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Major Equipment in Atmospheric Distillation Unit (ADU)
The Atmospheric Distillation Unit (ADU) is the primary processing unit in most oil refineries.
It separates crude oil into various fractions based on their boiling points. The following are the key pieces of equipment found in an ADU:
1. Crude Oil Preheat Furnace:
Purpose:Â Heats the crude oil to a temperature close to its boiling point before it enters the distillation column.
Type:Â Typically, a fired heater that uses fuel gas or oil to generate heat.
2. Atmospheric Distillation Column:
Purpose:Â Separates the heated crude oil into different fractions based on their boiling points.
Components:
Tray or Packing:Â Used to provide contact between the vapor and liquid phases.
Reboilers:Â Heat the bottoms product to generate vapor.
Condenser:Â Cools the vapor to condense it into liquid.
3. Fractionators:
Purpose:Â Further refine certain fractions (e.g., naphtha, kerosene) to meet specific product specifications.
4. Strippers:
Purpose:Â Remove lighter components from heavier fractions to improve product quality.
5. Heat Exchangers:
Purpose:Â Recover heat from the process to reduce energy consumption.
Types:Â Shell-and-tube, plate-and-frame, etc.
6. Pumps:
Purpose:Â Transfer fluids between different equipment.
7. Piping:
Purpose:Â Connects the various equipment in the unit.
8. Instrumentation and Controls:
Purpose:Â Monitor and control the process variables (temperature, pressure, flow rate, etc.).
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portable collapsible silicone pet feeding mat
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M-249 S.A.W.
Bolt to the rear
It's time to eat,
Open the feedtray
The belt-now seat.
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Full metal jackets
Brass-copper-lead,
Tracers and green tips
Barrel hot-red.
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Unhinge the bipod
Position-prone,
Just five-round bursts
This combat zone.
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Wait for your orders
Close is your spare,
Barrel if needed
Cyclic rate, rare.
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Assistant-Gunner
Don't burn yourself,
Switch em' out quick
Do it with stealth.
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Suppressive fire
Keep their heads down,
Violence of action
Savor that sound.
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Now overwhelm them
Make it traumatic,
M-Two-Four-Nine
Squad-Automatic.
••••••••••••••••••••••••••••
© Copyright-11/28/17
Gregory J. Fino
Marine Corps (0311)
•Iraq 2005
#war poetry#war poem#m249saw#m249#infantry#gruntstyle#grunt#war veteran#combat veteran#iraq veteran#gulf war#iraq war#afghanistan war#military veterans#us marines#us army#writerscreed#poetryportal#poetrypardy#poeticstories#rhyming poem#rhyming poetry#spilled poetry#weapons
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