Corrosion behavior of co-gasification slag of furfural residue and coal on alumina-silica refractories

作     者：MA Xiaotong WANG Zhigang LU Hao LIU Wei WANG Yanxia ZHAO Jiangshan SUN Lingmin YAN Jingchong ZHUANG Shujuan LI Huaizhu KONG Lingxue 马晓彤;王志刚;鲁浩;刘伟;王烟霞;赵江山;孙领民;颜井冲;庄淑娟;李怀柱;孔令学

作者机构：College of Chemistry and Chemical EngineeringDezhou UniversityDezhou 253023China School of Chemistry and Chemical EngineeringShandong University of TechnologyZibo 255000China State Key Lab of Coal ConversionInstitute of Coal ChemistryChinese Academy of SciencesTaiyuan 030001China School of Chemistry&Chemical EngineeringAnhui University of TechnologyMa’anshan 243002China 

出 版 物：《燃料化学学报（中英文）》 (Journal of Fuel Chemistry and Technology)

年 卷 期：2024年第52卷第10期

页      面：1387-1397页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 

基　　金：Shandong Province Natural Science Foundation,China(ZR2020KB014,ZR2022QB206) the National Natural Science Foundation of China(22178001) Anhui Provincial Natural Science Foundation(2308085Y19) Research Project for Outstanding Youth of Department of Education of Anhui Province(2022AH030045) 

主　　题：furfural residue co-gasification slag refractory corrosion 

摘      要：Gasification of furfural residue with coal can realize its efficient and clean *** the high alkali metal content in furfural slag is easy to cause the corrosion of gasifier *** gasification coals with different silica alumina ratio and a furfural residue were selected in the *** effects of furfural residue additions on corrosion of silica brick,corundum brick,high alumina brick and mullite brick were investigated by using XRD,SEM-EDS and Factsage Software,and the corrosion mechanism was *** increasing furfural residue addition,the permeability of the slags to high-aluminium-bearing refractories first decreases and then increases,while the permeability on silica brick shows a slight decrease ***(KAlSi_(2)O_(6))with high-melting temperature is generated from the reaction of K_(2)O and SiO_(2)in slag with Al_(2)O_(3)in refractories after furfural residue is added,which hinders the infiltration of slag in ***(KAlSiO_(4))of low-melting point is formed when K_(2)O content increases,and this contributes to the infiltration of slag in *** acid-base reaction between slag and silica brick is distinctly occurred,more slag reacts with SiO_(2)in the silicon brick,resulting in a decrease in the amount of slag infiltrating into the silicon brick as furfural residue is *** corrosion of silica brick is mainly caused by the acid-base reaction,while the corrosion of three alumina based refractory bricks of corundum,mullite and high alumina brick is determined by slag infiltration.A linear correlation between the percolation rate and slag viscosity is established,the slag permeability increases with decreasing viscosity,resulting in stronger permeability for the high Si/Al ratio slag with lower viscosity.