Haber-Bosch.
Enviado por Stella • 21 de Junio de 2018 • 1.320 Palabras (6 Páginas) • 305 Visitas
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For this process, it is necessary to take into account that the pressures and temperatures are very high as a consequence the costs are elevated. The plant must have strong piping and containment containers to withstand high pressures, which increases plant costs not only for the manufacture but the maintenance. Despite that, the cost of the starting materials and the use of recycled reactants minimize the cost of the raw materials. Also, some cost can be reduced by the automation of the process. Likewise, all the plant need to carry out with all the safety precautions; all the plants must have good ventilation and breathing devices as the ammonia is a toxic gas. The design of the plant should be resistant to all of the reactions, pressures, and temperatures. All the workers in the handling of liquid ammonia storage and transport need to wear special equipment, so the ammonia does not affect their health.
Conclusion
To conclude the process of Haber-Bosch is a process for the synthesis of ammonia at the industrial level that makes use of high temperatures and pressures in addition to an iron catalyst for the optimization of the process. The reaction that occurs is an exothermic reversible reaction; the catalyst helps the reaction to move to the right also the high pressures and temperatures contribute making the reaction much faster. Finally in the industrial process of ammonia, keeping in mind all the safety and health recommendations and the adopted conditions the costs of the plant should be the minimum.
References
Anon, (2017). [online] Available at: http://www.tsfx.com.au/wp-content/uploads/2012/07/ess-2012-student-notes-y12-chemistry-ammonia-final.pdf [Accessed 23 Jan. 2017].
Anon, (n.d.). Chemical Engineering Industrial-scale processes Production of base chemicals. [online] Available at: https://www.ld-didactic.de/documents/en-US/EXP/C/C5/C5112_e.pdf [Accessed 23 Jan. 2017].
Bbc.co.uk. (2017). BBC - GCSE Bitesize: Production costs. [online] Available at: http://www.bbc.co.uk/schools/gcsebitesize/science/add_gateway_pre_2011/chemical/ammoniarev4.shtml [Accessed 23 Jan. 2017].
Chemheritage.org. (2017). Fritz Haber | Chemical Heritage Foundation. [online] Available at: https://www.chemheritage.org/historical-profile/fritz-haber [Accessed 21 Jan. 2017].
Clark, J. (2013). The Haber Process for the manufacture of ammonia. [online] Chemguide.co.uk. Available at: http://www.chemguide.co.uk/physical/equilibria/haber.html [Accessed 22 Jan. 2017].
Giddey, S., Badwal, S. and Kulkarni, A. (2017). Review of electrochemical ammonia production technologies and materials.
Harpole, J. (2014). The Haber-Bosch Process. Midstream Business. [online] Available at: https://search-proquest-com.ezproxyd.bham.ac.uk/docview/1530141359?accountid=8630 [Accessed 21 Jan. 2017].
Kandemir, T., Schuster, M., Senyshyn, A., Behrens, M. and Schlögl, R. (2013). The Haber-Bosch Process Revisited: On the Real Structure and Stability of “Ammonia Iron” under Working Conditions. Angewandte Chemie International Edition, 52(48), pp.12723-12726.
Kraus, F. (2012). Otto Ruff and a Fluoride that Changed the World in Many Ways: UF6. Zeitschrift für anorganische und allgemeine Chemie, 638(5), pp.707-709.
Leigh, G. (2004). Haber-Bosch and Other Industrial Processes. Catalysts for Nitrogen Fixation, pp.33-54.
Miyazaki, T., Tanaka, H., Tanabe, Y., Yuki, M., Nakajima, K., Yoshizawa, K. and Nishibayashi, Y. (2014). Cleavage and Formation of Molecular Dinitrogen in a Single System Assisted by Molybdenum Complexes Bearing Ferrocenyldiphosphine. Angewandte Chemie International Edition, 53(43), pp.11488-11492.
Modak, J. (2002). Haber process for ammonia synthesis. Resonance, 7(9), pp.69-77.
Shakhashiri, (2008). AMMONIA, NH3. [online] Available at: http://scifun.chem.wisc.edu/chemweek/PDF/Ammonia.pdf [Accessed 22 Jan. 2017].
Trustyservant.com. (n.d.). Ammonia. [online] Available at: http://trustyservant.com/wp-content/uploads/2011/05/boschHaber.jpg [Accessed 23 Jan. 2017].
Vojvodic, A., Medford, A., Studt, F., Abild-Pedersen, F., Khan, T., Bligaard, T. and Nørskov, J. (2017). Exploring the limits: A low-pressure, low-temperature Haber–Bosch process.
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