A stream containing pulverized petroleum coke (95% C, 3% S, 1% N, 1% H) is fed to a furnace where it reacts with air. Due to its high SO2 content, the combustion gases enter through the bottom of a gas scrubber and come into contact with a mixture of water with lime, which enters through the upper part of the scrubber. Combustion gases without SO2 exit through the top of the scrubber while the resulting solution (water + gypsum) is transported to a filter system where the water is separated from the gypsum.

Please read the problem description carefully. Draw the process diagram on a piece of paper.