What steps have power plants taken to reduce the amount of sulfur oxides released into the air?

Verified Answer :

There are many ways the lessen the sulfur oxide
emission and it depends from power plant to power plant. The common steps in
reducing the sulfur emission are:

1.
improved efficiency of conversion of fuel to electricity (this
would reduce pollutant emissions per unit of electricity generated);

2.
shift to nuclear generation as rapidly as possible since no sulfur
oxide (or particulate) is emitted from nuclear plants;

3.
shift fossil fuel plants to lower sulfur fuels;

4.
removal of sulfur from coal before combustion, or of the sulfur
oxide after combustion, but before it enters the stack: the techniques to be
considered are

a.
coal preparation (conventional and
advanced technology);

b.
solvent refined coal;

c.
low sulfur, low BTU gas from coal;

d.
fluidized bed combustion;

5.      shift fuel consumption from electricity to pipeline grade gas made
from coal or to solar energy.