Composite Catalysts Based On Fly Ash Of Thermal Power Plants And Natural Zeolite For Purification Of Gas Emissions And Catalytic Cracking Of Fuel Oil
Shakiyeva T.V. Sassykova L.R. Khamlenko A.A. Dossumova B.T. Sassykova A.R. Batyrbayeva A.A. Zhaxibayeva Z.M. Kozhaisakova M.A. Azhigulova R.N. Sendilvelan S.
September 2021Asian Research Publishing Network
ARPN Journal of Engineering and Applied Sciences
2021#16Issue 181877 - 1885 pp.
In this research, the hollow microspheres based on fly ash from the Ekibastuz coal deposit (Kazakhstan), produced as a result of the operation of TPP-2 (Almaty, Kazakhstan) were used for investigation of two processes. The composite on the base of cenisheres was applied in the technology of SO2 oxidation with oxygen in aqueous solution at T=40-60°C. Conditions of selective oxidation of SO2 (100%) to obtain sulfuric acid as a product were optimized. Specific surface of the catalyst calculated according to full isotherms of low-temperature adsorption of nitrogen by BET method makes 12.6 m2/g. Integral volume of pores makes 0.57 ml/g. The results showed that the degree of SO2 removal was up to 94.9%. The catalysts based on fly ash cenospheres with addition of natural zeolite from Tayzhuzgen field (Kazakhstan) were also tested in the process of catalytic cracking of fuel oil (with preliminary electromagnetic excitation of hydrocarbon molecules) to obtain light carbon fractions. On the optimal catalyst in the products of oxidative cracking of fuel oil, the fraction of light gas oil is the main part. Determination of the individual composition of the hydrocarbons included in this fraction showed that the formation of C7-C12 hydrocarbons happened exclusively due to the symmetric decomposition of C14-C24 paraffins, since the products of this reaction are the corresponding α-olefins and n-alkanes
Almaty TPP-2 , catalytic cracking , Ekibastuz coal , fly ash , highly toxic organic compounds , natural zeolite , water and gas purification
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Scientific and Production Technical Center “Zhalyn” LLP, Almaty, Kazakhstan
Al-Farabi Kazakh National University, Almaty, Kazakhstan
Almaty College of Economics and Law, Almaty, Kazakhstan
Abai Kazakh National Pedagogical University, Almaty, Kazakhstan
Almaty Technological University, Almaty, Kazakhstan
Department of Mechanical Engineering, Dr. M.G.R. Educational and Research Institute, University, Chennai, Tamil Nadu, India
Scientific and Production Technical Center “Zhalyn” LLP
Al-Farabi Kazakh National University
Almaty College of Economics and Law
Abai Kazakh National Pedagogical University
Almaty Technological University
Department of Mechanical Engineering
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