Processes for producing nanocellulose, and nanocellulose compositions produced therefrom

a technology of nanocellulose and composition, which is applied in the field of processes, can solve the problems of not being able to provide cellulose-based materials in an economical process

Inactive Publication Date: 2017-07-27
GRANBIO INTELLECTUAL PROPERTY HOLDINGS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0049](d) gelling the washed refined cellulose solids in a second high-intensity refining unit, thereby generating gelled cellulose solids; and
[0050](e) homogenizing the gelled cellulose solids in a high-shear homogenizer, thereby generating a biomass-derived rheology modifier containing cellulose nanofibrils.

Problems solved by technology

While cellulose-based materials have been generally recognized as possible components in drilling and fracturing fluids, heretofore there has not been an economical process to provide cellulose-based materials, with adjustable properties for different types of fluids and additives.

Method used

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  • Processes for producing nanocellulose, and nanocellulose compositions produced therefrom
  • Processes for producing nanocellulose, and nanocellulose compositions produced therefrom
  • Processes for producing nanocellulose, and nanocellulose compositions produced therefrom

Examples

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Embodiment Construction

[0064]This description will enable one skilled in the art to make and use the invention, and it describes several embodiments, adaptations, variations, alternatives, and uses of the invention. These and other embodiments, features, and advantages of the present invention will become more apparent to those skilled in the art when taken with reference to the following detailed description of the invention in conjunction with any accompanying drawings.

[0065]As used in this specification and the appended claims, the singular forms “a,”“an,” and “the” include plural referents unless the context clearly indicates otherwise. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as is commonly understood by one of ordinary skill in the art to which this invention belongs. All composition numbers and ranges based on percentages are weight percentages, unless indicated otherwise. All ranges of numbers or conditions are meant to encompass any specific v...

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Abstract

Various processes are disclosed for producing nanocellulose materials following steam extraction or hot-water digestion of biomass. Processes are also disclosed for producing nanocellulose materials from a wide variety of starting pulps or pretreated biomass feedstocks. The nanocellulose materials may be used as rheology modifiers in many applications. Water-based and oil-based drilling fluid formulations and additives are provided. Also, water-based and oil-based hydraulic fracturing fluid formulations and additives are provided. In other embodiments, polymer-nanocellulose composites are provided.

Description

PRIORITY DATA[0001]This non-provisional patent application claims priority to U.S. Provisional Patent App. No. 62 / 235,052, filed on Sep. 30, 2015, which is incorporated by reference herein.FIELD OF THE INVENTION[0002]The present invention generally relates to processes for preparing high-viscosity cellulosic compounds from lignocellulosic biomass.BACKGROUND OF THE INVENTION[0003]Biomass refining (or biorefining) has become more prevalent in industry. Cellulose fibers and sugars, hemicellulose sugars, lignin, syngas, and derivatives of these intermediates are being utilized for chemical and fuel production. Indeed, we now are observing the commercialization of integrated biorefineries that are capable of processing incoming biomass much the same as petroleum refineries now process crude oil. Underutilized lignocellulosic biomass feedstocks have the potential to be much cheaper than petroleum, on a carbon basis, as well as much better from an environmental life-cycle standpoint.[0004]...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C08B15/08D21C3/00D21C5/00D21C3/06D21C11/00C13K1/02C09K8/68C09K8/64C09K8/10C09K8/34C08B37/00C07G1/00D21B1/06D21C9/10
CPCC08B15/08C13K1/02D21C3/006D21C5/005D21C3/003D21C3/06D21C11/0007D21C9/10C09K8/68C09K8/64C09K8/10C09K8/34C08B37/0057C07G1/00D21B1/061D21C1/02D21C9/007D21H11/18C08H8/00C12P19/02C12P19/14C12P7/10Y02E50/10
Inventor NELSON, KIMBERLYRETSINA, THEODORA
Owner GRANBIO INTELLECTUAL PROPERTY HOLDINGS LLC
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