摘要
通过浸渍法制备Pt-W/Al_(2)O_(3)催化剂,以甲酸铵为氢供体、乙醇为溶剂对老化变压器油进行转移加氢以实现变压器油的回收再利用。得益于Pt-W/Al_(2)O_(3)中丰富的酸性位点,与Pd/C、Pd/Al_(2)O_(3)、Pt/Al_(2)O_(3)等单效催化剂相比,本研究所制备的催化剂性能更优。采用响应面法对工艺条件进行优化并作回归分析,结果表明最优工艺条件为甲酸铵用量39%,催化剂用量2.35%,温度69℃,经验证该模型置信度良好。在此条件下的氢化变压器油脱色率和脱酸率分别达到98.1%和97.4%,主要电气性能恢复至国标新油水平。
Pt-W/Al_(2)O_(3) were synthesized by wet-impregnation method to catalyze transfer hydrogenation of aged transformer oil,with which ammonium formate as the hydrogen donor and ethanol as the solvent,to realize the recycling of transformer oil.Attribute to the abundant acidic sites in Pt-W/Al_(2)O_(3),the Platinum-Tungsten dual-acting catalysts demonstrated superior performance to the single-acting catalysts such as Pd/C,Pd/Al_(2)O_(3) and Pt/Al_(2)O_(3).The process was optimized by applying response surface methodology(RSM)through regression analysis.The confidence of model has been verified.The results showed that the optimal process conditions were 39%of ammonium formate,2.35%of catalyst,and 69℃of temperature.The decolorization rate and deacidification rate of hydrogenated transformer oil with these conditions reached 98.1%and 97.4%,respectively.The main properties of hydrogenated oil can reach the new oil indexes stipulated by the national standard.
作者
石羽煣
付高节
谢晨艳
沈彬
SHI Yurou;FU Gaojie;XIE Chenyan;SHEN Bin(School of Chemistry and Chemical Engineering,Southeast University,Nanjing 211189,China)
出处
《化工时刊》
CAS
2024年第3期9-14,共6页
Chemical Industry Times
