System and method of preparing pre-treated biorefinery feedstock from raw and recycled waste cellulosic biomass

• US 11,001,776 B2
• Filed: 07/31/2008
• Issued: 05/11/2021
• Est. Priority Date: 07/31/2007
• Status: Active Grant

• Current Assignee: Richard B. Hoffman
• Original Assignee: Richard B. Hoffman
• Inventors: Hoffman, Richard B., Barnes, Frank S.
• Primary Examiner(s): Singh, Prem C
• Assistant Examiner(s): Po, Ming Cheung
• Application Number:
  US12/671,397
• Publication Number:
  US 20100287826A1
• Time in Patent Office: 4,667 Days
• Field of Search: 44605
• CPC Class Codes: C10L 5/363 Pellets or granulates
• CPC Class Codes: C10L 5/44 on vegetable substances
• CPC Class Codes: D21C 3/22 Other features of pulping processes
• CPC Class Codes: D21C 5/00 Other processes for obtaining cellulose, e.g. cooking cotton linters obtaining fibres for spinning D01C; Processes characterised by the choice of cellulose-containing starting materials
• CPC Class Codes: F26B 1/005 by means of disintegrating, e.g. crushing, shredding, milling the materials to be dried F26B17/102, F26B17/103 take precedence
• CPC Class Codes: F26B 17/102 with material recirculation, classifying or disintegrating means F26B17/103 takes precedence
• CPC Class Codes: F26B 3/28 by radiation, e.g. from the sun
• CPC Class Codes: F26B 3/347 Electromagnetic heating, e.g. induction heating or heating using microwave energy
• CPC Class Codes: F26B 5/02 by using ultrasonic vibrations using sonic energy generated by pulse jet combustion F26B23/026
• 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

A method of preparing cellulosic biomass material for subsequent processing first comprises moving at least one stream of biomass material along a flow path. Then, the stream of cellulosic biomass material can be explosively dried and pulverized to disrupt lignocellulosic bonds, and to reduce a moisture content and a particle size of the cellulosic biomass material. Then, the stream of cellulosic biomass material can be electrically degraded the stream of cellulosic biomass material to disrupt lignocellulosic bonds. Additional pre-treatment and post-treatment processes can also be included.

Claims

1. A biorefinery feedstock product formed from cellulose-containing input materials, said product comprising:

(i) two or more different source types of cellulose-containing input materials blended together to define a quantity of blended cellulosic biomass material;

the blended cellulosic biomass material comprising particles thereof having within them, at the cellular and molecular level, explosively degraded and destructed lignocellulosic bonds and other similarly disrupted microstructure;

the blended cellulosic material having;

material particles having a weight-average size in a size range of approximately 625 mesh to 40 mesh, and

a moisture content, as blended, in a range of approximately 5%, on a weight basis, to approximately 25%, on a weight basis; and

each of the respective source types of blended input materials having comprised, before blending, particles thereof having within them, at the cellular and molecular level, explosively degraded and destructed lignocellulosic bonds and other similarly disrupted microstructure; and

(ii) means incorporated within said blended cellulosic biomass material, prior to the employment of said product at a biorefinery, for chemically, enzymatically and/or microbially pretreating, at the cellular and molecular level, the material particles of the blended biomass cellulosic material, and for further disrupting, at the cellular and molecular level, the disrupted lignocellulosic bonds of said particles, said means including one or more pre-treatment solutions, at least one of said pre-treatment solutions being incorporated in a state of encapsulated steeping and operating at ambient temperature and pressure during the lifetime of said blended, cellulosic biomass material so as to maximize a duration of operation of said one or more pre-treatment solutions;

said lifetime and said encapsulated steeping each commencing upstream of the biorefinery where said product is employed as a feedstock and each continuing without interruption until the point at which said blended, cellulosic biomass material is used as a feedstock at said biorefinery; and

said pre-treatment solutions comprising one or more of;

(a) a dilute acid, (b) a dilute alkaline, (c) an organic solvent, (d) an ionic liquid solvent, (e) a microbial agent, (f) an enzyme, and (g) any combination thereof wherein the blended cellulosic biomass material is in the form of compacted, flowable units formed from powder fluffs and wherein each of the compacted, flowable units is coated and the state of encapsulated steeping continues within each coated, compacted, flowable units.

2. The product of claim 1 wherein:

the particles thereof have disrupted lignocellulosic bonds characteristic of bonds disrupted, before the blending of said different source types of input materials, by one of;

(a) explosive drying and pulverizing of an input material;

(b) electrical degrading of an input material; and

(c) a combination of (a) and (b).

3. The product of claim 2 wherein said explosive drying and pulverizing has comprised one of passing said input material through:

a high-speed, rotating, flail-processing unit having a tip speed greater than 300 MPH; and

a high speed air-flow processing unit.

4. The product of claim 1 wherein the pre-treatment solutions comprise the dilute acid.

5. The product of claim 1 wherein the pre-treatment solutions comprise the dilute alkaline.

6. The product of claim 1 wherein the pre-treatment solutions comprise the organic solvent.

7. The product of claim 1 wherein the pre-treatment solutions comprise the ionic liquid solvent.

8. The product of claim 1 wherein the pre-treatment solutions comprise the microbial agent.

9. The product of claim 1 wherein the pre-treatment solutions comprise the enzyme.

10. The product of claim 1, wherein the two or more different source types of cellulose-containing input materials are blended in accordance with a measurable characteristic such that the blended cellulosic material is uniform with respect to the measurable characteristic, wherein the measurable characteristic comprises at least one of a moisture content, a cellulose content, a hemicellulose content, a lignin content, a silica content, a sugar content, a specific gravity, an electrical conductivity, and any combination thereof.

11. The product of claim 1, wherein one of the source types of cellulose- containing input materials comprises one of recycled paper, recycled cardboard, and a combination of recycled paper and recycled cardboard, and which has first undergone a dry fiberization process.

12. The product of claim 1, wherein each of the two or more different source types of cellulose-containing input materials comprises at least one of raw cellulose materials and recycled cellulose materials.

13. The product of claim 1, wherein said one or more pre-treatment solutions is a solution employed in the subsequent biorefining of said product.

14. A biorefinery feedstock product formed from cellulose-containing input materials, said product comprising:

(i) two or more different source types of cellulose-containing input materials blended together to define a quantity of blended cellulosic biomass material;

the blended cellulosic biomass material comprising particles thereof having within them, at the cellular and molecular level, explosively degraded and destructed lignocellulosic bonds and other similarly disrupted microstructure;

the blended cellulosic material having;

material particles in a size range of approximately 625 mesh to 4 mesh, and

a moisture content, as blended, in a range of approximately 5%, on a weight basis, to approximately 25%, on a weight basis; and

each of the respective source types of blended input materials having comprised, before blending, particles thereof having within them, at the cellular and molecular level, explosively degraded and destructed lignocellulosic bonds and other similarly disrupted microstructure; and

(ii) means incorporated within said blended cellulosic biomass material, prior to the employment of said product at a biorefinery, for chemically, enzymatically and/or microbially pretreating, at the cellular and molecular level, the material particles of the blended biomass cellulosic material, and for further disrupting, at the cellular and molecular level, the disrupted lignocellulosic bonds of said particles, said means including one or more pre-treatment solutions, at least one of said pre-treatment solutions being incorporated in a state of encapsulated steeping and operating at ambient temperature and pressure during the lifetime of said blended, cellulosic biomass material so as to maximize a duration of operation of said one or more pre-treatment solutions;

said lifetime and said encapsulated steeping each commencing upstream of the biorefinery where said product is employed as a feedstock and each continuing without interruption until the point at which said blended, cellulosic biomass material is used as a feedstock at said biorefinery; and

said pre-treatment solutions comprising one or more of;

a dilute acid, a dilute alkaline, an organic solvent, an ionic liquid solvent, a microbial agent, an enzyme, and any combination thereof wherein the blended cellulosic biomass material is in the form of compacted, flowable units formed from powder fluffs and wherein each of the compacted, flowable units is coated and the state of encapsulated steeping continues within each coated, compacted, flowable units.

15. A biorefinery feedstock product formed from cellulose-containing input materials, said product comprising:

(i) two or more different source types of cellulose-containing input materials blended together to define a quantity of blended cellulosic biomass material;

the blended cellulosic biomass material comprising particles thereof having within them, at the cellular and molecular level, explosively degraded and destructed lignocellulosic bonds and other similarly disrupted microstructure;

the blended cellulosic material having;

material particles in a size range of approximately 625 mesh to 4 mesh, and

a moisture content, as blended, in a range of approximately 5%, on a weight basis, to approximately 25%, on a weight basis;

each of the respective source types of blended input materials having comprised, before blending, particles thereof having within them, at the cellular and molecular level, explosively degraded and destructed lignocellulosic bonds and other similarly disrupted microstructure; and

increased surface area, pores, and reactive sites for further reactions with one or more of a dilute acid, a dilute alkaline, an organic solvent, an ionic liquid solvent, and a microbial agent, relative to cellulosic biomass which has not been explosively degraded and destructed; and

(ii) means incorporated within said blended cellulosic biomass material, prior to the employment of said product at a biorefinery, for chemically, enzymatically and/or microbially pretreating, at the cellular and molecular level, the material particles of the blended biomass cellulosic material, and for further disrupting, at the cellular and molecular level, the disrupted lignocellulosic bonds of said particles, said means including one or more pre-treatment solutions, at least one of said pre-treatment solutions being incorporated in a state of encapsulated steeping and operating at ambient temperature and pressure during the lifetime of said blended, cellulosic biomass material so as to maximize a duration of operation of said one or more pre-treatment solutions;

said lifetime and said encapsulated steeping each commencing upstream of the biorefinery where said product is employed as a feedstock and each continuing without interruption until the point at which said blended, cellulosic biomass material is used as a feedstock at said biorefinery; and

said pre-treatment solutions comprising one or more of;

(a) a dilute acid, (b) a dilute alkaline, (c) an organic solvent, (d) an ionic liquid solvent, (e) a microbial agent, (f) an enzyme, and (g) any combination thereof wherein the blended cellulosic biomass material is in the form of compacted, flowable units formed from powder fluffs and wherein each of the compacted, flowable units is coated and the state of encapsulated steeping continues within each coated, compacted, flowable units.