关键词: 抗燃油, 酸值, 劣化产物, 催化劣化, 抗老化性能, 选择性强极性硅铝吸附剂

Abstract: In a power plant of Gansu province, the acid value exceeded the relevant standard again shortly after twice of fire-resistant oil change for the governor system. In order to solve this problem, this paper studies the effects of temperatures and deteriorated products on the acid value of fire-resistant oil, and conducts test study on the regeneration effects of deteriorated oil treated by different media. The results show that the deteriorated products remaining in the oil system accelerates the deterioration, which is the major reason for the acid value exceeding the standard shortly after the oil change. The selective strong polar silicon aluminum adsorbent is capable of removing the deteriorated products from the oil system thoroughly such that the acid value of the processed oil is even better than that of fresh oil, which exhibits excellent aging-resistant performance. Therefore, the power plant replaced the filter element with the selective strong polar silicon aluminum absorbent for the online oil purification device. In this way the problem has been completely resolved.

Key words: fire-resistant oil, acid value, deteriorated product, catalysis deterioration, ageing resistance, selective strong polar silicon aluminum adsorbent