Asian Journal of Multidimensional Research (AJMR)
https://www.tarj.in
344
AJMR
P u b l i s h e d b y :
T R A N S
A s i a n R e s e a r c h J o u r n a l s
AJMR:
A s i a n J o u r n a l
o f M u l t i d i m e n s i o n a l
R e s e a r c h
( A D o u b l e B l i n d R e f e r e e d & P e e r R e v i e w e d I n t e r n a t i o n a l J o u r n a l )
DOI:
10.5958/2278-4853.2021.00683.2
CATALYTIC CHANGES OF C1-C4 ALKANES IN
(MoO
3
)
x
∙
(ZnO)
y
∙
(ZrO
2
)
z
∙
(B
2
O
3
)
k
CATALYST
I.M.Nurmanova*;N.I.Fayzullayev**
1,2
Samarkand State University, Samarkand, UZBEKISTAN
ABSTRACT
Catalytic conversion of hydrocarbons C
1
-C
4
in a steel flow reactor with an internal diameter of
12 mm, at normal atmospheric pressure, in the range of 550-650
℃
, the volumetric velocity of
reagent mixture 175-350 ml/min and contact time 0.5- Studied under conditions of 17.0 sec.The
acidic properties of the catalysts were investigated by thermogrammed desorption of
ammonia.The structure and position of the active centres of the catalyst were determined by
electron microscopy, and the surface area was determined by the BET method.From aromatic
hydrocarbons C
1
-C
4
, aromatic hydrocarbons are formed in the (MoO
3
)
x
∙
(ZnO)
y
∙
(ZrO
2
)
z
∙
(B
2
O
3
)
k
catalyst with maximum yield.
KEYWORDS:
C
1
-C
4
-Alkanes, Aromatic Hydrocarbons, Reaction Yield, Selectivity, Flow
Reactor, BET Equation, Specific Surface Area.
INTRODUCTION
C
1
-C
4
-alkanes are a component of natural, petroleum gases and waste gases from oil refineries,
from which aromatic hydrocarbons, olefins and high molecular weight alkanes can be obtained
in the presence of multifunctional catalysts [1-4].
Today, however, most light hydrocarbons are used as process fuels or burned in flares.Currently,
scientists around the world are conducting extensive research to make efficient use of light
hydrocarbons.In the processing of light hydrocarbons and the production of substances important
for the economy, the yield of products depends mainly on their nature, composition, method of
preparation of catalysts and the conditions of the reaction [4-8].
The catalytic conversion of light alkanes to aromatic hydrocarbons and olefins is currently being
intensively developed in the presence of zeolite catalysts.The catalytic conversion of light
alkanes to aromatic hydrocarbons and olefins is currently developing rapidly [9-14].
In this study, the results of the conversion of C
1
-C
4
-alkanes to aromatic hydrocarbons are given
in zeolite-containing catalysts.Based on the above, the work aims to create a catalyst for the
ISSN: 2278-4853 Vol 10, Issue 9, September, 2021 Impact Factor: SJIF 2021 = 7.699
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