Compressors
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.
HP Engineering Case Histories: Case 80: Sudden temperature change in a centrifugal compressor
A process upset occurred that caused the gas temperature of a centrifugal compressor to increase from the design condition of Tstart = 300°F to Tinf = 600°F in t = 0.25 hours. Some engineers..
HP Viewpoint: Optimize control systems with preventive maintenance
Ensuring equipment integrity by conducting thorough maintenance provides multiple benefits, from maximizing machine uptime and minimizing process shutdowns, to prolonged equipment service life and imp..
Linde begins producing hydrogen-fuel stations
Linde officials are hoping to help commercialize fuel-cell cars with better hydrogen infrastructure, saying they need more flexibility to meet rising demand in different markets.
HP Reliability: Things to know and do before starting new initiatives
HP editors frequently attend technical conferences to keep informed on the many factors impacting the hydrocarbon processing industry (HPI). The focus of these conferences often differs. However, one ..
Kobe Steel’s compressor company opens in Brazil
Kobe Steel announced that its subsidiary company, Kobelco Machinery do Brazil, has begun full-scale marketing of nonstandard compressors in the region of South America.
A chemist’s perspective on organic fouling in ethylene operations
Since organic fouling cannot be completely eliminated, ethylene producers must use operational, chemical and mechanical methods to minimize heat transfer losses and equipment downtime.
Automate furnace controls to improve safety and energy efficiency
Furnace firing is the biggest single operating expense in any refinery. Consider a medium-size refinery (250,000 bpd) that consumes 2,000 MMBtu/h. At a cost of $5/MMBtu, that’s $87.6 MM/yr being ..
Use online conditioning to monitor electric motors
Quality and health assessments of motor insulation are important aspects during the manufacturing, as well as the operation, of electrical motors. Today, there are several offline insulation quality a..
HP Engineering Case Histories: Case 79: Integral compressor failures
Recently, the author received information regarding the failure of a large reciprocating compressor. In this example, the pistons for power and compressor cylinders are powered by the same crankshaft...
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