Piping
Piping and instrument diagrams (P&IDs): Part 2—Causes and management of change
It is difficult to categorize or group the many reasons for routine or late changes to a P&ID. Some causes are listed here.
Causes of reduced or stopped flow in controlled-volume pumps
Controlled-volume (CV) pumps, also known as metering or dosing pumps, are designed to deliver a small quantity of fluid at a precise rate with relatively high pressure.
Refinery tower inspections: Discovering problems and preventing malfunctions
A previous survey identified installation mishaps to be one of the top five causes of tower malfunctions.
Demineralized water system design: Considerations for the petrochemical industry—Part 1
Site utility leads, engineers and other professionals in the hydrocarbon/chemical processing industries (HPI/CPI) are facing a perfect storm of increasing demineralized water demand, end of life of existing demineralized water plant equipment, changing source water quality, corporate directives to diversify water sources, and pressure from regulators and community stakeholders to minimize the volume of waste generated from water treatment.
Solve PRV and piping capacity problems—Part 1
Engineers often uncover problems or inadequacies with pressure relief valve (PRV) and relief system piping capacities that need creative and cost-effective solutions.
Reliability: Strainers and thoughtful testing: Piping initiatives worth considering
In two separate cases, foresight in the use of strainers on piping and following proper procedures for hydrostatic testing are recommended to preserve the integrity of offshore platforms.
Fluid Flow: Energy markets, product improvements drive growth in the global flowmeter market
The size of the global flowmeter market has followed the upward and downward fluctuations in oil prices and is now on an upward trajectory, according to a new study by Flow Research that provides total global market shares of the major suppliers of each flowmeter technology (except sonar and optical) by 2018 revenues.
Business Trends: EPC 2030: Five vital characteristics that will define the EPC firm of tomorrow
The state of the global engineering, procurement and construction (EPC) industry can accurately be described as “challenging.” Operating in an environment of volatile, uncertain, complex and ambiguous conditions, EPC firms are facing unsustainable levels of stress.
HC condensate sphere inlet pipe failure investigation
During a normal turnaround and inspection (T&I) of a hydrocarbon sphere, a fatigue failure in the 24-in. inlet pipe riser was discovered. As per the original 2003 design, the sphere serves as a surge tank during pipeline scraping, as well as a backup for a stabilizer during T&I. Each stabilizer has a capacity of 78,000 bpd. However, due to asymmetry in the piping configuration, the sphere typically receives higher flow of 90,000 bpd, with rates sometimes reaching 110,000 bpd as a result of scraping or other activities happening concurrently. The sphere was upgraded to work continuously in 2012 to handle the anticipated additional condensate by adding an overhead gas compressor and a dedicated condensate shipper pump.
Pinch analysis: A retrofit approach
Pinch analysis provides techniques for heat integration to design the heat exchanger network (HEN), not only for grassroots design but also to retrofit an existing system and optimize the process.
- Clariant catalysts reduce customers’ footprints by 40 million tons of CO2e in 2023 4/25
- Singapore fuel oil stockpiles hit 20-week lows 4/25
- BASF with solid start to the year: EBITDA before special items in first quarter of 2024 slightly above analysts’ consensus 4/25
- Brazil's Timbro to export 40% more sugar, enter ethanol market in 2024 4/24
- LG Chem denies report it will merge naphtha cracker business with Lotte Chemical 4/24
- Crude and gasoline stocks fell, distillate stocks rose last week, EIA says 4/24
