Abstract: Furnace is one of the major process equipment in petrochemical enterprise. The material passing through the furnace tube is heated to a desired temperature and then sent to the next process equipment for fractionation, cracking or reaction. In this paper, a continuous reforming furnace designed by a petrochemical company is taken as an example to introduce in detail the equipment layout and important pipelines of furnace in compliance with PIDs and related standards and codes. The design ideas of oil transfer line and fuel gas manifold at the outlet of furnace are discussed based on the comparison with previous design, and some suggestions are provided for common problems that are probably encountered during piping design, so as to achieve a concise and rational design

Key words: furnace, transfer line, piping design