Simulation of the Rectification Process Taking into Account the Longitudinal Diffusion on the Equations of the Working Lines

A. B. Golovanchikov, V. N. Karev, N. A. Prokhorenko

Abstract


Analytically, on the basis of the differential equations of material balance, the equations of working lines and mass transfer in the distillation column for binary mixtures for the strengthening and exhaustive parts of the packed distillation column with a diffusion structure of the flow in a continuous liquid phase are derived. Comparative examples of the calculation for typical structures of the flow of ideal displacement are given using the derived equations that take into account the longitudinal diffusion for a “ethanol – ethyl alcohol” binary mixture. A calculation algorithm is proposed and technological and geometrical parameters are compared with similar parameters of the same column, calculated according to a typical algorithm, when the dispersed gas phase has the structure of an ideal displacement flow, and the continuous liquid phase is an ideal mixing. The scheme of material flows and their concentrations is presented in the exhaustive part of the rectification column taking into account the longitudinal diffusion.

Full Text:

PDF

References


Bagaturov S.A. Osnovy teorii i rascheta peregonki i rektifikatsii [Fundamentals of the theory and calculation of distillation and rectification], Moscow, Chemistry, 1974. (in Russ.)

Pavlov K.F., Romankov P.G., Noskov A.A. Primery i zadachi po kursu protsessov i apparatov khimicheskoy tekhnologii [Examples and tasks on the course of processes and devices of chemical technology: Textbook for high schools], Moscow, Chemistry, 1987. (in Russ.)

Nikolaev P.I. Protsessy i apparaty khimicheskoy i neftekhimicheskoy tekhnologii [Processes and apparatus of chemical and petrochemical technology: Textbook for high schools], Moscow, Chemistry, 1987. (in Russ.)

Ramm V.M. Absorbtsiya gazov [Absorption of gases], Moscow, Chemistry, 1976. (in Russ.)

Timonin A.S. Osnovy rascheta i konstruirovaniya khimiko-tekhnologicheskogo i prirodookhrannogo oborudovaniya: Spravochnik [Basics of calculation and design of chemical-technological and environmental protection equipment], Kaluga, Bochkareva Publishing House, 2002. (in Russ.)

Dytnersky Y.I. Osnovnye protsessy i apparaty khimicheskoy tekhnologii: posobie po proektirovaniyu [The main processes and apparatus of chemical technology], Moscow, Alliance, 2008. (in Russ.)

Golovanchikov A.B., Prokhorenko N.A., Karev V.N. Algorithm for calculating the packed distillation column with allowance for longitudinal mixing in the liquid phase [Algoritm rascheta nasadochnoy rektifikatsionnoy kolonny s uchetom prodol'nogo peremeshivaniya po zhidkoy faze], Izvestiya VolgGTU [Proceedings VSTU], 2016, no.3(182), pp. 14-17. (in Russ.)

Kafarov V.V. Metody kibernetiki v khimii i khimicheskoy tekhnologii: uchebnik [Methods of Cybernetics in Chemistry and Chemical Technology], Moscow, Chemistry, 1985. (in Russ.)

Levenshpil O. Inzhenernoe oformlenie khimicheskikh protsessov [Engineering design of chemical processes], Moscow, Chemistry, 1969. (in Russ.)

Timonin A.S. Uchebnoe posobie po kursu "Khimiya nefti i gaza" [Training manual on the course "Chemistry of oil and gas"], Ufa, UGNTU, 2014. (in Russ.)

Golovanchikov A.B., Reshetova A.A., Ostroukhova A.S., Fetisov E.G. Approximation of tabular dependencies in equilibrium of binary mixtures by a power equation [Approksimatsiya tablichnykh zavisimostey po ravnovesiyu binarnykh smesey stepennym uravneniem], Izvestiya Volgogradskogo gosudarstvennogo tekhnicheskogo universiteta. Seriya "Reologiya, protsessy i apparaty khimicheskoy tekhnologii" [News of the Volgograd State Technical University. Series: Rheology, processes and devices of chemical technology], 2011, vol.4, no.1(74), pp. 37-39. (in Russ.)

Golovanchikov A.B., Vasilyeva E.V., Ostroukhova A.S., Reshetnikov A.A. Improving the accuracy of approximation of tabular dependencies on the equilibrium of binary mixtures. [Povyshenie tochnosti pri approksimatsii tablichnykh zavisimostey po ravnovesiyu binarnykh smesey], Izvestiya VolgGTU. Seriya "Aktual'nye problemy upravleniya vychislitel'noy tekhniki i informatiki v tekhnicheskikh sistemakh" [Proceedings VSTU. Series "Actual problems of computer management and informatics in technical systems"], 2011, vol. 12 no. 11(84), pp. 9-12. (in Russ.)

Golovanchikov A.B., Prokhorenko N.A. Material balance modeling taking into account longitudinal diffusion in a distillation column [Modelirovanie material'nogo balansa s uchetom prodol'noy diffuzii v rektifikatsionnoy kolonne], Izvestiya VolgGTU. Seriya "Aktual'nye problemy upravleniya vychislitel'noy tekhniki i informatiki v tekhnicheskikh sistemakh" [Proceedings VSTU. Series "Actual problems of computer management and informatics in technical systems"], 2018, no. 5(215), pp. 18-21. (in Russ.)

Golovanchikov A.B., Prokhorenko N.A., Karev V.N. Algorithm for the calculation of a packed distillation column taking into account the longitudinal mixing in the liquid phase [Algoritm rascheta nasadochnoy rektifikatsionnoy kolonny s uchetom prodol'nogo peremeshivaniya po zhidkoy faze], Izvestiya VolgGTU. Seriya "Aktual'nye problemy upravleniya vychislitel'noy tekhniki i informatiki v tekhnicheskikh sistemakh" [Proceedings VSTU. Series "Actual problems of computer management and informatics in technical systems"], Volgograd, 2016, no.3 (182), pp. 14-17. (in Russ.)

Golovanchikov A.B., Prokhorenko N.A. Calculation of the dispersion of reproducibility in the absence of parallel experiments [Raschet dispersii vosproizvodimosti v otsutstvii parallel'nykh opytov], Izvestiya VolgGTU. Seriya "Aktual'nye problemy upravleniya vychislitel'noy tekhniki i informatiki v tekhnicheskikh sistemakh" [Proceedings VSTU. Series "Actual problems of computer management and informatics in technical systems"], 2016, no. 11(190), pp. 13-16. (in Russ.)

Golovanchikov A.B., Prokhorenko N.A. Simulation of rectification process in a packed column with a diffusion structure of the flow in the liquid phase [Modelirovanie protsessa rektifikatsii v nasadochnoy kolonne s diffuzionnoy strukturoy potoka po zhidkoy faze], Izvestiya VolgGTU. Seriya "Aktual'nye problemy upravleniya vychislitel'noy tekhniki i informatiki v tekhnicheskikh sistemakh" [Proceedings VSTU. Series "Actual problems of computer management and informatics in technical systems"], 2015, no.14(178), pp. 12-16. (in Russ.)

Bobylev V.N. Thermal design of the heater taking into account the structure of the coolant flow [Teplovoy raschet podogrevatelya s uchetom struktury potoka teplonositelya], Khimicheskaya promyshlennost' segodnya [Chemical industry today], 2009, no.7, pp. 45-50. (in Russ.)

Golovanchikov A.B., Vorotneva S.B. Modeling the operation of a two-pipe heat exchanger taking into account the heat diffusion of the gas coolant [Modelirovanie raboty dvukhtrubnogo teploobmennika s uchetom teplodiffuzii gazovogo teplonositely], Izvestiya vuzov. Khimiya i khimicheskaya tekhnologiya [Izvestiya Vuzov. Chemistry and Chemical Technology], 2015, vol. 58, no.9, pp. 58-62. (in Russ.)

Golovanchikov A.B., Vorotneva S.B. Modelirovanie gidrodinamicheskikh i teplovykh protsessov v dvukhtrubnom teploobmennike: monografiya [Simulation of hydrodynamic and thermal processes in a two-pipe heat exchanger: monograph], Volgograd: VolgGTU, 2015, 160 p. (in Russ.)

Prokhorenko N.A., Golovanchikov A.B. Method of calculating packed distillation column taking into account longitudinal diffusion [Metodika rascheta nasadochnoy rektifikatsionnoy kolonny s uchetom prodol'noy diffuzii], Povyshenie effektivnosti protsessov i apparatov v khimicheskoy i smezhnykh otraslyakh promyshlennosti: sb. nauch. tr. mezhdu-nar. nauch.-tekhn. konf., posvyashch. 105-letiyu so dnya rozhd. A.N. Planovskogo [Improving the efficiency of processes and devices in the chemical and related industries: Sat. scientific tr. between-nar. scientific and technical conf., dedicated. 105th anniversary of the birth. A.N. Planovsky], Moscow, 2016, pp. 368-371. (in Russ.)




DOI: http://dx.doi.org/10.24892/RIJIE/20190207

Refbacks

  • There are currently no refbacks.


Copyright (c) 2020 A. B. Golovanchikov, V. N. Karev, N. A. Prokhorenko

© Russian Internet Journal of Industrial Engineering. ISSN 2310-0818

E-mail: indust.engineering.ru@gmail.com

Another version of the web site: http://indust-engineering.ru