| 摘要 |
<p>PROBLEM TO BE SOLVED: To exactly measure and analyze the components in a reaction vessel even when bubbles generate in the reaction vessel of a reaction process apparatus by providing a defoaming/measuring cell on a pipeline arranged in parallel with the reaction vessel and a near-infrared spectroscopic analyzer for analyzing the components in the cell. SOLUTION: The defoaming/measuring cell 1 is connected to the reaction vessel 2 in parallel and the near-infrared spectroscopic analyzer 3 is provided for analyzing the components in the cell 1 in order to exactly measure and analyze the components in the vessel 2. A control part 4 controls the reaction in the vessel 2 based on the analyzed result by the analyzer 3. When the components are not measured and analyzed exactly by the analyzer 3 because of the bubbles generated in the vessel 2, valves V1, V2 are opened and a valve V3 is closed and acetic acid and alcohol are introduced to the cell 1. The valves V1, V2 are then closed and the valve V3 is opened and nitrogen is introduced to the cell 1 from a pressuring source 5 to pressurize and defoam in the cell 1.</p> |
