Featured Articles
The lost art of proportional band, and the accidental art of performance monitoring
Kern, A., APC Performance LLC

Most control engineers know that proportional band and controller gain are largely interchangeable terms—both terms refer to the proportional setting of a proportional-integral-derivative (PID) controller and are commonly used by control system manufacturers.

Carburization inspection robots for radiant tubes inside ethylene cracking furnaces
Tiyawongsakul, T., Rayong Engineering & Plant Service Co. Ltd.

In an olefins plant, the reliability of ethylene cracking furnaces is one of the deciding factors used to indicate whether or not the plant can be operated at its design productivity.

Revamp fired heaters with a common air-preheating system to increase capacity
Ahamad, S., Vallavanatt, R., Bechtel Corp.

In any process plant, fired heaters are generally considered to be one of the most optimally designed pieces of equipment.

Troubleshooting vacuum operation of an inter-after condenser unit in an ethylene plant
Wieslaw, T., Nichols, J., Sasol; Lieberman, N., Process Improvement Engineering; Johnson, E., Graham Corp.

A system of compressors powered by surface condensing steam turbines is inherent in the operation of a typical ethane cracker unit.

Automation Strategies: Navigating automation in oil and gas—Lessons learned from other industries
Fryer, J., Stratus Technologies

In today’s economy, industrial automation has become absolutely essential for refiners, petrochemical producers and pipeline owners looking to maintain profitability and competitive advantage as market pressures bear down on them.

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Construction Boxscore: Project Spotlight
Project: Dominion Cove Point Liquefaction Project
Location: Lusby, Maryland
Operator: Dominion Energy
Cost: $3.5 B
Capacity: 5.25 MMtpy
Completion date: 2017
Status: Underconstruction
Project: O'Connor 2 Plant Project
Location: Denver-Julesburg (DJ) basin, Colorado
Operator: DCP Midstream
Cost: $400 MM
Capacity: 200 MMcfd
Completion date: 2019
Status: Planning