Abstract

Increase of carbon dioxide (CO₂) concentration in the atmosphere due to human industrial activity makes significant contribution to global warming: 38 Bln. tons of CO₂ are released to atmosphere per annum, while over 80% of that amount is due to burning fossile fuel. That is why research and development of CO₂ release reduction technologies – sequestration - is a prominent and urgent need.
СО₂ sequestration in general includes the following processes:
a)СО₂ build-up in the biomass of crops and plants, aquaculture and soil humus.
b)СО₂ underground storage and burying in the gas/oil, coal and rock salt reservoirs, or capture in the waste rock materials.
c)СО₂ recycling to produce valuable chemical products.

Advantages of СО₂ recycling technologies are not only the reduction of СО₂ releases to atmosphere, but also production of valuable chemical products. There are considered three ways of СО₂ recycling:
•Catalytic СО₂ recycling process, based on use of efficient catalysts, which reduces energy consumed for СО₂ conversion while ensures high process selectivity and high product output.
•Plasma-chemical СО₂ recycling process is based on chemical reactions which proceed in a cold and non-equilibrium plasma of microwave discharge.
•Radiation-chemical СО₂ recycling process is based on chemical reactions induced by ionizing irradiation.

It is shown that industrial technology of CO₂ recycling achieves self-recoupment within 4 to 5 years through the use of appropriate combination of catalytic, plasma-chemical and radiation-chemical processes of СО₂ recycling.