Vapor recovery system for fuel storage tank
US6478849B1 · kind B1 · utility
38Cited by
24References
109Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 11, 2000 |
| Grant date | Nov 12, 2002 |
| Priority date | — |
| Expiry date | Aug 11, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2259/4525
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A vapor recovery system for a fuel storage tank. The system includes a pair of VOC adsorbent canisters that alternately recover VOC vapors from the fuel tank ullage or are regenerated. Regeneration of the VOC adsorbent canisters is provided by exhausting the VOC vapors from the VOC canisters using a vacuum pump and back into the fuel tank ullage. When the operating pressure of the fuel tank ullage is elevated, an auxiliary VOC adsorbent canister is operated in parallel with the pair of canisters in order to recover the increased amount of VOC vapors in the tank ullage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.