CO2 gas-soluble silicon nanofluid and preparation method therefor
US12350646B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 26, 2025 |
| Grant date | Jul 8, 2025 |
| Priority date | — |
| Expiry date | Feb 26, 2045 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J20/3293
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed are a CO2 gas-soluble silicon nanofluid and a preparation method therefor. The method includes: taking nano-silica and grafting a silane coupling agent to obtain modified nano-silica; taking methylsiloxane, fluorosilicone, aminosiloxane and an end-capping agent, and performing polymerization under the action of a catalyst to obtain a functionalized network siloxane; and taking the modified nano-silica and the functionalized network siloxane, uniformly mixing, then heating for a Michael addition reaction, and obtaining the gas-soluble silicon nanofluid after the reaction is completed. The gas-soluble silicon nanofluid microscopically forms a network structure with modified nano-silica as a cross-linking point and polysiloxane as a chain; macroscopically, the effect of viscosity increase of the supercritical carbon dioxide is significant, and the dissolving pressure is low. The interfacial tension and the miscibility pressure between the crude oil and CO2 are significantly reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.