A method for co-producing organic solvent and hydrogen by using traditional Chinese medicine residue
A technology of organic solvent and traditional Chinese medicine dregs, which is applied in the field of biomass recycling and fermentation engineering, can solve the problems of poor fermentation effect of Clostridium, achieve low hydrolysis cost, reduce treatment cost, and simple process
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Embodiment 1
[0036] Weigh 20g of Shiquandabu plaster residue that has been dried and crushed to 30-40 mesh powder, add it to 100ml of dilute sulfuric acid with a concentration of 1-3% (V / V) (solid-to-liquid ratio 1:5), and Hydrolyze at 120°C for 120 min, filter and wash the residue with deionized water to 100 mL. The obtained filtrate was neutralized to pH 4.0-5.0 with calcium hydroxide, filtered again and the residue was washed with deionized water to 100mL, the obtained filtrate was the dilute acid hydrolyzate of the medicinal residue, and the total reducing sugar, glucose, monophenol and polyphenol content, as shown in Table 1.
[0037] Table 1 Hydrolysis of traditional Chinese medicine dregs under different concentrations of sulfuric acid
[0038]
Embodiment 2
[0040] Weigh and dry Shiquandabu plaster dregs that have been dried and crushed to 30-40 mesh powder and add it to 100mL of dilute sulfuric acid with a sulfuric acid concentration of 2% (V / V) at a solid-to-liquid ratio of 1:4-1:6. Hydrolyze at 120°C for 120 min, filter and wash the residue with deionized water to 100 mL. The obtained filtrate was neutralized to pH 4.0-5.0 with calcium hydroxide, filtered again and the residue was washed with deionized water to 100mL, the obtained filtrate was the dilute acid hydrolyzate of the medicinal residue, and the total reducing sugar, glucose, monophenol and polyphenol content, as shown in Table 2.
[0041] Table 2 Hydrolysis of traditional Chinese medicine dregs under different solid-liquid ratios
[0042]
Embodiment 3
[0044] Weigh 20g of Shiquandabu plaster dregs that have been dried and crushed to 30-40 mesh powder, add it to 100mL of dilute sulfuric acid with a sulfuric acid concentration of 2% (V / V) (solid-to-liquid ratio 1:5), and heat at 120°C. Hydrolyze for 90-150 minutes respectively, filter and wash the residue with deionized water to 100 mL. The obtained filtrate was neutralized to pH 4.0-5.0 with calcium hydroxide, filtered again and the residue was washed with deionized water to 100mL, the obtained filtrate was the dilute acid hydrolyzate of the medicinal residue, and the total reducing sugar, glucose, monophenol and polyphenol content, as shown in Table 3.
[0045] Table 3 Hydrolysis of traditional Chinese medicine dregs at different times
[0046]
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