Balancing power in split mixed refrigerant liquefaction system
US10935312B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2018 |
| Grant date | Mar 2, 2021 |
| Priority date | — |
| Expiry date | Aug 26, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25J2280/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A split mixed refrigerant (“MR”) natural gas liquefication system, where low-pressure (“LP”) and medium pressure (“MP”) MR compressors are driven by a first gas turbine and a propane compressor and a high-pressure (“HP”) MR compressor is driven by a second gas turbine, is disclosed. The split MR liquefication system is configured to adjust the characteristics of the HP MR compressor to require less power when less power is available and more power when more power is available compared to the system's design point. Such adjustments allow for shifting the balance of power between the propane compressor and the HP MR compressor to improve LNG production efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.