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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 of β zeolite, the aperture of the adsorbent is 0.8-1 nm, the particle size is mainly 0.7-0.9 μm, the specific surface area reaches up to 680 m2/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.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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