STUDY OF CORROSION PERFORMANCE OF METALS IN BIOMASS OIL
The biomass-oil obtained by the fast pyrolysis of straw is an acidic fuel with pH value of 3.4-3.5. It contains a large amount of organic acids, phenol and water. Its application in varied industrial fields may cause corrosion to different metals. In the present study, the corrosion performances of four kinds of metal (iron, lead, steel and copper) in biomass-oil obtained by the fast pyrolysis of straw were studied under different temperatures and different test periods using a simulation corrosion evaluation apparatus of internal-combustion engine oil. The corroded metal surface were observed by optical micrography and analyzed by X-ray photoelectron spectroscopy (XPS). The experimental results showed that iron and lead were corroded seriously by biomass-oil, while the corrosion of AISI 1045 steel and copper was much smaller. Layers of oxide and/or hydroxide were formed on these metal surfaces according to surface analysis. However, these layers cannot protect the underlying metals against further oxidation. Because of its noble character, corrosion of copper is slow.
Corrosion Metal Biomass-oil
Xian-guo HU Li-li ZHOU Qiong-jie WANG Yu-fu XU
Institute ofTribology,Hefei University of Technology,Hefei 230009,China
国际会议
广州
英文
1166-1172
2008-12-03（万方平台首次上网日期，不代表论文的发表时间）