The effect of mechanochemical activation and γ-radiation to a depth of coal catalytic hydrogenation of deposit Mamyt

Keywords: coal hydrogenation, release of liquid products, bauxite, mechanical activation, radiation exposure, Mamyt deposit

Abstract

This article presents the results of the mechanochemical activation of coal in a shock-grinding-type mill and the γ-radiation effect of a stream of electrons at the LU-6 electron accelerator. It was established that during the hydrogenation of dispersed coal, the yield of both total liquid products and coal distillates of various fractional composition increases. The maximum yield of liquid products (69.2 wt.%), gasoline (13.9 wt.%) and diesel (18.7 wt.%) fractions was observed during the hydrogenation of crushed coal for 30 min. It has been shown that the irradiation of coal with an electron flow (an irradiation dose of 150 kGy) also increases its reactivity in the process of hydrogenation, and also promotes the formation of free radicals and changes in iron compounds that make up the coal hydrogenation catalyst based on natural bauxite from the Turgai deposit. The non-linear regression method established the functional dependence of the yield of liquid products on the radiation dose, on the time of mechanical activation and on the concentration of free radicals, which are of an extreme nature.

References

1 Khrenkova TM, Kirda BC (1994) Solid Fuel Chemistry [Khimiya tverdogo topliva] 6:36-42. (In Russian)

2 Polubentsev AV, Proydakov AG, Kuznetsova LA (1999) Chemistry for Sustainable Development [Khimiya v interesah ustojchivogo razvitiya] 7:203-217. (In Russian)

3 Smutkina ZS, Sekrieru VI, Krichko IB, Skripchenko GB (1983) Solid Fuel Chemistry [Khimiya tverdogo topliva] 1:37. (In Russian)

4 Friedel RA, Berger JA (1959) Science 130:1762-1763. Crossref

5 Skripchenko GB (1998) Regularities of the formation of supramolecular structure in the process of coal metamorphism and the technology for producing highly carburized materials [Zakonomernosti formirovaniya nadmolekulyarnoj struktury v processe metamorfizma ug-lej i tekhnologii polucheniya vysokoobuglerozhennyh materialov]. Dissertation for Doctor of Chemical Science Degree [Discertatsiya na soiskaniye uchenoy stepeni doktora khimicheskikh nauk]. Moscow, Russia. P.53. (In Russian)

6 Krichko IB, Khrenkova TM, Kird VS (1984) Solid Fuel Chemistry [Khimiya tverdogo topliva] 1:18. (In Russian)

7 Maloletnev AS, Mazneva OA, Naumov KI (2015) Solid Fuel Chemistry [Khimiya tverdogo topliva] 6:35. (In Russian)

8 Kairbekov Zh, Dzheldybaeva IM, Kairbekov AZh, Yarkova TA, Gyul’maliev AM (2015) Coke and Chemistry 58:1-8. Crossref

9 Kairbekov ZK, Maloletnev AS, Dzheldybaeva IM, Sabitova AN, Ermoldina ET (2017) Solid Fuel Chemistry 51:365-369. Crossref

10 Kairbekov ZK, Maloletnev AS, Dzheldybaeva IM, Sabitova AN, Ermoldina ET (2015) Solid Fuel Chemistry 52:21-25. Crossref
Published
2019-05-03
How to Cite
Kairbekov, Z., Suimbayeva, S., Jeldybayeva, I., Kirali, M., & Yermoldina, Y. (2019). The effect of mechanochemical activation and γ-radiation to a depth of coal catalytic hydrogenation of deposit Mamyt. Chemical Bulletin of Kazakh National University, (1), 20-26. https://doi.org/https://doi.org/10.15328/cb1041
Section
Catalysis and Petrochemistry