EFFECT OF CH4, H2, AR, CARBON ADDITIVES AND THE SHAPE OF A REACTOR ON THE POROUS STRUCTURE OF ACETYLENE BLACK FORMED DURING THE DECOMPOSITION OF ACETYLENE Article Belov P.V., Kurbatova A.I., Vlaskin M.S., Lipatova I.A., Grigorenko A.V., Shkolnikov E.I., Fortov V.E. HIGH TEMPERATURE. MAIK NAUKA/INTERPERIODICA. Vol. 60. 2022. P. 821-829