The acid gas entering the middle section of the furnace accounts for one-half to one-third of the total amount of ammonia-containing and clean acid gas. What is the impact on conversion rates?
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:Handshake has little acidic odor. The acid gas entering the middle section of the furnace accounts for one-half to one-third of the total amount of ammonia-containing and clean acid gas. What is the impact on conversion rates?
When burning ammonia in the sulfur recovery unit, to bring the front part of the furnace to the temperature required for ammonia combustion, a portion of the clean acidic gas is usually diverted to the middle section of the furnace. Under normal circumstances, the amount diverted is 10-30%. 1/2 is too high, and it may cause overheating in the furnace.
This post was last edited by Cao Jianqing on 2009-9-3 21:05. A temperature between 1250 and 1300 is generally acceptable. I wonder if it has an impact on the conversion rate:handshake
For the Claus reaction in a reactor, of course, the higher the temperature, the higher the conversion rate. However, too high a temperature can easily damage the furnace lining.
This post was last edited by Cao Jianqing on 2009-9-3 21:06. What was said on the fourth floor isn’t necessarily correct, right? Could you explain why the higher the temperature, the higher the conversion rate?
The Claus reaction that takes place in the reactor is an endothermic reaction (there are relevant posts on this topic already). According to the principles of chemical equilibrium, an increase in temperature certainly helps to improve the conversion rate.
This post was last edited by Cao Jianqing on 2009-9-10 at 19:36. Due to an excessive inflow of material in the middle section, the space behind the combustion furnace is limited, resulting in insufficient residence time and thus a reduced conversion rate; as a result, the liquid sulfur discharged from the back of the furnace has a darker color.
The furnace temperature depends on the concentrations of hydrogen sulfide and oxygen, and has nothing to do with the conversion rate.