System with multiple adsorbents for ammonia and organic removal
US10343140B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2016 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | Oct 10, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2101/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An adsorbent system includes a passage and first and second adsorbents in the passage. The first adsorbent includes granules of non-impregnated activated carbon and the second adsorbent includes granules of acid- or metal salt-impregnated adsorbent. The granules of acid- or metal salt-impregnated adsorbent have, by weight, at least 20% acid or metal salt content. The granules of acid- or metal salt-impregnated adsorbent have, by weight, at least 35% acid or metal salt content. The granules of non-impregnated activated carbon and the granules of acid- or metal salt-impregnated adsorbent have a size of mesh 4 to mesh 40, and, by total combined weight of the granules of non-impregnated activated carbon and the granules of acid- or metal salt-impregnated adsorbent, the first adsorbent has 55%-75% of the granules of non-impregnated activated carbon and the second adsorbent has 45%-25% of the granules of acid- or metal salt-impregnated adsorbent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.