Processes for catalytic conversion of lignin to liquid bio-fuels

A biofuel and lignin technology, applied in the field of product conversion, can solve problems such as easy blockage, excessive catalyst coking, and reduced process reliability.

Inactive Publication Date: 2008-04-30
UNIV OF UTAH RES FOUND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] Unfortunately, these two-step processes can suffer from the following problems: excessive catalyst coking, and the formation of polymer solids that easily plug the reactor
Many challenges remain to provide usable product yields without compromising process reliability

Method used

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  • Processes for catalytic conversion of lignin to liquid bio-fuels
  • Processes for catalytic conversion of lignin to liquid bio-fuels
  • Processes for catalytic conversion of lignin to liquid bio-fuels

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Embodiment Construction

[0029] Detailed description of the preferred embodiment

[0030] Before specific embodiments of the present invention are disclosed and described, it is to be understood that this invention is not limited to the particular methodology and materials disclosed herein as such methods and materials may vary to some extent. It should also be understood that the terminology used herein is for describing particular embodiments only and is not intended to be limiting, the scope of the present invention being defined only by the appended claims and their equivalents.

[0031] In describing and claiming the present invention, the following terms are used.

[0032] The singular forms "a", "an" and "this / the / this" include plural forms unless the context clearly dictates otherwise. Thus, for example, reference to "a step" includes one or more of such steps.

[0033] As used herein, "reaction" includes single-step reactions and multi-step reactions, which may be direct reactions from reacta...

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Abstract

Processes for conversion of lignin to liquid products such as bio-fuels and fuel additives are disclosed and described. A process for conversion of a lignin material to bio- fuels can include subjecting the lignin material to a base catalyzed depolymerization reaction to produce a partially depolymerized lignin. The partially depolymerized lignin can then be subjected to a stabilization / partial hydrodeoxygenation reaction to form a partially hydrodeoxygenated product. Following partial hydrodeoxygenation, the partially hydrodeoxygenated product can be reacted in a refining step to form a bio-fuel. Each of these reaction steps can be performed in single or multiple steps, depending on the design of the process. The production of an intermediate partially hydrodeoxygenation product and subsequent reaction thereof can significantly reduce or eliminate reactor plugging and catalyst coking. A variety of useful bio-fuels such as fuels, fuel additives, and the like can be readily produced from renewable lignin materials in an improved conversion process.

Description

field of invention [0001] The present invention generally relates to the conversion of biomass to fuels, fuel additives, and other industrially useful products. More specifically, the present invention relates to a multi-step catalytic process for the production of hydrocarbon products from lignin. Background of the invention [0002] The current market for energy carriers and fuels is largely dominated by high prices for oil and natural gas due to depletion of readily available deposits, increased demand from the development of emerging market economies, and environmental concerns of. Consequently, these growing energy demands will require the efficient reconstitution and / or replacement of a substantial fraction of fossil fuels with renewable energy technologies, such as biomass-based energy technologies. This new energy sector will develop as well-established technologies are available to produce a variety of biocommodities, including transportation fuels and chemical bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/00C07C1/00
CPCC10G2300/1014Y02E50/17C10G2300/805C10G1/086C10G1/002Y02P30/20
Inventor W·W·兹迈尔恰克J·D·米勒
Owner UNIV OF UTAH RES FOUND
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