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Method for separating and recovering monosaccharide, organic acids and phenolic compound components from biomass hydrothermal liquefaction hydrolysate

A technology of hydrothermal liquefaction of phenolic compounds, applied in the preparation of organic compounds, separation/purification of carboxylic acid compounds, chemical instruments and methods, etc., can solve the problems of high cost, large consumption, and low selectivity of adsorption resins, etc. Achieve huge economic benefits, accelerate the pace of research, and promote the effect of development

Inactive Publication Date: 2016-05-25
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Extraction needs to consume a large amount of organic solvent, activated carbon regeneration is difficult, the selectivity of adsorption resin is not high, and membrane separation requires high cost

Method used

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  • Method for separating and recovering monosaccharide, organic acids and phenolic compound components from biomass hydrothermal liquefaction hydrolysate
  • Method for separating and recovering monosaccharide, organic acids and phenolic compound components from biomass hydrothermal liquefaction hydrolysate
  • Method for separating and recovering monosaccharide, organic acids and phenolic compound components from biomass hydrothermal liquefaction hydrolysate

Examples

Experimental program
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Effect test

Embodiment 1

[0034] The commercially available gel-type cation exchange resin AmberliteIR-12020g was filled into a glass column with a column diameter of 10mm to prepare a chromatography column with a column height of 25cm and a column volume of 20mL. Rinse alternately with 7% hydrochloric acid and sodium hydroxide aqueous solution, and wash with water until neutral. Rinse the resin column with 8% sodium chloride solution to convert the cation exchange resin into Na + type. Add 0.1 BV (resin bed volume) to the chromatographic column from the hydrolyzate obtained by hydrothermally liquefying rice straw at 300°C. Wash the resin column sequentially with 2.5BV deionized water and 2.5BV ethanol at a flow rate of 3BV / h, and collect the eluate. The collected eluate is analyzed by high-performance liquid chromatography (HPLC). The volume of the effluent during the elution process is taken as the abscissa, and the mass ratio of different components in the eluate to the original water sample is ta...

Embodiment 2

[0037] 120 g of commercially available macroporous anion exchange resin Amberlyst A2 was filled into a glass column with a column diameter of 10 mm to prepare a chromatography column with a column height of 25 cm and a column volume of 20 mL. Rinse with 7% hydrochloric acid solution and wash with water until neutral. Rinse the resin column with 8% sodium hydroxide solution to convert the anion exchange resin into OH -type, and wash to neutral. Add 0.1 BV of the hydrolyzate obtained by hydrothermally liquefying pine branches at 180°C to the chromatographic column. Wash the resin column with 4.0BV sodium hydroxide aqueous solution (1mol / L) at a flow rate of 3BV / h, and collect the eluate. After the collected eluate is acidified with 1mol / L hydrochloric acid aqueous solution, carry out HPLC analysis, take the volume of the effluent liquid during the elution as the abscissa, and the mass ratio of different components in the eluate and the original water sample as the ordinate co...

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Abstract

The invention provides a method for separating and recovering monosaccharide, organic acids and phenolic compound components from biomass hydrothermal liquefaction hydrolysate. The biomass hydrothermal liquefaction hydrolysate is an aqueous-phase substance generated by hydrothermal liquefaction, high-pressure liquefaction and the like of biomass materials such as enteromorpha prolifera, microalgae, straws, salix psammophila, tobacco stems, corncobs, sawdust, water hyacinth and pine twigs. A column chromatographic separation process is carried out by taking cation exchange resin or anion exchange resin as a stationary phase and taking deionized water, ethanol or aqueous alkali as mobile phases; organic acids and phenol components in high-temperature biomass hydrothermal liquefaction hydrolysate are separated by taking the advantage of an exclusion effect of the cation exchange resin on acid substances; monosaccharide and organic acid components in low-temperature hydrothermal liquefaction hydrolysate are separated by taking the advantage of ion exchange and adsorption functions of the anion exchange resin on the acid substances. Therefore, separation of three components including the monosaccharide, the organic acids and the phenolic compounds from the hydrolysate is realized, a basis is provided for further purification for acquisition of high-added-value of single chemical products, a new approach is provided for recycling of biomass such as the straws, and economic benefits and environmental benefits are achieved.

Description

technical field [0001] The invention belongs to the field of environment and new energy, and relates to the separation and recovery process of different components in the hydrothermal liquefaction hydrolyzate of biomass with complex components, in particular to a method for separating and recovering monosaccharides and organic acids from the hydrothermal liquefaction hydrolyzate of biomass And the method of phenolic compound component, the present invention utilizes cation exchange resin and anion exchange resin as stationary phase, with deionized water, ethanol and alkali solution as mobile phase, adopt column chromatography separation technology to three main components in hydrolyzate Separation of fractions to achieve the separation and recovery of monosaccharides, organic acids and phenolic substances. Background technique [0002] Biomass refers to various organic substances formed through photosynthesis. It not only has the properties of fossil fuels, but also can be s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07H1/08C07H3/02C07C51/47C07C37/82C07C41/36C07C45/79
Inventor 张士成陈凯绯吕航陈建民
Owner FUDAN UNIV