We have sulphur guard bed in heavy naphtha stream which is going to catalytic reformer. The guard bed works on Chimisorbtion and is loaded with Nickel and aluminaosilicate based adsorbent. It reduces sulphur content to 0.1 wt ppm from incoming 0.5 wt ppm stream.
If Incoming naphtha stream sulphur content increased to 500 ppm, what is the expected life of sulphur guard bed? Also, to what extent can it remove sulphur from stream?
Are there special types of adsorbent available to cater for high amount of sulphur in incoming stream?
What is the average life of sulphur guard bed?