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Sulfur recovery plants at oil and natural gas refineries need refractory solutions to insulate thermal reactors in Sulfur Recovery Units (SRU) in the high-temperature conversion of sulfur waste from refined oil to elemental sulfur used for manufacturing fertilizer.

Sulfur Recovery Units Refractory Solutions

As an international leader in refractories for SRUs, HarbisonWalker International’s refractory products ensure that SRU reaction furnaces operate reliably when faced with high temperatures, increased throughput, and harsh, corrosive environments.

Di-Hydrogen-Sulfide and sour water are stripped from hydrocarbon products in other units of the refinery and routed through the SRU to be converted to elemental sulfur. Without this conversion, the sulfur oxides would be expelled into the air after incineration, resulting in acid rain and various health issues. The main focus of the SRU, the reaction furnace, burns part of the feed at temperatures up to 2800°F. The gases then pass through a series of converters and condensers that convert the acid gases to elemental sulfur and condense them to liquid.  This method is known as the Claus process.

HarbisonWalker International offers a full portfolio of high-temperature alumina firebricks as well as lightweight brick and castables for efficient and reliable insulation, high temperature creep resistance, and corrosion prevention. To be sure your SRUs are operating optimally, we can provide a detailed heat transfer analysis to ensure that shell temperatures are at the necessary level.

Sulfur Recovery Units Refractory Linings: Key Benefits

  • Extremely high creep resistance at high operating temperatures
  • Extended run times
  • Increased thermal shock resistance
  • Resistance to acid corrosion
  • Increased production efficiency
  • Reduced maintenance costs and downtime

Did You Know?

KORUNDAL XD® has been a leading product in use in North America for over 40 years. This extremely pure 90% alumina brick has unmatched creep resistance and is ideal for Sulfur Recovery Units in extreme temperature environments.

Did You Know?

HWI can provide detailed brick layout drawings and bills of material for the entire SRU.  This ensures that all the products needed are on site at the time of installation.  Revisions can even be made afterward to reflect any changes made during the installation.

Sulfur Recovery Units (SRU)

Product SDS
CLIPPER® DP A super duty fireclay brick
CORAL® PLASTIC 28-82 ADTECH® An 82% alumina, phosphate bonded refractory plastic
EXCELERATE ABR PLUS A high alumina, phosphate bonded ramming mix with excellent abrasion resistance
GREENCAST®-94 F PLUS A 94% alumina, low silica castable
GREENCAST®-94 GR PLUS A 94% alumina, low silica gunning mix
GREENCAST®-94 PLUS A 94% alumina, low silica castable
GREENLITE®-45-L GR ON-LINE® A 2500°F rated lightweight gunning mix
GREENLITE®-45-L PLUS A 2500°F rated lightweight castable
GREENLITE®-45-L PUMP A 2500°F rated lightweight pumping mix
GREENTHERM 23 LI A 2300°F rated insulating firebrick
GREENTHERM 26 LI A 2600°F rated insulating firebrick
GREENTHERM 28 LI A 2800°F rated insulating firebrick
GREENTHERM 30 LI A 3000°F rated insulating firebrick
H-W CORUNDUM A high purity, 99% alumina brick English
HPV® 110 CASTABLE A 110lb/ft3, abrasion resistant castable
HPV® 110 GUN MIX A 110lb/ft3, abrasion resistant gunning castable
HT MASTIC 500-NF® Asphalt based water emulsion coating used behind refractory English
HT MASTIC 500® A solvent based asphaltic mastic coating used behind refractory English
INSWOOL® CSW HP MODULE A folded, pre-weld, 2300°F rated ceramic fiber module English
INSWOOL® CSW HTZ MODULE A folded, pre-weld, 2600°F rated ceramic fiber module English
INSWOOL® MOLDABLE 2300°F Ceramic Fiber Moldable Material - troweled or hand packed into place.
INSWOOL® PUMPABLE 2300°F Ceramic Fiber Pumpable Material - formulated for pumping with special equipment.
INSWOOL®-HP BLANKET A 2300°F rated, alumina silica ceramic fiber blanket
INSWOOL®-HTZ BLANKET A 2600°F rated, alumina silica zirconia ceramic fiber blanket
INSWOOL®-S BLANKET 8# A Low Biopersistent / Soluble Fiber blanket made from Silica-Calcia-Magnesia chemistry. English
KALA® A 50% alumina brick
KALA® HPC CHECKERS A 50% alumina brick
KAST-O-LITE 23 LI PLUS A 2300°F rated lightweight gunning mix
KAST-O-LITE® 20-45 G PLUS A 2000°F rated lightweight gunning mix
KAST-O-LITE® 23 LI PLUS A 2300°F rated lightweight gunning mix
KAST-O-LITE® 26 LI PLUS A 2600°F rated lightweight castable
KAST-O-LITE® 30 LI G PLUS A 3000°F rated lightweight gunning mix
KAST-O-LITE® 97 L PLUS A 3300°F rated lightweight castable
KORUNDAL XD® A 90% alumina, mullite bonded brick with low porosity
KORUNDAL XD®/C High Alumina (90%), mullite bonded brick shape with low porosity English
LO-ABRADE® HPI GR PLUS An abrasion resistant gunning mix English
LO-ABRADE® HPI PLUS An abrasion resistant castable
TUFLINE® 90 DM A 90% alumina brick designed for thermal shock resistance
UFALA® A 60% alumina brick shape
UFALA® A 60% alumina brick shape
UFALA® MCR A 60% Alumina - Andalusite Brick Shape English
UFALA® MCR A 60% Alumina - Andalusite Brick Shape English
VERSAGUN® ABR PLUS A 60% alumina, low-cement gunning mix designed for abrasion resistance

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