Systems and apparatus for production of high-carbon biogenic reagents
This invention provides processes and systems for converting biomass into highcarbon biogenic reagents that are suitable for a variety of commercial applications. Some embodiments employ pyrolysis in the presence of an inert gas to generate hot pyrolyzed solids, condensable vapors, and non-condensable gases, followed by separation of vapors and gases, and cooling of the hot pyrolyzed solids in the presence of the inert gas. Additives may be introduced during processing or combined with the reagent, or both. The biogenic reagent may include at least 70 wt %, 80 wt %, 90 wt %, 95 wt %, or more total carbon on a dry basis. The biogenic reagent may have an energy content of at least 12,000 Btu/lb, 13,000 Btu/lb, 14,000 Btu/lb, or 14,500 Btu/lb on a dry basis. The biogenic reagent may be formed into fine powders, or structural objects.
1. A biomass pyrolysis continuous reactor, wherein the biomass pyrolysis continuous reactor comprises:
a material feed system;
a plurality of spatially separated reaction zones, wherein the plurality of spatially separated reaction zones are configured for separately controlling temperature and mixing within each of the plurality of spatially separated reaction zones, wherein one of the plurality of spatially separated reaction zones is configured with a first gas inlet for introducing a substantially inert gas into the biomass pyrolysis continuous reactor, and wherein one of the plurality of spatially separated said reaction zones is configured with a first gas outlet; and
a carbonaceous-solids outlet.
2. The biomass pyrolysis continuous reactor of claim 1 , comprising at least two reaction zones.
3. The biomass pyrolysis continuous reactor of claim 1 , comprising at least three reaction zones.
4. The biomass pyrolysis continuous reactor of claim 3 , comprising at least four reaction zones.
5. The biomass pyrolysis continuous reactor of claim 1 , wherein each of the plurality of spatially separated reaction zones is disposed in communication with separately adjustable indirect heating means, wherein the separately adjustable indirect heating means is independently selected from the group consisting of electrical heat transfer, steam heat transfer, hot-oil heat transfer, waste-heat transfer, and combinations thereof.
6. The biomass pyrolysis continuous reactor of claim 1 , wherein the biomass pyrolysis continuous reactor is configured for separately adjusting gas-phase composition and gas-phase residence time of at least two reaction zones.
7. The biomass pyrolysis continuous reactor of claim 6 , wherein the biomass pyrolysis continuous reactor is configured for separately adjusting gas-phase composition and gas-phase residence time of all reaction zones present in the biomass pyrolysis continuous reactor.
8. The biomass pyrolysis continuous reactor of claim 1 , comprising a second gas inlet and/or a second gas outlet.
9. The biomass pyrolysis continuous reactor of claim 1 , comprising a gas inlet in each reaction zone.
10. The biomass pyrolysis continuous reactor of claim 1 , comprising a gas outlet in each reaction zone.
11. The biomass pyrolysis continuous reactor of claim 1 , wherein the biomass pyrolysis continuous reactor is a countercurrent reactor.
12. The biomass pyrolysis continuous reactor of claim 1 , wherein the material feed system comprises a feed mechanism selected from the group consisting of a screw, an auger, a drop chamber, and a drum feeder.
13. The biomass pyrolysis continuous reactor of claim 1 , wherein the carbonaceous-solids outlet comprises an output mechanism selected from the group consisting of a screw, an auger, a drop chamber, and a drum feeder.
14. The biomass pyrolysis continuous reactor of claim 1 , wherein each of the plurality of spatially separated reaction zones is configured with flights disposed on internal walls, to provide agitation of solids.
15. The biomass pyrolysis continuous reactor of claim 14 , wherein the flights are separately adjustable in each of the plurality of spatially separated said reaction zones.
16. The biomass pyrolysis continuous reactor of claim 1 , wherein the biomass pyrolysis continuous reactor is an axially rotatable reactor.
17. The biomass pyrolysis continuous reactor of claim 1 , comprising a single auger disposed throughout each of the plurality of spatially separated reaction zones.
18. The biomass pyrolysis continuous reactor of claim 1 , wherein the biomass pyrolysis continuous reactor is configured for extracting and reusing gases from the first gas outlet.
19. The biomass pyrolysis continuous reactor of claim 10 , wherein the biomass pyrolysis continuous reactor is configured for extracting and reusing gases from the gas outlet in each zone.