Answered Questions

  • Difference between Distillation and Fractionation?

    Manish Firake

    • Apr 13th, 2018

    Fractionation is a separation process in which a certain quantity of a mixture (gas, solid, liquid, enzymes, suspension, or isotope) is divided during a phase transition, into a number of smaller quan...


    • May 29th, 2017

    Distillation is a separation of one volatile component from a mixture of two or more
    Fractionation is a separation of a certain component from many e.g gasoline

  • Why we use Flaring in the crude oil refining industry?

    Star Read Best Answer

    Editorial / Best Answer


    • Member Since Apr-2011 | Apr 12th, 2011

    dude...its Flaring, not flairing....
    1) While refining crude oil we get non condensable gases like C1 and C2 which are not economical if condensed using extensive pressurising and cooling processes in Refineries. So we divert these gases to Flare.
    2) In the process of refining we sometimes get our equipment over pressurised, this over pressure is released through safety valves to the Flare.
    3) We also get some toxic gases like H2S in the process of refining, we divert these to Flare.
    4) During shutdown and startup of the process plants, to stabilise the plant we also divert some non condensables, over pressure to the Flare.


    • Oct 3rd, 2011

    After the process of distillation of crude we get many undesirable product which are hazardous in nature , if we expose without combustion ,it creates pollution due to this we do combustion of all undesirable product inflar .

    tahir hussain

    • Sep 24th, 2011

    first of all we should have the concept of the gases remove while treating in refinery operations they can be sox , carbon dioxide , carbon mono and other hazardous gases....... now back to key poin...