Abstract
This paper presents the results of comparative analysis of three run cycles of platinum catalyst for higher paraffins C9–C14 dehydrogenation process, performed using mathematical model. The results of model calculations were compared with the experimental data obtained at the industrial unit. It was established that deactivation of the platinum dehydrogenation catalyst is influenced by the technological modes of its operation, such as temperature, pressure, hydrogen/feedstock molar ratio and water supply. In the process of higher paraffins dehydrogenation, the phenomenon of platinum catalyst self-regeneration is observed. This occurs due to the action of feedstock components, in particular water and hydrogen involved in oxidation and hydrogenation of intermediate condensation products (coke structures). Model calculations showed that with a decrease in the hydrogen/feedstock molar ratio and simultaneous increase in water supply, depending on the temperature and composition of feedstock, it is possible to slow down deactivation process and increase the catalyst service life. This fact was experimentally confirmed at industrial unit.
| Original language | English |
|---|---|
| Pages (from-to) | 1672-1682 |
| Number of pages | 11 |
| Journal | Petroleum Science and Technology |
| Volume | 36 |
| Issue number | 20 |
| DOIs | |
| Publication status | Published - 18 Oct 2018 |
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Keywords
- catalyst
- deactivation
- dehydrogenation
- higher paraffins
- hydrogen
- mathematical model
- molar ratio
ASJC Scopus subject areas
- Chemistry(all)
- Chemical Engineering(all)
- Fuel Technology
- Geotechnical Engineering and Engineering Geology
- Energy Engineering and Power Technology
Cite this
Comparative analysis of catalyst operation in the process of higher paraffins dehydrogenation at different technological modes using mathematical model. / Frantsina, Evgeniya V.; Ivanchina, Emiliya D.; Ivashkina, Elena N.; Belinskaya, Nataliya S.; Fefelova, Kseniya O.
In: Petroleum Science and Technology, Vol. 36, No. 20, 18.10.2018, p. 1672-1682.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Comparative analysis of catalyst operation in the process of higher paraffins dehydrogenation at different technological modes using mathematical model
AU - Frantsina, Evgeniya V.
AU - Ivanchina, Emiliya D.
AU - Ivashkina, Elena N.
AU - Belinskaya, Nataliya S.
AU - Fefelova, Kseniya O.
PY - 2018/10/18
Y1 - 2018/10/18
N2 - This paper presents the results of comparative analysis of three run cycles of platinum catalyst for higher paraffins C9–C14 dehydrogenation process, performed using mathematical model. The results of model calculations were compared with the experimental data obtained at the industrial unit. It was established that deactivation of the platinum dehydrogenation catalyst is influenced by the technological modes of its operation, such as temperature, pressure, hydrogen/feedstock molar ratio and water supply. In the process of higher paraffins dehydrogenation, the phenomenon of platinum catalyst self-regeneration is observed. This occurs due to the action of feedstock components, in particular water and hydrogen involved in oxidation and hydrogenation of intermediate condensation products (coke structures). Model calculations showed that with a decrease in the hydrogen/feedstock molar ratio and simultaneous increase in water supply, depending on the temperature and composition of feedstock, it is possible to slow down deactivation process and increase the catalyst service life. This fact was experimentally confirmed at industrial unit.
AB - This paper presents the results of comparative analysis of three run cycles of platinum catalyst for higher paraffins C9–C14 dehydrogenation process, performed using mathematical model. The results of model calculations were compared with the experimental data obtained at the industrial unit. It was established that deactivation of the platinum dehydrogenation catalyst is influenced by the technological modes of its operation, such as temperature, pressure, hydrogen/feedstock molar ratio and water supply. In the process of higher paraffins dehydrogenation, the phenomenon of platinum catalyst self-regeneration is observed. This occurs due to the action of feedstock components, in particular water and hydrogen involved in oxidation and hydrogenation of intermediate condensation products (coke structures). Model calculations showed that with a decrease in the hydrogen/feedstock molar ratio and simultaneous increase in water supply, depending on the temperature and composition of feedstock, it is possible to slow down deactivation process and increase the catalyst service life. This fact was experimentally confirmed at industrial unit.
KW - catalyst
KW - deactivation
KW - dehydrogenation
KW - higher paraffins
KW - hydrogen
KW - mathematical model
KW - molar ratio
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U2 - 10.1080/10916466.2018.1504068
DO - 10.1080/10916466.2018.1504068
M3 - Article
VL - 36
SP - 1672
EP - 1682
JO - Petroleum Science and Technology
JF - Petroleum Science and Technology
SN - 1091-6466
IS - 20
ER -