Sulfur Recovery Daily Question 2018.12.20
Thread Content
What is the impact of the inlet temperature of the exhaust gas purification reactor on the system? Answer: The exhaust gas coming from the Claus process causes S and SO2 to react with H2 under the action of the catalysts in the reactor bed. This is an exothermic reaction, and lower temperatures are more favorable for it. However, COS and CS2, which have not been completely hydrolyzed in the Claus reactor, must be fully hydrolyzed in the exhaust gas purification reactor; this hydrolysis is an endothermic reaction, and higher temperatures are more conducive to it. Therefore, the inlet temperature of the exhaust gas purification reactor is controlled at 270–300°C to ensure complete reduction of S and SO2 as well as complete hydrolysis of COS and CS2.
The main reactions that occur in the exhaust gas purification reactor are the reduction of SO2 and S to H2S, as well as the hydrolysis of COS and CS. Since the reactions of S0 and S are exothermic, lower temperatures are favorable for these reactions. However, the hydrolysis reactions of COS and CS are endothermic, so higher temperatures are advantageous for them; therefore, a higher reaction temperature is required. Taking everything into account, the reactor bed temperature should be maintained between 300 and 350°C to meet the production requirements
The exhaust gas coming from the Claus process causes S and SO2 to react with H2 under the action of the catalysts in the reactor bed; this is an exothermic reaction, and lower temperatures are more favorable for it. However, COS and CS2, which have not been completely hydrolyzed in the Claus reactor, must be fully hydrolyzed in the exhaust gas purification reactor, and this hydrolysis is an endothermic reaction – higher temperatures are more conducive to it. Therefore, the inlet temperature of the exhaust gas purification reactor is controlled at 270–300°C to ensure complete reduction of S and SO2 as well as complete hydrolysis of COS and CS2.
The exhaust gas coming from the Claus process causes S and SO2 to react with H2 under the action of the catalysts in the reactor bed; this is an exothermic reaction, and lower temperatures are more favorable for it. However, COS and CS2, which have not been completely hydrolyzed in the Claus reactor, must be fully hydrolyzed in the exhaust gas purification reactor, and this hydrolysis is an endothermic reaction – higher temperatures are more conducive to it. Therefore, the inlet temperature of the exhaust gas purification reactor is controlled at 270–300°C to ensure complete reduction of S and SO2 as well as complete hydrolysis of COS and CS2.
The exhaust gas coming from the Claus process causes S and SO2 to react with H2 under the action of the catalysts in the reactor bed; this is an exothermic reaction, and lower temperatures are more favorable for it. However, COS and CS2, which have not been completely hydrolyzed in the Claus reactor, must be fully hydrolyzed in the exhaust gas purification reactor, and this hydrolysis is an endothermic reaction – higher temperatures are more conducive to it. Therefore, the inlet temperature of the exhaust gas purification reactor is controlled at 270–300°C to ensure complete reduction of S and SO2 as well as complete hydrolysis of COS and CS2.
The exhaust gas coming from the Claus process causes S and SO2 to react with H2 under the action of the catalysts in the reactor bed; this is an exothermic reaction, and lower temperatures are more favorable for it. However, COS and CS2, which have not been completely hydrolyzed in the Claus reactor, must be fully hydrolyzed in the exhaust gas purification reactor, and this hydrolysis is an endothermic reaction – higher temperatures are more conducive to it. Therefore, the inlet temperature of the exhaust gas purification reactor is controlled at 270–300°C to ensure complete reduction of S and SO2 as well as complete hydrolysis of COS and CS2.
The exhaust gas coming from the Claus process causes S and SO2 to react with H2 under the action of the catalysts in the reactor bed; this is an exothermic reaction, and lower temperatures are more favorable for it. However, COS and CS2, which have not been completely hydrolyzed in the Claus reactor, must be fully hydrolyzed in the exhaust gas purification reactor, and this hydrolysis is an endothermic reaction – higher temperatures are more conducive to it. Therefore, the inlet temperature of the exhaust gas purification reactor is controlled at 270–300°C to ensure complete reduction of S and SO2 as well as complete hydrolysis of COS and CS2.
The main reactions that occur in the exhaust gas purification reactor are the reduction of SO2 and S to H2S, as well as the hydrolysis of COS and CS. Since the reactions of S0 and S are exothermic, lower temperatures are favorable for these reactions. However, the hydrolysis reactions of COS and CS are endothermic, so higher temperatures are advantageous for them; therefore, a higher reaction temperature is required.
The exhaust gas coming from the Claus process causes S and SO2 to react with H2 under the action of the catalysts in the reactor bed; this is an exothermic reaction, and lower temperatures are more favorable for it. However, COS and CS2, which have not been completely hydrolyzed in the Claus reactor, must be fully hydrolyzed in the exhaust gas purification reactor, and this hydrolysis is an endothermic reaction – higher temperatures are more conducive to it. Therefore, the inlet temperature of the exhaust gas purification reactor is controlled at 270–300°C to ensure complete reduction of S and SO2 as well as complete hydrolysis of COS and CS2.
Answer: The exhaust gas coming from the Claus unit causes S and SO2 to react with H2 under the action of the catalysts in the reactor bed; this is an exothermic reaction, and lower temperatures are more favorable for it. However, the exhaust gas contains substances that have not been completely hydrolyzed within the Claus reactor
Answer: The exhaust gas coming from the Claus unit causes S and SO2 to react with H2 under the action of the catalysts in the reactor bed; this is an exothermic reaction, and lower temperatures are more favorable for it. However, the exhaust gas contains substances that have not been completely hydrolyzed within the Claus reactor