Patent ID: 11858815
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Environmental technology (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 6:
7. A method to use an alkylamine modified graphene, comprising:
introducing the alkylamine modified graphene into a hydrocarbon-contaminated water such that a hydrocarbon-absorbed alkylamine modified graphene and a recovered water form,
where the hydrocarbon-contaminated water comprises water and a hydrocarbon,
where the alkylamine modified graphene has 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)],
where the alkylamine modified graphene has a weight ratio of alkylamine to graphene in a range of from about 20:1 to 30:1; and

separating the hydrocarbon-absorbed alkylamine modified graphene from the recovered water,
where the hydrocarbon is associated with the hydrocarbon-absorbed alkylamine modified graphene.