Problems with flow degassing
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In our plant’s sulfur processing unit, the gas produced by liquid flow degassing is sent to an exhaust gas incinerator using a steam ejector for combustion and disposal. I’m wondering whether it would be possible to introduce this gas into the Claus reaction furnace; the sulfur present in it can be used as a raw material, and it would also help reduce the sulfur content in the exhaust gases. I seek guidance from experts regarding the feasibility of this approach
Can’t anyone give some advice? I need an answer, please. ** them
This is a good idea; in fact, the design of many projects involves feeding materials into the Claus reactor rather than burning them in exhaust gases.
Some domestic plants that have adopted the Italian KTI process package were designed with this stream of gas being introduced into the reaction furnace.
This will lead to an increase in the percentage of vapor in the reaction gas, which in turn affects the sulfur conversion rate; it also increases the load on the exhaust gas purification system. It is preferable to use air or acidic gas (under pressure) as the driving medium.
Is it feasible to direct this waste gas to the quench tower for rapid cooling and reabsorption? It depends on the composition of the exhaust gases; there is definitely some gaseous sulfur, which will solidify in the quench tower. Will this cause blockages in the packing? I would appreciate some advice from the experts.
Reply to 4# Clauspolunit: I would like to ask further. The exhaust gas incinerator operates under negative pressure, and the gases produced can be transported there using a steam ejector. However, the reaction furnace is under pressure – how can those gases be sent there then? Is a fan used for that?
Reply to 5# adsl121: If it’s to be introduced into the reaction furnace, steam definitely can’t be used. I’m thinking about whether it’s possible to use a fan to extract it; I’m not sure if that would work
Reply to 7# fallenwym: A dedicated fan is used for degassing.
Why is the percentage of steam increasing?
It seems that no precise calculations have been done to determine whether the entry of this gas into the reactor will affect the overall sulfur yield. But it is said that KTI’s process package can achieve below 150.