Sulfur Daily Question 2018.11.29
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What is the formation mechanism of the byproduct CS2 in the CLAUS sulfur production process? Answer: The formation mechanism of CS2 is roughly as follows: In a reactor at >1000°C, CS2 is rapidly formed within the flame of methane and sulfur vapor: CH4+2S2→CS2+H2S. Then, CS2 is gradually decomposed in part by H2O and SO2: CS2+2H2O→COS+ H2S; 2 CS2+ SO2→2COS+3/2 S2; CS2+2H2O→CO2+2H2S
The formation mechanism of CS2 is generally as follows: In a reactor at >1000°C, CS2 is rapidly formed inside the flame of methane and sulfur vapor: CH4+2S2→CS2+H2S. Subsequently, CS2 is slowly decomposed in part by H2O and SO2: CS2+2H2O→COS+H2S.
The formation mechanism of CS2 is generally as follows: In a reactor at >1000°C, CS2 is rapidly formed inside the flame of methane and sulfur vapor: CH4+2S2→CS2+H2S. Subsequently, CS2 is slowly decomposed in part by H2O and SO2: CS2+2H2O→COS+H2S.
The formation mechanism of CS2 is generally as follows: In a reactor at >1000°C, CS2 is rapidly formed inside the flame of methane and sulfur vapor: CH4+2S2→CS2+H2S. Then, CS2 is slowly decomposed in part by H2O and SO2: CS2+2H2O→COS+H2S; 2CS2+SO2→2COS+3/2S2; CS2+2H2O→CO2+2H2S
CH4+2S2→CS2+H2S
The formation mechanism of CS2 is generally as follows: In a reactor at >1000°C, CS2 is rapidly formed inside the flame of methane and sulfur vapor: CH4+2S2→CS2+H2S. Subsequently, CS2 is slowly decomposed in part by H2O and SO2: CS2+2H2O→COS+H2S.
The formation mechanism of CS2 is roughly as follows: In a reactor at >1000°C, CS2 is rapidly formed within the flame of methane and sulfur vapor: CH4+2S2→CS2+H2S. Subsequently, CS2 is slowly decomposed in part by H2O and SO2: CS2+2H2O→COS+H2S; 2 CS2+SO2→2 COS+3/2 S2; CS2+2H2O→CO2+2H2S
The mechanism for the formation of the byproduct COS in the CLAUS sulfur production process is roughly as follows: H2S is decomposed at a certain temperature, and the amount of decomposition increases as the temperature rises: H2S→S+H2. The free H2 generated can reduce CO2: CO+H2→CO2+H2O. The CO produced then reacts with sulfur to form COS: CO+1/2S→2COS. CS2 is also partially decomposed by H2O and SO2, which leads to the formation of COS: CS2+2H2O→COS+H2S; 2CS2+SO2→2COS+3/2S2. At the same time, hydrolysis reactions occur that reduce the amount of COS: COS+H2O→CO2+H2S
The formation mechanism of CS2 is generally as follows: In a reactor at >1000°C, CS2 is rapidly produced within the flame of methane and sulfur vapor: CH4+2S2→CS2+H2S
The formation mechanism of CS2 is generally as follows: In a reactor at >1000°C, CS2 is rapidly formed inside the flame of methane and sulfur vapor: CH4+2S2→CS2+H2S. Subsequently, CS2 is slowly decomposed in part by H2O and SO2: CS2+2H2O→COS+H2S.