Corrosion
HP Reliability: Why users must update design contractors’ understanding
In early 2012, a rotating equipment engineer was involved in a machinery quality assessment (MQA).1 Located halfway around the globe, this engineer’s new job was to oversee the engineering, procu..
HP Integration Strategies: Could remanufactured control components place HPI plants at risk?
The hydrocarbon processing industry (HPI) must address a number of potentially catastrophic safety issues. One issue, in particular, is the growing use of remanufactured equipment and components from ..
HP Viewpoint: Increase the visibility and reliability of all major plant assets
Turbomachinery, essential to refining and petrochemical operations, has significant impact on plant production, maintenance and energy consumption. One of the most effective ways to improve turbomachi..
HP Engineering Case Histories: Case 75: Analyzing wear when troubleshooting
Wear occurs frequently on machinery. In its simplest terms, it is the undesirable removal of material. When troubleshooting the root cause of wear in equipment, the engineer’s interest should be ..
Mitigate fouling in crude unit overhead—Part 1
In a refinery crude distillation column, up to 40% of the total heat removal may be found in the tower overhead condenser. The quantity of duty available makes heat integration (HI) between the column..
HP Reliability: Leaders must allocate time for technology updates
Just as a good medical doctor is expected to have wide knowledge on modern treatment options, we would expect reliability professionals to be equally informed on technology advances. There are numerou..
Optimize your compressor maintenance program
One deviation alone might not be enough to bring on a compressor failure, but, when several more deviations combine, the failure risk is known to increase exponentially.
Case history: Failure analysis of a syngas compressor
A first-stage impeller in a synthetic gas compressor failed after 20 years of service. The compressor is a six-stage centrifugal compressor driven by a steam turbine. This case history discusses the i..
HP Reliability: Four-stage, low-flow process centrifugal compressor can fill important industry gaps
In the 1970s and 1980s, multistage centrifugal compressors in the 3,000 acfm (about 5,000m3/hr) and lower flow ranges were largely confined to instrument and plant air duties. Three stages with interc..
HP Engineering Case Histories: Case 74: How to determine impact forces when troubleshooting
When troubleshooting failures, it is not unusual for the metallurgical report to indicate that the failure was the result of an impact type of force. The investigator who receives this information mus..
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