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A dust-collecting device for dehydrogenation of paraffin hydrocarbons with a fluidized catalyst bed
https://doi.org/10.18412/1816-0387-2022-2-57-64
Abstract
The paper considers the problem of collecting solid particles in the production line with dehydrogenation of С4–С5 isoparaffins to isoolefins in a fluidized catalyst bed. The collecting of finely dispersed catalyst particles for dehydrogenation of paraffin hydrocarbons using a standard CN-15 cyclone and a new dust-collecting device (NDD) with arched elements was studied. The results of numerical simulation of CN-15 and NDD are reported. A comparative study revealed that NDD is more efficient than CN-15 in collecting the finely dispersed solid particles with the size below 20 μm. For NDD, determinate variations in the pressure and rate profiles, without any critical deviations, were observed. The gas flow rate through the arched elements of NDD was found to be stable, in distinction to CN-15, where high rates appear at the cyclone edges, thus raising the probability of dust breakthrough into the flow to be purified.
About the Authors
E. I. Salakhova
Nizhnekamsk Institute of Chemistry and Technology (branch of Kazan National Research Technological University)
Russian Federation
Russian Federation
A. V. Dmitriev
Kazan State Power Engineering University
Russian Federation
Russian Federation
V. E. Zinurov
Kazan State Power Engineering University
Russian Federation
Russian Federation
I. R. Nabiullin
PJSC "Nizhnekamskneftekhim", Nizhnekamsk
Russian Federation
Russian Federation
I. I. Salakhov
JSC "Taneco", Nizhnekamsk
Russian Federation
Russian Federation
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Review
For citations:
Salakhova E.I., Dmitriev A.V., Zinurov V.E., Nabiullin I.R., Salakhov I.I. A dust-collecting device for dehydrogenation of paraffin hydrocarbons with a fluidized catalyst bed. Kataliz v promyshlennosti. 2022;22(2):57-64. (In Russ.) https://doi.org/10.18412/1816-0387-2022-2-57-64
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