization unit, including column equipment, heat exchangers, process heater, pumping equipment, assemblies for gas and condensate consumption measurement;
- methanol regeneration unit.
UKPG auxiliary system comprises the following items:
- flare system;
- unit of air treatment for instruments;
- condensate emergency drain system;
- stock of finished products;
- inert gas storage.
Specification
| Parameter | UKPG-2.0 | UKPG-3.0 |
| Gas capacity, MMSCMD | 1.0 - 2.0 | 2.0 - 3.0 |
| Condensate capacity, t/h | 8.0 - 12.0 | 15.0 - 30.0 |
Gas pressure:
- inlet,MPa
- outlet,MPa |
8.5 - 16.0
5.5 - 7.5 |
8.5 - 16.0
5.5 - 7.5 |
| Condensate outlet pressure, MPa | 0.6* | 0.6* |
Note:* - to be clarified on Customer's demand.
Gas treatment plants (UPG) are designed for extracting a wide fraction of light hydrocarbon from associated oil gas.
In general the following operations are performed at GTP:
- treatment of natural gas,including purification and drying as per moisture;
- gas stripping,i.e.extraction of raw natural gasoline;
- reception,storage,and shipment of liquid products by rail,motor transport or by pipelines.
Depending on volume of oil gas to be refined, integral components contents, specified depth of integral components extraction and other factors, different stripping methods can be applied, causing different scope of process equipment.
On Customer's demand UPG can be additionally equipped with units of unstable gasoline division into casing-head gasoline and individual pure hydrocarbons (propane, isobutane, etc.)
The plant delivery scope includes the following items:
- compressor, column, pumping equipment, heat exchangers, pressure vessels;
- boards with electric equipment;
- automatic control systems.
Specification
| Parameter | UPG-50 | UPG-500 |
| Applied procedure | Heavy hydrocarbons oil absorption | Low temperature separation |
| Gas capacity, mln.m3/year | 50 | 500 |
| Commodity output | natural gas as to OST 51.40-98 liquefied propane-butane stabilized casing-head gasoline |
| Site area, hectare | 0.6 | 1.6 |
Gas complex treatment plants and gas treatment plants can be developed for different gas capacity, with application of different gas treatment procedures.
Multistage layout of process units on the stack, assembled steel sections of which are incorporated in the delivery scope, is used for equipment compact arrangement.
Modular design and maximum factory readiness permit to carry out equipment installation undertime. Every block is the assembly of open or close type, convinient for rail transport. It includes processing
and auxiliary equipment, piping and communications, mounted on rigid load-bearing frame.
The plants are designed for operation in climatic zones with temperature from –60°C up to 45°C.
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