Technical renovation of CBA sulfur recovery reactor

CBA reactor is the crucial equipment of four-stage transformation cold bed adsorption technology of the BV Company. In Yinjin Branch of Chongqing Natural Gas Purification Plant General, there were many times of temporary shutdown incidents caused by the collapse of refractory liner and the leakage of catalyst at the manholes of the Claus reactors, which result in choking up of liquid sulfur pipeline. Reasons based on technology and equipment were analyzed. As a result, in the chemical technology aspects, it was pointed out that adding fuel gas mixing with the acid gas could increase the temperature of reactors under low load operation. In the aspect of equipment, improving the insulation construction, ontology structure and inside structure near the manholes were proposed. The technical renovation schemes have already made a significant difference.