Calculation of a packed column for absorption of hydrogen sulfur from gases formed by separation of crude oil
| Autor: | A.B. Golovanchikov, V.I. Churikova, O.A. Zalipaeva |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
lcsh:GE1-350
Packed bed Piston pump Materials science Hydrogen 0211 other engineering and technologies Mixing (process engineering) Analytical chemistry chemistry.chemical_element 02 engineering and technology Péclet number 010501 environmental sciences 01 natural sciences Volumetric flow rate symbols.namesake Volume (thermodynamics) chemistry symbols 021108 energy Absorption (chemistry) lcsh:Environmental sciences 0105 earth and related environmental sciences |
| Zdroj: | E3S Web of Conferences, Vol 126, p 00070 (2019) |
| ISSN: | 2267-1242 |
| Popis: | According to the well-known calculating algorithm for the packed absorption column, the main technological parameters and geometric dimensions of the apparatus for hydrogen sulfide containing gases, formed during the separation of crude oil, are determined. A 2,5-n solution of monoethanolamine is selected as the absorbent. Comparative results of the calculations are showing, that the working pressure in the column should be 4 atm, since with their lower values, the flow rate of the absorbent and the size of the column are increasing. The increase in working pressure is impractical, since it will require a transition from centrifugal and compresses pumps to piston pumps. ∏ The obtained parameters were compared for an absorption column in which the flow structure of the gas and liquid phases corresponds to ideal displacement, with the calculation results when the flow structure in the gas phase corresponds to the ideal displacement mode (as in the standard calculation algorithm) and in the liquid phase to ideal mixing. It is shown that, with the Peclet number of longitudinal diffusion pee=30 the height and volume of the nozzle in the column increases by 27%. Another feature of the modelling and calculation of devices is a spike in concentration, meaning, that the lower part of the working line will cross the equilibrium. Calculations in thisparticular case show that at ≈ 11 the working line crosses the equilibrium and theoretically column height and volume →∞. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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