(May 3, 2011 One Question per Day) The sulfur recovery unit is not equipped with an air preheater or an acidic gas preheater
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This post was last edited by zhezi2009.wang on 2011-5-3 21:53. Does the absence of air preheaters and acidic gas preheaters in the sulfur recovery unit have a significant impact on the furnace temperature? Will there be any other effects?
This post was last edited by Clauspolunit on 2011-5-3 08:10. Under normal conditions, the sulfur recovery unit does not require preheating of air and acidic gases. Preheating of air and acidic gases is considered in the design only when lower temperatures occur, especially when the temperature of the reaction furnace under ammonia burning conditions does not meet the required levels.
Reply to 2# Clauspolunit: The view from the first floor is good; I support the first floor. Preheating acidic gas is beneficial for atomized combustion, as it contains some liquid particles ； Preheating the air is quite difficult; due to corrosion issues, the waste heat from the flue gases in this system cannot be utilized, and no other heat sources are available. Using steam is not economical ； I welcome any criticism or suggestions from fellow netizens regarding the above personal views
I agree with the opinion above; whether to set it up or not can be determined based on one’s own actual circumstances.
Whether to install a heater depends on one’s operating conditions. If the temperature of the amine-containing acidic gas itself is not too high, your other acidic gases are prone to crystallizing and blocking the pipes if they are not mixed after being heated. In fact, heating with steam at too low a temperature has little effect on raising the furnace temperature. If the goal is simply to increase the furnace temperature, it is recommended to use superheated steam at 4.1 bar as the heat source. Active participation
I wonder what the temperature of the acid gas and air entering the combustion furnace is in degrees Celsius in your facility? All our devices use preheating before entering the furnace. Reason: To reduce energy consumption; merely through the recovery of waste heat from air, 100,000 yuan can be saved each year compared to not using preheating. For example, the energy required to send air at 20°C into a combustion furnace versus air at 100°C into a reaction furnace is definitely different. From
The design of the preheater should be determined based on the operating conditions of the facility; for cases where the acidic components are relatively complex, it is advisable to design an acid gas preheater. I’m not quite sure about the cost-saving methods mentioned on floor 6; I’d like to ask for some advice
The acid gas was not preheated, while the air was preheated
Our plant has air and acid gas preheating; steam at 3.3 MPa is preheated to 218°C in preparation for operation. We are awaiting to see the actual results… Given the low hydrogen sulfide content in the acid gas, we aim to use the direct current method as much as possible to save energy……
In our plant, the Ultra Opticlaus sulfur recovery system only heats the acidic gas; air (oxygen) is not heated and enters the reaction section to burn.