Direct biomass hydroliquefaction process comprising two ebullated bed hydroconversion steps

A technology of hydrogenation conversion and hydrogenation liquefaction, applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, biofuels, etc., can solve problems such as operational difficulties, and achieve operability improvement and optimization Preparation, life-enhancing effects

Active Publication Date: 2011-07-20
INST FR DU PETROLE
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Problems solved by technology

Therefore the slurry method encounters operational difficulties

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  • Direct biomass hydroliquefaction process comprising two ebullated bed hydroconversion steps
  • Direct biomass hydroliquefaction process comprising two ebullated bed hydroconversion steps
  • Direct biomass hydroliquefaction process comprising two ebullated bed hydroconversion steps

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Embodiment Construction

[0045] The present invention relates to a process for the direct hydroliquefaction of biomass, alone or in combination, to produce a fuel base. More particularly, the present invention relates to a process comprising two consecutive hydroconversion steps using ebullating bed technology at high hydrogen pressure.

[0046] Biomass feed

[0047] The biomass feed may be selected from algae, lignocellulosic biomass and / or one or more components of lignocellulosic biomass selected from the group comprising cellulose, hemicellulose and / or lignin .

[0048] "Lignocellulosic biomass" means a feedstock rich in cellulose and / or hemicellulose and / or lignin. Only one of the components of the lignocellulosic biomass can be extracted for hydroliquefaction. This extract or other remainders may also constitute feedstock, especially lignin, which may be used in the present invention.

[0049] The lignocellulosic feedstock may consist of wood or plant waste. Other non-limiting examples of ...

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Abstract

A process for direct hydroliquefaction of biomass selected from algae, lignocellulosic biomass and/or of one or more constituents of lignocellulosic biomass selected from the group comprising cellulose, hemicellulose and/or lignin for producing fuel bases comprising two successive hydroconversion stages under high hydrogen pressure in ebullating bed reactors. Hydroconversion takes place in the presence of a supported catalyst of the type for hydroconversion of petroleum residue and a suspension composed of the biomass and a solvent, preferably a hydrogen donor solvent and preferably recycled from the process. The biomass can undergo a pretreatment of drying and/or roasting and/or grinding and/or demineralization prior to hydroliquefaction.

Description

technical field [0001] The present invention relates to one or more biomasses selected from algae, lignocellulosic biomass and / or lignocellulosic biomass selected from the group comprising cellulose, hemicellulose and / or lignin A method of direct hydroliquefaction of components to produce fuel bases. More particularly, the present invention relates to a process comprising two sequential hydroconversion steps using an ebullating bed process at high hydrogen pressure. Background technique [0002] Over the years there has been a growing interest in introducing products of renewable origin into the fuel and chemical industries to supplement or replace products of fossil origin. One possible route is the conversion of lignocellulosic biomass or algae into fuel bases. [0003] Lignocellulosic biomass is basically composed of three natural polymers: cellulose, hemicellulose and lignin. Cellulose and hemicellulose are basically composed of sugar polymers (hexoses and pentoses). ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/08C10G3/00C10G65/12C10G65/02
CPCC10G2300/1014B01J23/883C10G3/46C10G2300/1037C10G2400/04C10G3/48C10G3/47C10G2300/4018B01J23/652C10G2300/4012C10G2300/1074C10G1/08B01J23/755Y02E50/30C10G3/45C10G3/50C10G2400/02C10G2400/08C10G2300/1022C10G1/083Y02E50/10B01J23/40B01J23/85C10G3/56B01J23/75C10G2300/44C10G2300/4006B01J37/20Y02P30/20
Inventor A·基尼亚尔W·韦斯
Owner INST FR DU PETROLE
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