Project ForgeChemical Technology
Inorganic Chemical Industries
GATE 2011
Medium
The CORRECT sequence of process equipment used in the production of sulphuric acid from sulphur by contact process is
- Aburner, catalytic converter, 98% sulphuric acid absorption tower, oleum absorption column
- Bcatalytic converter, oleum absorption column, 98% sulphuric acid absorption tower, burner
- burner, catalytic converter, oleum absorption column, 98% sulphuric acid absorption tower
- Dburner, oleum absorption column, catalytic converter, 98% sulphuric acid absorption tower
Explanation
Sulphur is burnt to SO2 (burner), catalytically oxidized to SO3 (catalytic converter), then the SO3-rich gas is absorbed first into an oleum absorption column (forming oleum with high SO3 content) and finally into a 98% sulphuric acid absorption tower for the remaining SO3.
Source: GATE CH 2011 (2011)
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