In April 2021, a continuous reforming unit was revamped with capacity expansion, and a high-efficiency separator was added at the top of the reaction product separator (V201). In August 2024, the inlet knockout drum (V202) of the hydrogen booster (C202) suffered a serious liquid carryover situation. As ammonium salt and catalyst dust blocked the foam screen in front of the high-efficiency separator, the pressure difference between the inlet and outlet of V201 was too large, resulting in the liquid phase at the bottom of V201 entering the inlet of the circulating hydrogen compressor (C201) pipeline and V202 through the downcomer. Adding a horizontal one-way valve in the downcomer of the high-efficiency separator can solve the problem of liquid streaming due to large pressure difference. The use of baffled fins instead of foam screen can increase the adhesion area of ammonium salt. The ammonium salt just formed on the surface of the fins and the deposited catalyst dust can be broken and carried out of the high-efficiency separator through high-speed droplets, so as to stabilize the pressure difference and prolong the operation cycle of the unit.

margin:0px 0px 16px, padding:0px, border:0px, font-size:16px, vertical-align:baseline, color:rgba(0, 0, 0, 0.9), background-color:#FFFFFF, "> continuous reforming unit, hydrogen booster, inlet carryover liquid, product separator, high-efficiency separator, condensate, ammonium chloride, catalyst dust

2021年4月，某连续重整装置扩能改造，在反应产物分离器（V201）顶部增设高效分离器。2024年8月，氢气增压机（C202）的入口分液罐（V202）出现严重带液的问题。由于铵盐和催化剂粉尘堵塞高效分离器前部泡沫网，使V201进、出口压差过大，导致V201罐底液相通过降液管进入循环氢压缩机（C201）管线入口及V202内。在高效分离器降液管增设水平单向阀，可解决因压差大而串液的问题；采用折流翅片代替泡沫网，可增大铵盐附着面积，通过高速液滴将翅片表面形成的铵盐和沉积的催化剂粉尘击碎、携带出高效分离器，可稳定压差，延长装置的运行周期。

margin:0px 0px 16px, padding:0px, border:0px, font-size:16px, vertical-align:baseline, color:rgba(0, 0, 0, 0.9), background-color:#FFFFFF, "> 连续重整装置, 氢气增压机, 入口带液, 产物分离器, 高效分离器, 凝液, 氯化铵, 催化剂粉尘