[12] Patent
[11] Patent No.:GC0007572  
[45] Date of Publishing the Grant of the Patent: 30/Apr /2018                48/2018  
Number of the Decision to Grant the Patent:2018/126005
Date of the Decision to Grant the Patent:15/Apr/2018

[21] Application No.:GC 2012-20841

[22] Filing Date:24/3/2012

[30] Priority:

[33] State [32] Priority date [31] Priority No.

[72] Inventors:1- Sunder Ramachandran،2- Vladimir Jovancicevic،3- Kyle C. Cattanach،4- Michael P. Squicciarini

[73] Owner: Baker Hughes Incorporated, 2929 Allen Parkway Suite 2100, Texas 77019, Houston, USA

[74] Agent: Saba & Co. T.M.P




Int. Cl.: C07C7/20; C10G29/02; C10G29/04; C10G29/06; C10G29/20; C10G29/22; C10G29/24; C10L3/10; C09K8/52; C10G19/02 (2006.01)

[56] Cited Documents:

-US 4680127 A (EDMONDSON JAMES G [US]) 04 July 1987
Examiner: Rami Al-Ghamdi

[57] Abstract: The use of neutral aqueous solutions of glyoxal (pH approximately 6 to 8.5) scavenges H2S that is present in natural gas and in oil better than glyoxal alone or base alone. The resulting scavenger combination significantly in¬creases the reaction rate and the overall scavenging efficiency, i.e. capacity over glyoxal used alone. A buffer may be optionally used. In another embodi¬ment, the combination of non-nitrogen-containing surfactants and glyoxal results in a significant increase in the reaction rate and the overall scavenging efficiency, i.e. capacity as compared to glyoxal used alone.
No. of claims: 18     No. of figures: 5


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