Gas liquefying process for mixed refrigerant and mixed refrigerant
A technology of mixing refrigerants and refrigerants, applied in refrigeration and liquefaction, gas/liquid distribution and storage, liquefaction, etc., can solve the problems of long start-up time, many units, abnormal operation, etc., to achieve flexible load adjustment, safe and reliable operation , The effect of load adjustment is convenient
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0033] [Example 1] Coalbed methane liquefaction
[0034] Purified coalbed methane components after deacidification and dehydration (mole percentage): nitrogen 2.0843% methane 97.901% ethane 0.0053% propane 0.0001% other 0.0093%, pressure: 4.46 MPa, temperature: 38°C.
[0035] CBM liquefaction process:
[0036] The purified bed gas 11 enters the cold box 100 for pre-cooling, and the coal bed gas 12 that is pre-cooled to -70°C exits the cold box and enters the heavy hydrocarbon separator 1000. The heavy hydrocarbon 14 is discharged from the bottom of the heavy hydrocarbon separator, and its flow is zero, that is, there is no heavy hydrocarbon. Precipitation. The gas phase 13 from the top of the heavy hydrocarbon separator enters the cold box 100 for deep cooling. The supercooled liquid 15 cooled to -150℃ exits the cold box, and the pressure is reduced to 0.4MPa by the throttle valve 800, and the low pressure supercooled liquid 16 enters the LNG Storage unit.
[0037] Refrigerant cycl...
Embodiment 2
[0040] [Example 2] North Sea Natural Gas Liquefaction
[0041] Purified natural gas components (mol %) after deacidification and dehydration: nitrogen 1.5%, methane 77%, ethane 14.5%, propane 3%, n-hexane 4%, pressure: 4.97 MPa, temperature: 38°C.
[0042] CBM liquefaction process:
[0043] The purified bed gas 11 enters the cold box 100 for pre-cooling, the coal bed gas 12 pre-cooled to -35° C. exits the cold box and enters the heavy hydrocarbon separator 1000, and the heavy hydrocarbon 14 is discharged from the bottom of the heavy hydrocarbon separator. The gas phase 13 from the top of the heavy hydrocarbon separator enters the cold box 100 for deep cooling, and the supercooled liquid 15 cooled to -140℃ exits the cold box, throttling down to 0.6MPa through the throttle valve 800, and the cryogenic liquid 16 enters the LNG storage unit .
[0044] Refrigerant cycle process:
[0045] 31℃ low-pressure gaseous mixed refrigerant 1 exits the cold box 100 and enters the refrigeration first...
Embodiment 3
[0047] [Example 3] Jilin Natural Gas Liquefaction
[0048] Purified CBM components after deacidification and dehydration (mol %): nitrogen 3.42%, methane 94.55%, ethane 1.22%, propane 0.09%, butane 0.37%, n-pentane 0.18%, other 0.17%, pressure: 3.97MPa , Temperature: 38℃.
[0049] Weather liquefaction process:
[0050] The purified bed gas 11 enters the cold box 100 for pre-cooling, the coal bed gas 12 pre-cooled to -70°C exits the cold box and enters the heavy hydrocarbon separator 1000, and the heavy hydrocarbon 14 is discharged from the bottom of the heavy hydrocarbon separator. The gas phase 13 from the top of the heavy hydrocarbon separator enters the cold box 100 for deep cooling, and the supercooled liquid 15 cooled to -156°C is discharged from the cold box, and the pressure is reduced to 0.12MPa through the throttle valve 800, and the cryogenic liquid 16 enters the LNG storage unit .
[0051] Refrigerant cycle process:
[0052] 30℃ low-pressure gaseous mixed refrigerant 1 e...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com