Using Fig. 5-2, determine energy efficiency of CO2 dissociation into CO and O2 i

ID: 1766471 • Letter: U

Question

Using Fig. 5-2, determine energy efficiency of CO2 dissociation into CO and O2 in thermal plasma in the regime of ideal quenching at specific energy input 3 eV/mol.

90 70 it) 30 10 0.1 0.3 Ev, eV/mol IE Figure 5-2. Energy efficiency of CO2 dissociation as a function of specific energy input. (1, 2), non- (3)M- 5: (4) M-35; calculations of thermal dissociation with (5) ideal and (6) super-ideal quenching ilibrium calculations for supersonic (7) thermal dissociation with quenching rates 10° K/s, (8) 108 K/s, (9) 10 K/s. Different experiments in different RF-CCP discharges: o,V. Experiments in RF-ICP discharges: .Experiments in different arc discharges:&,

Explanation / Answer

It seems from the graph that the ideal quenching has the number 5. Now, considering the vertical line from 3 eV/mol intersects the 5 curve, then taking horizontal line from the intersection intersects the y-axis at 50 %. Hence, the energy efficiency is 50 % for the question quoted.

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Using Fig. 5-2, determine energy efficiency of CO2 dissociation into CO and O2 i

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Using Fig. 5-2, determine energy efficiency of CO2 dissociation into CO and O2 i

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