Pressure Stabilization in the Distillation Column of a Transportable Gas Station for Nitrogen Production
DOI:
https://doi.org/10.14529/power190301Keywords:
energy-saturated units, thermal disturbances, pressure stabilization, air rectification, nitrogen production, simu-lation modelingAbstract
When energy-saturated continuously running units run aperiodic processes and equipment, thermodynamic parameters of material flows may be disturbed. This paper considers transportable gas stations and dwells upon stabilizing distillation columns for making liquefied nitrogen; pressure stabilization is necessary to optimize the air-separation unit when the throttle feed flow is exposed to a thermal disturbance caused the air cleaning absorbers switching to parallel operation. The research team tested a TKDS-100V gas production station and ran simulations in MATLAB/Simulink to identify the patterns in the pressure in the nitrogen-producing distillation column. The paper thus substantiates a method for pressure stabilization, which is based on temporary cessation of distillate outtake.
References
Perry R.H, Green D.W. Perry’s Chemical Engineers’ Handbook. McGraw-Hill, N.-Y., 2008. 2728 p.
Wärmeübertragung im Gegenstrom, Gleichstrom und Kreuzstrom. Dr.-Ing. E.h. Helmuth Hausen em. Pro-fessor der Technischen Universität Hannover. Springer-Verlag, Berlin Heidelberg New York, 1976. DOI: 10.1007/978-3-642-88686-7_3
Kirsanov Ju.A. Ciklicheskie teplovye processy i teoriya teploprovodnosti v regenerativnykh vozduho-podogrevatelyakh [Cyclic Thermal Processes and the Theory of Heat Conductivity in Regenerative Airheaters]. Moscow, Fizmatlit Publ., 2007. 240 p.
Yoon S.Y., Choi B.S., Ahn J.H., Kim T.S. Improvement of Integrated Gasification Combined Cycle Per-formance Using Nitrogen from the Air Separation Unit as Turbine Coolant. Applied Thermal Engineering, 2019, vol. 151, pp. 163–175. DOI: 10.1016/j.applthermaleng.2019.01.110
Chen S., Dong X., Xu J., Zhang H., Gao Q., Tan C. Thermodynamic Evaluation of the Novel Distillation Column of the Air Separation unit with Integration of Liquefied Natural Gas (LNG) Regasification. Energy, 2019, vol. 171, pp. 341–359. DOI: 10.1016/j.energy.2018.12.220
Zaharov M.K., Moiseeva V.D. [Multicolumn Rectification as a Way of Energy Saving at Division the Zeo-tropic of Binary Systems]. Khimicheskaya promyshlennost’ [Chemical Industry], 2003, no. 9, pp. 35–42. (in Russ.)
Arharov A.M., Beljakov V.P. Kriogennye sistemy. T.2. Osnovy proektirovaniya apparatov, ustanovok i sys-tem [Cryogenic Systems. Vol. 2. Bases of Design of Devices, Installations and Systems]. Moscow, Mashinostroenie Publ., 1999. 719 p.
Narinskiy G.B. Rektifikaciya vozdukha [Air Rectification]. Moscow, Mashinostroenie Publ., 1978. 248p.
Kokarev A.M., Gunin A.L., Slyusarev M.I. [Analysis of Work of the Airdividing TKDS-100 В Installation in the Mode of Receiving Liquid Nitrogen] Aviakosmicheskie tehnologii: trudy VIII mezhdunar. nauch.-tekhn. konf. i shkoly molodykh uchenykh, aspirantov i studentov [Aerospace Technologies. Works VIII International Scientific and Technical Conference and Schools of Young Scientists, Graduate Students and Students]. Voronezh, 2017, pp. 167–172. (in Russ.)
Skogestad S. Dynamics and Control of Distillation columns – a Critical Survey. Modeling, Indentification and Control, 1997, vol. 18, no. 3, pp. 177–217. DOI: 10.4173/mic.1997.3.1
Choe Y.-S. Rigorous Dynamic Models of Distillation Columns. MSE Thesis, Bethlehem, Lehigh Universi-ty, 1985, p. 73.
Roffel B., Betlem B.H.L., de Ruijter J.A.F. First Principles Dynamic Modeling and Multivariable Control of a Cryogenic Distillation Process. Computers and Chemical Engineering, 2000, vol. 24, pp. 111–123. DOI: 10.1016/S0098-1354(00)00313-6
Luyben W.L. Process Modeling, Simulation and Control for Chemical Engineers. McGraw-Hill, 1999, 741 p.
Zhu G.Y., Henson M.A., Megan L. Low-Order Dynamic Modeling of Cryogenic Distillation Columns Based on Nonlinear Wave Phenomenon. Separation and Purification Thechnology, 2001, vol. 24, pp. 467–487. DOI: 10.1016/S1383-5866(01)00147-2
Khvostov A.A., Zhuravlev A.A., Slyusarev M.I., Vorobyov A.A. [Calculating the Coefficient of Relative Volatility for Nitrogen-Oxygen Mix from Experimental Data]. Novoe v tekhnologii i tekhnike funkcional'nykh produktov pitaniya n aosnov emediko-biologicheskikh vozzreniy: mater. VI Mezhdunar. nauch.-tekhn. konf. [Nove¬lties in Technology and the Equipment of Functional Food on the Basis of Medicobiological Views: Mater. the VI Mezhdunar. Scientific and Technical Conference]. Voronezh, 2017, pp. 987–991. (in Russ.)
Ramm V.M. Absorbcija gazov [Absorption of Gases]. 2nd ed. Moscow, Himija Publ, 1976. 656p.
Borzenko E.I., Zaytsev A.V. Ustanovki i sistemy nizkotemperaturnoy tekhniki. Avtomatizirovannyy raschet i modelirovanie processov kriogennykh ustanovok i sistem [Installations and Systems of the Low-Temperature Equipment. Computer-Aided Design and Modeling of Processes of Cryogenic Installations and Sys-tems], St. Petersburg, SPbGUNiPT Publ, 2006. 232 p.
Akulov L.A., Borzenko E.I., Novotelnov V.N., Zaytsev A.V. Teplofizicheskie svoystva krioproduktov [Thermophysical Properties of Cryoproducts]. St. Petersburg, Polyequipment Publ, 2012. 243 p.
Romankov P.G., Frolov V.F., Flisyuk O.M. Metody rascheta processov i apparatov himicheskoy tekhnologii [Methods for Design of Processes and Devices in Chemical Industry]. St. Petersburg, Himizdat Publ, 2009. 544 p.
Robert C. Reid, John M. Prausnitz and Thomas K. Sherwood. The Properties of Gases and Liquids. Third Edition. McGraw-Hill, 1977. 688 p. DOI: 10.1002/aic.690240634
