METHOD FOR CONTROLLING APPARATUS FOR CO2 REMOVAL WITH SOLID AMINE

摘要

PURPOSE:To keep a performance in CO2 adsorption by detecting and memorizing CO2 concentration in treated gas at every moment during an adsorption process, calculating an adsorption performance from the data of measured CO2 concentration and setting a temperature and moisture in accordance with an estimated holding water content of adsorbent when the calculated performance becomes lowered. CONSTITUTION:While the first adsorption reactor 1 is in an adsorption process, CO2 concentration in treatment gas is detected with a CO2 analyzer, e.g., every 30sec and stored into a control computer 6. After the adsorption process is finished, an adsorption performance is calculated from the measured CO2 concen tration data, and a discrimination between a lowered performance and a normal one is carried out. When the performance tends to be lowered, a holding water content of adsorbent is estimated by comparing the data with shapes of break through curves corresponding to various holding water contents. A temperature and moisture corresponding to a deviation of the calculated holding water content from an optimum one are further calculated and determined as set values in the next adsorption process.