Rotating Equipment

Case study: Improve vacuum tower operation with VFD addition

Alshaye, A., Saudi Aramco

The bottom pump in crude vacuum units is an area of concern for almost all petroleum oil refineries. The harsh operating parameters in which these pumps operate, including high product temperature and significant vacuum suction pressure, have resulted in frequent vacuum tower upsets and low mean time between failures (MTBF) for vacuum bottom pumps.

Digital: Transitioning from the spreadsheet to the Cloud

Renick, J., GE Digital

The Industrial Internet of Things is expected to create a $225-B market by 2020, opening new opportunities for industrial organizations related to data and asset management.

Equipment critical analysis: The need for an effective maintenance program

Zardynezhad, S., Toyo Engineering Canada Ltd.

Oil refineries and large petrochemical plants contain thousands of pieces of process and utilities equipment that are subject to wear, erosion, deterioration, aging, etc., resulting in increasing breakdowns and outages. Imagine being a maintenance engineer and receiving 50 work orders during an overhaul with a limited budget, time, labor, spare parts, tools, machines, etc. How does that engineer prioritize the work?

Automation Strategies: Adopting the IIoT: How the industry needs to rethink IT and OT relationships

Fryer, J., Stratus Technologies

For the connected enterprise, what was once just a futuristic ideal is now becoming a reality. Step by step, organizations are beginning to put together the pieces of the Industrial Internet of Things (IIoT).

Reliability: Understanding right-angle gear backlash

Bloch, Heinz P., Hydrocarbon Processing Staff

By definition, all gear units have teeth. These teeth are designed and produced to a certain strength, or a defined force-on-tooth, or an allowable pressure-load on tooth.

Editorial Comment: Maintenance—a value-added expense

Nichols, Lee, Hydrocarbon Processing Staff

This issue of Hydrocarbon Processing tackles one of the most integral aspects of the downstream industry (or any industry, for that matter): maintenance and reliability. These two terms go hand-in-hand and help to ensure efficient and safe operations.

Industry Perspectives: Hydrocarbon Processing’s IRPC returns to Europe in June

Nichols, Lee, Hydrocarbon Processing Staff

Founded in 2009, Gulf Publishing Company and Hydrocarbon Processing’s International Refining and Petrochemical Conference (IRPC) provides a series of events for the international downstream industry covering technical innovations, and exploring both the challenges and opportunities found in today’s market.

Reliability: Achieve longer bearing life in rotary asphalt pumps

Bloch, Heinz P., Hydrocarbon Processing Staff

When a major asphalt manufacturer experienced random bearing wear in its gear pumps, there was justified concern.

Vibration studies offer valuable lessons for correcting problematic operations

Tharakan, J., Suncor Energy Products

All plants have a vibration monitoring program for rotating equipment. Portable instruments measure vibration at the bearing housing of machines at horizontal (x), vertical (y) and axial (z) directions. The frequency spectrum helps diagnose the causes of vibration.

Implement proactive asset management techniques

Natarelli, J., T.A. Cook Consultants Inc.

The drop in crude oil prices since 2014 has impacted both upstream producers and downstream players. Upstream producers—those responsible for exploration, drilling and production—were the first to feel the effects. While refining margins benefitted from the drop in crude oil pricing, they began to suffer when record surpluses of gasoline and diesel flooded the market a year later.