Method for raincloud formation using airborne dimethylamine injection

20220312691

17/218296

March 31, 2021

Raincloud formation depends on the creation of Cloud Condensation Nuclei (CCN) around which water molecules cluster, generating a nano-particles (nano-cluster), then a micro-cluster and finally a water droplet. A collection of such water droplets constitutes a cloud which may spontaneously produce precipitation (in the form of rain, hail or snow) or precipitation induced by cloud seeding. The CCN is the result of nucleation processes. In this patent application, a process is described wherein said nucleation is catalyzed by the injection of a chemical substance, dimethylamine, into the upper atmosphere, preferably through injection of said substance into an electron rich aircraft engine exhaust. The subsequent formation of negatively charged ions has a catalytic effect on the generation of said CCNs.

1. Method for the enhancement and stabilization of nucleation of water vapor by injection into the air of dimethylamine (DMA) into the troposphere at a height appropriate for the formation of rain clouds leading to the formation of cloud condensation nuclei.

2. Method according to claim 1, characterised in that the method is performed by first injecting DMA into the exhaust of an airplane engine, said exhaust being an appropriate plasma environment, containing electrons and ions, so that said DMA is more able to acquire a negative charge by capture of said electrons, thus enhancing the ability of DMA to nucleate with other environmental species, particularly water molecules, or ions and sulfuric acid molecules, or ions.

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