If you have ever sized or selected a pressure safety relief valve (PSV) using vendor sizing programs or hand calculations, you have probably run into a strange anomaly.
The sheer volume of equipment in a refinery—from vessels, columns, huge structures and mazes of pipes to pumps, valves, controllers and instruments—is staggering.
Even for pressure relief valves (PRVs) discharging directly to the atmosphere through short tailpipes, API 520 Part 11 warns that choked flow may develop at the outlet flange, resulting in high backpressure.
Hydrocarbon Processing, the downstream processing sector’s leading technical publication, has announced the winners for its second annual awards.
The 2017 process instrumentation and automation (PI&A) market in the US, valued at $13.4 B, is projected to grow 3.7% by 2022 to a total of $16 B.
Overall energy management and operational conservation have become crucial factors for profitability in today’s refining segment.
Oil refineries provide a smorgasbord of challenging applications for instrumentation engineers and technicians.
Hydrocarbon Processing, the downstream processing sector’s leading technical publication, has announced the finalists for its second annual awards.
A debutanizer column was experiencing unstable operation, with frequent pressure swings and product composition fluctuations from the column overheads system.
Guner, U., Bryan Research & Engineering, Inc.
Pressure relief valves (PRVs) protect equipment from excessive overpressure and, in case of emergency situations, they should ensure a sufficient discharge of mass to reduce the pressure below the recommended pressure limits.