ACTIVE COALS FROM OILSEED STRAW
Rubrics: 2. CHEMICAL TECHNOLOGY
Authors:
1.
Russian Federation
3.
KNITU
4.
KNITU
Type:
Article
Pages:
from 98
to 102
Status:
In work
Language:
Russian
Keywords:
STRAW, ACTIVE CARBON, PYROLYSIS, ADSORPTION ISOTHERMS, SPECIFIC SURFACE AREA
Abstract (English):
The production of oil crops is associated with a number of problems, in particular, with the utilization of secondary resources of processing straw, husk, cake, residues from pressing seeds. Straw processing is not only a pressing problem, but also an opportunity to achieve sustainable development in the agricultural sector. There are several ways to process straw: composting, silage, making fuel briquettes. Russian scientists have also developed technologies that allow processing straw into fertilizers, construction materials, paper and glass analogues. Pyrolysis is another way of recycling waste. Pyrolysis is a method of thermal decomposition of polymeric materials or organic substances under the influence of temperature in the absence of an oxidizing environment. It is known that activated carbon obtained from oilseed straw is used for purification of water and gas media, in food and pharmaceutical industries, it is also used in the cosmetics industry to create cleansing and detoxifying products. In agriculture it is used to improve soil and reduce pollution of water bodies from chemical fertilizers. The aim of the work was to develop a technological basis for the pyrolysis of agricultural crop waste with the production of active carbons in the thermochemical activation (TCA) mode with sodium hydroxide (NaOH), and the porous structure and adsorption properties of the synthesized active carbons were analyzed. The porous structure characteristics were studied by low temperature nitrogen adsorption method (77 K). As a result of the study, data on the porous structure of the obtained active carbons were obtained and conclusions on the work were drawn.
The production of oil crops is associated with a number of problems, in particular, with the utilization of secondary resources of processing straw, husk, cake, residues from pressing seeds. Straw processing is not only a pressing problem, but also an opportunity to achieve sustainable development in the agricultural sector. There are several ways to process straw: composting, silage, making fuel briquettes. Russian scientists have also developed technologies that allow processing straw into fertilizers, construction materials, paper and glass analogues. Pyrolysis is another way of recycling waste. Pyrolysis is a method of thermal decomposition of polymeric materials or organic substances under the influence of temperature in the absence of an oxidizing environment. It is known that activated carbon obtained from oilseed straw is used for purification of water and gas media, in food and pharmaceutical industries, it is also used in the cosmetics industry to create cleansing and detoxifying products. In agriculture it is used to improve soil and reduce pollution of water bodies from chemical fertilizers. The aim of the work was to develop a technological basis for the pyrolysis of agricultural crop waste with the production of active carbons in the thermochemical activation (TCA) mode with sodium hydroxide (NaOH), and the porous structure and adsorption properties of the synthesized active carbons were analyzed. The porous structure characteristics were studied by low temperature nitrogen adsorption method (77 K). As a result of the study, data on the porous structure of the obtained active carbons were obtained and conclusions on the work were drawn.
Keywords:
STRAW, ACTIVE CARBON, PYROLYSIS, ADSORPTION ISOTHERMS, SPECIFIC SURFACE AREA
STRAW, ACTIVE CARBON, PYROLYSIS, ADSORPTION ISOTHERMS, SPECIFIC SURFACE AREA
