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  1. poli60

    kerosene storage tank

    tha data provided by OP would classify the "kerosene" as a low vapour-pressure liquid. in fact the difference between flash point (55.5°C) and max storage temperature (40°C) is 15.5°C, well above the 15°F / 8°C required. in this case, the vapour released from a vent would not create a flammable...
  2. poli60

    kerosene storage tank

    in 30 years of refinery projects, I've seen kero stored in either fixed or floating tanks, but never blanketed with nitrogen. by the way, OP is speaking of a "kero intermediate", without specifying its nature...
  3. poli60

    Recovery from refinery waste

    another trend is the integration of refineries with petrochemical complex.
  4. poli60

    Recovery from refinery waste

    Bala, I've performed several planning studies on this subject in the last 25 years. There are other 3 options not mentioned up to now: - residue hydrocracking; - gasification / IGCC; - asphalt production. The optimal solution could not exist [sad] or (mainly) depend by: - market conditions...
  5. poli60

    Processing Light Hydrocarbons C1-C5

    thank you, george. hoping to see it in the future :-)
  6. poli60

    Processing Light Hydrocarbons C1-C5

    just to be clear: vanadium doe not exist in fuel gas! but i'm ready to be denied, on the base of trusted documents... vanadium could be present in flue gases generated by heavy (liquid or solid) fuels kind regards
  7. poli60

    Processing Light Hydrocarbons C1-C5

    george, it's the first time I read/hear of vanadium in fuel gas. I know/use several process standards (exxon, shell, fw, eni, aramco, fluor, total....) but no one covers this topic (well known for heavy fuel oils). regards
  8. poli60

    HX Design

    your data are inconsistent. check them! reference for gas Cp of C2= https://www.engineeringtoolbox.com/ethylene-d_981.html
  9. poli60

    Ash removal from shale oil ( heavy fuel oil + gasoline mixture)

    in my knowledge: - HFO + gasoline: no clear relation with shale oil; - ash is generated thru the combustion of fuel oil by the salts (mainly chlorides of Na, Mg, Ca....) and metals (organometallic compounds with Fe, V, Ni....) originally included in the oil. you can't filter them. salts, but not...
  10. poli60

    Desalter

    there is a high temperature limit (about 150°C) imposed by the resistance of teflon bushings. moreover, temperatures impact densities and viscosities of the two phases. each crude has an optimal desalting temperature: above that, the driving forces for the separation are penalized.
  11. poli60

    Excessive Sodium content in circulating Amine

    as far as i know of you, you should be already aware of them...but these are my 2 cents. good luck! https://www.amine-gas-treatment.com/amine-reclamation/mobile-unit/
  12. poli60

    Natural Gas Processing Of Offshore Gas .....

    frankly speaking the material you found is very poor, otherwise you would have already had the answers. you can just start with wikipedia.... in principle, there is no difference between offshore and onshore gas. anyway: - pollutants: water, CO2, H2S, N2, mercaptans, He, Hg, heavy hydrocarbons -...
  13. poli60

    Design Philosophy of Kerosene Hydrotreater

    there are thousands of refineries in MENA...and also several "critical" areas... the well-designed refineries (as they are the exxon ones) have a hydrogen chain, where H2 streams rejected by more severe hydrotreatings are used as make-up in less severe HDTs. in this way the total H2 circulation...
  14. poli60

    Good software to draw PFDs? Exvept

    not a trivial task... https://www.eng-tips.com/viewthread.cfm?qid=322180 7 years ago... for the time being nothing better than excel (office)
  15. poli60

    Good software to draw PFDs? Exvept

    @irstuff: thank you! better to know/hear/discuss personal advices of "experts" than googling :-) @itsmoked: you're (partially) right but please consider this is the "chemical process engineering" forum. in our world, PFD is a well known / unique acronym :-)
  16. poli60

    Good software to draw PFDs? Exvept

    autocad is too much for PFDs! of course, you can go to the grocery with either a ferrari or a bike... anything free?
  17. poli60

    Unit Conversion - BTU/SCF to KJ/KG

    This post wouldn't pass an examination at the university (at the high school, too) :-( - SCF is referred to volume at Standard conditions - Standard conditions are not univoque: they have to be specifically declared - kg is referred to a mass - you need a Molecular mass (or a gas density...
  18. poli60

    Low capacity pumps for regenerated TEG

    Thank you, georgeverghese! I appreciate your helpful comments. Kind regards.
  19. poli60

    Low capacity pumps for regenerated TEG

    Thank you for the additional considerations. I wouldn't like to bother anyone but... I have, again, a couple of questions: [smile] a) You propose a helical gear pump instead of a lobe pump. Could you kindly discuss this preference? b) The (very expert) operator was against the proposed rotary...
  20. poli60

    Low capacity pumps for regenerated TEG

    Thank you for your comment. Between the surge drum and the pump there is a heat exchanger to cool down the TEG. Moreover, the surge drum is elevated to take in consideration the effect of the dissolved hydrocarbons.

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