[12] Patent
[11] Patent No.:GC0011372  
[45] Date of Publishing the Grant of the Patent: 31/Jul /2020                72/2020  
Number of the Decision to Grant the Patent:2020/171407
Date of the Decision to Grant the Patent:27/Jul/2020

[21] Application No.:GC 2017-33670

[22] Filing Date:11/7/2017

[30] Priority:

[33] State [32] Priority date [31] Priority No.
US
14/7/2016
62/362.472

[72] Inventors:1- Ananda K. Nagavarapu،2- Donald J. VICTORY،3- Robert D. Denton

[73] Owner: ExxonMobil Upstream Research Company, P.O. Box 2189, Houston, 77252-2189, Texas, USA

[74] Agent: Saud M. A. Shawwaf Law Office

  

 

  

[51]IPC:
Int. Cl.: F02C 3/22; F25J 3/06, 3/08 (2006.01)

[56] Cited Documents:

-US 20080092539 A1 (Mary Cecelia Massey) (24.April.2008)
-US 20080309087 A1 (Andri Tristan Evulet) (18.December.2008)
 
Examiner: Eng. Sattam M.AlMutairi

[54] METHODS AND SYSTEMS FOR TREATING FUEL GAS
[57] Abstract: Methods and systems for treating a compressed gas stream. The compressed gas stream is cooled and liquids are removed therefrom to form a dry gas stream, which is chilled in a first heat exchanger. Liquids are separated therefrom, thereby producing a cold vapor stream and a liquids stream. A first part of the cold vapor stream is expanded to produce a cold two-phase fluid stream, and a second part of the cold vapor stream is cooled to form a cooled reflux stream. Various streams are fed into a separation column to produce a cold fuel gas stream and a low temperature liquids stream. The second part of the cold vapor stream is cooled by the cold fuel gas stream, which becomes a warmed fuel gas stream that is compressed and used with the low-temperature liquids stream to chill the dry gas stream and to cool the compressed gas stream.
No. of claims: 30     No. of figures: 9


 

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