Abstract:

With the advantages of short process flow and less investment, the cracking unit which takes light hydrocarbon as the raw material provides a new way for the revamping and expansion of ethylene plant by petrochemical enterprises. Taking a light hydrocarbon cracking project planned and constructed by an enterprise as an example, this paper puts forward three categories and six different construction schemes for comparison and selection based on the supporting conditions and development strategy, uses PIMS process planning platform system to calculate the material balance of the schemes, discusses the engineering schemes for process units and utilities, analyzes the investment and benefits of different schemes, and draws preliminary research conclusions and suggestions.

Key words:  light hydrocarbon, steam cracking, planning project, case study