Detection of Total Corrosive Sulfur in Transformer Oil

Autor:	Zhou Ting, Hui Qian, Haibo Huang, Tao Wan, Shang-kun Gong, Huisheng Ye
Rok vydání:	2019
Předmět:	chemistry.chemical_compound Materials science chemistry Recovery rate Transformer oil Inductively coupled plasma atomic emission spectroscopy Ion chromatography chemistry.chemical_element Sulfate Sulfur Copper Nuclear chemistry Corrosion
Zdroj:	IOP Conference Series: Earth and Environmental Science. 295:042088
ISSN:	1755-1315 1755-1307
DOI:	10.1088/1755-1315/295/4/042088
Popis:	The quantitative analysis methods of the total corrosive sulfur (TCS) in transformer oils were realized using copper powder corroding technique. In this technique, excess copper powder reacted with insulating oils at 150°C for 12 hours to form corrosion product (CU2S). Then, Cu2S was oxidized to CuSO4 2−, and finally dissolved to sulfate solution. There are three methods to test the amount of TCS. SO4 2− solution tested by ion chromatography (IC) or Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES). Moreover, adopted ICP to test total sulfur (TS) in oils before and after corrosion reaction, and the difference value is the content of TCS. Comparing with these methods, it was found that ICP detection of total sulfur (TS) in oils could achieve excellent linearity. The correlation coefficients is R2≥0.999, and the recovery rate is 98.4%∼103.4%.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::95f359b70b2aa6e0a2ec6d60e40deabf https://doi.org/10.1088/1755-1315/295/4/042088 Zobrazit plný text záznamu