Emerging feedstocks, such as plant-based biomass, shale gas and sequestered CO2, that require new catalytic conversion technologies to produce chemical intermediates, offer excellent opportunities for using tunable solvents.
In situ gasification of oil sands is potentially more energy efficient with reduced emission to atmosphere since acid gases are sequestered to some extent in the reservoir.
If in fact the Amazon is a net source of carbon gas emissions, or if the amounts of gas emitted and sequestered are in a rough permanent equilibrium, some of the fundamental assumptions of the 1998 Kyoto Protocol on climate change may have to be reconsidered.
In this way the unwanted gas will be sequestered for perpetuity.
Therefore for geologically sequestered gas reservoirs with a significant CH4 component, monitoring CH4 as a surrogate for CO2 leakage could be as much as 10 times more sensitive than monitoring CO2 alone.
It's estimated that using CO2 can deliver an extra 30% of crude from oilfields with the added benefit that the gas is then sequestered permanently in the ground.
Just substituting gas for coal would not solve the world's climate problems Europe aspires to emission cuts of 80% or more by 2050, which would require any carbon dioxide from gas plants to be sequestered underground, not emitted to the air.
Eventually, the generated pure CO2 gas can either be sequestered underground or used for enhanced oil recovery [12].
The Ex-Ante Carbon-balance Tool (EX-ACT) is an appraisal system developed by FAO providing estimates on the impact of agricultural and forestry development projects, programmes and policies by measuring the greenhouse gases (GHGs) emitted or sequestered due to project implementation.
But much of the greenhouse gas would need to be sequestered in geological formations underground.
