Process Control
How to select the better liquid-level measurement system
Here is a closer look at commonly used sensors
Computational fluid dynamics simulation of solid–liquid slurry flow
The resulting model's predictions showed reasonably good agreement with the experimental data
Wireless networks improve refinery operation
Smart instruments and secure wireless communications enable enhanced operations and asset management
OPC UA: an end user's perspective
The updated specification relies on Web services for its data transportation providing significant advantages
Soft sensor modeling using artificial neural networks
Here are guidelines for proper construction
Hydrogen gas detection
Combining detection systems improves safety
HP Control: CDU overhead double-drum configuration
Fig. 1 shows one of many CDU overhead configurations, with naphtha cutpoint control accomplished by a column top temperature controller manipulating a top pumparound (TPA) circuit heat removal. This c..
Genetic algorithm tuning improves artificial neural network models
The technique is illustrated by predicting hold-up of slurry flow in pipelines
HP Control: Align alkylation separation to economics
A recent HP editorial1 showed the effect of advanced process control (APC) with inferential models on alkylation isostripper iC4 lost to an nC4 side draw (Fig. 1). From trend data for the two periods ..
Align HPI operations to economics
Clifftent optimizes risky tradeoffs at limits
- ExxonMobil plans 1 Blbs/yr of advanced recycling by 2027 11/22
- Gauging the likely Trump effect on U.S. energy and power sectors 11/22
- Russia's Lukoil restoring cracker at NORSI refinery, gasoline output rising 11/22
- Nigeria's local currency crude sales fall short of target, Dangote refinery says 11/22
- U.S. October gasoline imports hit post-pandemic low on slump in European shipments 11/22
- Clean Hydrogen Works awards McDermott FEED contract for Ascension Clean Energy (ACE) project 11/21
