添加剂改性对催化裂化油浆静电分离的影响

发布时间：2018-03-30 17:22

本文选题：静电分离　切入点：添加剂改性　出处：《化工进展》2017年09期

【摘要】：为提高催化裂化油浆的静电分离效果,对一级静电后的油浆经过改性之后再进行二级静电脱固。通过比较4种添加剂加入后的静电脱固效果,发现介电常数较高、导电率较低的添加剂A最优。经过对加入添加剂后静电分离实验条件的优化,确定了添加剂改性时静电分离的最优实验条件。与不进行改性相比,改性后的脱固效率提高了21%,净化油浆催化剂颗粒含量低于10μg/g。对固体颗粒的介电常数进行测定,利用光学显微观察、能谱分析及红外光谱仪对静电前后油浆中剩余固体颗粒的物理状态及物质组成进行了观察,分析发现向油浆中加入添加剂A之后再进行静电分离,可以使净化油浆中的固体颗粒含量减小,介电常数增加,并且添加剂对油浆中的催化剂颗粒作用比较明显。
[Abstract]:In order to improve the electrostatic separation effect of FCC slurry, the slurry after the first grade static electricity was modified and then the second order electrostatic desorption was carried out. By comparing the electrostatic desorption effect of the four additives, it was found that the dielectric constant was higher. By optimizing the experimental conditions of electrostatic separation after adding additives, the optimum experimental conditions of electrostatic separation when the additives are modified are determined. After modification, the desorption efficiency was increased by 21%, and the content of catalyst particles in purified slurry was less than 10 渭 g / g. The dielectric constant of solid particles was measured and observed by optical microscopy. The physical state and composition of residual solid particles in slurry before and after static electricity were observed by energy spectrum analysis and infrared spectrometer. It was found that additive A was added to the slurry before electrostatic separation. It can reduce the content of solid particles and increase the dielectric constant in the purified slurry, and the effect of additives on the catalyst particles in the slurry is obvious.
【作者单位】：中国石油大学(华东)化学工程学院重质油国家重点实验室;
【基金】：中国石油天然气股份有限公司资助项目(PRIKY16066) 山东省重点研发计划(2017GGX70108) 重质油国家重点实验室自主研究课题(SLKZZ-2017011)
【分类号】：TE624.41

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