cooling of a gaseus mixture of water and hydrocarbons

[PaulLag]

Hi there !

I'd like to ask you some help in a very specific topic that at the moment I don't know how to approach.

following is the topic

I have to realize a module to calculate a cooler of a mixture of hydrocarbons, water and gases.
During the process, there is a partial condensation of water and hydrocarbons, likely the heavier ones.

I am completely in the dark.

Please can anyone give me any suggestion, or suggesting me some correlations ?

Thanks !!!

 

[chicopee]

You'll have to describe I more detail the process that involve the three or components and name the components, otherwise we are left in the cold on helping you.

 

[zdas04]

You have to start with the mass and bulk temperature of the gas mixture. I would look at the amount of energy required to lower the temperature to the first component's boiling point. Then look at how much energy must be removed to condense that component at a constant temperature. Then lower the temperature to the next component's boiling point (using the liquid specific heat for the condensed portion). And so forth until you reach your target temperature. The components that are below their boiling point will be liquid and the components that are above their boiling point will be gas (you won't have "partial condensation" unless your target pressure is exactly the boiling point of one of the components, you cannot lower the temperature below the boiling point of a component without condensation sucking the energy from the process until condensation is complete).

Summing the energy traverses would tell you how much energy you must remove to reach the target temperature (you didn't really say what the goal of the exercise was, so I'm assuming cooler sizing).

David Simpson, PE
MuleShoe Engineering

"Belief" is the acceptance of an hypotheses in the absence of data.
"Prejudice" is having an opinion not supported by the preponderance of the data.
"Knowledge" is only found through the accumulation and analysis of data.
The plural of anecdote is not "data"

 

[Latexman]

Find a copy of Kern's Process Heat Transfer. It should be very helpful to you. It covers the process and heat transfer calculations.

Good luck,
Latexman

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