DEVELOPMENT OF NANOSIZED IRON AND IRON-MOLYBDENUM CATALYST BASED ON MAGNETIC COMPOSITES FOR THE HYDROGENATION OF COAL

Abstract

In this paper present the results of catalytic hydrogenation coal from the Kenderlyk deposit contenting various amount of active phase for the process. The methods have been developed giving the ratio Fe (III): Fe (II) to two, which corresponds to magnetite. The dependence of the porous structure of catalysts on the composition and concentration active phase were studied. As a result, it became clear that the activity of the catalysts increases with increase the concentration of Fe2О3 on the carrier from 4.0 to 10.0 wt. %, while the yield liquid product increases from 36.0 to 53.1%, at the adding a molybdenum compound (0.5-5%) into the catalyst composition leads to increase the liquid yield to 69.5%, and the yield of the gasoline fraction increases to 20.8% by chromatographic method. Hydrocarbon composition of the gasoline fractions of synthetic oil was determined . The gasoline fraction obtained at the presence of magnetized catalysts, the amount of paraffin hydrocarbons decrease from 32.5 to 13.4% and olefins from 4.2 to 3.2% and in isoparaffin hydrocarbons increase from 22.2 to 28.7% and aromatic hydrocarbons from 25.0 to 36.2% accordingly. Therefore, the optimal catalyst for coal hydrogenation process from Kenderlyk deposit was 10% Fe2О3+5% МоО.

References

[1] Kairbekov Zh.K., Emelyanova V.S., Zhubanov K.A., Myltykbaeva Zh.K., Bayzhomartov B.B. Theory and practice of coal processing. Almaty: Publishing house “Bilim”, 2013. 496 p.
[2] Kairbekov Zh.K., Toktamysov M.T., Zhalgasuly N., Eshova Zh.T. Complex processing of brown coal in Central Kazakhstan. Almaty: Kazak University, 2014. 278 p.
[3] Kairbekov Zh.K., Yermoldina E.T., Kairbekov A.Zh., Jeldybayeva I.M. Complex processing of brown coal of South Kazakhstan: Monograph. Almaty: Kazakh University, 2018. 454 p. ISBN 978-601-04-3090-7.
[4] Emelyanova V.S., Aybasov E.Zh., Kairbekov Zh.K., Shakiyeva T.V., Dosumova B.T., Dzhatkambaeva U.N., Baizhomartov B.B., Shakiev E.M. Study of surface phenomena and adsorption at the interphase boundaries of colloidal magnetic fluids with the surface of coal // Abstracts IV Int. scientific conf. “Colloids and surfaces - 2015”, Almaty, June, 3-5, 2015. P. 43.
[5] Emelyanova V.S., Aybasov E.Zh., Kairbekov Zh.K., Shakiyeva T.V., Dosumova, B.T., Dzhatkambaeva, U.N., Baizhomartov, B.B., Shakiev, E.M. Interaction of magnetic colloidal liquids with humic acids and the use of the obtained composites as sorbents and catalysts // Abstracts IV Int. scientific conf. “Colloids and surfaces - 2015”, Almaty, June, 3-5, 2015. P. 62.