GAS PLANT

(Acid Gas - 57 Mole % H2S)

SULFUR RECOVERY IN
Three Catalytic Bed
Regular CLAUS and SHIFT-CLAUS® Units

(COMPUTER SIMULATION RESULTS)

COND. 1 COND. 2 COND. 3 COND. 4
Regular CLAUS 45.36 82.52 93.41 95.31
SHIFT-CLAUS® 44.99 82.48 93.41 98.95


SHIFT-CLAUS®

A new Concept In Sulfur Recovery Technology

  • Leads to ~99% sulfur recovery in regular Claus unit
  • Involves COS/CS2 in sulfur production
  • Reduces SO2 emissions
  • No additional capital investment required
  • No additional utility required
  • No sophisticated operation
  • Produces additional sulfur and steam
  • Any regular SRU can be switched to SHIFT-CLAUS®
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