Organic amine composite absorbent for carbon capture

The invention discloses an organic amine composite absorbent for carbon capture, and belongs to the technical field of carbon dioxide capture, the organic amine composite absorbent comprises an organic amine aqueous solution, an organic additive and an inorganic additive; the organic additive is selected from at least one of L-arginine, L-methionine and L-cysteine, and the addition amount of the organic additive in the organic amine aqueous solution is 500-10000 mg/L; the inorganic additive is selected from at least one of tartrate, metavanadate and molybdate; the addition amount of the inorganic additive in the organic amine aqueous solution is 500-10000 mg/L. According to the invention, the organic additive and the inorganic additive play a synergistic role, so that the product organic amine composite absorbent has excellent corrosion inhibition and anti-degradation effects, and the organic amine composite absorbent is simple in formula component, good in safety and beneficial to industrial large-scale appl