US 11,858,815 B2
Graphene modified with linear alkylamines for oil removal from produced water
Tawfik A. Saleh, Dhahran (SA); Fahd Ibrahim Alghunaimi, Dhahran (SA); and Norah W. Aljuryyed, Dhahran (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA); and KING FAHD UNIVERSITY OF PETROLEUM & MINERALS, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA); and KING FAHD UNIVERSITY OF PETROLEUM & MINERALS, Dhahran (SA)
Filed on Sep. 30, 2021, as Appl. No. 17/490,853.
Prior Publication US 2023/0108377 A1, Apr. 6, 2023
Int. Cl. C01B 32/194 (2017.01); C02F 1/28 (2023.01); C02F 1/00 (2023.01); B82Y 40/00 (2011.01); C02F 101/32 (2006.01); C02F 103/36 (2006.01)
CPC C01B 32/194 (2017.08) [C02F 1/001 (2013.01); C02F 1/285 (2013.01); B82Y 40/00 (2013.01); C01P 2004/24 (2013.01); C01P 2004/64 (2013.01); C02F 2101/32 (2013.01); C02F 2103/365 (2013.01); C02F 2305/08 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A composition, consisting of:
an alkylamine modified graphene having a formula R[—CH2-(alkylamine)]x with trace amounts of both an oxygen functional group and a nitrogen functional group coupled to the graphene core,
where R is a graphene core, [—CH2-(alkylamine)] is an alkylamine functional group, and x is a non-zero integer, and
where the alkylamine functional group is one or more selected from the group consisting of [—CH2-(n-propylamine)], [—CH2-(n-hexylamine)], and [—CH2-(n-dodecylamine)], and
where the alkylamine modified graphene has a weight ratio of alkylamine to graphene in a range of from about 20:1 to 30:1.