The Scale Formation of Barite (BaSO4) from Laminar Flowing Water in The Presence of Tartaric Acid and Ba2+ Concentration Variation of Solution

4th International Conference on Advanced Materials Science and Technology

Fatra, F.^1 ; Ivanto, G.^1 ; Dera, N.S.^1 ; Muryanto, S.^1,2 ; Bayuseno, A.P.^1

Department of Mechanical Engineering, University of Diponegoro, Tembalang Campus, Semarang

50275, Indonesia^1

Department of Chemical Engineering, UNTAG University, Bendhan Dhuwur Campus, Semarang

50233, Indonesia^2

关键词: Barium chloride;    Concentration variation;    Equi-molar solution;    Flowing waters;    Ion conductivities;    Phase identification;    Scale formation;    Tartaric acids;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/202/1/012014/pdf
DOI  :  10.1088/1757-899X/202/1/012014

来源: IOP

【 摘 要 】

The barite (BaSO4) scale is a mineral deposit that can be precipitated during the process of drilling oil and gas in the offshore. Deposite scale in pipes can cause a narrowing of the diameter of pipes, and can reduce water flowing in the pipe. The aim of this study is to investigation the effect of the tartaric acid additive and Ba2+concentration on the growth o the scale formation of barite in the laminar flow of the piping system. Solution forming barite crystal was prepared by mixing equimolar solutions of barium chloride (BaCl2) and sodium sulfate (Na2SO4) with concentration variations of Ba2+of 3000, 3500, 4000, 4500, and 5000 ppm. The flow rate of solution is 40 ml/min at temperature of 50 °C. Various concentrations of tartaric acid (C4H6O6) of 0 ppm, 5 ppm and 10 ppm were added to the solutions. The formation of barite from the solution was observed by ion conductivity measurement. The obtained barite crystals before and after adding tartaric acid were dried and characterized by using SEM/EDX for morphology and elemental analysis, and XRD for phase identification. The SEM results show that the morphology of the crystals are star-like particles, while XRD analysis confirmed that the barite crystals were produced during the experiments are high purity. Moreover, the tartaric acid can inhibit the crystal growth of barite.