Question

name the catalyst used for conversion of SO2 to so3 in contact process how is oelum form from S3 in this process​

Answer 1

Answer:

Adding an excess of oxygen to sulfur dioxide in the presence of the catalyst vanadium pentoxide at 450 °C and 1-2 atm. The sulfur trioxide formed is added to sulfuric acid which gives rise to oleum The oleum is then added to water to form sulfuric acid which is very concentrated.

Answer 2

The catalyst used - vanadium pentoxide

Explanation:

• The catalyst used - vanadium pentoxide

• Oleum is a term used for a fuming sulfuric acid that is composed of various compositions of sulfur trioxide in sulfuric acid

The contact process in a brief is as follows -

• sulphur dioxide is formed

• conversion of sulphur dioxide into sulphur trioxide (it is the reversible reaction)

• conversion of sulfur trioxide to concentrated sulphuric acid

The temperature used is 450 °C and pressure up to 1-2 atm.

The sulfur trioxide formed is reacted to sulfuric acid that forms oleum .