revamps ptq ptq PETROLEUM TECHNOLOGY QUARTERLY
3 Retrofitting vane pack separator for improved column performance Case history of a syngas production unit, which experienced high methanol content in the tail gas of the scrubber when operated at 116% of original design loads Han Yongchun, Wu Zhijiang and Ang Chew Peng Sulzer Sulzer 9 Improving preventive maintenance using equipment criticality Case study demonstrates the importance of rating equipment criticality in an effective preventive maintenance plan while reducing overall cost E. Charles Maier Becht 15 Diagnosing a premature flood in an atmospheric crude tower Diagnosing and rectifying the flooding in a crude tower emphasises the importance of conducting plant tests, as well as gamma scanning investigations and analyses Daniel Hussman, Gord Bruce, Abdullah Abufara Komi Chandi and Joshua Donohue Parkland Refining (BC) Ltd Henry Z Kister Fluor 25 Optimising cartridge tray installation Methodology for tackling site challenges and improving HSE and quality in cartridge tray installations while reducing the overall installation cost Urmilesh Tiwari Engineers India Limited 31 Vacuum heater operational cycle improvement study Coke formation creates short vacuum heater runs. Controlling film temperature and oil residence can help reduce coke formation rate inside radiant tubes Haytham Al-Barrak, Abdulaziz Mubarak and Mahendran Sella Saudi Aramco 36 From waste to clean energy: The acid path to reducing COâ‚‚ emissions Case study explores environmental benefits of the WSA process to capture waste heat, enhance energy efficiency, and reduce the refinery carbon footprint in comparison to the Claus sulphur recovery process Igor Yu Kostromin Topsoe Cover The new polypropylene and linear low-density polyethylene process units represent an investment of more than 657 million euros. When fully operational, they will make the Repsol Sines Industrial Complex one of the most advanced in Europe due to their flexibility. Photo courtesy of Repsol.
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