壳聚糖聚乙二醇钠材料的制备及其对变压器油的脱硫研究

石油炼制与化工 ›› 2021, Vol. 52 ›› Issue (4): 70-76.

壳聚糖聚乙二醇钠材料的制备及其对变压器油的脱硫研究

陈虎剑^1,2,孟志飞¹,冯世荣¹,蔡楚岳¹,郑科旺¹,李伟¹,覃彩芹¹

1.湖北过程学院化学与材料科学学院 2.湖北大学材料与工程学院

收稿日期:2020-10-15 修回日期:2020-11-06 出版日期:2021-04-12 发布日期:2021-03-30
通讯作者: 郑科旺 E-mail:kewang1104@126.com
基金资助:
湖北省科技厅重大专项;孝感市自然科学基金;2020年大学生创新训练

PREPARATION OF CHITOSAN/ POLYETHYLENE GLYCOL SODIUM AND ITS APPLICATION IN TRANSFORMER OIL DESULFURIZATION

Received:2020-10-15 Revised:2020-11-06 Online:2021-04-12 Published:2021-03-30

摘要/Abstract

摘要： 以不同相对分子质量的聚乙二醇（PEG）和NaOH制备PEG-Na试剂，以PEG-400Na试剂和壳聚糖制备壳聚糖-PEG(Na)脱硫材料[CS-PEG(Na)]，向新变压器油中添加腐蚀性硫二苄基二硫醚（DBDS）制备试验用油，考察CS-PEG(Na)对试验用油中腐蚀性硫的脱除效果，得到最佳的反应条件为：CS-PEG(Na)添加量（w）20%，处理温度60 ℃，处理时间2 h。在最佳反应条件下，CS-PEG(Na)对试验用油中的腐蚀性硫几乎完全脱除。CS-PEG(Na)对废变压器油的脱硫效果与PEG-400Na试剂相当。与其他脱硫材料相比，CS-PEG(Na)对废变压器油中腐蚀性硫的脱除效果更好，腐蚀性硫的脱除率达到84.6%，脱硫处理后的废变压器油的电气性能略有下降。

关键词: 变压器油, 聚壳糖, 聚乙二醇, 脱硫率

Abstract: PEG-Na reagents were prepared by polyethylene glycol (PEG) with different molecular weights and NaOH. Chitosan-PEG (Na) desulfurization materials (CS-PEG (Na)) were prepared by PEG-400Na reagent and chitosan. The test sample with dibenzyl disulfide (DBDS) in the fresh transformer oil was prepared. The effect of CS-PEG (Na) on desulfurization of the corrosive sulfur in the test oil was investigated to obtain the best reaction conditions: the mass fraction of CS-PEG (Na) of 20%, the treatment temperature of 60℃, and the treatment time of 2 h. Under the optimal conditions, the corrosive sulfur in the test oil was almost completely removed by CS-PEG (Na). The desulfurization effect of CS-PEG (Na) for waste transformer oil was comparable to that of PEG-400Na reagent, but better than other desulfurizers, the removal rate of corrosive sulfur reached 84.6%. However, the electrical performance of waste transformer oil after desulfurization treatment decreased slightly.

Key words: transformer oil, chitosan, polyethylene glycol, desulfurization rate

陈虎剑孟志飞冯世荣蔡楚岳郑科旺李伟覃彩芹. 壳聚糖聚乙二醇钠材料的制备及其对变压器油的脱硫研究[J]. 石油炼制与化工, 2021, 52(4): 70-76.

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