Get Information About Natural Gas Dehydration - Finepac

1
Natural Gas Dehydration 
2
Overview

• Dehydration of natural gas is removal of the
  water that is associated
• with natural gases in vapor form
• When produced from a reservoir, natural gas
  usually contains a large
• amount of water and is generally fully
  saturated Water dew point. This water
• can cause many problems for downstream
  processes and equipment.
• The natural gas industry has recognized that
  dehydration is
• necessary to ensure smooth operation of gas
  transmission lines.

www.finepacindia.in
3
Reasons For Gas Dehydration

• The purpose of the gas dehydration is to remove
  water from natural gas and natural gas liquids.
  When produced in a storage tank, natural gas
  usually contains large quantities of water and is
  generally fully saturated or saturated at the
  water dew point.
• Reduces heating value
• Create gas hydrates
• Create corrosion

www.finepacindia.in
4
Three Methods Of Dehydration
Absorption- The most widely-used method for
industrial dehydration of NG is absorption.
Absorption is usually performed using Triethylene
glycol  sorbent (TEG). Absorption proceeds at low
Natural Gas Dehydration 5 temperatures and the
absorbed water is boiled out from TEG during
regeneration in a reboiler at high temperatures.
Adsorption- The second dehydration method is
the adsorption of water by the solid desiccant.
In this method, water is usually adsorbed on the
molar, silica gel or alumina. Condensation- A
third conventional dehydration method utilizes
gas cooling to convert the water molecules into a
liquid phase, which is then removed from the
stream. Natural gas liquids and condensed
hydrocarbons can also be recovered from NG by
cooling.
www.finepacindia.in
5
Gas Processing Systems   
Gas dehydration is an important process in gas
treatment. The produced gas is saturated with
water, which must be removed.  Failure to do so
may cause problems such as corrosion,
condensation and plugs from ice or gas hydrates.
Other contaminants such as H2S, CO2 and
mercaptans should also be removed. Gas treatment
systems like dehydration and gas sweetening
removes these impurities and makes the gas
suitable for transportation and further use.
www.finepacindia.in
6
Gas Processing Systems   
www.finepacindia.in
7
Reasons For Using TEG

• TEG is more easily regenerated
• TEG has a higher decomposition temperature of
  404F while DEG
• Is 328F.
• Vaporization losses are less then MEG and DEG
• TEG is not too viscous above 70F.

www.finepacindia.in
8
Advantage Of Glycol Dehydration  

• Lower installation cost
• Enhances operational versatility
• Glycol dehydration is continuous rather than
  batch.
• Glycol makeup is easily accomplished.
• Glycol units require less regeneration heat per
  pound of water
• removed.

www.finepacindia.in
9
Glycol Dehydration Unit
www.finepacindia.in
10
Contact Us
Address - S Block, J-25 MIDC, Bhosari, Pune
411026, India.
Email Id - info_at_finepacindia.in
Phone No. - 91-20-66120661
Website -  www.finepacindia.in
11
Thank You!!