Vapor recovery system using turboexpander-driven compressor
US6460350B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2001 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | Jan 31, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/32
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method for recovering gas is described and includes compressing gas with a turboexpander-driven compressor. The compressor may be a high speed cryogenic centrifugal compressor and the gas to be recovered may be generated from a source of liquefied gas, such as during the transfer of liquefied natural gas from a shipping vessel to a storage tank. A system for recovering gas is also provided and includes a turboexpander-driven compressor in communication with a source of gas to be compressed. The system may be provided with a circuit such that at least a portion of the compressed gas, and/or at least a portion of an expanded, reduced-pressure gas exiting the turboexpander, is directed to the source of the gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.