Fatigue life estimation on coke drum due to cycle optimization

Andrey Stephan Siahaan, Himsar Ambarita, Hideki Kawai, Masashi Daimaruya

Research output: Contribution to journalConference articlepeer-review

Abstract

In the last decade, due to the increasing demand of petroleum product, the necessity for converting the heavy oil are increasing. Thus, demand for installing coke drum in whole world will be increase. The coke drum undergoes the cyclic high temperature and suddenly cooling but in fact is not designed to withstand that kind of cycle, thus the operational life of coke drum is much shorter in comparison to other equipment in oil refinery. Various factors determine in order to improve reliability and minimize the down time, and it is found that the cycle optimization due to cycle, temperature, and pressure have an important role. From this research it is found that the fatigue life of the short cycle is decrease by a half compare to the normal cycle. It also found that in the preheating stage, the stress peak is far exceed the yield strength of coke drum material and fall into plastic deformation. This is happened because of the temperature leap in the preheating stage that cause thermal shock in the upper part of the skirt of the coke drum.

Original languageEnglish
Article number012002
JournalJournal of Physics: Conference Series
Volume1005
Issue number1
DOIs
Publication statusPublished - 2018 May 4
Externally publishedYes
Event5th International Seminar on Aerospace Science and Technology, ISAST 2017 - Medan, North Sumatra, Indonesia
Duration: 2017 Sep 272017 Sep 29

Keywords

  • Coke Drum
  • Cutting Stage
  • Fatigue Life Estimation
  • Preheating Stage

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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