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Sulfur Recovery Daily Question 2018.12.19

2018-12-20View Original

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What is the impact of the inlet temperature of the Claus reactor on the plant? Answer: The process gas coming from the reactor undergoes a reaction between H2S and SO2 under the action of the catalysts in the reactor bed. This is an exothermic reaction; lower temperatures are more favorable for this reaction. However, if the temperature drops below the dew point of sulfur, liquid sulfur will precipitate, causing the catalyst to lose its activity, which in turn leads to a decrease in the sulfur conversion rate. Furthermore, to achieve a high sulfur conversion rate in the device, it is necessary to hydrolyze COS and CS2 under the action of a catalyst; this hydrolysis reaction is endothermic, and higher temperatures are more favorable for the hydrolysis. Therefore, the inlet temperature of the Claus reactor must be controlled at 210–250°C to ensure a high sulfur conversion rate in the plant.
Reply #22018-12-20
The process gas coming from the reactor causes hydrogen sulfide and sulfur dioxide to react under the action of the catalyst in the reactor bed; this is an exothermic reaction, and lower temperatures are more favorable for it. However, if the temperature falls below the dew point of sulfur, liquid will precipitate, rendering the catalyst inactive and resulting in a decrease in sulfur conversion rate. Furthermore, to achieve a high sulfur conversion rate in the device, it is necessary for COS and CS2 to undergo hydrolysis under the action of a catalyst; this reaction is endothermic, and higher temperatures are favorable for the hydrolysis reaction. Therefore, the inlet temperature of the Claus reactor is controlled at 210–250°C to ensure a high sulfur conversion rate in the plant
Reply #32018-12-20
The process gas coming from the reactor undergoes a reaction between H2S and SO2 under the action of the catalysts in the reactor bed. This is an exothermic reaction; lower temperatures are more favorable for this reaction. However, if the temperature drops below the dew point of sulfur, liquid sulfur will precipitate, causing the catalyst to lose its activity, which in turn leads to a decrease in the sulfur conversion rate. Furthermore, to achieve a high sulfur conversion rate in the device, it is necessary for COS and CS2 to undergo hydrolysis under the action of a catalyst; this reaction is endothermic, and higher temperatures are favorable for the hydrolysis reaction. Therefore, the inlet temperature of the Claus reactor is controlled at 210–250°C to ensure a high sulfur conversion rate for the plant.
Reply #42018-12-20
The process gas coming from the reactor causes hydrogen sulfide and sulfur dioxide to react under the action of the catalyst in the reactor bed; this is an exothermic reaction, and lower temperatures are more favorable for it. However, if the temperature falls below the dew point of sulfur, liquid will precipitate, rendering the catalyst inactive and resulting in a decrease in sulfur conversion rate. Furthermore, to achieve a high sulfur conversion rate in the device, it is necessary for COS and CS2 to undergo hydrolysis under the action of a catalyst; this reaction is endothermic, and higher temperatures are favorable for the hydrolysis reaction. Therefore, the inlet temperature of the Claus reactor is controlled at 210–250°C to ensure a high sulfur conversion rate for the plant.
Reply #52018-12-20
The process gas coming from the reactor causes hydrogen sulfide and sulfur dioxide to react under the action of the catalyst in the reactor bed; this is an exothermic reaction, and lower temperatures are more favorable for it. However, if the temperature falls below the dew point of sulfur, liquid will precipitate, rendering the catalyst inactive and resulting in a decrease in sulfur conversion rate. Furthermore, to achieve a high sulfur conversion rate in the device, it is necessary for COS and CS2 to undergo hydrolysis under the action of a catalyst; this reaction is endothermic, and higher temperatures are favorable for the hydrolysis reaction. Therefore, the inlet temperature of the Claus reactor is controlled at 210–250°C to ensure a high sulfur conversion rate in the plant
Reply #62018-12-21
The process gas coming from the reactor undergoes a reaction between H2S and SO2 under the action of the catalysts in the reactor bed. This is an exothermic reaction; lower temperatures are more favorable for this reaction. However, if the temperature drops below the dew point of sulfur, liquid sulfur will precipitate, causing the catalyst to lose its activity, which in turn leads to a decrease in the sulfur conversion rate. Furthermore, to achieve a high sulfur conversion rate in the device, it is necessary for COS and CS2 to undergo hydrolysis under the action of a catalyst; this reaction is endothermic, and higher temperatures are favorable for the hydrolysis reaction. Therefore, the inlet temperature of the Claus reactor is controlled at 210–250°C to ensure a high sulfur conversion rate for the plant.
Reply #72018-12-21
The process gas coming from the reactor undergoes a reaction between H2S and SO2 under the action of the catalysts in the reactor bed. This is an exothermic reaction; lower temperatures are more favorable for this reaction. However, if the temperature drops below the dew point of sulfur, liquid sulfur will precipitate, causing the catalyst to lose its activity, which in turn leads to a decrease in the sulfur conversion rate. Furthermore, to achieve a high sulfur conversion rate in the device, it is necessary for COS and CS2 to undergo hydrolysis under the action of a catalyst; this reaction is endothermic, and higher temperatures are favorable for the hydrolysis reaction. Therefore, the inlet temperature of the Claus reactor is controlled at 210–250°C to ensure a high sulfur conversion rate for the plant.
Reply #82018-12-21
The process gas coming from the reactor undergoes a reaction with hydrogen sulfide and sulfur dioxide under the action of the catalysts in the reactor bed. This is an exothermic reaction; lower temperatures are favorable for this reaction. However, if the temperature drops below the dew point of sulfur, liquid sulfur will precipitate, causing the catalyst to lose its activity, which in turn leads to a decrease in the sulfur conversion rate.
Reply #92018-12-21
The process gas coming from the reactor causes hydrogen sulfide and sulfur dioxide to react under the action of the catalyst in the reactor bed; this is an exothermic reaction, and lower temperatures are more favorable for it. However, if the temperature falls below the dew point of sulfur, liquid will precipitate, rendering the catalyst inactive and resulting in a decrease in sulfur conversion rate. Furthermore, to achieve a high sulfur conversion rate in the device, it is necessary for COS and CS2 to undergo hydrolysis under the action of a catalyst; this reaction is endothermic, and higher temperatures are favorable for the hydrolysis reaction. Therefore, the inlet temperature of the Claus reactor is controlled at 210–250°C to ensure a high sulfur conversion rate for the plant.
Reply #102018-12-21
Answer: The process gas coming from the reactor causes H2S and SO2 to react under the action of the catalyst in the reactor bed; this is an exothermic reaction. Lower temperatures are favorable for this reaction, but temperatures below the dew point of sulfur will lead to the precipitation of liquid sulfur, thereby affecting the catalyst.
Reply #112018-12-21
Answer: The process gas coming from the reactor causes H2S and SO2 to react under the action of the catalyst in the reactor bed; this is an exothermic reaction. Lower temperatures are favorable for this reaction, but temperatures below the dew point of sulfur lead to the precipitation of liquid sulfur, which in turn affects the catalyst

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