Студенттер мен жас ғалымдардың «фараби әлемі» атты халықаралық ғылыми конференциясы
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Сборник конф Фараби Әлемі 2023 химфак-печать
| RESEARCH ON CO
2 ABSORPTION USING HUMIC SUBSTANCES Kozhamuratova U.M., Kazankapova M.K., Yermagambet B.T., Kasenova Zh.M. Institute of Coal Chemistry and Technology LLP kozhamuratova.u@mail.ru, maira_1986@mail.ru, bake.yer@mail.ru, zhanar_k_68@mail.ru The basis of the work was the study of the absorption of CO 2 by humic acid salts. Humic acid salts are produced by the Institute of Coal Chemistry and Technology LLP. In this publication, the absorption of pollutants by humic substances deserves special attention. GW are natural polyelectrolytes that have an aromatic base, strongly replaced by functional groups. In nature, humic coatings attached to the surface of mineral particles provide a higher sorption capacity of soils and sediments in relation to organic chemicals. Carbon capture reduces CO 2 emissions from fossil fuel power plants, taking into account current and future energy needs. Humic substances can reduce up to 90% of carbon dioxide emissions. Carbon capture methods are proposed to reduce CO 2 emissions. Of the many methods of CO 2 capture, the chemical absorption method using amines is the most technologically advanced. The attempt to use other solutions (called solvents) for absorption has been the subject of many scientific studies. Studies conducted by the Institute of Coal Chemistry and Technology LLP have shown that humic acid salts demonstrate a fairly good absorption of CO 2 . It should be noted that there is very little data in the open literature on the absorption of CO 2 by humic acid salts. During these studies, aqueous solutions of potassium humate (50%) were tested as CO 2 sinks. To this end, laboratory experiments were conducted in which salts were saturated with a CO 2 /nitrogen gas mixture at 23°C. The CO 2 absorption capacity of the studied humic salts was in the range of 30,703 g of CO 2 /kg of solvent. The advantage of using humic salts is that the solution after absorption of CO 2 can be widely used in agriculture as an organo-mineral fertilizer saturated with K 2 CO 3 . In addition, it is harmless and non-toxic. Therefore, it can probably be considered a green solvent. The reagent is an organic humic liquid product extracted from coal, which has been shown to be able to remove greenhouse gases to high levels. The results of this adsorption study require further studies on CO 2 removal. "The study was carried out with the financial support of the Science Committee of the Ministry of Science and Higher Education of the Republic of Kazakhstan (grant no. AR14871353. Research of scientific foundations and development of technology for obtaining organomineral fertilizers by absorbing greenhouse gases with natural humic substances)" жүктеу/скачать 2,6 Mb. Достарыңызбен бөлісу:
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