Maintenance & Reliability
How caustic stress leads to failures of incinerator caustic spray nozzles
Frequent failures of the waste spray nozzles in incinerators result in accelerated degradation of the refractory lining, requiring unscheduled shutdowns for repairs. A study was carried out to identify the factors that contributed to the nozzle failure and to prevent the reoccurrence of similar failures in the future.
Extend heat exchanger lifecycle with hyper-duplex stainless steel
Intensifying performance demands in refineries, coupled with the ongoing decline in crude oil quality, require a new and improved duplex SS grade to withstand increasingly tough operating conditions. This need has led to the development of hyper-duplex stainless steels.
HP Reliability: Consider oil-resistant cable terminations to increase electric motor reliability
Most engineers are familiar with adhesive-coated insulating tape used by electricians in the field and maintenance shop. If we use this tape in the engine compartment of an automobile, it will soon be..
HP Engineering Case Histories: Case 83: What are useful questions to ask before starting a vibration analysis?
Periodically, this author receives questions from readers throughout the world addressing what performance issues could be wrong with a centrifugal compressor that is vibrating. Note: It is impossible..
HP Innovations
Corrosion prevention for high-TAN refiningFor petroleum refiners, improving profitability by processing high-total-acid-number (high-TAN) crude oils requires an investment in high-temperature corrosio..
HP Reliability: Does Pareto’s 80/20 rule apply to reliability engineers?
In the 1970s, an oil refinery discovered that 7% of its 3,200 process pumps experienced a disproportionate share of the facility’s yearly pump outage events. Slightly over 60% of the money spent ..
Sulzer acquires weld overlay company Interweld
The integration will start after closing, which is expected in the beginning of 2015. All employees will be retained, ensuring ongoing customer dedication in the weld overlay marketplace.
Optimize amine sweetening with an optical O2 analyzer
After extraction, raw natural gas must go through processing before it is suitable for industrial, commercial and residential usage. The first stage of gas processing is known as “sweetening,..
Fine-tune monitoring of critical compressors
In this case history, a new monitoring system was installed on a critical service hyper compressor for a Middle East (ME) ethylene complex. This unit supported two 400 Mton polyethylene (PE) units; do..
Consider technology to reduce compressor vibration and noise problems
Industrial centrifugal compressors installed in hydrocarbon processing industry (HPI) complexes absorb significant amounts of mechanical power when compressing gases. A small part of the mechanical en..
- Brazil's Petrobras approves $1.2 billion investment for renewable fuels plant 6/22
- First batch of equipment arrives in Kazakhstan for $7.7-B Atyrau polyethylene project 6/22
- Explosion at Qatar's Ras Laffan LNG complex kills 13, injures 66 6/22
- Asia has plenty of crude oil, but refined fuels remain tight 6/22
- Fire extinguished at Marathon's Galveston Bay Refinery in Texas (U.S.) 6/22
- El Nino, expanding ethanol use squeeze India sugar supply 6/22
