Tail Gas Recovery Syetem

Air can enter the solvent extractor device along with the feed, and enter the entire leaching equipment system to mix with solvent vapor. This part of the air cannot be condensed into a liquid, so it is called "free gas".

Long-term accumulation of free gas will increase the pressure in the system and affect the smooth progress of production. Therefore, free gas must be removed from the system promptly.

However, this part of the air contains a large amount of solvent vapor, and the solvent contained in it needs to be recovered before being discharged.

The free gas from the extractor, water distribution tank, mixed oil storage tank, condenser, and solvent circulation tank is all collected in the air balance tank and then enters the final condenser.

After the solvent contained in the free gas is partially condensed and recovered, there is still uncondensed gas that still contains a small amount of solvent. It should be recovered as much as possible before the waste gas is emptied.