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Characterization of the Tunisian petroleum refineries caustic effluent
Applied Petrochemical Research Pub Date : 2020-11-05 , DOI: 10.1007/s13203-020-00257-5
Aymen Souilhi , Salma Besbes Hentati , Mohamed Rzaigui

A heterogeneous spent soda effluent generated from Tunisian petroleum refineries has been filtrated and separated in four solid fractions with a particle diameter of 160 to 100, 100 to 40, 40 to 16 and 16 to 10 µm and the fifth one with diameters < 10 µm obtained after total evaporation of the remained filtrate. Spectroscopic characterizations of the condensed phases by means of X-ray induced photoelectron and IR absorption, as well as pH-metry, potentiometry and stationary voltammetry at Ag2S/Ag electrode studies of the filtrate, show that the whole of the separated fractions contain Na2S, NaHS, C2H5SNa, Na2S2O3, Na2SO3 and methyl, ethyl and propyl mercaptans.



中文翻译:

突尼斯炼油厂苛性废水的表征

突尼斯炼油厂产生的非均质废碱废水经过过滤并分离成粒径为 160 至 100、100 至 40、40 至 16 和 16 至 10 µm 的四种固体部分,并获得直径 < 10 µm 的第五种固体部分剩余滤液完全蒸发后。通过 X 射线诱导光电子和红外吸收对凝聚相进行光谱表征,以及对滤液进行 pH 测定、电位测定和 Ag 2 S/Ag 电极固定伏安法研究,结果表明,整个分离的级分含有Na 2 S、NaHS、C 2 H 5 SNa、Na 2 S 2 O 3、Na 2 SO 3和甲基、乙基和丙基硫醇。

更新日期:2020-11-05
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