Method for preparing alcohol and biochar from traditional Chinese medicine residues in gradient mode

A technology of traditional Chinese medicine dregs and biochar, applied in the field of resource utilization of biomass waste, to achieve the effect of solving the problem of high added value utilization, good economic benefits, and saving fermentation costs

Active Publication Date: 2016-04-20
UNIV OF SCI & TECH BEIJING
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AI Technical Summary

Problems solved by technology

[0005] At present, the ethanol fermentation of traditional Chinese medicine residues, and the cascade method of resource utilization of fermentation residues have not been reported.

Method used

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Examples

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Example Embodiment

[0023] Example 1

[0024] The method of the present invention is used for cascade utilization of Hypericum perforatum medicine residue to prepare ethanol and biochar. Specific steps are as follows:

[0025] (1) Crush the dregs of Hypericum perforatum with a water content of 8.8% to 40 mesh powder, weigh 10.0 g of dregs of Hypericum perforatum, add 100 mL of 2.0% sodium hydroxide solution to the dregs, and place in sterilization. Pot, soak at 120°C and 121MPa for 10 minutes, cool to room temperature after pretreatment;

[0026] (2) Add KH at 1.5g / L (total fermentation volume) 2 PO 4 , Add salvia miltiorrhiza dregs at a carbon-nitrogen ratio of 20:1

[0027] (3) Adjust the pH of the slurry in step (2) to 5.0;

[0028] (4) To the slurry obtained above, add Angel yeast at 0.005g per gram of Hypericum perforatum dregs (dry weight), add cellulase to 100 enzyme activity units per gram of Hypericum perforatum dregs (dry weight), and isolate the air at 37°C. After standing for 72 hours, the e...

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PUM

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Abstract

The invention provides a method for preparing alcohol and biochar from traditional Chinese medicine residues in a gradient mode and belongs to the technical field of biomass waste resource utilization. According to the method, traditional Chinese medicine residue dilute alkali is preprocessed, matter rich in nitrogen is added for alcohol fermentation, alcohol fermentation solid residues are subjected to pyrolysis in a high-temperature tube furnace at the nitrogen atmosphere, and biochar is prepared. The method for using the traditional Chinese medicine residues in the gradient mode is implemented, the alcohol yield of lignocellulose traditional Chinese medicine residues can be increased by one to three times through alcohol fermentation, the methylene blue adsorption rate is increased by 20-30%, and cellulose and lignin can be used more effectively. Resource utilization of a lignocellulose raw material is achieved, the method has important significance in widening the solid waste application range and developing new sources of alcohol and biochar, alcohol fermentation cost is reduced, the problem about biomass energy high-additional-value utilization is solved, and the method has good economic benefits and huge social benefits.

Description

technical field [0001] The invention relates to the technical field of utilization of biomass waste resources, in particular to a method for preparing ethanol and biochar by cascading the use of traditional Chinese medicine residues. Background technique [0002] Traditional Chinese medicine dregs are wastes produced during the preparation of traditional Chinese medicines. It is a typical industrial biomass. It is usually the waste after industrial production such as decoction and fermentation. It is a kind of biomass with complex morphology and high moisture content. At present, there are 2,000 Chinese medicine companies in my country, and the annual discharge of plant residues in China is as high as 700,000 tons. Medicinal dregs are generally wet materials, which are very perishable and have a bad smell. The traditional methods for the treatment of traditional Chinese medicine residues are incineration, landfill, and stacking in fixed areas. These treatment methods not on...

Claims

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Application Information

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IPC IPC(8): C12P7/10C12P19/14C01B31/02
CPCY02E50/10
Inventor 马鸿志王睿周全张凤英王晓娜汪群慧
Owner UNIV OF SCI & TECH BEIJING
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