Bad Condensate

Hi, Actually you are solving the problem on the boiler/steam generator side. On the evaporator side, i dont think it is possible with out adding other equipments. The system of the evaporators is that the "vapors (steam) of the product being concentrated is feed mixed with steam via a venturi compressor to heat the leading evaporators. Ex vapors of the fourt effect is feed to third effect and third to the second and so on, defending on how many effect you have. During the concentration the first to evaporate are the the volatiles, the aroma and essence and eventually mixed with your condensate. you need an aroma/essence recovery plant to recover it, but its a high end product, you to study it further the benefits.

You said that you are using it as a "tracing media" you mean as to reheat the glocose? that good enough, but if you have more of these condensate with enough heat energy available, why not heat the feed water of your boiler.

Evaporators are known to eat a lot of steam. focus on the optimization of its effeciency, like process on the maximum allowable vaccum, maximum conversion of vapor to water on the condenser (take note on the water coloum height, the least the better) play on the least product input temperature and preheating with your condesate will be an added benefit before heating it to desired input temp.

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Right question at the rigth time is better than answer itself. anonymous...

Thank you very much. I really appreciate your advice.

you've not answered my problem. I said before that the condensate from the multiple effect evaporators contains sugar extracts and contanimated therefore 80% of this is taken into a hotwater tank and being utilized as tracer heating.Was it possible to take it to the feed tank I'd have done it.after heating the double jacketed glucose mains the same contanimated condensate is returned to the hotwater tank where it is maintained at a temeperature with an indirect steam heating coil.

My question again remain unanswered?

How can I remove the sugar extracts - with electrostatic precipators or whatever you call them?

Sorry if I haven't satisfy your query.

May I clarify, exactly what do you mean by "sugar extracts"?

In my first reply I mean its the aroma and the essence or the volatiles. (these are usually the alcohol's and ester or the likes) Volatiles are the first to boil and evaporates, because they have low boiling point.

Do we the same meaning as to sugar extracts? If we do,

The one I mention on my reply, Aroma/essence recovery unit is used or installed before the evaporator it self. The volatiles are recovered first before concentrating.

Reverse Osmosis are extensively use in water purification, I know it is already use by the industry in concentration.

Try also browsing molecular sieve, it is already used in the agro-ethanol production (separation of water and ethanol) at this address www.alfalaval.com

Maple Sugar producers in this area use reverse osmosis systems to concentrate the sugars before heating the tree sap in an evaporator pan. They throw away the clean water but the same process might yield recovered condensate for your process.

Can you please detail the process? My last effect I am extracting with a vacuum pump but the condensate now contains sugar extracts and contanimated.

Where do I use the reverse osmosis?

There is a containment problem in this plant. The product- and utiltity-side fluids in the equipment are interconnected.

Look at ways of separating the two streams at the source of the interconnection. The condensate quality will then go up, as will the product yield.