Hi All! I like to see your view on what my activity might likely be in a pre-commissioning of a gas processing plant as a Process engr who's doing it for the very first time.
Basically for commissioning plant, you need to have experience where you will be able to verfiy the drawings, control naratives, making sure all documents which will be utilized in the future are correct, and to submit items that are not applicable from porcess point of view. All of those activities where you are not going to do during normal operation. In addition, the pre-commissioning is lot of fun where you will be involoved in some mechanical activities for preparing the system for the start-up. these activites could be: air blowing, re-instatemnts, leak test, nitrogen purging. for the very first time, you are going basically not to work as a process engineer. you mostly be working as a construction engineer. the scope of process engineer in a commissioning where the rotated and static equipments are going to be operated. hope you find it benificial.
We are close to mechanical completion at the moment. In terms of planning, there's a generic company commissioning procedure but this requires fine tune to be project specific. I will be starting with the planning and followed on to execution.
The thing is: Pre-Commissioning is mainly to clean everything up taking t from construction putting it init the commissioning team's hand. You will have to clean piping and dry it after hydro-tests. You should blow air through for example. You may clean manually if it is big enough. You check for leaks maybe with pressure or with vacuum. You may use refrigerant and detectors. Blowing air may be conterminously or with rapture disks (plastic sheets). Cleaning systems with water, chemical, steam, oil or others may happen. Drying and inerting is something will happen later. Replacing the temporary gaskets with permanent gaskets is a thing. Making procedures and preparing commissioning lists will happen. Punch lists will be prepared too. Many tasks and more are there.