Regeneration of catalyst for hydrogenation of sugars
US9427733B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Aug 25, 2015 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Aug 25, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for regenerating catalysts that have been deactivated or poisoned during hydrogenation of biomass, sugars and polysaccharides is described, in which polymerized species that have agglomerated to catalyst surfaces can be removed by means of washing the catalyst with hot water at subcritical temperatures. A feature of the process can regenerate the catalysts in situ, which allows the process to be adapted for used in continuous throughput reactor systems. Also described is a continuous hydrogenation process that incorporated the present regeneration process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.