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Surely your are joking? Surely you know it depends on the distances involved and the rate at which the crude oil is being pumped? If you don't know that, its hopeless. Milt Beychok Milton Beychok (Visit me at www.air-dispersion.com) .

dcasto: I have not checked your calculations, so I have no comment on them. However, I think that you should also specify at what temperature and pressure your air density was calculated. I assume it was the same 43 deg C and 1 atm at which you calculated the EtO gas density. Regards, Milt...

Mexan: Both Natco and How-Baker still have websites and still offer desalters ... no matter who the ownership is. See www.natcogroup.com and www.howebakeruk.com Milton Beychok (Visit me at www.air-dispersion.com) .

clementer: Rather than trusting books or patents, your best bet is to contact either Howe-Baker or Natco ... two major manufacturers of electrostatic desalters. Milton Beychok (Visit me at www.air-dispersion.com) .

Koolaid11: To answer your first question about "... converting airflow and H2S ppm to lbs of H2S per hour or day (ex: 3,000cfm with 10ppm). ", we would need to know whether the ppm is by volume or by weight and we would also need to know the temperature and pressure at which the cfm were...

You will find the following article on the Citizendium online encyclopedia to be useful: Deaerator Milton Beychok (Visit me at www.air-dispersion.com) .

Read this article in the online Citizendium encyclopedia which is quite detailed: Claus process Milton Beychok (Visit me at www.air-dispersion.com) .

sweetfood: I would be interested to know where the vent is routed? Milton Beychok (Visit me at www.air-dispersion.com) .

nevine: I think you probably meant "convection" rather than "convention". Milton Beychok (Visit me at www.air-dispersion.com) .

PetroSynergy: Your warning does not apply to entrained liquid knock-drums in gas service. In the case of high-pressure liquids flowing into a lower pressure "flash drums", there is a partial vaporization of the liquid which causes the liquid temperature to drop. That is is known as...

processengineer1998: Want an article that includes a hyper link to an online graph used to obtained the compressibility factor Z of natural gases? That also includes the calculation of the Z factor of pure gases by the van der Waals equation, Redlich-Kwong equation, Soave-Redlich-Kwong...

Barhp: You might find it interesting to read this article in the online Citizendium encyclopedia: Dew point Milton Beychok (Visit me at www.air-dispersion.com) .

CJKruger: To the best of my knowledge, it has not been a problem. Do you have info otherwise? Milton Beychok (Visit me at www.air-dispersion.com) .

If the tank has a vent to the atmosphere, it will emit H2S vapors whenever the tank level rises. Rather than depending upon a hydrocarbon layer (floating on top of the sour water) to absorb the H2S, it is better to: Route the vent through a small amine absorber using lean amine from the...

Just one small addition to what zdas04 gave you: 1% by volume is 10,000 ppm by volume. If you want to know ppm by weight, then we need to know the molecular weights of your gases A and B. Milton Beychok (Visit me at www.air-dispersion.com) .

I seem to remember that in the distillation of light hydrocarbon-water mixtures, water behaves as if it were ethane. That might give you a clue as to why you are getting different answers. Milton Beychok (Visit me at www.air-dispersion.com) .

baily1: A better idea is to route the tank vent gas through a small amine absorber that uses lean amine from your main amine unit and returns rich amine to your main amine unit. Milton Beychok (Visit me at www.air-dispersion.com) .

rlrChemE: Please explain what "interface" you are talking about? Naphtha and butane liquids and are mutually soluble and they have no "interface". Milton Beychok (Visit me at www.air-dispersion.com) .

decasto has already provided you with one gas that fits your criteria. Water has a critical pressure of 3205 psia and a critical temperature of 374 deg C ... which fits your two criteria. Milton Beychok (Visit me at www.air-dispersion.com) .

The best way to obtain an accurate cost estimate is from some of the major refinery engineering and construction companies like Fluor, KBR, Bechtel or Jacobs ... just to name a few. Milton Beychok (Visit me at www.air-dispersion.com) .