Synthesis of ordered microporous carbons by chemical vapor deposition
US9604194B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 14, 2014 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Oct 14, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/133
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A methane microporous carbon adsorbent comprising a thermally-treated CVD carbon having a shape in the form of a negative replica of a crystalline zeolite has a BET specific surface area, a micropore volume, a micropore to mesopore volume ratio, a stored methane value and a methane delivered value and a sequential carbon synthesis method for forming the methane microporous carbon adsorbent. Introducing an organic precursor gas for a chemical vapor deposition (CVD) period to a crystalline zeolite that is maintained at a CVD temperature forms the carbon-zeolite composite. Introducing a non-reactive gas for a thermal treatment period to the carbon-zeolite composite maintained at a thermal treatment temperature forms the thermally-treated carbon-zeolite composite. Introducing an aqueous strong mineral acid mixture to the thermally-treated carbon-zeolite composite forms the methane microporous carbon adsorbent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.