Motors
Use new methods to optimize energy efficiency of hydrogen compressors
Hydrogen (H2) is a key to efficient operation of refinery desulfurization units (DSUs). Process H2, both pure and recycled from DSUs, must be compressed to pressures up to 85 kg/cm2. Centrifugal compr..
HP Reliability: Reassessing and updating electric motor bearing lubrication
Over the past 25 years, this column has often dealt with electric motor lubrication. As listed in the recommended reading list, this subject is often asked and, of course, there are updates to the rec..
HP Viewpoint: Methanol takes on LNG for future marine fuels
As the lifecycle economics of using MeOH compared with other emission compliance options become more evident, we will see the tide rising on the use of MeOH as a marine engine fuel.
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..
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..
HP Reliability: Plan now to deal with stressed equipment later
The US Energy Information Administration’s (EIA’s) “Today in Energy” brief evaluated how US refineries are processing record amounts of crude oil (Fig. 1), with Midwest and Gulf Co..
How to select compressors for various process services
Every style or type of compressor was developed to serve a particular process purpose. Collective references have devoted hundreds of thousands of pages on this topic. Two books have attempted to summ..
Update on control and safety systems for turbomachinery
All plant workers want to reduce the safety risk associated with turbomachinery operation while avoiding nuisance trips. The goal is to run machines in an efficient manner. In this context, safety ris..
HP Reliability: Can integrally geared compressors be successfully used with variable speeds?
A recent HP webinar answered a number of compressor-related questions. This same webinar also generated a few additional ones. A viewer thought that two statements from this presentation were in contr..
- U.S. EPA to remove proposed EV volumes from biofuel blending rule 6/6
- BASF increases alkoxylates production capacity in Europe 6/6
- Russia's Sakhalin invites India and China to tap energy resources 6/6
- Airlines urge co-operation to help curb emissions 6/6
- Oil prices steady as economic fears offset Saudi output cut 6/6
- U.S. diesel demand is falling despite economic growth 6/6
- VOC reduction at Raffineria di Milazzo’s SRU complex—Part 2
- Digital Technologies: Do not just monitor bad actor machines: Start when they are healthy
- People
- Editorial Comment
- Maintenance and Reliability: Non-standard flanges for catalytic cracking units
- How companies can take advantage of APM solutions to reduce planned maintenance
- Design considerations when flaring ethylene oxide
- Why sulfur plants fail: An in-depth study of sulfur recovery unit failures—Part 1
- Implement advanced level control techniques to improve crude distillation unit stabilizer performance
- Maintenance and Reliability: Non-standard flanges for catalytic cracking units
