Biological capture of CO2 from air plus carbon storage as Alternate Vectors for Carbon Storage (AVECS)
The process converts microbial, algal or higher plant biomass to non-buoyant, stable and biologically refractory, water soluble forms for subsurface storage or insoluble forms for soil storage.
Three broad target AVECS forms have been identified:
- Store AVECS in shallow contaminated aquifers or oil and gas reservoirs
- Store insoluble AVECS in natural or synthetic soils as soil OM
- Store AVECS as marine DOM analogs
There are multiple biomass to geologically stable carbon conversion chemistries being developed and tested.