Calculating liquid-vapour equilibrium of NH 3 -CO 2 -H 2  system under the conditions of urea synthesis process

Piotrowski, J.; Kozak, R.; Kujawska, M.

Artykuł - szczegóły

Tytuł artykułu

Calculating liquid-vapour equilibrium of NH₃-CO₂-H₂ system under the conditions of urea synthesis process

Autorzy

Piotrowski J. , Kozak R. , Kujawska M.

Identyfikatory

Warianty tytułu

Języki publikacji

Abstrakty

The paper presents a new method for calculation of liquid-vapour equilibrium establishing in an urea synthesis process under the following conditions: T=433-463 K, NH(3)JCO2=2.3-3.6, Hpexc/CO2=O.I-O.6 and in the whole range of carbon dioxide conversion. The method is based on the excess Gibbs free energy of the liquid phase which leads to equations describing the composition effect on the activity coefficients according to Gibbs-Duhem equation. The method makes it possible to calculate the equilibrium composition of liquid and gas phase as well as equilibrium pressure and gives thermodynamic characteristics of the system.

Słowa kluczowe

liquid-vapour equilibrium urea synthesis

równowaga ciecz-para mocznik synteza

Wydawca

Centrum Materiałów Polimerowych i Węglowych PAN

Czasopismo

Polish Journal of Applied Chemistry

Rocznik

1999

Tom

Vol. 43, nr 1-2

Strony

57--67

Opis fizyczny

Bibliogr. 23 poz.

Twórcy

autor

Piotrowski J.

Institute of Chemistry, Inorganic Technology and Electrochemistry. Silesian Technical University, 44-101 Gliwice, ul. Krzywoustego 6, Poland

autor

Kozak R.

ZA “Puławy” S.A., 24-100 Puławy, Al. Tysiąclecia P.P 13, Poland

autor

Kujawska M.

Institute of Chemistry, Inorganic Technology and Electrochemistry. Silesian Technical University, 44-101 Gliwice, ul. Krzywoustego 6, Poland

Bibliografia

[1] G. EFREMOVA, G. LEONTEVA, Khim. Prom., 10, 42 (1962).
[2] S. LEMKOWITZ, M. de COOKER, P. VAN DER BERG, Appl. Chem. Biotechnol., 23, 63, (1973).
[3] J. PIOTROWSKI, Chem. Stos., 2, 239, (1984).
[4] J. PIOTROWSKI, Chem. Stos., 3-4, 393, (1984).
[5] J. PIOTROWSKI, Chem. Slos., 1-2, 41, (1985).
[6] R. STATEVA, V. KAFAROV, Zh. Prikl. Khim., 5, 1036 (1986).
[7] R. STATEVA, V. KAFAROV, Zh. Prikl. Khim., 6, 1265 (1986).
[8] V. KUCHERYAVYI, G. ZINOVEV, Khim. Prom., 5, 354 (1969).
[9] R. KOZAK, Thermodynamic model of vapour-liquid equilibrium in the urea synthesis process (in Polish). PhD Thesis. Silesian Technical University, Gliwice 1987.
[10] J. SZARAWARA, J. PIOTKOWSKI, R. KOZAK, Chem. Stos., 1, 73, (1987).
[11] J. PIOTROWSKI, M. ZOŁOTAJKIN, Pol. J. Appl. Chem., 1-2, 61, (1993).
[12] J. PIOTROWSKI M. ZOŁOTAJKIN, M. PRZYBYSLAWSKA, Pol. J. Appl. Chem., 3-4, 277, (1992).
[13] J. PIOTROWSKI, R. KOZAK, M. KUJAWSKA, Chem. Eng. Sci., 53, 183 (1998).
[14] S. KAWASUMI, Koatsu Gasu Kyokaishi, 2, 40 (1956).
[15] S. INOUE, K. KANAI, E. OTSUKA, Bull. Chem. Soc. Japan, 45, 1339, (1972).
[16] M. FREJACQUES, Chim. Ind. (Paris), 60, 1, 22, (1948).
[17] S. WALAS, Phase Equilibria in Chemical Engineering, Butterworth Publishers, London, 1985, pp. 145, 301.
[18] R.C. REID, J.M. PRAUSNITZ, T. SHERWOOD, The Properties of Gases and Liquids, 3rd Edition, McGraw-Hill Book Company, New York 1977, p. 37.
[19] R.C. REID, J.M. PRAUSNITZ, B.E. POLING, The Properties of Gases and Liqui/h, 4th Edition. McGraw-Hill Book Company, Singapore, 19S8, p. 273.
[20] H.R. NULL, Phase Equlibrum in Process Design, Wiley Inc., 1970, pp. 38-39.
[21] S. MALANOWSKI, Liquid-Vapour Equilibrium (in Polish), PWN, Warszawa 1974.
[22] O. REDLICH, A, KISTER, Ind. Eng. Chem., 40, 345, (1948).
[23] S. KAWASUMI, Bull. Chem. Soc. Japan, 27, 254, (1954).

Typ dokumentu

Bibliografia

Identyfikator YADDA

bwmeta1.element.baztech-article-BPP1-0013-0077

Calculating liquid-vapour equilibrium of NH3-CO2-H2 system under the conditions of urea synthesis process

Calculating liquid-vapour equilibrium of NH₃-CO₂-H₂ system under the conditions of urea synthesis process