condensing gasoline vapor 1

[cambria]

I have to drop the temp of a fuel vapor stream (continuous)to condense the vapor. Input temperature of the stream will be about 4 deg C, modestly dehumidified. Flow rate is variable, but 30-40 liters/minute max. What size compressor and how should I configure this unit? (apologies for my naivity, I have run down the cyber hallway to talk to you ME guys.

thanks for the help.

 

[srfish]

Where you said compressor, did you mean condenser? I suggest you talk to a heat exchanger manufacturer. You need to supply more process information like what is on a heat exchanger specification sheet. What are you using as a coolant?

 

[cambria]

Thanks. Yes I did mean condenser. In fact I am taking your advice as we speak, and perhaps more. Its time to hire someone who can speak refrigerese.

Thanks for responding. It is an important experiment and we need to have an expert in on it.

thanks again

 

[TXiceman]

Over the years, I have designed a number of refrigerated units to condense gasoline vapors. Some are at gasoline loading terminals and some at storage terminals.

Alternate designs would be using a blower to put the vapor through a carbon bed absorption unit which would require two beds so that you can shut down and regenerate one.

You could also look at some sort of lean oil stripping or such unit.

A number of smaller refrigeration packagers should be able to help you, but be careful that they have the experience and can actually do the design work. You don't want a Mom and Pop operation out of the garage on alternate weekends.

Ken

Ken
KE5DFR

 

[cambria]

Thanks Ken. Yes, this is a smaller scale experiment. Any recommended players? (Assuming this is in line with Eng Tips rules).

doug

 

[ScottMECHE]

I work in a petroleum products terminal and we recently installed a vapor recovery unit with the carbon absorption unit described above. It was manufactured by a company called John Zink. They also offer training on the subject.

 

[cambria]

Thanks Scott, I'll give them a call. I am quite sad that I made faces at my thermo prof rather than listen...

At this moment I have a device that will get me to -40C, but the exchange rate cant be too high.

thanks again.

 

[MortenA]

As far as i know spiral type HX should be well suited for condensing vapours when mounted verticall.

Another company to look for for vapour recovery would be Coolsorption (Aker Kværner group):

http://www.coolsorption.dk/

Best regards

Morten

 

[cambria]

Thanks Morten - good site. I am developing a very low cost system, low capacity but continuous duty. Vertical spiral type HX - yes, my stage 2 (de-watered vapors) is a primitive of this.

doug