Abstract:

This paper analyzes the actual operation of the first stage and second stage catalysts in the second cracking gasoline hydrogenation unit at PetroChina Daqing Petrochemical Company. Through the information collection, reasonable adjustment, detailed analysis and simulation calculation of the operation of catalysts and the familiarization with the properties of the first stage and second stage catalysts, the operation cycle of the catalysts was prolonged. The catalysts have not been replaced since July 2010 (with 4 years of shutdown protection), and good operation effect has been achieved. The product quality meets the requirements, effectively reducing the catalyst investment and producing obvious economic benefits.

Key words: cracking gasoline hydrogenation, reaction parameter, poison