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A kind of molasses comprehensive utilization method

A molasses and modification technology, which is applied in the field of environmental protection treatment and resource utilization of waste biomass, can solve the problems affecting the transformation and utilization of molasses raw materials, lack of analysis of molasses raw materials, and low utilization of raw materials, so as to achieve good retardation and reduction Effect of water, increase of solid recovery rate, effect of increase in compressive strength

Active Publication Date: 2021-11-26
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There have been a lot of researches on the utilization and conversion technology of molasses, and a lot of results have been obtained, but there are still many problems, especially the following aspects are the most prominent: (1) The degree of conversion of raw materials is low
Although molasses can be fermented to produce a variety of biochemical products, the complex molasses structure affects the conversion and utilization of molasses raw materials by microorganisms, which ultimately leads to a low degree of raw material utilization; (2) The complexity of the chemical composition and structure of molasses makes its conversion process more demanding Microbial strains with stronger stress resistance, and through process control and optimization, realize the conversion of raw materials to products as much as possible; (3) There is still a lack of complete and systematic analysis of molasses raw materials, and it is necessary to establish a biomass system suitable for molasses. Versatile component separation method and application platform

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] After diluting the raw material of sugarcane molasses by 1 time, centrifuge at 5,000rpm for 10min to collect the lower layer of solid residue and the upper layer of liquid respectively; use 5% hydrochloric acid to adjust the pH value of the upper layer to 3.0, and then use an ultrafiltration membrane with a pore size of 0.001μm Perform ultrafiltration on the upper liquid, collect the retentate and permeate separately; fully mix the permeate and diethyl ether at a volume ratio of 1:0.5, and seal with a stopper; stir evenly at 40°C for 15 minutes; transfer the mixed solution into the separatory In the funnel, let stand to separate layers, and collect the upper organic phase, the middle gel and the lower aqueous phase respectively. The upper organic phase is used repeatedly, and the lower aqueous phase is fermentable sugar liquid; ethanol precipitates water-soluble colloids, and the retentate is mixed with ethanol at a volume ratio of 3:1, and stirred at 100rpm, and water-s...

Embodiment 2

[0047] After diluting the beet molasses raw material by 1 time, centrifuge at 8,000rpm for 15min to collect the lower layer of solid residue and the upper layer of liquid respectively; use 5% hydrochloric acid to adjust the pH value of the upper layer to 3.5, and then use an ultrafiltration membrane with a pore size of 0.001μm Perform ultrafiltration treatment on the upper liquid, collect the retentate and permeate separately; fully mix the permeate and petroleum ether at a volume ratio of 1:1, and seal with a stopper; stir evenly at 60°C for 40 minutes; transfer the mixed solution into a separate In a liquid funnel, let stand to separate layers, and collect the upper organic phase, the middle gel and the lower aqueous phase respectively. The upper organic phase is used repeatedly, and the lower aqueous phase is fermentable sugar solution; ethanol precipitates water-soluble colloids, and the retentate is mixed with ethanol at a volume ratio of 2:1, and stirred at 150rpm, and wa...

Embodiment 3

[0052] After diluting the soybean molasses raw material by 1 time, centrifuge at 6,000rpm for 15min to collect the solid residue in the lower layer and the liquid in the upper layer; adjust the pH value of the upper layer to 3.5 with 5% hydrochloric acid, and then use an ultrafiltration membrane with a pore size of 0.001μm Perform ultrafiltration on the upper liquid, collect the retentate and permeate separately; fully mix the permeate and diethyl ether at a volume ratio of 1:1, and seal with a stopper; stir evenly at 50°C for 30 minutes; transfer the mixed solution into the separatory In the funnel, let stand to separate layers, and collect the upper organic phase, the middle gel and the lower aqueous phase respectively. The upper organic phase is used repeatedly, and the lower aqueous phase is fermentable sugar solution; the ethanol precipitation water-soluble colloid is mixed with ethanol according to the volume ratio of 3:1, and stirred at 150rpm, and the water-soluble coll...

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Abstract

The invention discloses a method for comprehensive utilization of molasses, which includes two steps of separation and application, wherein the separation includes separating the solid and liquid of the molasses as follows to obtain a solid residue and a liquid part; adjusting the pH of the liquid part to 3.0-3.5, and then performing ultrafiltration, Obtain the retentate and permeate; the application includes extracting the permeate with ether solvent, and using the obtained water phase as fermentable sugar solution for fermentation production; the obtained solid residue can be used as a retarder and / or reducer for cement When used as an aqueous solution, the colloid can be extracted from the retentate for modifying starch. The present invention adopts the two-stage separation method of "centrifugation-ultrafiltration-extraction", respectively recovers three types of components of water-insoluble solid residue, water-soluble colloid and fermentable sugar in molasses, and utilizes them respectively, so that the sugar in molasses While the conversion efficiency is improved, the utilization efficiency of molasses raw materials is significantly increased, and the comprehensive utilization of all components of molasses can be realized.

Description

technical field [0001] The invention belongs to the technical field of biochemical industry, and in particular relates to a comprehensive utilization method of molasses, in particular to an environmental protection treatment and resource utilization method of waste biomass. Background technique [0002] Molasses is a high-sugar by-product produced in the process of extracting sucrose from sugar cane or sugar beets. It is brown or dark brown and has a thick texture. Molasses contains 75.90%-85.00% of dry matter, while the content of fermentable sugars (sucrose, glucose and fructose) and colloids account for 65%-87% of the total dry matter of molasses. [0003] The intensive production and industrialization development of modern industry and agriculture have broken the recycling link of waste and processing residues in traditional agriculture, resulting in a large accumulation of biomass. The comprehensive utilization and harmless treatment of biomass is an effective way to c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P7/08C08B31/00C04B24/00C04B103/22C04B103/30
CPCC04B24/001C04B2103/22C04B2103/302C08B31/00C12P7/08
Inventor 陈可泉何珣李辉欧阳平凯
Owner NANJING TECH UNIV
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