Did you know?
The Atlas Copco Gas and Process high pressure BOG compressor is the first integrally geared machine that combines both cryogenic and warm stages on a single gearbox and skid, combining the compression power of two machines.
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Experience over 98% reliability and availability with six stages of compression mounted on a single gearbox and skid. Atlas Copco Gas and Process' longstanding experience in integrally-geared technology can now offer lower CAPEX and OPEX costs in high pressure BOG applications.
The Atlas Copco Gas and Process high pressure BOG compressor is the first integrally geared machine that combines both cryogenic and warm stages on a single gearbox and skid, combining the compression power of two machines.
As the industry’s most efficient and compact gear design, integral gear technology delivers multiple-speed capability that allows each compression stage to run at the optimum speed, giving the best efficiency possible.
Utilizing dry gas seals on each stage - A technology pioneered by Atlas Copco Gas and Process - enables the BOG compressor to achieve over 98% reliability while reducing the amount of methane emitted into the environment.
By mounting all six stages on a single bull gear, the BOG compressor offers lower CAPEX and OPEX costs versus conventional BOG handling technologies.
Atlas Copco Gas and Process has over 50 years of experience designing integrally-geared compressors (IGC) for the LNG market. Using our experience in low pressure BOG handling and fuel gas boosting, we were able to apply IGC technology to high pressure BOG handling.
Compared to traditional high pressure BOG technology, the inherent design of an IGC offers significant CAPEX and OPEX savings. CAPEX costs are reduced due to the BOG compressor mounting six process stages – both cryogenic and warm – on a single gearbox and skid. This reduces size and the need for multiple machines to manage your process.
OPEX reductions are the result of the inherent efficiency of the IGC design. Sharing a single bull gear, each stage is custom-engineered to run at the proper speed. This, along with precisely designed impellers maximize efficiency to keep your operating costs manageable.
With more than 8,000 integrally-geared reference units globally, we used our experience in the low pressure BOG and fuel gas boosting applications to adapt dry gas seals (DGS) on each stage of the high pressure BOG unit. DGS – a technology pioneered by Atlas Copco Gas and Process - offer the lowest seal leakage rates in the industry. This leads to a more efficient process and less methane emitted into the environment.
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Effective inlet flow range |
250 m³/h - 500 000 m³/h 147,25 cfm - 294 288,89 cfm |
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Maximum discharge pressure |
205 bar(a) 2 973,27 psia |
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Maximum suction pressure |
0,98 bar(a) 20,31 psia |
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Power requirement HP |
45 000 HP |
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Seal Types |
labyrinth, carbon ring, dry-gas seal |
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Stages (min./max) |
1 - 8 |
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Suction temperature |
-165 °C - 400 °C 32 °F - 32 °F |
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