Catalytic Synthesis of Triethanolamine in a Microchannel Reactor
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Translated
|
| Journal |
Catalysis in Industry
ISSN: 2070-0504
, E-ISSN: 2070-0555
|
| Output data |
Year: 2019,
Volume: 11,
Number: 1,
Pages: 45-52
Pages count
: 8
DOI:
10.1134/S2070050419010033
|
| Tags |
monoethanolamine, diethanolamine, triethanolamine, ammonia, ethylene oxide, catalytic synthesis, microchannel reactor, numerical modeling |
| Authors |
Andreev D.V.
1
,
Sergeev E.E.
1
,
Makarshin L.L.
1
,
Ivanov E.A.
1
,
Gribovskii A.G.
1,2
,
Adonin N.Yu.
1,2
,
Pai Z.P.
1
,
Parmon V.N.
1,2
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
|
| 2 |
Novosibirsk National Research State University
|
|
Funding (2)
|
1
|
Federal Agency for Scientific Organizations
|
0303-2016-0007
|
|
2
|
Federal Agency for Scientific Organizations
|
0303-2016-0008
|
Experimental studies of ammonia oxyethylation in a flow microchannel reactor are performed in
broad ranges of temperatures (70–180°C) and residence times (0.47–3.3 min). The main products of the
reaction between ethylene oxide (EO) and ammonia are monoethanolamine (MEA), diethanolamine
(DEA), and target triethanolamine (TEA). It is shown that EO conversion grows along with residence time τ
and reaches 90% at τ = 3.3 min. The highest selectivity toward MEA and DEA is observed at a temperature
of 70°C and τ = 3.3 min. High selectivity toward TEA (84%) is achieved at short τ (0.47 min) and the maximum
temperature (180°C). The TEA yield grows along with temperature and the residence time to reach 62%
at τ = 3.3 min and temperatures of 155–180°C. Mathematical modeling of the ammonia oxyethylation process
allows the kinetic constants of individual stages to be calculated. Differences between the obtained
kinetic parameters and the literature data, due probably to using a microchannel reactor that ensures high
parameters of heat and mass transfer instead of a traditional bulk triethanolamine synthesis reactor, are
revealed.