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Free gas in the solvent recovery

TIME:2014-10-23 10:59:58FROM: AUTHOR:
Free gas in the solvent recovery, and may vary with the feed air entering the extractor, of the extraction device and into the vapor mixed with a solvent system...

 

Free gas in the solvent recovery, and may vary with the feed air entering the extractor, of the extraction device and into the vapor mixed with a solvent system, this part can not be condensed into a liquid by air, so called "free gas."
Long-term accumulation of free gas will increase the pressure within the system and affect the smooth production. Therefore, timely discharge from the system of free gas. But part of the air containing large amount of solvent vapor in the discharge needs to be contained therein prior to the solvent recovery.

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Free gas in the solvent recovery from leaching, a free gas sub-tank, mix the oil tank, condenser, solvent recycling cans all together in the air balance tank, and then into the final condenser. Some refineries air condenser combined with the final balance tank. After the solvent contained in the free gas is recovered partially condensed, there uncondensed gas still contains a small amount of solvent should be recovered as much as possible before the exhaust gas is vented.