Unlock instant, AI-driven research and patent intelligence for your innovation.

Biomass carbon-based solid acid for synthesis of 5-hydroxymethyl furfural and preparation method thereof

A carbon-based solid acid, hydroxymethyl furfural technology, applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve problems such as lack of research on catalytic monosaccharide hydrolysis

Inactive Publication Date: 2016-12-07
JIANGSU UNIV
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the research on carbon-based solid acids mainly focuses on their use in the hydrolysis of cellulose, but there is a lack of related research on the use of synthetic carbon-based solid acids to catalyze the hydrolysis of monosaccharides.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Biomass carbon-based solid acid for synthesis of 5-hydroxymethyl furfural and preparation method thereof
  • Biomass carbon-based solid acid for synthesis of 5-hydroxymethyl furfural and preparation method thereof
  • Biomass carbon-based solid acid for synthesis of 5-hydroxymethyl furfural and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: This embodiment illustrates the method for preparing solid acid catalysis

[0025] In this embodiment, solid acid is prepared in a box-type resistance furnace, and the specific steps are:

[0026] (1) Connect the pipeline of the box-type resistance furnace, turn on N2, set the flow rate to 100mL / min, check the air tightness with soapy water and ensure that there is no air leakage, pre-introduce nitrogen for 5 minutes, exhaust the air inside, and set the N2 flow rate to 60mL / min, spare;

[0027] (2) Weigh 50 g of microcrystalline cellulose powder, heat it at 450 ° C for 6 h in N2 air flow to produce a black solid, cool it, and then grind it into powder to obtain 12.76 g, which is C.

[0028] (3) adding oleum (20-23wt.%SO4) to the carbonized solid powder 3 ), add 150mL oleum to the carbonized microcrystalline cellulose, and boil at 80°C for 10h.

[0029] (4) After cooling to room temperature, the suspension was filtered to obtain a black precipitate, whic...

Embodiment 2

[0031] Embodiment 2: This embodiment illustrates another method for preparing solid acid catalysis

[0032] In this embodiment, solid acid is prepared in a box-type resistance furnace, and the specific steps are:

[0033] (1) Connect the pipeline of the box-type resistance furnace, turn on N2, set the flow rate to 100mL / min, check the air tightness with soapy water and ensure that there is no air leakage, pre-introduce nitrogen for 5 minutes, exhaust the air inside, and set the N2 flow rate to 60mL / min, spare;

[0034] (2) 200g of bagasse powder at 500°C in N 2 It was heated under air flow for 5h to produce a black solid which was cooled and then ground into a powder to give 69.96g as B.

[0035] (3) adding oleum (20-23wt.%SO4) to the carbonized solid powder 3 ), add 150mL oleum to the carbonized microcrystalline cellulose, add 500mL oleum to the carbonized bagasse powder, and boil at 80°C for 10h.

[0036] (4) After cooling to room temperature, the suspension was filtered...

Embodiment 3

[0037] Embodiment 3: This embodiment illustrates another method for preparing solid acid catalysis

[0038] (1) Connect the box-type resistance furnace pipeline, open the N 2 , the flow rate is set to 100mL / min, check the air tightness with soapy water and ensure that there is no air leakage, pre-introduce nitrogen for 5 minutes, exhaust the air, set the N2 flow rate to 60mL / min, and set it aside;

[0039] (2) Bagasse powder 150g at 480°C N 2 It was heated under air flow for 5.5h to produce a black solid which was cooled and then ground into a powder to give 37.31 g as B.

[0040] (3) adding oleum (20-23wt.%SO4) to the carbonized solid powder 3 ), add 150mL oleum to the carbonized microcrystalline cellulose, add 500mL oleum to the carbonized bagasse powder, and boil at 80°C for 10h.

[0041] (4) After cooling to room temperature, the suspension was filtered to obtain a black precipitate, which was repeatedly washed with hot distilled water (80°C, 3L) until impurities were n...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a biomass carbon-based solid acid for the synthesis of 5-hydroxymethyl furfural and a preparation method thereof. The provided solid acid can be used to catalyze reactions between glucose and fructose to generate 5-hydroxymethyl furfural; the highest conversion rate can reach 99%, and the highest yield can reach 64%.

Description

technical field [0001] The invention belongs to the field of biotechnology. Background technique [0002] Solid acid catalyst is a new type of green catalyst. Compared with traditional inorganic acid catalysts and metal salt catalysts, it has the characteristics of simple preparation, low corrosion to equipment, good thermal stability, easy recovery, and recyclable utilization. Biomass carbon-based solid acid is prepared from sugar compounds or biomass through incomplete carbonization and sulfonation. [0003] In the prior art, sucrose, glucose, starch, etc. are generally used as raw materials for incomplete carbonization followed by sulfonation to obtain biomass carbon-based solid acids. In 2004, Hara H et al prepared a new type of carbon-based solid acid containing high-density sulfonic acid groups by using carbon-containing compounds such as polycyclic aromatic hydrocarbons glucose and microcrystalline cellulose. In 2005, Toda M et al. used glucose as raw material, carr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/02B01J27/20C07D307/46
CPCB01J27/02B01J27/20C07D307/46
Inventor 周存山邹彬马海乐余筱洁赵静鲍鑫捷
Owner JIANGSU UNIV