Divalent ion removal from monoethylene glycol-water streams
US10683219B2 · kind B2 · utility
2Cited by
2References
5Claims
0Family size
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Inventor
Key dates
| Filing date | Apr 7, 2014 |
| Grant date | Jun 16, 2020 |
| Priority date | — |
| Expiry date | Nov 18, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A system and process for the removal of divalent ions from a MEG-water stream are presented. The system includes a chemical treatment tank that receives the MEG-water stream, means for precipitating the calcium, magnesium, and hydroxide ions that are contained in the MEG-water stream, means for discharging the MEG-water stream from the chemical treatment tank, and means for recycling the discharged MEG-water stream back to the chemical treatment tank or routing it to a solids removal system. The means for precipitating the calcium, magnesium, and sulfate ions may be employed simultaneously or sequentially.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.