[12] Patent
[11] Patent No.:GC0009468  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2018                56/2018  
Number of the Decision to Grant the Patent:2018/142482
Date of the Decision to Grant the Patent:27/Dec/2018

[21] Application No.:GC 2015-29957

[22] Filing Date:27/8/2015

[30] Priority:

[33] State [32] Priority date [31] Priority No.
US
29/8/2014
14/473.343

[72] Inventors:1- Jennifer Lauren SeitterŲŒ2- Tyson Douglas MillerŲŒ3- David Douglas Miller

[73] Owner: Black & Veatch Holding Company, 11401 Lamar Avenue, Overland Park, Kansas 66211, USA

[74] Agent: Abu-Gazaleh Intellectual Property L.L.C

  

 

  

[51]IPC:
Int. Cl.: F25J 1/00 (2006.01)

[56] Cited Documents:

-US 2004-0255617 Al (PARADOWSKI, H.) 23 December 2004
-US 4033735 A (SWENSON, L. K.) 5 July 1977
-US 5363655 A (KIKKAWA, Y. et al.) 15 November 1994
-KR 10-1325586 Bl (INSTITUTE FOR ADVANCED ENGINEERING) 6 November 2013
-US 2009-0145167 Al (TURNER, T. D. et al.) 11 June 2009
 
Examiner: Eng. Yusuf AlRaqabi

[54] DUAL MIXED REFRIGERANT SYSTEM
[57] Abstract: Processes and systems are provided for recovering a liquefied natural gas (LNG) stream from a hydrocarbon-containing feed gas stream using dual closed-loop mixed refrigerant cycles. In particular, the processes and systems described herein can be used to efficiently and effectively liquefy methane from a hydrocarbon-containing feed gas stream with the use of a first refrigeration system and a second refrigeration system utilizing a first mixed refrigerant and a second mixed refrigerant.
No. of claims: 20     No. of figures: 7


 

Note: Any interested individual may, within 3 months of publication of the grant, file objection thereof with the Grievance Committee after payment of grievance fees.