Real Time Optimizing Control of a Class of Crude Oil Blending Operations
| Authors: | Morales-Diaz America, Instituto Mexicano del Petroleo, Mexico
Rodriguez-Angeles Alejandro, Instituto Mexicano del Petroleo, Mexico
Blanco Anibal, Instituto Mexicano del Petroleo, Mexico
Snachez Arturo, CINVESTAV, Mexico |
|---|
| Topic: | 6.1 Chemical Process Control |
|---|
| Session: | Process Control Applications |
|---|
| Keywords: | real time optimization, blending control, crude oil |
|---|
Abstract
A real-time optimizing (RTO) controller for the blending of crude oil is presented. The RTO controller uses a non-linear "bias-update" technique and measurements of crude component properties to provide optimal blend flows. Two typical operating scenarios are considered for the blending of two inputs. The objective of the first scenario is to keep a constant flow of blended crude with a minimum production cost. The second case considers maximizing the amount of the heavier crude input while maintaining constant the flow rate of the lighter crude input. Simulation results are compared with historic data of a real blending process, showing the convergence properties and efficiency of the RTO controller.
