Viscosity reduction system for microwave extraction of heavy oil and preparation method thereof

A viscosity reduction system for microwave extraction of heavy oil, wherein the viscosity reduction system is a magnetic graphene oxide;

• wherein the magnetic graphene oxide is compounded by Fe3O4 nanospheres and a graphene oxide;
• wherein the mass ratio of the Fe3O4 nanospheres to the graphene oxide is 2:1;
• the viscosity reduction system is produced by the following steps:
• (1) preparing a catalyst suspension:
• adding the Fe3O4 nanospheres into deionized water to obtain a suspension, and adjusting the suspension to be acidic by an acid to obtain a catalyst suspension;
• (2) preparing a carrier solution:
• adding graphene oxide into deionized water, and stirring to obtain a graphene oxide carrier solution;
• (3) placing the catalyst suspension obtained in step (1) in a flask, introducing nitrogen into the flask, and heating in a constant temperature water bath of 60° C.;
• (4) adding the graphene oxide carrier solution into the flask heated in the constant temperature water bath of step (3) dropwise while stirring to obtain a mixed solution;
• wherein the weight ratio of the graphene oxide carrier solution to the catalyst suspension is 1:2;
• (5) placing the mixed solution obtained in step (4) in an infiltration bag to obtain a magnetic graphene oxide precipitate;
• and
• (6) placing the magnetic graphene oxide precipitate obtained in step (5) in a vacuum oven for drying to obtain the viscosity reduction system.