新型多孔吸附剂的研制及其对劣化矿物变压器油再生试验的研究

Preparation of New Porous Adsorbent and Its Regeneration Test to Degraded Mineral Transformer Oil

采用低温水热合成法研制了一种多孔吸附剂,与801吸附剂、硅胶、活性氧化铝和13X分子筛进行劣化矿物变压器油再生对比试验,采用红外光谱分析该多孔吸附剂再生后油液的组成变化情况。结果表明:该吸附剂具有β沸石特征衍射峰,孔径为0.8~1.0 nm,粒径主要分布在0.7~0.9μm,比表面积高达680 m2/g,SiO2与Al2O3摩尔比为3∶1~5∶1,具有强极性和选择性吸附作用。该多孔吸附剂的吸附能力优于801吸附剂、硅胶、活性氧化铝和13X分子筛,可以高效吸附变压器油劣化产生的不饱和烃类物质,且不损伤油品的基本成分。

A kind of porous adsorbent was developed by low temperature hydrothermal method,and it was compared with 801 adsorbent,silica gel,activated aluminum oxide,and 13X molecular sieve through the regeneration tests of degraded mineral transformer oil.The composition change of oil after regenerated by the adsorbent were analyzed by infrared spectrum.The results show that the adsorbent has the characteristic diffraction peak ofβzeolite,the aperture of the adsorbent is 0.8-1 nm,the particle size is mainly 0.7-0.9μm,the specific surface area reaches up to 680 m~2/g,the molar ratio of Si and Al is 3:1-5:1,and it has strong polarity and selective adsorption.The adsorptive capacity of the porous adsorbent is stronger than 801 adsorbent,silica gel,activated aluminum oxide,and 13X molecular sieve.It can efficiently adsorb the unsaturated hydrocarbons from degradation transformer oil without damaging the basic components of the oil.