Device and method of gas hydrate pressure maintaining replacement for in-situ Raman analysis
US11796526B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2019 |
| Grant date | Oct 24, 2023 |
| Priority date | — |
| Expiry date | Sep 17, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/8411
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention discloses a gas hydrate pressure maintaining replacement device and method for in-situ Raman analysis. Comprehensive experiments such as the formation/decomposition/displacement of high-pressure gas hydrates can be realized, and in-situ Raman characterization can be performed. Including reaction kettle system with temperature control unit, pressure control gas supply system, pressure holding system, replacement gas system, sample pre-cooling system, vacuum system and data acquisition and processing system. The device can solve the problem that the Raman peak position of the 512 cage is covered by the Raman peak position of the gas when the high-pressure gas hydrate is characterized in situ in the reaction kettle, at the same time, it solves the problems of sampling difficulties in ex-situ Raman characterization and experimental errors caused by sample transfer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.