STUDY OF COKE FORMATION LAWS AND MECHANICAL STABILITY OF CATALYSTS ON NATURAL CARRIERS USED IN HYDROGENATED PROCESSING OF LIQUID PYROLYSIS PRODUCTS Journal title: Azerbaijan Chemical Journal Authors: Z.Ch. Salayeva, R.M. Mustafayeva, Kh.G. Isayev, N.A. Zeynalov, G.A. Mammadaliyev Subject(s):