Preconceptions for accident handling in abnormal conditions of atmospheric and vacuum distillation
Thread Content
The installation is about to start operation, and due to a lack of working experience, it is necessary to find experts who can provide guidance on emergency response plans for abnormal situations in vacuum distillation processes, such as power outages, loss of air supply, or loss of steam supply. The more detailed the information, the better! ! ! ! Those with detailed information can send it to xyf0523@126.com; scoring will be given priority!
There are procedures in place for dealing with power outages, loss of air supply, loss of steam, and water shortages; these procedures should be referred to. During the startup process, instrument failures are a major concern, so one should not rely too much on them. The liquid level at the bottom of the tower can easily become too high, resulting in black oil being discharged from the top of the tower. Therefore, it is necessary to closely monitor changes in the inlet pressure of the pump at the bottom of the tower. The temperatures of the various feed streams entering the distillation tower need to be balanced, while the feed volumes should not be balanced in order to avoid flow imbalances that could cause vapor blockages. It is also important to keep the crude oil pressure within the maximum allowable operating range. When lighting the heater and raising its temperature, it is necessary to properly control the three valves and one valve assembly to prevent the flame from going out. Pumps must have water drained from them before they can be started. These points are crucial for the success of the startup process