| 초록 |
A new concept of carbon cycle can be suggested in which the carbon regeneration is done with low quality energy after the carbon is oxidized producing high quality energy. If we can get high quality energy by putting in low quality energy, CO2 emission can be minimized with the development of technology gathering waste energies to be utilized in the suggested cycle or ultimately speaking, carbon can be recycled perpetually if the cycle produces no additional CO2. Stabilization of solid CO2 can be explained that the energy barrier is generated when it took the linear form. Once the free molecule is fixed its Gibb's free energy increases partly due to the entropy decrease and partly due to the enthalpy increase. In this way, the conversion of CO2 to carbon is made more favorable and carbon regeneration can be done with lower quality (i.e., lower temperature) energy. Starting from this concept, further development can bring down the reaction temperature lower and lower, and the range of the useful energy will become broader and broader. |
