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What is the process of oil and gas emissions in oil and gas recovery?

Views:1     Author:autower     Publish Time: 2019-08-26      Origin:http://www.autower.cn/

What is the process of oil and gas emissions in oil and gas recovery?

  As an environmentally-friendly and energy-saving device,oil and gas recovery not only saves resources,but also protects the ecological environment.It really brings great benefits to people.Let's take a look at the process of oil and gas emissions.

  Unloading stage:

  At present,the transportation of oil stored in the oil depot is mainly based on trains.During the unloading process,the oil and gas are in a negative pressure state,and the emissions are small and concentrated.If the instantaneous value of oil and gas emissions during the unloading process of the train is to reach the national standard,it is necessary to completely renovate the structure of the train oil tank and change it to the bottom unloading oil.however,it is obvious that the amount of renovation works is large and the cost is high,so it is difficult to implement.

  Oil storage stage:

  Volatilization of oil and gas at this stage is generally referred to as static storage loss or small breathing,and mainly refers to the respiratory loss caused by changes in the external environment such as wind speed,temperature and concentration.For the oil and gas emissions problem at this stage,the main measures currently adopted are to increase the sealing performance of the oil storage tank,and seal the oil and gas discharged from the small breathing into the oil tank to prevent it from being discharged into the atmosphere.

  Receiving and oiling stage:

  Relative to the oil storage stage,the oil and gas volatilization in the recovery and oil generation stage is generally called large breathing,which mainly refers to the process in which the oil tank collects oil from the outside and transfers the oil in the oil tank to the tank car,because the oil tank is opened.In the instant and during the filling process,as the oil in the tank or tanker increases,the oil and gas in the tank rises out of the tank due to the pressure rise and positive pressure.At this stage,the oil and gas emissions are relatively large.The oil and gas recovery of the oil depot should mainly collect and treat the oil and gas emissions at this stage,and collect and treat the oil and gas sealed in the oil tank during the oil storage stage.According to the national standard,the oiling process adopts the bottom oil filling method to prevent oil and gas discharge at the moment of oil tank opening.The oil and gas in the tank is collected through the collection system of the oil and gas recovery unit,and the pressure measuring instrument is arranged in the collecting system to ensure the pressure inside the tank is suitable.The oil port and oil and gas delivery interface use DN100 sealed quick coupling to reduce oil and gas emissions.

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