Sulfur Recovery Daily Question 2018.12.2
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What is the impact of hydrocarbon content in acidic gas on this unit? Answer: Acidic gases from refineries generally contain a certain amount of hydrocarbons. The CLAUS process is used in this facility for sulfur production, and it requires the reaction furnace to reach a temperature of around 1300°C. The presence of certain amounts of hydrocarbons in the acidic gases allows them to burn fully upon entering the reaction furnace, thereby raising its temperature to meet the process requirements. If the hydrocarbon content in the acidic gases is low, or when the facility’s load is low or the concentration of acidic gases is low, the temperature generated by the combustion of these gases will not be sufficient to meet the requirements of the reaction furnace. In such cases, it is necessary to supply an additional amount of gas to the reaction furnace in order to raise its temperature. However, if the hydrocarbon content in the acidic gas is too high or varies significantly, insufficient air supply or an inability to adjust the air supply in line with changes in the hydrocarbon content may lead to combustion of hydrocarbons in a condition of low oxygen availability, resulting in the formation of carbon black. This carbon black contaminates sulfur, turning it brown or even causing it to become black; it also contaminates the catalyst and increases the pressure drop across the reactor bed. Therefore, side reactions that result in carbon black formation are undesirable.
Acidic gas from refineries generally contains a certain amount of hydrocarbons. The CLAUS process is used in this facility for sulfur production, and it requires the reaction furnace to reach a temperature of around 1300°C. The presence of hydrocarbons in the acidic gas allows for their complete combustion within the reaction furnace, thereby raising the furnace temperature to meet the process requirements. If the hydrocarbon content in the acidic gas is low, or when the facility’s load is low or the concentration of acidic gas is low, the temperature generated by the combustion of the acidic gas will not be sufficient to meet the requirements of the reaction furnace. In such cases, it is necessary to supply an additional amount of gas to the reaction furnace in order to raise its temperature. However, if the hydrocarbon content in the acidic gas is too high or varies significantly, insufficient air supply or an inability to adjust the air supply in line with changes in the hydrocarbon content may lead to combustion of hydrocarbons in a condition of low oxygen availability, resulting in the formation of carbon black. This carbon black contaminates sulfur, turning it brown or even causing it to become black; it also contaminates the catalyst and increases the pressure drop across the reactor bed. Therefore, side reactions that result in carbon black formation are undesirable.
Acidic gas from refineries generally contains a certain amount of hydrocarbons. The CLAUS process is used in this facility for sulfur production, and it requires the reaction furnace to reach a temperature of around 1300°C. The presence of hydrocarbons in the acidic gas allows for their complete combustion within the reaction furnace, thereby raising the furnace temperature to meet the process requirements. If the hydrocarbon content in the acidic gas is low, or when the facility’s load is low or the concentration of acidic gas is low, the temperature generated by the combustion of the acidic gas will not be sufficient to meet the requirements of the reaction furnace. In such cases, it is necessary to supply an additional amount of gas to the reaction furnace in order to raise its temperature. However, if the hydrocarbon content in the acidic gas is too high or varies significantly, insufficient air supply or an inability to adjust the air supply in line with changes in the hydrocarbon content may lead to combustion of hydrocarbons in a condition of low oxygen availability, resulting in the formation of carbon black. This carbon black contaminates sulfur, turning it brown or even causing it to become black; it also contaminates the catalyst and increases the pressure drop across the reactor bed. Therefore, side reactions that result in carbon black formation are undesirable.
Acidic gas from refineries generally contains a certain amount of hydrocarbons. The CLAUS process is used in this facility for sulfur production, and it requires the reaction furnace to reach a temperature of around 1300°C. The presence of hydrocarbons in the acidic gas allows for their complete combustion within the reaction furnace, thereby raising the furnace temperature to meet the process requirements. If the hydrocarbon content in the acidic gas is low, or when the facility’s load is low or the concentration of acidic gas is low, the temperature generated by the combustion of the acidic gas will not be sufficient to meet the requirements of the reaction furnace. In such cases, it is necessary to supply an additional amount of gas to the reaction furnace in order to raise its temperature. However, if the hydrocarbon content in the acidic gas is too high or varies significantly, insufficient air supply or an inability to adjust the air supply in line with changes in the hydrocarbon content may lead to combustion of hydrocarbons in a condition of low oxygen availability, resulting in the formation of carbon black. This carbon black contaminates sulfur, turning it brown or even causing it to become black; it also contaminates the catalyst and increases the pressure drop across the reactor bed. Therefore, side reactions that result in carbon black formation are undesirable.
Acidic gas from refineries generally contains a certain amount of hydrocarbons. The CLAUS process is used in this facility for sulfur production, and it requires the reaction furnace to reach a temperature of around 1300°C. The presence of hydrocarbons in the acidic gas allows for their complete combustion within the reaction furnace, thereby raising the furnace temperature to meet the process requirements. If the hydrocarbon content in the acidic gas is low, or when the facility’s load is low or the concentration of acidic gas is low, the temperature generated by the combustion of the acidic gas will not be sufficient to meet the requirements of the reaction furnace. In such cases, it is necessary to supply an additional amount of gas to the reaction furnace in order to raise its temperature. However, if the hydrocarbon content in the acidic gas is too high or varies significantly, insufficient air supply or an inability to adjust the air supply in line with changes in the hydrocarbon content may lead to combustion of hydrocarbons in a condition of low oxygen availability, resulting in the formation of carbon black. This carbon black contaminates sulfur, turning it brown or even causing it to become black; it also contaminates the catalyst and increases the pressure drop across the reactor bed. Therefore, side reactions that result in carbon black formation are undesirable.
Acidic gas from refineries generally contains a certain amount of hydrocarbons. The CLAUS process is used in this facility for sulfur production, and it requires the reaction furnace to reach a temperature of around 1300°C. The presence of hydrocarbons in the acidic gas allows for their complete combustion within the reaction furnace, thereby raising the furnace temperature to meet the process requirements. If the hydrocarbon content in the acidic gas is low, or when the facility’s load is low or the concentration of acidic gas is low, the temperature generated by the combustion of the acidic gas will not be sufficient to meet the requirements of the reaction furnace. In such cases, it is necessary to supply an additional amount of gas to the reaction furnace in order to raise its temperature. However, if the hydrocarbon content in the acidic gas is too high or varies significantly, insufficient air supply or an inability to adjust the air supply in line with changes in the hydrocarbon content may lead to combustion of hydrocarbons in a condition of low oxygen availability, resulting in the formation of carbon black. This carbon black contaminates sulfur, turning it brown or even causing it to become black; it also contaminates the catalyst and increases the pressure drop across the reactor bed. Therefore, side reactions that result in carbon black formation are undesirable.
Acidic gas from refineries generally contains a certain amount of hydrocarbons. The CLAUS process is used in this facility for sulfur production, and it requires the reaction furnace to reach a temperature of around 1300°C. The presence of hydrocarbons in the acidic gas allows for their complete combustion within the reaction furnace, thereby raising the furnace temperature to meet the process requirements. If the hydrocarbon content in the acidic gas is low, or when the facility’s load is low or the concentration of acidic gas is low, the temperature generated by the combustion of the acidic gas will not be sufficient to meet the requirements of the reaction furnace. In such cases, it is necessary to supply an additional amount of gas to the reaction furnace in order to raise its temperature. However, if the hydrocarbon content in the acidic gas is too high or varies significantly, insufficient air supply or an inability to adjust the air supply in line with changes in the hydrocarbon content may lead to combustion of hydrocarbons in a condition of low oxygen availability, resulting in the formation of carbon black. This carbon black contaminates sulfur, turning it brown or even causing it to become black; it also contaminates the catalyst and increases the pressure drop across the reactor bed. Therefore, side reactions that result in carbon black formation are undesirable.
The hydrocarbon content in the acidic gas from this unit is less than 3% (V). If the hydrocarbon content in the acidic gas increases, it will lead to incomplete combustion of hydrocarbons in the reaction furnace, resulting in the formation of carbon black, which darkens the color of liquid sulfur and causes carbon deposition in the catalyst bed. This severely affects the quality of the products produced by the unit as well as its normal operation； If the hydrocarbon content in the acidic gas is too low, it is also detrimental to the facility; it lowers the temperature in the reaction furnace, resulting in incomplete combustion of ammonia. Therefore, a small amount of fuel gas is added artificially to the reaction furnace to maintain its temperature.
Acidic gases from refineries generally contain a certain amount of hydrocarbons. The CLAUS process is used in this facility for sulfur production, and it requires the reaction furnace to reach a temperature of around 1300°C. The presence of certain amounts of hydrocarbons in the acidic gases allows them to burn completely upon entering the reaction furnace, thereby enhancing its performance
Acidic gas from refineries generally contains a certain amount of hydrocarbons. The CLAUS process is used in this facility for sulfur production, and it requires the reaction furnace to reach a temperature of around 1300°C. The presence of hydrocarbons in the acidic gas allows for their complete combustion within the reaction furnace, thereby raising the furnace temperature to meet the process requirements. If the hydrocarbon content in the acidic gas is low, or when the facility’s load is low or the concentration of acidic gas is low, the temperature generated by the combustion of the acidic gas will not be sufficient to meet the requirements of the reaction furnace. In such cases, it is necessary to supply an additional amount of gas to the reaction furnace in order to raise its temperature. However, if the hydrocarbon content in the acidic gas is too high or varies significantly, insufficient air supply or an inability to adjust the air supply in line with changes in the hydrocarbon content may lead to combustion of hydrocarbons in a condition of low oxygen availability, resulting in the formation of carbon black. This carbon black contaminates sulfur, turning it brown or even causing it to become black; it also contaminates the catalyst and increases the pressure drop across the reactor bed. Therefore, side reactions that result in carbon black formation are undesirable.
Acidic gas from refineries generally contains a certain amount of hydrocarbons. The CLAUS process is used in this facility for sulfur production, and it requires the reaction furnace to reach a temperature of around 1300°C. The presence of hydrocarbons in the acidic gas allows for their complete combustion within the reaction furnace, thereby raising the furnace temperature to meet the process requirements. If the hydrocarbon content in the acidic gas is low, or when the facility’s load is low or the concentration of acidic gas is low, the temperature generated by the combustion of the acidic gas will not be sufficient to meet the requirements of the reaction furnace. In such cases, it is necessary to supply an additional amount of gas to the reaction furnace in order to raise its temperature. However, if the hydrocarbon content in the acidic gas is too high or varies significantly, insufficient air supply or an inability to adjust the air supply in line with changes in the hydrocarbon content may lead to combustion of hydrocarbons in a condition of low oxygen availability, resulting in the formation of carbon black. This carbon black contaminates sulfur, turning it brown or even causing it to become black; it also contaminates the catalyst and increases the pressure drop across the reactor bed. Therefore, side reactions that result in carbon black formation are undesirable.