高校化学工程学报Issue(6)：1422-1429,8.DOI:10.3969/j.issn.1003-9015.2015.06.020
生物质混煤燃烧过程中硫氯协同腐蚀特性研究
Study on Sulfur-Chlorine Synergistic Corrosion in Biomass and Coal Co-Firing
摘要
Abstract
A tube furnace system was employed to simulate biomass and coal co-firing processes, and sulfur-chlorine synergistic corrosion was investigated through a static corrosion weight gain method by changing composition and temperature. X ray diffraction (XRD) and different thermal analysis (DTA) were employed to study the reaction mechanism to provide theoretical supports for safe operation of boilers and effective use of biomass. The results indicate that the synergistic corrosion process shows a parabolic profile: the corrosion rate increases initially, and then gradually decreases. Meanwhile, SO2can significantly inhibit HCl corrosion and the change of HCl concentration has few effects on synergistic corrosion. Furthermore, the effect of temperature on synergistic corrosion follows Arrhenius law. Corrosion is strengthened with the existence of deposition, and the increment of SO2concentration might enhance the corrosion, which is due to the effect of sulfationin deposition and molten liquid corrosion, and HCl can also intensify the corrosion with the increment of molten liquid corrosion.关键词
生物质/煤/协同腐蚀/积灰Key words
biomass/coal/synergistic corrosion/deposition分类
能源科技引用本文复制引用
王永征,张科,姜磊,武岳,吕瑞杰,丁生平..生物质混煤燃烧过程中硫氯协同腐蚀特性研究[J].高校化学工程学报,2015,(6):1422-1429,8.基金项目
山东省自然科学基金资助项目(ZR2009FM052)；山东大学自主创新基金资助项目(2012ZD019)。 （ZR2009FM052）
