Piping
Use a simple vapor equation for sizing two-phase pressure relief valves
Pressure relief valves (PRVs) protect process equipment from the hazards of excessive over-pressure.
Reliability: When to consider liquid-ring compressors
Liquid-ring compressors (FIG. 1) use the centrifugal whirling of a sealing liquid to create a series of piston-like water columns to trap gas or vapor between the impeller cells of a rotor installed eccentric to its casing.
Business Trends: Non-OEM parts—Buyer beware
What is the harm in wearing a knock-off Rolex watch?
Investigations of high pressure drop observed in ASU columns
The measured pressure drop of columns in air separation units (ASUs) is often reported as being higher than the predicted pressure drop.
HP Flashback: Excerpts from the 1960s: Petrochemicals rise in prominence and new know-how in refining processes
Petrochemicals rise in prominence and new know-how in refining processes
Investigation and diagnosis of startup foaming issues at a new tail gas treater
In May 2021, Phillips 66 started up a new methyl diethanolamine (MDEA)-based tail gas unit at its Belle Chasse, Louisiana, refinery.
HP Flashback: Operations expand and technologies advance during global conflict: Excerpts from the 1940s
This articles details several case studies on the use of x-ray technology for inspection purposes. This includes for the inspection of casings, forgings and welded structures, among others.
Piping interface type selection
Most oil and gas process plant projects involve multiple work packages executed by different lump sum turnkey (LSTK) contractors executing work within their own package, with a final piping interface connection at an agreed boundary limit to accomplish the interface joint between two parties and successfully close the piping interface.
HP Flashback: Operations, processes and safety evolve and advance: Excerpts from the 1930s
The following is a mixture of technical articles, columns and headlines published in the 1930s by <i>The Refiner and Natural Gasoline Manufacturer</i>, the forerunner to <i>Hydrocarbon Processing</i>.
Upkeep down the pipe: Plant shutdowns and water treatment
The maintenance checklist for a plant shutdown can sometimes look intimidating and, in the face of a short timeline, unnerving.

- Clariant technology to transform 8,000 tpy of CO₂ to synthetic fuels and waxes 6/3
- Lummus and InnoVent Renewables sign MoU for tire pyrolysis technology 6/3
- Marubeni signs a long-term offtake agreement for green ammonia produced in Inner Mongolia, China 6/3
- Braskem to commercially implement Ardent’s Olefin Separation technology 6/3
- BASF, Yuntianhua successfully verify/register GHG emissions reductions from the use of stabilized urea fertilizer 6/3
- Both crude units at bp Rotterdam oil refinery are offline 6/3