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Abstract
In the oil and gas industry, a common problem is salt deposition on the walls of fluid flow processing equipment, especially on heat transfer surfaces and on the surfaces of evaporation equipment. This deposition is undesirable because it causes scale formation which can affect heat transfer as well as reduce efficiency and prevent flow in the process fluid. To overcome this, this research was used ethylene diamine tetra acetic acid (EDTA) as inhibitor calcium sulfate (CaSO4). The aim of the present study was to determine the effectiveness of EDTA in inhibiting the formation of calcium sulfate (CaSO4) scale.
Ethylene diamine tetra acetic acid (EDTA) as inhibitor calcium sulfate (CaSO4) with methods unseeded experiment and seeded experiment at temperature of 90 ℃ with variations in the concentration of the growth solution 0.1; 0.15; and 0.2 M and variations in inhibitor 5, 15, 25, 35, dan 45%. Results: Percent
effectiveness value obtained at growth solution concentration of 0.1; 0.15; 0,2 M and inhibitor concentration of 5% using the unseeded experiment method was 86.296%; 77.435%; 68.354%. Percent effectiveness value obtained at growth solution concentration of 0.1; 0.15; 0.2 M and inhibitor concentration of 5% using the seeded experiment method was 89.385%; 38.182%; 62.532%. The most effective percent effectiveness value obtained at growth solution concentration of 0.1 M and inhibitor concentration of 5% using the unseeded experiment method was 86.296%. The most effective percent effectiveness value obtained at growth solution concentration of 0.1 M and inhibitor concentration of 5% using the seeded experiment method was 89.385%.
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References
- Halimatuddahliana. (2013) Prevention of corrosion and scale in the petroleum production process. Research report. University of Northern Sumatra. 1-8.
- Khormali, A. and Petrakov, D.G. (2016) Laboratory investigation of a new scale inhibitor for preventing calcium carbonate precipitation in oil reservoirs and production equipment. Petroleum Science. 13. 320-327.
- Kumar, S., Naiya, T. K., and Kumar, T. (2018) Developments in oilfield scale handling towards green technology-a review. Journal of Petroleum Science and Engineering. 169 428-444
- Rabizadeh, T., Caroline, Reacock, and Liane G. B. (2014). Carboxilic acid : effective for calcium sulfate precipitation. Mineralogical Magazine. 78. 1465-1472.
- Suharso and Buhani. (2012). Scale management. Research institutions. Lampung University
- Suharso, Buhani, dan Aprilia, L. (2013) Influence of calix[4]arene derived compound on calcium carbonate (CaCO3) scale formation. Proceedings of the Semirata FMIPA Lampung University. 405-503.
References
Halimatuddahliana. (2013) Prevention of corrosion and scale in the petroleum production process. Research report. University of Northern Sumatra. 1-8.
Khormali, A. and Petrakov, D.G. (2016) Laboratory investigation of a new scale inhibitor for preventing calcium carbonate precipitation in oil reservoirs and production equipment. Petroleum Science. 13. 320-327.
Kumar, S., Naiya, T. K., and Kumar, T. (2018) Developments in oilfield scale handling towards green technology-a review. Journal of Petroleum Science and Engineering. 169 428-444
Rabizadeh, T., Caroline, Reacock, and Liane G. B. (2014). Carboxilic acid : effective for calcium sulfate precipitation. Mineralogical Magazine. 78. 1465-1472.
Suharso and Buhani. (2012). Scale management. Research institutions. Lampung University
Suharso, Buhani, dan Aprilia, L. (2013) Influence of calix[4]arene derived compound on calcium carbonate (CaCO3) scale formation. Proceedings of the Semirata FMIPA Lampung University. 405-503.