Patent ID: 11959021
Assignee: CONOCOPHILLIPS COMPANY
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  E  Y | IPC C  E

Claim 0:
1. A method of making a proppant for use in hydraulic fracturing of a well, said method comprising:
a) capturing CO2 from a flue gas stream or from air;
b) reacting said captured CO2 with electricity or heat or both to produce carbon nanomaterial (CNM);
c) sonication and/or filtration of said CNM;
d) optional shaping said CNM by vacuum forming or molding or agglomeration;
e) said CMN having:
(1) a crushing rate of <10% at 28 MPa,
(2) a bulk density of 1.5-2.5 g/cm3,
(3) a size of 0.1-2 mm, and
(4) a porosity of 30-50%;

f) size sorting said CMN to produce a size range of 20 mesh to 40 mesh, said size sorted CNM being suitable for use as a proppant.