Process Control
Gage multivariable predictive control motility to guide support
Manipulated variable analysis is much simpler than controlled variable analysis for determining controller health
Probabilistic alarm management
A procedure using Markov chains provides insights based on HAZOP report information
Optimizing wireless systems in hydrocarbon processing plants
Here's how to manage the many disparate technologies
Intrinsically safe fieldbus for hydrocarbon processing plants
The key issue is delivering enough power to a large number of field devices
Effective pH control through intelligent automation
This technology can improve reliability while reducing operating costs
Zero-lag exponential moving average for real-time control and noisy data processing
The filtering technology has no time delay
Model-free adaptive control technology enables ethylene quench water pH control
PetroChina has improved ethylene production efficiency and plant safety
Monitor sulfur levels in your olefin feedstocks
Analyzing this element is essential for polyolefin producers to improve catalyst performance
HP Control: Controlling the mundane naphtha stabilizer, Part 2
Part 1 of this editorial (September issue) discussed a debutanizer control strategy (Fig. 1). Given that feed composition varies with ambient conditions, one could argue that unless you have advanced ..
HP Control: Controlling the mundane naphtha stabilizer, Part 1
Consider the distillation column in Fig. 1. It is called a "stabilizer" and removes LPG from naphtha. Every refinery has at least three of them, and often five or more, one each in every crude unit, r..
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