Document Type : Research Article

Authors

1 Department of Renewable Energy Engineering, University of Isfahan, Isfahan, Iran

2 Department of Renewable Energy Engineering, University of Isfahan, Isfahan, Iran.

Abstract

The amine regenerator of acid removal unit in South Pars Gas Complex, Assalouyeh, Iran was modeled. This model was fitted to assess the large scale columns and allow application of solar thermal energy for production of low pressure steam. Heat transfer fluids including Therminol oil, sulfur, or salt melt could be applied to yield thermal energy from a solar collector and to store and transfer it to the reboiler of columns. The Angstrom model was adopted here to simulate solar irradiance. Solar irradiance data for the city of Assalouyeh, during the years of 2009-2014, were collected and applied. The results indicated that based on a reboiler duty of around 21.8 MW, a solar collector area of 148,000 m2 was required with a mass of heat transfer and storage medium of 1247255 kg oil, 1787732 kg salt melt and 3803686 kg sulfur, respectively. This model was applied as an analytical tool to explore and describe the following two problems encountered during real plant operation: fouling in the amine heat exchangers and increasing regenerator pressure. 

Keywords

1.     White, D.C., "Optimize energy use in distillation", American Institute of  Chemical Engineers,  Vol. 108, (2012), 37-42.
2.     Tora, E.A., El-Halwagi, M.M., "Integration of Solar Energy into Absorption Refrigerators and Industrial Processes", Chemical Engineering and Technology, Vol. 33, No. 9, (2010), 1495-1505.
3.     Al-Hasnawi, H., "Solar Heat in Industrial Processes: Integration of Parabolic Trough Solar Collectors in Dairy Plants and Pharmaceutical Plants", Master’s thesis, University of UMEA (2015).
4.     Pendya, J.D., "Adiabatic gas absorption and stripping with chemical reaction in packed towers", Chemical Engineering Communications, Vol. 19, (1983), 343-361.
5.     Pacheco, M.A., Rochelle, G.T., "Rate-based modeling of reactive absorption of CO2 and H2S into aqueous methyl-diethanolamine", Industrial and Engineering Chemistry Research, Vol. 37, (1998), 4107-4117.
6.     Bolhar, N., Friedl, A., Koss, U., Tork, T., "Modeling selective H2S absorption and desorption in an aqueous for Australia MDEA-solution using a rate-based non-equilibrium approach", Chemical Engineering and Processing: Process Intensification, Vol. 43, No. 6, (2004), 701-715.
7.     Gabrielsen, J., Michelsen, M.L., Stenby, E.H., Kontogeorgis, G.M., "Modeling of CO2 absorber using an AMP solution", A.I.Ch.E. Journal, Vol. 52, (2006), 3443-3451.
8.     Godini, H.R., Mowla, D., "Selective study of H2S and CO2 absorption from gaseous mixtures by MEA in packed beds", Chemical Engineering Research and Design, Vol. 86, No. 4, (2008), 401-409.
9.     Mostajeran Goortani, B.,  Gaurav, A., Deshpande, A., Ng, F.T.T., Rempel, G.L., "Production of isooctane from isobutene: energy integration and carbon dioxide abatement via catalytic distillation", Industrial and Engineering Chemical Research, Vol. 54, No. 14, (2015),  3570-3581.
10.   Khan, A., Halder, G.N., Saha, A.K., "Comparing CO2 removal characteristics of aqueous solutions of mono-ethanolamine, 2-amino-2-methyl-1-propanol, methyl-diethanolamine and piperazine through absorption process", International Journal of  Greenhouse Gas Control, Vol. 50, (2016), 179-189.
11.   Yu, J., Wang, S., Yu, H., "Experimental studies and rate-based simulations of CO2 absorption with aqueous ammonia and piperazine blended solution", International Journal of Greenhouse Gas Control, Vol. 50, (2016), 135-146.
12.   Spek van der, M., Arendsen, R., Ramirez, A., Faaij, A., "Model development and process simulation of post-combustion carbon capture technology with aqueous AMP/PZ solvent", International Journal of Greenhouse Gas Control, Vol. 50, (2016), 176-199.
13.   Sherwood, T.K., Holloway, F.A.L., "Performance of packed towers liquid film data for several packings", Transactions of the American Institute of Chemical Engineers, Vol. 36, (1940), 39-70.
14.   Onda, K., Takeuchi, H., Okumoto, Y., "Mass transfer coefficients between gas and liquid phases in packed columns", Journal of Chemical Engineering of Japan, Vol. 1, No. 1, (1968), 56-62.
15.   Kim, S., Deshusses, M.A., "Determination of mass transfer coefficients for packing materials used in bio-filters and bio-trickling filters for air pollution control", Chemical Engineering Science, Vol. 63, No. 4, (2007), 856-861.
16.   Scheffe, R.D., Weiland, R.H., "Mass-transfer characteristics of valve trays", Industrial and Engineering Chemical Research, Vol. 26, No. 2, (1987), 228-236.
17.   Goortani, B.M., Heidari, H., "Advanced modeling of CSP plants with sensible heat storage: instantaneous effects of solar irradiance", International Journal of Renewable Energy Research, Vol. 7, No. 3, (2017), 1419-1425.
18.   Zhang, J., Zhao, L., Deng S., Xu, W., Zhang, Y., "A critical review of the models used to estimate solar radiation", Renewable and Sustainable Energy Reviews, Vol. 70, (2017), 314-329.
19.   Mobtaker, H.G., Ajabshirchi, Y., Ranjbar, S.F., Matloobi M., Taki, M.,  "Estimation of Monthly Mean Daily Global Solar Radiation in Tabriz Using Empirical Models and Artificial Neural Networks", Journal of Renewable Energy and Environment, Vol. 3, No. 3, (2016), 21-30.
20.   Lashkar Ara, A., Hosseini, R., Bagheri Tolabi, H., "Estimation of Global Solar Irradiance Using a Novel Combination of Ant Colony Optimization and Empirical Models", Journal of Renewable Energy and Environment, Vol. 3, No. 3, (2016), 59‐66.
21.   Yaghoubi, M.A., "Further data on solar radiation in Shiraz, Iran", Renewable Energy, Vol. 7, No. 4, (1996), 393-399.
22.   Watanabe, T., Oishi, Y., Nakajima, T.Y., "Characterization of surface solar-irradiance variability using cloud properties based on satellite observations", Solar Energy, Vol. 140, (2016), 83-92.
23.   Stefu, N., Paulescu, M., Blaga, R., Calinoiu, D., Pop, N., Boata, R., Paulescu, E., "A theoretical framework for Ångström equation: Its virtues and liabilities in solar energy estimation", Energy Conversion and Management, Vol. 112, (2016), 236-245.
24.   Vakili, M., Sabbagh, S.R., Khosrojerdi, S., Kalhor, K., "Evaluating the effect of particulate matter pollution on estimation of daily global solar radiation using artificial neural network modeling based on meteorological data", Journal of Cleaner Production, Vol. 141, (2017), 1275-1285.
25.   Peng, D.Y., Robinson, D.B., "A New Two-Constant Equation of State", Industrial and Engineering Chemistry: Fundamentals, Vol. 15, (1976), 59-64.
26.   Wilke, C.R., Chang, P., "Correlation of diffusion coefficients in dilute solutions", A.I.C.H.E. Journal, (1955), 264-270.
27.   Harmens, A., Knapp, H., "Three parameter cubic equation of state for normal substances", Industrial and Engineering Chemistry Fundamentals, Vol. 19, (1980), 291-294.
28.   Barbero, R., Rovira, A., Montes, M.J., Martínez Val, J.M., "A new approach for the prediction of thermal efficiency in solar receivers", Energy Conversion and Management, Vol. 123, (2016), 498-511.
29.   Cocco, D., Serra, F., "Performance comparison of two tanks direct and thermocline thermal energy storage system for 1MWe class concentrating solar power plants", Energy, Vol. 81, (2015), 526-536.
30.   Bird, R.B., Stewart, W.E., Lightfoot, E.N., "Transport Phenomena", (1960).