Method for preparing biochar and hydrogen by utilizing anaerobic fermentation byproducts
US11939528B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Oct 16, 2019 |
| Grant date | Mar 26, 2024 |
| Priority date | — |
| Expiry date | Sep 18, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for preparing biochar and hydrogen by utilizing anaerobic fermentation byproducts, the method including: (1) mixing a first straw, seeding sludge and distilled water, and then carrying out anaerobic fermentation to obtain a mixed product after fermentation; (2) performing separation on the mixed product to obtain a second straw and biogas slurry; and (3) carbonizing the second straw to obtain biochar, and collecting gas after a pressurized catalytic reaction on the biogas slurry to obtain hydrogen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.