25 / 30
allied
academies
Journal of Biotechnology and Phytochemistry
Volume 1 Issue 3
Chemistry World 2017
Notes:
Page 45
November 13-15, 2017 Athens, Greece
7
th
World Congress on
Chemistry
Mechanism of low-temperature ignition of
acetaldehyde-oxygen gas mixtures, initiated by peroxy
radicals
I A Vardanyan, A M Arustamyan, A B Harutyunyan, A S Martirosyan
and
S
V Tsarukyan
A B Nalbandyan Institute of Chemical Physics, Armenia
D
uring the low temperature ignition of acetaldehyde-
oxygen mixtures, initiated by peroxide compound,
adsorbed on the reactor surface, at its heating, a decrease of
the ignition temperature, depending on the surface nature,
has been detected. In the case of H
3
BO
3
, it drops to the room
temperature, but in the case of NaCl it was remarkably higher.
The reason of such heterogeneous nature of the ignition of
aldehyde-oxygen mixtures was not clear. Taking into account
the possibility of the interaction of adsorbed peroxy radicals
with acetaldehyde and methane the comparison and the
analysis data of has been made. The general attention has
been focused on the comparison of data, received in the
case of H
3
BO
3
and NaCl. The correlation between the rate
of heterogeneous interaction of peroxy radicals and the
ignition temperature of above mentioned mixtures has been
established. Taking into account the experimental fact, that
the rate of peroxy radicals (CH
3
O
2
) reaction with organic
compound (methane, aldehyde) on the H
3
BO
3
surface is more
than on the NaCl surface and that this is in accordance with
lower ignition temperature in the case of H
3
BO
3
surface than
in the case of NaCl surface, it was concluded, that the essence
of the heterogeneous nature of the initiation of the ignition
process of CH
3
CHO + O
2
mixtures consists in set of the fire
by a radical process going on the surface. Bearing in mind the
possibility of heterogeneous interaction of C
2
H
5
O
2
radicals
with C
2
H
5
CHO, it is possible to consist that this explanation
is available and for the ignition of C
2
H
5
CHO-O
2
mixtures.
Biography
I A Vardanyan is working under chemistry department as a professor at A B
Nalbandyan institute of chemical physics , Armenia
ivardan@ichph.sci.amI A Vardanyan et al., J Biotech and Phyto 2017