Thermal depolymerization of biomass with emphasis

pseudorandom: Thermal Depolymerization - Boosman

2010-3-16 · The thermal depolymerization process is not, of course, 100 percent efficient. Some energy must be used. This implies, even in a best-case scenario of high efficiency and widespread deployment, continued utilization of energy from outside the loop, so to speak.

Lignin depolymerization and utilization by bacteria

Several studies have focused on bacteria involved in the process of lignin depolymerization and utilization. This natural polymer is the second most widespread biomass that makes up 15%–35% of the cell wall composition (Brown and Chang, 2014, Zhao et al., With the current emphasis and potential growth of cellulosic ethanol,

Lignin - Task 34

Lignin is the second most abundant component in typical biomass, but more uniquely may be one of the few routes to aromatic compounds not derived from petroleum. As a common product from processes that use biomass as a feed, such as the paper industry, subsequent research has also been common.

Irradiation Pretreatment of Tropical Biomass and

2016-7-20 · Interest on biofuel production from biomass and biofiber has gain great attention globally because these materials are abundant, inexpensive, renewable, and sustainable. Generally, the conversion of biomass and biofiber to biofuel involves several processes including biomass production, pretreatment, hydrolysis, and fermentation. Selecting the most efficient pretreatment is crucial to

University of Liege | Biomass and Green Technologies

ABSTRACT Lignin isolated from Miscanthus × giganteus using acidic (FAL) and basic (AL) conditions was thereafter subjected to catalytic depolymerization under thermal or ultrasonic activation. The characterization of lignin samples was achieved by thermogravimetric analysis and FTIR.

US8772557B2 - Aromatic hydrocarbons from

Processes are disclosed that achieve a high conversion of lignin to aromatic hydrocarbons, and that may be carried out without the addition of a base. Depolymerization and deoxygenation, the desired lignin convention steps to yield aromatic hydrocarbons, are carried by contacting a mixture of lignin and a solvent (e.g., a lignin slurry) with hydrogen in the presence of a catalyst.

Info - Biomass - Free Energy Planet

2018-9-5 · The properties of pyrolytic liquids from biomass such as their high oxygen contents and acidity generally limit their fuel uses to heating oils. The emphasis over the past several years has therefore been to develop methods for upgrading them to more hydrocarbon-like liquids for use as motor fuels and motor fuel components.

US8716522B2 - Acetic acid production from biomass

Methods are disclosed for producing, from renewable carbon sources, acetic acid in an economical manner. In particular, these methods are directed to the separation and recovery of acetic acid as a substantial product (e.g., as much as 5% by weight or more) of biomass pyrolysis. For a given commercial biomass pyrolysis unit, the acetic acid yield can represent a significant quantity of that

Organic Solvent Effects in Biomass Conversion

A special emphasis is placed on comparing the solvent effects on conversion and product selectivity in water with those in organic solvents while discussing the origins of the differences that arise. , Formaldehyde stabilization facilitates lignin monomer production during biomass depolymerization, Organic Solvent Effects in Biomass

Thermal Depolymerization of Biomass with Emphasis

Thermal Depolymerization of Biomass with Emphasis on Gasifier Design and Best Method for Catalytic Hot Gas Conditioning. This paper reviews ways that biomass can be converted by thermal depolymerization to make synthetic gas, i.e. syngas. Biomass, being carbon neutral, is considered as a form of solar energy stored during the growing season by

What is Thermal Depolymerization? (with picture)

2019-4-9 · Thermal depolymerization is an industrial process for breaking down various waste materials into crude oil products. This involves subjecting the materials to high temperatures and pressure in the presence of water, thereby initiating a process known as hydrous pyrolysis. The result is the

Lignin depolymerization and utilization by bacteria

Several studies have focused on bacteria involved in the process of lignin depolymerization and utilization. This natural polymer is the second most widespread biomass that makes up 15%–35% of the cell wall composition (Brown and Chang, 2014, Zhao et al., With the current emphasis and potential growth of cellulosic ethanol,

Bioconversion of biomass to mixed alcohol fuels - ipfs.io

The bioconversion of biomass to mixed alcohol fuels can be accomplished using the MixAlco process. Through bioconversion of biomass to a mixed alcohol fuel, more energy from the biomass will end up as liquid fuels than in converting biomass to ethanol by yeast fermentation.

Bioconversion of biomass to mixed alcohol fuels -

2019-5-3 · The bioconversion of biomass to mixed alcohol fuels can be accomplished using the MixAlco process. Through bioconversion of biomass to a mixed alcohol fuel, more energy from the biomass will end up as liquid fuels than in converting biomass to ethanol by yeast fermentation.

One-Pot Conversion of Carbohydrates in Biomass to

2017-1-21 · This study proposes a one-pot conversion of carbohydrates in biomass to branched oxygenates in methanol, employing noble metal and alkali cation as catalysts. The main product, isobutyroin, is highly concentrated when the reaction temperature and consequent pressure reach the supercritical point of methanol. The type of alkali cation and ratio of feedstock/alkali also significantly

Advanced Biofuels from Thermochemical Processing

Advanced Biofuels from Thermochemical Processing of Sustainable Biomass in Europe. Authors; with particular emphasis on the pyrolysis of biomass and bio-oil upgrading using conventional oil refinery settings. Lin YC, Carlson TR, Shen J, Zhang T, Yang B, Wyman CE, Conner WC, Huber GW (2010) Depolymerization of lignocellulosic biomass to

Reaction mechanisms in cellulose pyrolysis: a

2019-5-19 · @article{osti_7298596, title = {Reaction mechanisms in cellulose pyrolysis: a literature review}, author = {Molton, P.M. and Demmitt, T.F.}, abstractNote = {A bibliographic review of 195 references is presented outlining the history of the research into the mechanisms of cellulose pyrolysis. Topics discussed are: initial product identification, mechanism of initial formation of levoglucosan

pseudorandom: Thermal Depolymerization - Boosman

2010-3-16 · The thermal depolymerization process is not, of course, 100 percent efficient. Some energy must be used. This implies, even in a best-case scenario of high efficiency and widespread deployment, continued utilization of energy from outside the loop, so to speak.

The Overview of Thermal Decomposition of Cellulose

2013-8-29 · The configuration of cellulose in lignocellulosic biomass would be discussed, with regard to its content, isolation methods, the characterization of the macromolecules and the inter-linkages among the units. Cellulose is the prominent chemical component in lignocellulosic biomass, accounting for approximately 50% by weight.

THERMAL DEPOLYMERIZATION: The Alternative

Thermal depolymerization should be more properly viewed as a form of recycling. But this process will never have the net energy of the original fossil fuels. As fossil fuels dwindle, so will the source material.

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