Open AccessCatalytic activity of hierarchical structure based on Ni-Al layered double hydroxide
Author(s) -
А. М. Алиев,
Z. Sharafieva,
Alexander Popkov,
D. R. Isakov,
D. Sultanaliev
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/516/1/012029
Subject(s) - hydroxide , catalysis , nial , nickel , aluminium hydroxide , aluminium , chemistry , materials science , fluid catalytic cracking , inorganic chemistry , metallurgy , organic chemistry , intermetallic , alloy
In this paper, the characteristics of the composition and structure of NiAl layered double hydroxide as a precursor element of the catalytic system are determined. According to x-ray fluorescence analysis, nickel content in layered double hydroxide was 86%, aluminum - 13%. The obtained elements of the catalytic system have a specific surface area of 158 m 2 /g and stability at high temperatures and pressures. The results of the study of catalytic activity in cracking reactions of C 11 -C 22 higher alkanes in the presence of Ni-Al layered double hydroxide at temperatures of 450°C and 500°C and a flow rate of 0.5 ml/min, with a ratio of raw materials to the catalyst equal to 30 are given. The products of catalytic conversion of the initial mixture of alkanes are C 7 -C 14 normal- and isoalkanes. According to IR spectroscopy, unsaturated compounds were formed as the reaction products.