FIELD: chemistry.
SUBSTANCE: invention relates to a process for liquefying a gas, wherein the gas is cooled in indirect heat exchange with a refrigerant and at least one part of the refrigerant, after heat exchange with the gas, is subjected to compression using a drive (GT1) that generates waste heat, as well as partial or complete liquefaction. After partial or complete liquefaction, the first part of the refrigerant is subjected to heat exchange with the gas, and the second part of the refrigerant is sequentially subjected to increased pressure, heating using the waste heat of the drive (GT1) and vacuum with work, and then again delivered to partial or complete liquefaction. The corresponding unit is also the subject of the invention.
EFFECT: increasing the liquefaction efficiency.
13 cl, 10 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SHIP COMPRISING ENGINE | 2016 |
|
RU2718757C2 |
| SHIP COMPRISING ENGINE | 2016 |
|
RU2719077C2 |
| METHOD AND DEVICE FOR LIQUEFYING HYDROCARBON-RICH STREAM | 2005 |
|
RU2374576C2 |
| SHIP COMPRISING ENGINE | 2016 |
|
RU2717875C2 |
| POWER BALANCING IN LIQUEFICATION SPLIT SYSTEM WITH MIXED REFRIGERANT | 2019 |
|
RU2766164C2 |
| METHOD AND DEVICE FOR COOLING AND LIQUEFACTION OF HYDROCARBON FLOW | 2008 |
|
RU2503900C2 |
| LIQUEFACTION METHOD AND DEVICE | 2009 |
|
RU2505762C2 |
| METHOD FOR LIQUEFYING A FRACTION SATURATED WITH HYDROCARBONS | 2018 |
|
RU2755970C2 |
| LARGE-SCALE LIQUEFACTION OF HYDROGEN THROUGH HIGH-PRESSURE HYDROGEN REFRIGERATION CYCLE COMBINED WITH NEW PRE-COOLING WITH SINGLE MIXED REFRIGERANT | 2016 |
|
RU2718378C1 |
| COOLING SYSTEM AND METHOD WITH MIXED COOLANT WITH SEVERAL PRESSURE LEVELS | 2017 |
|
RU2734933C2 |
