Lee, S.

SK Energy, Seoul, South Korea

Sang-Mo Lee has more than 26 yr of experience as a Fixed-Equipment Engineer at SK Energy. His main tasks include root cause analysis (RCA), troubleshooting, fitness-for-service (FFS) evaluation, maintenance procedures and technical support for the refining and petrochemical business. He earned a BS degree in mechanical engineering, and is qualified as a professional engineer for welding and metallurgy by the South Korean government.

Stability evaluation of hot spots in the RDS process reactor

During the end-of-run (EOR) period of the authors’ company’s residue hydrodesulfurization (RDS) process in early February 2019, some hot spots occurred in the catalysts of the reactors.

Case study: Extend tube life in a waste heat boiler

Lee, S., Kim, E., SK Energy

The sulfur recovery unit (SRU) separates sulfur from sulfur compounds.

Application of ring-type joint gaskets in a refinery

Lee, S., Lee, S. H., Jeon, S., SK Energy; Jang, T. Y., SK Innovation Co. Ltd.

In refineries and petrochemical plants, ring-type joint (RTJ) flanges have been applied to high-pressure processes or sensitive areas that are susceptible to leaks.

Three topics for operational excellence related to a Cr-Mo hydrotreating reactor

Lee, S., Kim, E., Jeon, S., SK Energy

Many end users are trying to use feedstock with higher sulfur content for their refineries to increase profitability, but numerous unknown or plausible bottlenecks exist.

Determine the standard hoop density of spiral-wound gaskets on flanges

Lee, S. H., Lee, S., Jeon, S., SK Energy

The use of spiral-wound gaskets on flanges has resulted in good sealing performance. However, most gaskets do not perform well when the flange is improperly installed.