Graphene adsorbent for crude oil desulfurization

[0020] A graphene adsorbent for crude oil desulfurization, comprising the following raw materials in parts by weight: 2.4 parts of diethanolamine, 10 parts of graphene, 1.5 parts of bismuth oxide, 2 parts of iron oxide, 2.2 parts of aluminum oxide, 0.6 part of sodium nitrite, 4 parts of acetaldehyde, 46 parts of ethylene glycol, 1.8 parts of polyacrylamide, 5 parts of strong alkali solution, 1.6 parts of surfactant, 2 parts of phenol and 6.5 parts of Radix Radix. Surfactant adopts cationic surfactant, strong alkali solution adopts sodium hydroxide solution.

[0021] The preparation method of the described graphene adsorbent for crude oil desulfurization, concrete steps are as follows:

[0022] Step 1: Crush Radix Radix at minus 5 degrees Celsius and pass through a 20-mesh sieve, then add water 7 times the weight of Radix Radix Radix and soak at room temperature for 4 hours, stir evenly, add enzymes for enzymolysis, and obtain Radix Radix Radix Enzymolysis Solution;

[0023] Step

[0028] A graphene adsorbent for crude oil desulfurization, comprising the following raw materials in parts by weight: 2.7 parts of diethanolamine, 13 parts of graphene, 1.8 parts of bismuth oxide, 2.6 parts of iron oxide, 2.8 parts of aluminum oxide, 1 part of sodium nitrite, 5.5 parts of acetaldehyde, 52 parts of ethylene glycol, 3.5 parts of polyacrylamide, 7 parts of strong alkali solution, 2.4 parts of surfactant, 2.4 parts of phenol and 7.3 parts of Radix Radix. Graphene adopts multi-layer graphene, and the particle size of bismuth oxide, iron oxide and aluminum oxide is 0.07mm.

[0029] The preparation method of the described graphene adsorbent for crude oil desulfurization, concrete steps are as follows:

[0030] Step 1: Crush Radix Radix at minus 6 degrees Celsius and pass through a 40-mesh sieve, then add water 9 times the weight of Radix Radix and soak it at room temperature for 4 hours, stir well and then add enzymes for enzymolysis. During the enzymolysis process, low

[0036] A graphene adsorbent for crude oil desulfurization, comprising the following raw materials in parts by weight: 3 parts of diethanolamine, 16 parts of graphene, 2.3 parts of bismuth oxide, 3.4 parts of iron oxide, 3.3 parts of aluminum oxide, 1.2 parts of sodium nitrite, 7.5 parts of acetaldehyde, 59 parts of ethylene glycol, 3.6 parts of polyacrylamide, 8 parts of strong alkali solution, 2.7 parts of surfactant, 2.8 parts of phenol and 8 parts of Radix Radix. The surfactant is a compound surfactant, and the strong alkali solution is a mixture of potassium hydroxide solution and lithium hydroxide solution.

[0037] The preparation method of the described graphene adsorbent for crude oil desulfurization, concrete steps are as follows:

[0038] Step 1: Pulverize Radix Radix at minus 8 degrees Celsius and pass through a 20-mesh sieve, then add water 9 times the weight of Radix Radix and soak at room temperature for 4 hours, stir evenly, add enzymes for enzymolysis, and obtain