Journal of Siberian Federal University. Chemistry / The Activity of the HF-Modified Ferrospheres in Oxidative Coupling of Methane

Full text (.pdf)
Issue
Journal of Siberian Federal University. Chemistry. 2018 11 (3)
Authors
Kirik, Nadezhda P.; Anshits, Natalia N.; Rabchevskii, Evgenii V.; Solovyov, Leonid A.
Contact information
Kirik, Nadezhda P.: Institute of Chemistry and Chemical Technology SB RAS FRC “Krasnoyarsk Science Center SB RAS” 50/24 Akademgorodok, Krasnoyarsk, 660036, Russia; kiriknp@icct. ru; Anshits, Natalia N.: Institute of Chemistry and Chemical Technology SB RAS FRC “Krasnoyarsk Science Center SB RAS” 50/24 Akademgorodok, Krasnoyarsk, 660036, Russia; Rabchevskii, Evgenii V.: Institute of Chemistry and Chemical Technology SB RAS FRC “Krasnoyarsk Science Center SB RAS” 50/24 Akademgorodok, Krasnoyarsk, 660036, Russia; Solovyov, Leonid A.: Institute of Chemistry and Chemical Technology SB RAS FRC “Krasnoyarsk Science Center SB RAS” 50/24 Akademgorodok, Krasnoyarsk, 660036, Russia
Keywords
fly ash ferrospheres; HF-modification; oxidative coupling of methane
Abstract

Catalytic properties in the reaction of oxidative coupling of methane (OCM) of HF-modified ferrospheres separated from combustion brown coal fly ash are investigated. It is established that the modification of ferrospheres results in a significant increase in the efficiency of C2-hydrocarbons formation at 750 °C, the yield increases by 1.5-2.0 times, the content of ethylene in the C2-products – up to 30 %, and at 850 °C – up to 65 %. It is suggested that the high efficiency of ethylene formation is associated with the formation of oxifluoride centers, which are deactivated at 850 °C and converted into oxide centers of deep oxidation

Pages
347-360
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/107065