Methods and apparatus for process control using catalyst state estimation
US7460915B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2006 |
| Grant date | Dec 2, 2008 |
| Priority date | — |
| Expiry date | Jan 28, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B13/04
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In a process control system, the hidden properties of a catalyst are estimated by including those properties in hidden states within a state space model and solving the state space model based on measurable inputs and outputs of the process. The process may include defining a state space model for a process having a catalyst state comprising a hidden catalyst property; defining a set of empirically measurable input variables for the state space model, defining a set of output variables for the state space model, measuring a set of input values corresponding to the set of input variables; measuring a set of output values corresponding to the set of output variables; and estimating the hidden catalyst property based on the input values, the output values, and the state space model.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.