Method for preserving quality of nitric oxide
US9945516B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2013 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Sep 28, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF17C2270/01
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method provide high-purity nitric oxide by preserving quality of the nitric oxide by suitably inhibiting the disproportionation reaction of the nitric oxide that is transported in a state of being stored in a high-pressure gas cylinder, and decreasing the amount of nitrous oxide and nitrogen dioxide that are produced during the transportation. When the nitric oxide is transported in a state of being stored in the high-pressure gas cylinder, the nitric oxide is filled into the high-pressure gas cylinder at a gauge pressure between 1.96 MPa to 3.5 MPa to be stored, and is transported in a state in which the exterior surface temperature of the high-pressure gas cylinder is held in a range from −15° C. to 5° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.