Thermally efficient melting for glass making
US5006141A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1990 |
| Grant date | Apr 9, 1991 |
| Priority date | — |
| Expiry date | Jan 30, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention is an integrated process for the production of glass utilizing combustion heat to melt glassmaking materials in a glassmaking furnace. The fuel combusted to produce heat sufficient to melt the glassmaking materials is combusted with oxygen-enriched oxidant to reduce heat losses from the offgas of the glassmaking furnace. The process further reduces heat losses by quenching hot offgas from the glassmaking furnace with a process stream to retain the heat recovered from quench in the glassmaking process with subsequent additional heat recovery by heat exchange of the fuel to the glassmaking furnace, as well as the glassmaking materials, such as batch and cullet. The process includes recovery of a commercially pure carbon dioxide product by separatory means from the cooled, residual offgas from the glassmaking furnace.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.