1. Operation optimization of hydrogen sulfide removal stripper in hydrocracking unit.
- Author
-
Huang Haipeng
- Abstract
Based on the operation data of the hydrocracking unit, the simulation process of hydrogen sulfide removal stripper is constructed by Aspen Plus software, and ELECNRTL is used to simulate and optimize - 26 - the process of hydrogen sulfide removal of oil from low pressure separator. The effects of key parameters, such as stripping steam consumption, feed temperature and feed position of oil from cold low pressure separator, feed position of oil from hot low pressure separator, on hydrogen sulfide removal efficiency and energy consumption of stripper are investigated. The results show that under the existing operating conditions, the stripping steam is excessive, and the energy consumption is unreasonable. With the adjustment of feed position of oil from hot low pressure separator, the stripping steam consumption reduces from 3. 5 t/h to 1. 5 t/h. Combined with the comprehensive analysis of the heat exchange network of the unit, following the principles of high heat high utilization and energy cascading utilization, the improvement and optimization measures for the preheating process of oil from cold low pressure separator are put forward. Through the rational use of high temperature potential heat, the overall energy efficiency of the unit is effectively improved. [ABSTRACT FROM AUTHOR]
- Published
- 2021