Optimization of progressive freezing on synthetic produced water by circular moving cylindrical crystallizer via Response Surface Methodology
Visualitza/Obre
Cita com:
hdl:2117/355857
Tipus de documentArticle
Data publicació2021-01-25
EditorMultidisciplinary Digital Publishing Institute (MDPI)
Condicions d'accésAccés obert
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continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
Treatment and disposal are two main approaches for water cycle management in the oil
and gas industry. Freeze concentration has been identified as one of the methods to separate water
from wastewater samples. The conventional method used for solution movement in progressive
freezing technique is stirring by a stirrer. However, the stirrer requires frequent maintenance as it
needs to be cleaned and requires longer cleaning time due to the complex structure of a stirrer. Thus,
the new solution movement for progressive freezing is proposed, which is circular moving
progressive freezing. This study aims to remove water from the wastewater sample (i.e., produced
water). To optimize and investigate the effect of coolant temperature, freezing time and rotation
speed, response surface methodology (RSM) was applied to determine the efficiency of the process
and central composite design (CCD) was used to design the experiment. From the results, the
optimum parameters were determined at the freezing time of 22.79 min, coolant temperature of
-14.89 °C and rotation speed of 59 rpm. To evaluate the accuracy of the optimization process, a
validation experiment was performed and water removal value of 89.67% was achieved.
CitacióAthirah, W. [et al.]. Optimization of progressive freezing on synthetic produced water by circular moving cylindrical crystallizer via Response Surface Methodology. "Crystals", 25 Gener 2021, vol. 11, núm. 103, p. 1-13.
ISSN2073-4352
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crystals-11-00103 version publicada.pdf | 1,074Mb | Visualitza/Obre |