Method and apparatus for by-product removal in a hydrogen generation system
US6758981B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2001 |
| Grant date | Jul 6, 2004 |
| Priority date | — |
| Expiry date | Dec 27, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/129
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A system and method for removing a by-product from a chemical hydride solution is disclosed. The method includes the steps of: (a) withdrawing the chemical hydride solution at a first temperature from the reactor; (b) cooling the chemical hydride solution to a second temperature below the first temperature, wherein a precipitate is formed from a portion of the by-product; (c) removing the precipitate from the chemical hydride solution; (d) heating the chemical hydride solution to a third temperature above the second temperature, to dissolve the remaining precipitate; and (e) delivering the chemical hydride solution back to the reactor. The system is a circuit which includes: (a) a hydrogen reactor; (b) a pump for withdrawing the chemical hydride solution from the reactor and returning the chemical hydride solution to the reactor; (c) a cooling element for cooling the chemical hydride solution to a second temperature below the first temperature; (d) a separator for removing the precipitate from the chemical hydride solution; and (e) a heater for heating the chemical hydride solution to a third temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.