Energy recovery in manufacture of sulfuric acid
US9278859B2 · kind B2 · utility
2Cited by
15References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 22, 2014 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | Oct 22, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0402
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention relates to the recovery of energy in the manufacture of sulfuric acid, and more particularly to enhanced recovery of energy from the absorption of wet SO3 in sulfuric acid. The invention is further directed to control of mist formation during SO3 absorption, and of the sulfuric acid mist content of the gas stream leaving the SO3 absorption step in a process wherein SO3 absorption energy is recovered from absorption acid in useful form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.