Daniel J Despen

20140075834, Mar 20, 2014

Apr 13, 2012

14/111226

James A. Mennell - Dellwood MN, US
Daniel J. Despen - Minneapolis MN, US

BIOGENIC REAGENTS LLC - Minneapolis MN

C10L 5/44

44589, 44605

This invention provides processes and systems for converting biomass into high-carbon 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. The structural objects may have a structure and/or strength that derive from the feedstock, heat rate, and additives.

20120285080, Nov 15, 2012

Apr 13, 2012

13/446764

Daniel J. Despen - Minneapolis MN, US
James A. Mennell - Dellwood MN, US
Steve Filips - Mound MN, US

BIOGENIC REAGENTS LLC - Circle Pines MN

C09K 3/00
C22B 4/00
H01B 1/04
C10L 5/44
C10L 8/00

44500, 44589, 44605, 25218232, 25218235, 25218233, 252502, 75 101

This invention provides processes and systems for converting biomass into high-carbon biogenic reagents that are suitable for a variety of commercial applications. High carbon biogenic reagents are also provided.

20220315852, Oct 6, 2022

May 19, 2022

17/749035

- Oakdale MN, US
Daniel J. Despen - Oakdale MN, US

C10L 5/44
C01B 32/312
C01B 32/318
C10B 39/00
C10B 39/02
C10B 41/00
C10B 43/02
C10B 45/00
C10B 47/30
C10B 49/02
C10B 53/02
C10B 57/02
C10B 57/06
C10B 57/10
C10L 5/04
C10L 5/36
C21B 5/00
C21C 5/52
C22B 4/02
H01B 1/04
B01J 21/18

This invention provides processes and systems for converting biomass into high carbon 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.

20210292671, Sep 23, 2021

Dec 9, 2020

17/247362

- Oakdale MN, US
Daniel J. Despen - Oakdale MN, US

C10L 5/44
C21B 5/00
C10B 49/02
C10B 53/02
C10B 57/02
C10L 5/04
C10B 47/30
C10L 5/36
C22B 4/02
H01B 1/04
C10B 39/02
C10B 41/00
C10B 57/06
C10B 57/10
C10B 45/00
B01J 21/18
C10B 39/00
C10B 43/02
C21C 5/52
C01B 32/318
C01B 32/312

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.

20210220801, Jul 22, 2021

Jun 13, 2019

17/250179

- Oakdale MN, US
Daniel J. Despen - Oakdale MN, US
Dustin Slack - Oakdale MN, US

B01J 20/20
B01J 20/10
B01J 20/28
B01J 20/30

In various embodiments, the present disclosure provides biogenic porous carbon silicon dioxide compositions and methods of production and uses thereof.

20210214632, Jul 15, 2021

Mar 18, 2021

17/205605

- Oakdale MN, US
Daniel J. Despen - Oakdale MN, US

C10L 5/44
C21B 5/00
C10B 49/02
C10B 53/02
C10B 57/02
C10L 5/04
C10B 47/30
C10L 5/36
C22B 4/02
H01B 1/04
C10B 39/02
C10B 41/00
C10B 57/06
C10B 57/10
C10B 45/00
B01J 21/18
C10B 39/00
C10B 43/02
C21C 5/52
C01B 32/318
C01B 32/312

This invention provides processes and systems for converting biomass into high carbon 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. The structural objects may have a structure and/or strength that derive from the feedstock, heat rate, and additives.

20210016244, Jan 21, 2021

Oct 1, 2020

17/060293

- Oakdale MN, US
Daniel J. Despen - Oakdale MN, US
David Reamer - Oakdale MN, US

B01J 20/20
C01B 32/39
C01B 32/336
B01J 20/30
C01B 32/50
C01B 32/324

The present disclosure provides biorefining systems for co-producing activated carbon along with primary products. A host plant converts a feedstock comprising biomass into primary products and carbon-containing co-products; a modular reactor system pyrolyzes and activates the co-products, to generate activated carbon and pyrolysis off-gas; and an oxidation unit oxidizes the pyrolysis off-gas, generating CO, HO, and energy. The energy is recycled and utilized in the host plant, and the COand HO may be recycled to the reactor system as an activation agent. The host plant may be a saw mill, a pulp and paper plant, a corn wet or dry mill, a sugar production facility, or a food or beverage plant, for example. In some embodiments, the activated carbon is utilized at the host plant to purify one or more primary products, to purify water, to treat a liquid waste stream, and/or to treat a vapor waste stream.

20210009427, Jan 14, 2021

Jul 7, 2020

16/922556

- Oakdale MN, US
Daniel J. Despen - Minneapolis MN, US

C01B 32/39

Biogenic activated carbon compositions disclosed herein comprise at least 55 wt % carbon, some of which may be present as graphene, and have high surface areas, such as Iodine Numbers of greater than 2000. Some embodiments provide biogenic activated carbon that is responsive to a magnetic field. A continuous process for producing biogenic activated carbon comprises countercurrently contacting, by mechanical means, a feedstock with a vapor stream comprising an activation agent including water and/or carbon dioxide; removing vapor from the reaction zone; recycling at least some of the separated vapor stream, or a thermally treated form thereof, to an inlet of the reaction zone(s) and/or to the feedstock; and recovering solids from the reaction zone(s) as biogenic activated carbon. Methods of using the biogenic activated carbon are disclosed.