Specialist for Ethylene Pipeline
Specialist for Ethylene Pipeline
(OP)
Recently I have started my new job in the world most longest ETHYLENE PIPELINE Project. Since the geographical and topographical characteristic and climatic conditions at different segment of right of way of the pipeline is different from each other, it has made is as the most complicated one in operation point of view.
Ethylene is compressed supercritical gas in summer conditions, when it passes the pipeline located in mountainous area and it is compressed supercritical liquid in winter conditions, when it passes same rout. So it is completely different, comparing to the natural gas pipeline.
For this reason I am wondered which type of machines (compressors or pumps) we should select for transferring of ethylene, to provide required head and maintain the pressure of the ethylene at the required level at different section of the pipeline.
If any one who has experience in Ethylene pipeline please help me to find:
*)Which criteria I should consider for selection of the right machines (compressors or pumps) for transferring ethylene?
*)Which skills we should consider in design of pipeline to minimize risk of two phase flow in abnormal operating conditions?
*) Do we need pig launcher and receivers for pipeline what should be the pigging procedure?
*) What safety factor we should consider for Right Of Way regarding the supercritical conditions of ethylene which is different from natural gas.
Ethylene is compressed supercritical gas in summer conditions, when it passes the pipeline located in mountainous area and it is compressed supercritical liquid in winter conditions, when it passes same rout. So it is completely different, comparing to the natural gas pipeline.
For this reason I am wondered which type of machines (compressors or pumps) we should select for transferring of ethylene, to provide required head and maintain the pressure of the ethylene at the required level at different section of the pipeline.
If any one who has experience in Ethylene pipeline please help me to find:
*)Which criteria I should consider for selection of the right machines (compressors or pumps) for transferring ethylene?
*)Which skills we should consider in design of pipeline to minimize risk of two phase flow in abnormal operating conditions?
*) Do we need pig launcher and receivers for pipeline what should be the pigging procedure?
*) What safety factor we should consider for Right Of Way regarding the supercritical conditions of ethylene which is different from natural gas.





RE: Specialist for Ethylene Pipeline
Narendranath R
Pipeline engineering is made easy with state of the art computer software, visit www.narendranath.itgo.com.
RE: Specialist for Ethylene Pipeline
50 ~ 105 % of design RPM.
Elevation change in pipeline is about 2700 m and some of compressor stations located for compensate static pressure loss of pipeline in winter (dense-phase of ethylene).
Anybody knows information about these procedures for ethylene pipeline:
1- Safety area around the pipeline (Area of Right of Way)
2- Purging of pipeline (limitation of water & oxygen content in ethylene pipeline before startup)
3- Pre-commissioning & startup
4- Pigging procedure