Synthesis And Characterization Of Methacrylate Based Polymeric Additives For Crude Petroleum Oil
Wax deposition in crude oil especially at low temperature causes serious problem during its storage and transportation since this deposited wax gradually immobilizes the oil. Thus, waxy crude oils have high pour point resulting lots of handling problems. To solve this problem, a number of flow improvers (FI) or pour point depressants (PPD) have been prepared. But still it is a challenging aspect of this research area to find out the perfect chemistry with an improved efficiency and cost effective additives over the conventional one. In this context and in continuation of our effort for the development of additive systems for lube and crude oils, homo polymer of decyl methacrylate and its copolymers with styrene and vinyl acetate at different percentage composition in the presence of benzoyl peroxide (BPO) as initiator have been prepared. All the prepared polymers are characterised by FT-IR, NMR and Gel Permeation Chromatography (GPC). The prepared additives showed excellent performance as flow improver (FI) or pour point depressant (PPD) in crude oil.
Atta, A. M., Al-Shafey, H. I., and Ismail, E. A. (2011). Influence of ethylene acrylic alkyl ester copolymer wax dispersants on the rheological behaviour of Egyptian crude oil. J. Dispersion Sci. Technol. 32:1296-1305.
Al-Shafey, A. H. I., Hashem, A. I., Abdel Hameed, R. S., and Dawood, E. A. (2011). Studies on the Influence of long chain acrylic esters co-polymers grafted with vinyl acetate as flow improver additives of crude oils. Adv. Appl. Sci. Res. 2 (5): 476-489.
Behbahani, T. J. (2014). Experimental investigation of the polymeric flow improver on waxy oils. Petroleum and Coal. 56(2):139-142.
Borthakur, A., Chanda, D., Dutta Choudhury, S. R., Rao, K. V., and Subrahmanyam, B. (1996). Alkyl fumarate − vinyl acetate copolymer as flow improver for high waxy Indian crude oils. Energy Fuels 10:844−848.
Castro, L. V., Flores, E. A., and Vazquez, F. (2011). Terpolymers as flow improvers for Mexican crude oils. Energy Fuels 25:539−544.
Chanda, D., Sarmah, A., Borthakur, A., Rao, K. V., Subrahmanyam, B., and Das, H. C. (1998). Combined effect of asphaltenes and flow improvers on the rheological behaviour of Indian waxy crude oil. Fuel 77:1163−1167.
Chen, Z., Wang, X., Zhang, H., Yang, C., and Shan, H. (2014). A study on the interaction of crude oil waxes with polyacrylate pour point depressants by Monte Carlo Simulation. Pet. Sci. Technol. 32:2151–2157.
Deshmukh, S., and Bharambe, D. (2011). Wax control by designing polymeric pour point depressant additives for Indian crude oil. J. Dispersion Sci. Technol. 32:291−297.
El-Gamal, I. M., Gad, E. A. M., Faramawi, S., and Gobiel, S. (1992). Flow improvement of waxy western desert gas oil. J. Chem. Technol. Biotech. 55:123–130.
El-Gamal, I. M., Ghuiba, F. M., El-Batanoney, M. H., and Gobiel, S. (1994). Synthesis and evaluation of acrylate polymers for improving flow properties of waxy crudes. J. Appl. Polym. Sci. 52:9 −19.
Ercegkuzmic, A. E., Radoševic, M., Bogdanic, G., Srica, V., and Vukovic, R. (2008). Studies on the influence of long chain acrylic esters polymers with polar monomers as crude oil flow improver additives. Fuel 87:2943−2950.
Frohlich, A., and Rice, B. (2005). Evaluation of camelina sativa oil as a feedstock for biodiesel production. Ind. Crops Prod. 21(1):25-31.
Ghosh, P., Das, M., Upadhyay, M., Das, T., and Mandal, A. (2011). Synthesis and evaluation of acrylate polymers in lubricating oil. J. Chem. Eng. Data 56:3752–3758.
Guo, X., Pethica, B. A., Huang, J. S., Adamson, D. H., and Prud'homme, R. K. (2006). Effect of cooling rate on crystallization of model waxy oils with microcrystalline poly (ethylene butane). Energy Fuels 20: 250-256.
Huang, Z. Y., Lee, H. S., Senra, M., and Fogler, H. S. (2011). A fundamental model of wax deposition in Subsea oil pipelines. Am. Inst. Chem. Eng. J. 57:2955−2964.
Huiyang, Z., Weibang, Z., and Zhuomei, L. (1991). Synthesis of polymers with long side chain of N-alkyl esters and their affects on pour-point depression of oil. J. Appl. Polym. Sci. 43(5): 919 – 924.
Jordan, E. F., Smith, S., Ruth, D. Z., and Wrigley, A. N. (1978). Thermodynamic parameters for side chain crystallinity in pour point-modified blends containing n-octadecyl acrylate. J. Appl. Polym. Sci. 22:1547.
Jung, K. M., Chun, B. H., Park, S. H., Lee, C. H., and Kim, S. H. (2011). Synthesis of methacrylate copolymers and their effects as pour point depressants for lubricant oil. J. Appl. Polym. Sci. 120:2579−2586.
Kumar, M. N. S. (1989). Review on polymeric and copolymeric pour point depressants for waxy crude oils and studies on Bombay high crude oil. Quart J. Technol. 15:47- 62.
Machado, A. L. C., Lucas, E. F., González, G. (2001). Poly (ethylene-co-vinyl acetate) (EVA) as wax inhibitor of a Brazilian crude oil: oil viscosity, pour point and phase behaviour of organic solutions. J. Pet. Sci. Eng. 32: 159−165.
Qian, J. W., Qi, G. R., Ding, X. Z., and Yang, S. L. (1996). Assessment of polymer flow improvers for crude oil by viscometry. Fuel 75(3):307-312.
Schwahn, D., Richter, D., Lin, M., and Fetters, L. J. (2002). Cocrystallization of a poly (ethylene−butene) random copolymer with C24 in n-decane. Macromolecules 35: 3762−3768.
Soldi, R. A., Oliveira, A. R. S., Barbosa, R. V., and César-Oliveira, M. A. F. (2007). Polymethacrylates: Pour point depressants in diesel oil. Eur. Polym. J. 43: 3671−3678.
Taraneh, J. B., Rahmatollah, G., Hassan, A., and Alireza, D. (2008). Effect of wax inhibitors on pour point and rheological properties of Iranian waxy crude oil. Fuel Process. Technol. 89:973−977.
Wu, Y. M., Ni, G. D., Yang, F., Li, C. X., and Dong, G. L. (2012). Modified maleic anhydride co-polymers as pour-point depressants and their effects on waxy crude oil rheology. Energy Fuels 26:995−1001.
Xu, J., Qian, H., Xing, S., Li, L., and Guo, X. (2011). Synthesis of poly(maleic acid alkylamide-co-r-olefin-co-styrene) co-polymers and their effect on the yield stress and morphology of waxy gels with asphaltene. Energy Fuels 25:573–579.
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