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[Houston Oilers]

Hi All, 

 

I am looking into process equipment design to condense hydrocarbon(HC) vapor + water vapor to liquid hydrocarbon. Here are the details so far:

 

Rough composition of inlet vapor stream: 

Diesel    45 wt %

Water 45 wt%

lighter HC 7 wt %

Heavier HC 1 wt %

Nitrogen 2 wt %

 

Inlet vapor temperature = 700 F. 

 

Also inlet stream could have high solid contaminants.

 

So far I was thinking to use quench tower ( or Venturi scrubber) with combination of heat exchanger to cool down from 700F to 200 F in 2 stages. First stage will mostly condense HC and 2nd stage will condense water. Afterwards I am thinking to separate oil water mixture through gravity.

 

 

Is this the cheapest way to condense HC and Water?

 

I would appreciate everybody's guidance. 

 

Thank you in advance for help. 

[PingPong]

Designing is more than just throwing some guesses into the air.

You need to provide more info, if you want outsiders to suggest a useful response, such as:

- What is the origin of that vapor stream? Which process? Flow scheme?

- What is the flowrate?

- What is the pressure of that stream?

- What is the destination pressure of the incondensable vapor downstream the new condensing system?

- Is there a maximum allowable pressure drop for the new condensing system?

- What is the nature of the solids present? Sand? Coke? Or what?

- What is the quantity of the solids in the stream?

- Is there a use for the heat that can be recovered from the rather hot (700 ^oF) stream?

- Et cetera.