Why we use Flaring in the crude oil refining industry?

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Nov 23rd, 2007
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erpcochin

Profile Answers by erpcochin Questions by erpcochin

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.

Showing Answers 1 - 5 of 5 Answers

naren.iitr
Profile Answers by naren.iitr

Dec 30th, 2007

to control pressure in various columns and equipments and also to sefely dispose purged gases after combusting them at the stack top.

panicrama
Profile Answers by panicrama

Oct 9th, 2008

Crude oil has many chemical components in it, i.e. Natural Gas, LPG, Gasoline, Diesel, if you can see there, the fraction of those components is different, sometime gasoline is higher, and sometime diesel.
the flaring is used to burn Natural Gas which is very small fraction in crude oil and not economical to store as it must use compressor. Furthermore the flaring of NG can burn poisonous gas contained in crude oil.

erpcochin
Profile Answers by erpcochin

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.

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 point y flare is used ..... flare work on the principle which converts most hazardous gases to less hazardous for example from co to co2 ................ the use of flares as a point of view of environmental pollution and HSE is essential......

pradeep

Oct 2nd, 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 .