Processes for bioconverting syngas to oxygenated hydrocarbonaceous compounds
US9914945B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 27, 2015 |
| Grant date | Mar 13, 2018 |
| Priority date | — |
| Expiry date | May 12, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E50/10
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Continuous processes for the anaerobic bioconversion of syngas to oxygenated hydrocarbonaceous products, in particular lower alkanols, are disclosed in which nutrients, including micronutrients, and lower carboxylate anion are recovered from at least a portion of an aqueous distillation fraction from a distillation unit operation to recover lower alkanols by using a “tight” ultrafiltration membrane. At least about 75 percent of the water permeates the ultrafiltration membrane. The tight ultrafiltration membrane rejects sufficient components that are adverse to the microorganisms used in the bioconversion that continuous fermentation operations over long durations can be achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.