Valves
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 Engineering Case Histories: Case 84: Remaining service life of plant equipment can be determined
For new plant machines and equipment, the life expectancy is determined by the original equipment manufacturer (OEM). Yet, different analysis techniques are often required in a failure analysis. In a ..
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
AVEVA NET software is cloud readyAVEVA has implemented a number of improvements to AVEVA NET, its information management software (Fig. 1). Customer feedback has shown that these improvements enhance ..
HP Reliability: Consider technology-based specialized industrial services
Most downstream professions have heard of (or personally experienced) glitches in activities involving offshoring and outsourcing. Too often, some maintenance and purchasing agents travel the “go..
Improve monitoring and troubleshooting of reciprocating compressors
The terms surveillance and monitoring for reciprocating compressors can be used interchangeably. With few exceptions, the monitoring and/or surveillance tasks are assigned to the unit operators. They ..
HP Project Management: Pipeline expansion uses rerating to debottleneck services
The Colonial Pipeline connects refineries primarily on the US Gulf Coast with customer service markets across the southern and eastern US. In 2010, Colonial’s 5,500-mi pipeline was transporting a..
HP News
IChemE awards highest professional honor to Shell The Institution of Chemical Engineers (IChemE) awarded its highest honor to Shell in recognition of the company’s worldwide skills and profession..
Improve compressor reliability with advanced chemical treatments
Although many olefin plants are making big investments in hardware and metallurgy to improve compressor performance and to extend run lengths, the reliability, efficiency and throughput capacity of the CGC are still key influences on plant profitability.
Triple-offset valves offer advantages in emergency services
Liquid hydrocarbon storage facilities have used triple-offset valves (TOVs) in traditional tank farm applications for decades. Due to more stringent health, safety and environment (HSE) requirements, ..
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