METHOD, DEVICE AND USE OF A DEVICE FOR PRODUCING FUEL FROM MOIST BIOMASS

• US 20110089271A1
• Filed: 04/30/2009
• Published: 04/21/2011
• Est. Priority Date: 05/02/2008
• Status: Active Grant

• Current Assignee: Hans Werner
• Original Assignee: Hans Werner
• Inventors: Werner, Hans
• Granted Patent: US 8,485,457 B2
• Time in Patent Office: Days
• US Class Current: 241/25
• CPC Class Codes: C10L 5/363 Pellets or granulates
• CPC Class Codes: C10L 5/44 on vegetable substances
• CPC Class Codes: C10L 5/48 on industrial residues and waste materials C10L5/403, C10L5/406 take precedence
• CPC Class Codes: Y02E 50/10 Biofuels, e.g. bio-diesel
• CPC Class Codes: Y02E 50/30 Fuel from waste, e.g. synthetic alcohol or diesel

Abstract

The invention relates to a method and to devices, and to the use of the same, for producing fuel pellets from moist biomass of all kinds, wherein the biomass is comminuted, mechanically dehydrated, dried, and then processed into pellets, wherein the comminution is a fine comminution and/or the biomass is washed before or after the comminution—optionally with the water developing during the mechanical dehydration—and is optionally pre-dehydrated and/or heated before the mechanical dehydration step, and is optionally comminuted again after the mechanical dehydration for easier drying.

Claims

1. A method for producing fuel from press-molded biomass, the biomass being moist biomass, the moist biomass being subjected to a drying process prior to the press-molding process, to a mechanical dehydration process for reducing the moisture content prior to the drying process, and to a comminution process prior to the mechanical dehydration process, the biomass being fine-comminuted in the comminution process.

2. The method according to claim 1, wherein the biomass is washed prior to the fine comminution process.

3. The method according to claim 1, wherein the biomass is pre-dehydrated prior to the mechanical dehydration process.

4. The method according to claim 1, wherein the biomass is heated prior to the mechanical dehydration process.

5. The method according to any one of claim 2, wherein the water obtained during the mechanical dehydration process is used as the washing water.

6. The method according to claim 1, wherein the biomass is subjected to a further comminution process for loosening the biomass downstream of the mechanical dehydration process.

7. The method according claim 1, wherein the biomass is fermented in order to produce gas prior to the mechanical dehydration process, and the water that develops during the mechanical dehydration process is supplied for use as, or for further processing into, agricultural fertilizer.

8-14. -14. (canceled)

15. A device for producing fuel from press-molded moist biomass, comprising:

a unit for press-molding the biomass;

a unit for drying the biomass upstream of the unit for press-molding the biomass;

a unit for mechanical dehydration of the biomass so as to reduce the moisture content thereof upstream of the unit for drying the biomass; and

a first unit for comminuting the biomass, which produces fine comminution upstream of the unit for mechanical dehydration of the biomass.

16. The device according to claim 15, further comprising a unit for washing the biomass that is connected upstream of the first unit for fine comminution of the biomass.

17. The device according to claim 15, wherein the device comprises a unit for pre-dehydrating the biomass that is connected upstream of the unit for mechanical dehydration.

18. A device according to claim 15, wherein the device comprises a second unit for comminuting the biomass that is connected upstream of the drying unit and downstream of the unit for mechanical dehydration.