DEV CHT-03 is a Cobalt–Molybdenum (CoMo) based hydrogenation catalyst engineered exclusively for Tail Gas Treating Unit (TGTU) applications in refinery sulphur recovery systems. Its primary role is to convert residual sulphur compounds such as SO₂, COS, CS₂, and elemental sulphur into H₂S, which is then recycled back to the Claus unit. By ensuring nearly complete sulphur recovery, DEV CHT-03 helps refineries achieve ultra-low SO₂ emissions and meet stringent environmental standards.

  • Maximum Sulphur Recovery, Minimum Emissions
  • Choice of geometry based on application
  • Longer Cycles, Stronger Performance
  • Cleaner Tail Gas, Greener Refinery

the process

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Tail Gas Specific Performance

DEV CHT-03 is optimized for TGTU operating conditions, offering superior hydrogenation activity and high selectivity towards H₂S formation. Its active CoMo formulation efficiently handles trace sulphur species and guarantees maximum Claus unit efficiency, even during fluctuating operating conditions or variable feed gas compositions.

Advanced Alumina Support

The catalyst is supported on a specially developed high-purity alumina matrix, offering exceptional thermal stability, high crush strength, and minimal attrition. This ensures consistent bed integrity, controlled pressure drop, and dependable performance under demanding TGTU environments.

Optimized CoMo Interaction

The carefully tuned balance between cobalt and molybdenum provides excellent hydrogenation efficiency while resisting deactivation caused by temperature swings, contaminants, and operational upsets. DEV CHT-03 is designed for stable, long-cycle operation, reducing replacement frequency and improving overall sulphur recovery economics.

Operational Reliability

By maintaining high H₂S selectivity and structural resilience, DEV CHT-03 ensures consistent tail gas clean-up, enabling refiners to comply with tightening emission norms while protecting downstream equipment and minimizing downtime.

Advantages

  • High conversion of SO₂, COS, CS₂, and sulphur species to H₂S
  • Available in Low and Hight Temp TGTU configurations

  • Outstanding mechanical strength for low Delta P.

Technical Specifications

Composition CoMo and MoO on High Purity Alumina
Shape Cylinder, Trilobe, Quadrilobe, Sphere
Sizes ~3 mm
Workstation Setup

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