介绍了中国石化扬子石油化工股份有限公司炼油厂焦化全馏分油加氢精制装置高压分离系统、分馏塔系统等改造情况。
Revamping of the high-pressure separation system and the fractionating tower in the hydrofining unit for full range coker distillates by Yangzi Petrochemical Company are introduced.
分馏系统加注油浆防垢剂及控制合适的外甩油浆量和分馏塔底温度，可以有效防止结焦。
Coking in the fractionation system has been resolved by injecting slurry antifoulant and controlling the amount of slurry running down and the bottom temperature.
结果表明，使用RIPP- 1 42 1油浆阻垢剂能减轻分馏塔和油浆系统结垢，阻止污垢在设备上的沉积，可大大延长运转周期；
The results showed that RIPP 1421 was better than the original used antifoulants. It can lighten the fouling in fractionator and slurry system, and extend the run cycle.
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