Back to results
US 6,420,595 B1Granted
Process control for vinyl acetate manufacture
AssigneeMillennium Petrochemicals Inc.
InventorsNoel Hallinan, Wayne Brtko
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeMillennium Petrochemicals Inc.
InventorsNoel Hallinan, Wayne Brtko
Estimating the term…
A method of real time process control in a reaction system for the production of vinyl acetate from the oxidation of ethylene and acetic acid. Reaction system samples are collected from the reactor vessel feed and/or effluent and/or from columns and/or transfer lines downstream of the reactor vessel, and the concentration of one or more components in the sample is measured by an infrared analyzer. The concentration measurements are then used to make adjustments in the concentration of components in the reaction system, directly or indirectly, such as by adjusting the temperature profile in a particular column, the flow rate of solution in to or out of a column, or the addition or extraction of a component to or from the solution. For optimum process control, the measurements are transmitted to a control unit for real time analysis, and the adjustments are made almost instantly after the infrared analysis.
A method of effecting process control of component concentrations in a reaction system for the production of vinyl acetate from the oxidation of ethylene and acetic acid, the method comprising the steps of:
Dependencies are inferred from the claim text.