Experimental and Techno-Economic Analysis of Polybenzimidazole Thin-Film Membranes for Efficient Pervaporation Desalination of Produced Water

IF 4.4 2区 化学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Andrew J. Ruba, Prashant Sharan, Michael P. Dugas, Harshul V. Thakkar, Kathryn A. Berchtold and Rajinder P. Singh*, 
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引用次数: 0

Abstract

Produced water is a massive wastewater source generated by hydraulic fracturing during oil and gas extraction. Due to high salinity (3000 to >300,000 mg/L) and presence of organic (≤1000 mg/L) impurities, thermal- or membrane-based separation processes of produced water are very expensive and challenging. Elevated temperature membrane desalination processes can efficiently treat high-salinity produced water containing organic impurities, provided thermo-chemical robust membrane materials are developed. Here, a highly selective and dense polybenzimidazole (m-PBI) thin-film membrane was extensively evaluated with a simulated brine, representative of brine produced from the San Juan basin, and a real brine obtained from the Permian Basin to demonstrate its thermo-chemical robustness for the treatment of high-salinity produced water. The membrane showed extremely high stability in the brine solutions at elevated temperatures approaching 200 °C and 99.9% salt and organic rejection, producing high-purity distillate. A detailed techno-economic analysis was carried out for a multistage PBI membrane-based pervaporation process using experimentally obtained data scaled to industrial membrane thicknesses. A minimum cost of $3.49 m–3 was calculated for an 18-stage pervaporation system to treat produced water, which is 50% lower than that compared to commercial brine concentrator technology for produced water treatment. More efficient elevated temperature pervaporation desalination is achieved by higher operating temperatures enabled by the thermo-chemical durability of the PBI membranes providing opportunities for efficient heat recovery.

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来源期刊
CiteScore
7.20
自引率
6.00%
发文量
810
期刊介绍: ACS Applied Polymer Materials is an interdisciplinary journal publishing original research covering all aspects of engineering, chemistry, physics, and biology relevant to applications of polymers. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates fundamental knowledge in the areas of materials, engineering, physics, bioscience, polymer science and chemistry into important polymer applications. The journal is specifically interested in work that addresses relationships among structure, processing, morphology, chemistry, properties, and function as well as work that provide insights into mechanisms critical to the performance of the polymer for applications.
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