Patent ID: 6924149
Filing Date: 2005-08-02
Classification: B01F,B01J,B01L,C40B,G01K,G01N,Y10T

Abstract:
1. A method for monitoring the consumption of a gas-phase reactant in a catalyzed liquid-phase reaction contained in a vessel by monitoring pressure changes in the vessel, the method comprising loading the vessel with a liquid-phase reaction material, introducing the gas-phase reactant into the vessel, pressurizing the vessel, allowing the gas-phase reactant and the liquid-phase reaction material in the pressurized vessel to reach equilibrium with respect to the concentration of the gas-phase reactant in the liquid-phase reaction material, injecting a catalytic liquid containing a catalyst for reacting the gas-phase reactant into the pressurized vessel containing the gas-phase reactant in equilibrium with the liquid-phase reaction material to form a liquid-phase reaction mixture comprising the liquid-phase reaction material and the catalyst, reacting the gas-phase reactant in the liquid-phase reaction mixture such that the pressure in the vessel decays as the gas-phase reactant is consumed, sensing the pressure within the vessel, introducing additional gas-phase reactant into the vessel when the pressure in the vessel has decayed to a predetermined lower pressure limit, P discontinuing the introduction of additional gas-phase reactant into the vessel in response to the pressure in the vessel increasing to a predetermined upper pressure limit, P recording the pressure change data.