Simple new correlation for the prediction of equilibrium constant (KP) of Haber reaction covering the industrial conditions
| Autor: | Fatma Khalifa Gad, Walaa Mahmoud Shehata, Muhammad Mahmoud El-Gharbawy |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Hydrogen
020209 energy chemistry.chemical_element Thermodynamics 02 engineering and technology Catalysis law.invention Ammonia production Ammonia chemistry.chemical_compound 020401 chemical engineering Geochemistry and Petrology Simple (abstract algebra) law Ammonia synthesis 0202 electrical engineering electronic engineering information engineering Range (statistics) Reactor modeling 0204 chemical engineering lcsh:Petroleum refining. Petroleum products Equilibrium constant Mathematics Renewable Energy Sustainability and the Environment Process Chemistry and Technology Organic Chemistry Haber process Nitrogen Process Simulation: Reaction thermodynamics Fuel Technology chemistry lcsh:TP690-692.5 |
| Zdroj: | Egyptian Journal of Petroleum, Vol 30, Iss 1, Pp 11-15 (2021) |
| ISSN: | 1110-0621 |
| Popis: | Ammonia is an important industrial chemical, and its production is one of the highest of all inorganic chemicals. It is synthesized, in principal, from nitrogen and hydrogen by Haber process. It was found that the equilibrium constant (KP) of Haber reaction is strongly pressure dependent. Many correlations were developed in order to rigorously express this (KP); however, the most reliable expressions involved are inherently complex. This paper illustrates a simple correlation which was developed to express the value of (KP) of Haber reaction at temperatures from 350 to 600 °C and pressures from 50 to 300 atm, which covers today’s industrial range. In this correlation, KP is expressed in terms of temperature and pressure of equilibrium mixture which is the direct data measured. The effects of temperature and pressure are not separated allowing KP to be calculated directly, without iterations; using spreadsheet. Results were compared to that of Gillespie and Beattie method showing very good match. The new simple correlation can be used easily in commercial simulation packages, e.g. Hysys, using its embedded spreadsheet to build reliable ammonia synthesis reactor modeling benefiting from featured analysis methods of these packages. |
| Databáze: | OpenAIRE |
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