​Sulphur Condensers

It doesn’t matter how you spell it, sulphur or sulfur, we’ll make it condense!

Sulphur Condensers are a special category of shell & tube heat exchangers and are used in Sulphur Recovery Units (SRU) in refinery or gas plants.  The Claus Process (Reaction) occurs to strip out and convert hydrogen-sulphide into elemental sulphur, greatly reducing the environmental, safety, and material hazards associated with H2S.

Modern sulphur trains typically have five (5) sulphur condensers with four (4) reheater exchangers in between stages.

Altex designs and fabricate Sulphur Condensers to ASME VIII-Div.1 and ASME I Codes, utilizing UHX or FEA for tubesheet design.

 

Waste Heat Boilers

Big and Ugly. 

Waste Heat Boilers are a critical component in Waste Heat Recovery Systems and must be suitable to resist inlet gas temperatures exceeding 2600°F.  Refractory lining and tubesheet design are critical in ensuring metal temperatures and stresses do not exceed Code and design limits. 

Altex designs and fabricate Waste Heat Boilers to ASME VIII-Div.1 and ASME I Codes.  FEA can be used in some cases for non-UHX tubesheet design, complicated geometries, and extreme temperature gradients.

 

Sulphur Condensers

Scope of Supply:

  • Thermal and hydraulic guarantees
  • Mechanical guarantee
  • Finite Element Analysis (FEA)
  • Sulphur drains
  • Demisters
  • Spargers
  • Refractory – brick and castable
  • Tube ferrules
  • Insulation

Construction

  • Carbon Steel with SA-179 or SA-192 tubes typically.
  • Weld-overlay and cladding available
  • Strength-welded tube-tubesheet joints
  • Inner-bore welded tube-tubesheet joints (cold side of tubesheet, can be radiographed)
  • UHX or ASME I flexible “knuckle” style tubesheets
  • 1% slope typical

Engineering & Design:

  • ASME Section I and Section VIII-Div.1
  • Typically, non-code tubeside
  • HTRI and in-house thermal design programs
  • PV Elite, Code Calc, Compress, Nozzle-Pro, FE Pipe, 661 Pro, Flanged & Flued for mechanical.
  • 3D modeling using Autodesk Inventor
  • 2D fabrication drawings using AutoCAD.

Waste Heat Boilers

Scope of Supply:

  • Steam drums w/ vane-pack and cyclone separator internals, risers, and downcomers
  • Thermal and hydraulic guarantees
  • Mechanical guarantee
  • Finite Element Analysis (FEA)
  • Spargers, vortex breakers
  • Refractory – brick and castable
  • Tube ferrules
  • Insulation
  • Weather shrouds / rain shields

Construction

  • Carbon Steel SA-179, SA-192, or 1-1/4 Cr-Mo T11 tubes, typical
  • Weld-overlay and cladding available
  • Strength-welded tube-tubesheet joints, including `deep-J’ groove
  • Inner-bore welded tube-tubesheet joints - cold (shell) side of tubesheet
  • UHX or ASME I flexible “knuckle” style tubesheets
  • 1% slope typical

Engineering & Design:

  • ASME Section I and Section VIII-Div.1
  • Typically, non-code tubeside
  • HTRI and in-house thermal design programs
  • PV Elite, Code Calc, Compress, Nozzle-Pro, FE Pipe, 661 Pro, Flanged & Flued for mechanical.
  • 3D modeling using Autodesk Inventor
  • 2D fabrication drawings using AutoCAD.

 

 

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