Environment & Safety Gas Processing/LNG Maintenance & Reliability Petrochemicals Process Control Process Optimization Project Management Refining

Piping

HRSG water/steam sampling: Do it right or face potential consequences

ChemTreat, Inc.: Buecker, B.
Sentry Equipment Corp.: Powalisz, J.

Many large industrial facilities—including refineries, and chemical and petrochemical plants—are increasingly turning to co-generation for process steam and power production.

The effects of highly corrosive fluids on valves and disasters that can be avoided

ValveMan: Welsford, G.

Some of the highly corrosive fluids in the oil and gas industry contain the following compounds: carbon dioxide, hydrogen sulfide, chlorides and moisture.

Use a simple vapor equation for sizing two-phase pressure relief valves

Covestro: Kim, J. S.  |  Li, P.  |  Haines, R. J.
Bechtel: Lopez, J. P.

Pressure relief valves (PRVs) protect process equipment from the hazards of excessive over-pressure.

Reliability: When to consider liquid-ring compressors

Process Machinery Consulting: Bloch, H. P.

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

Emerson: Boyle, B.

What is the harm in wearing a knock-off Rolex watch?

Investigations of high pressure drop observed in ASU columns

China National Air Separation Engineering Co.: Xu, F.-J.  |  Zhou, F.-H.  |  Cao, Z.-M.
Sulzer Chemtech: Zuber, L.
Sulzer Chemtech China: Dong, J.-J.

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

Hydrocarbon Processing Staff: Nichols, Lee

Petrochemicals rise in prominence and new know-how in refining processes

Investigation and diagnosis of startup foaming issues at a new tail gas treater

Phillips 66: Copper, S.  |  Viceral, B.  |  Thomas, K.  |  Goff, S.  |  Contreras, J.  |  Nyadong, L.  |  Stavros, J.
Optimized Gas Treating, Inc.: Hatcher, N. A.

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

Hydrocarbon Processing Staff: Nichols, Lee

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

Saudi Aramco: Alsuayyid, A.  |  Jadav, N.

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.