SCOPE OF SUPPLY

Basic Claus Process SRU Reaction Industrial furnace SRU Tail Gas Incinerator

Operates at sub-stoichiometric conditions Forced draught or natural draught industrial burners High intensity burner Incineration temperature typically Optimum H2S/SO2 ratio of 2 controlled by air flow 650 C to 900 C Minimum reaction furnace temperature ~ 1100ºC Residence time typically 0.6 to 1 second H2S concentration from 35% to 90% Horizontal or vertical incinerator Hot shell to prevent acid dew point corrosion Optional waste heat recovery Turndown range up to 10 to 1, depends on acid gas pressure Stack height dependent on local conditions and environmental regulations Acid gas containing ammonia or hydrocarbons Process defined by process licensor Low nox burners available Low excess air Low fuel consumption
COMBUSTION AIR INLET Incinerator design in-house Fig 2 HCE Vortomax SRU High Intensity Burner

In-line Heaters

Burner operates at stoichiometric conditions Re-heaters are used before each Claus reactor Reheat temperatures typically between 190ºC and 250ºC Hot shell to prevent acid dew point corrosion Process defined by process licensor