Process for the storage of methane with activated carbon
US5639707A · kind A · utility
18Cited by
9References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1996 |
| Grant date | Jun 17, 1997 |
| Priority date | — |
| Expiry date | Jun 27, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C11/007
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A sulfur-containing active carbon, which has a high storage capacity for methane, is produced from inexpensive aromatic precursors, such as chrysene, coal tar and petroleum oils, tars and pitches, by reacting the aromatic precursor with elemental sulfur, followed by carbonization of the sulfur-containing reaction product in an inert atmosphere at an elevated temperature to produce a sulfur-containing carbon. The carbon is then further activated to develop a surface area of at least 600 m.sup.2 /g by heating in an oxidizing atmosphere at an elevated temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.