Continuous process for the removal of hydrogen sulfide from gas

Claim 1

A CONTINUOUS PROCESS FOR THE REMOVAL OF HYDROGEN SULPHIDE FROM GAS, WHICH PROCESS COMPRISES PASSING THE GAS SUBSTANTIALLY VERTICALLY THROUGH A DOWNWARDLY-MOVING PACKED BED OF HYDRATED-IRON-OXIDE-CONTAINING PURIFICATION MATERIAL, THE HORIZONTAL CROSS-SECTION OF WHICH BED IS COINCIDENT WITH THE CROSS-SECTION OF THE GAS PATH THROUGH IT AT ANY LEVEL, SUPPLYING PURIFICATION MATERIAL TO THE BED FROM A SUPPLY LOCATION ABOVE THE BED, DISCHARGING SULFURIZED PURIFICATION MATERIAL AT A DISCHARGE LOCATION BENEATH THE BED, TRAVERSING DISCHARGED PURIFICATION MATERIAL FROM THE DISCHARGE LOCATION, TO THE SUPPLY LOCATION IN A CONDUIT BY MECHANICAL ELEVATING MEANS FORMING THE DISCHARGE LOCATION TO THE SUPPLY LOCAAT LEAST IN AN UPRIGHT PORTION OF SAID CONDUIT, AND CONSTRAINING OXYGEN CONTAINING GAS TO PASS DOWNWARDLY THROUGH AT LEAST PART OF SAID RISING COLUMN OF PURIFICATION MATERIAL, SAID UPRIGHT PORTION OF THE CONDUIT BEING SUFFICIENTLY OBSTRUCTED BY SAID COLUMN AS TO CONSTRAIN THE OXYGEN-CONTAINING GAS TO PRNETRATE AND PASS THROUGH THE COLUMN AND THE FLOW OF OXYGEN-CONTAINING GAS THROUGH THE CONDUIT NOT BEING SUBSTANTIALLY OBSTRUCTED BY SAID MECHANICALLYTRAVERSING MEANS.