The practical value of hydrolytic lignin
Lignin in consistency resembles sawdust substance, a conglomerate of different compounds, mono-and polysaccharides, organic acid, tar, ash, wax and other components.
The content of pure lignin in this matter reaches 40-88% and the percentage of solid carbon in hydrolytic lignin reaches 30%. This is a highly porous material with moisture content from 65 to 70%.
Physical and chemical characteristics of hydrolytic lignin contributed to a number of studies intended to developing the options for the extended use of the substance in chemical, energy and metallurgical industries.
The thermal qualities of the substance are 5000-6500 kcal / kg, the ignition temperature of 195 degrees Celsius, the spontaneous ignition temperature is 450 degrees. At a pressure of about 100kPa lignin can be converted into a viscous substance, it can be used in the manufacture of briquettes.
In addition, it has a high calorific value and it doesn’t fume, replacing coke many of the reducing agents in chemical industry.
Systematizing the spheres of the use of hydrolytic lignin, they are the following:
1) In energy sector:
- Production of fuel briquettes and fuel gas;
- Production of reducers for metals in the form of briquettes
2) In chemical industry:
- Sorbent for purification of industrial effluents;
- Medical sorbents
3) In agriculture:
- The production of organic fertilizers and herbicides;
- An additive to concrete in the asphalt business.
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The practical value of hydrolytic lignin
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