【摘要】 随着“油转化”趋势发展，原油直接制化学品技术迅速发展，但产生了含碱性催化剂的油浆，现有沉降剂无法对其中的固体颗粒进行有效脱除。采用聚醚为主体，在主链上引入羧基进而引入咪唑啉结构对聚醚的官能团进行修饰，合成了聚醚-咪唑啉絮凝剂，并通过核磁共振氢谱以及红外光谱对产物的结构进行了验证。以聚醚-咪唑啉絮凝剂为主剂与破乳剂复配为油浆沉降剂，通过油浆沉降试验考察聚醚-咪唑啉絮凝剂的构效关系以及复配沉降剂的脱固性能，确定最佳沉降条件为：主剂质量分数40%,加剂量(w)400μg/g,沉降温度100℃,沉降时间48 h,在此条件下的油浆脱固率不低于90%。该絮凝剂合成方法安全，复配条件简单，原料廉价易得，适合工业生产及应用。更多还原

【Abstract】 With the development of the trend of “oil refining to chemicals”,the technology of producing chemicals directly from crude oil is gradually replacing catalytic cracking technology, but it produces the slurry containing alkaline catalyst, which makes the existing settling agent unable to effectively remove solid particles from the oil slurry containing alkaline catalyst.The polyether-imidazoline flocculants were synthesized by introducing carboxyl groups and imidazoline structure into the main chain of polyether, and the structures of the products were characterized by nuclear magnetic resonance spectroscopy and infrared spectroscopy.The structure-activity relationship of polyether-imidazoline flocculant and the desolidification performance were investigated by oil slurry settling test.The optimal settling conditions were determined as follows: mass fraction of the main agent of 40%,the dosage of 400 μg/g, settling temperature of 100 ℃ and settling time of 48 h, and slurry desolidification rate was greater than 90%.The flocculant synthesis method was safe, the compounding conditions were simple, the raw material was cheap and easy to obtain, and the flocculant was suitable for industrial production and application.更多还原