Analysis and solution of operation problems of high-temperature condensate system in shift conversion unit
Cause analysis was made on the problems in the shift conversion unit of the synthetic ammonia plant of CNOOC Huahe Coal Chemical Co.,Ltd.,such as low pressure of high-temperature condensate flash tank,high-frequency operation of high-temperature condensate pump,and boil off gas unable to be completely incorporated into the condensate stripping tower.Combined with the operation situation,through process operation adjustment and technical renovation measures such as introducing high-pressure nitrogen to increase the pressure of the flash tank,optimizing the heat tracing of condensate and boil off gas pipelines,and directly injecting low-pressure steam into the boil off gas pipeline,the problems in the high-temperature condensate system were solved.After the renovation,it not only saved energy and reduced consumption,but also reduced operating costs and operation risk of the unit.
shift conversion unithigh-temperature condensate systemcondensate flash tankhigh-temperature condensate pumpboil off gas
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