Sulfur recovery - claus process

Applications: The Claus process has been developed to recover elemental sulphur from H2S containing gases originating from gas treating plants such as alkanolamine units or physical solvent plants. Modern Claus plants should be able to process H2S/NH3 containing gases as well, originating from Sour Water Strippers.

Description: The Claus process is based on the combustion of part of the H2S to SO2 and the subsequent reaction between the remaining H2S and the SO2 produced, forming sulphur. There are two main varieties of the Claus process: straight through and split flow. The straight through process is used for feed gas containing more than 50% H2S while split flow is applied for gases containing 50 to 15% H2S. The sulphur recovery process consists of a thermal stage (combustion chamber, waste heat boiler) and two or three catalytic reaction stages (reheater, reactor and condenser). In the thermal stage, the Claus reaction takes place at a high temperature level (950-1350°C). The sulphur produced in this stage is condensed either in the waste heat boiler or in the condenser. Subsequently, the gas is reheated to a temperature of 200-300°C before introduction into each reactor stage. The heat generated from the reactions is used for steam production. In the thermal stage, a choice can be made between the production of LP, MP or HP steam. In the sulphur condensers LP steam is generated. The tail gas is sent to an incinerator or tail gas treater.


View More

  • Claus Tail Gas Treating – BSR® MDEA Process

    Applications: Refineries and gas plants around the world are challenged by new emission regulations, a stronger push to increase sulphur removal and the processing of higher sulphur crudes. The addition of a Beavon Sulfur removal - Methyldiethanolamine (BSR®-MDEA) Tail Gas Treatment Unit (TGTU) to ...

  • Gas treating (refinery / natural gas) ADIP process

    Applications: The ADIP process is a regenerative process developed to selectively reduce H2S in gas to very low concentrations in the presence of CO2. The ADIP process uses an aqueous solution of diisopropanol amine (DIPA) or the aqueous solution of methyldiethanol amine (MDEA). MDEA is used for those ...

  • Sulphur Recovery SUPERCLAUS® Process

    The SUPERCLAUS® process recovers elemental sulphur from H2S-containing gases originating from gas treating and sour water stripper plants. Yields up to 99.2% overall sulphur recovery, without any further tail gas clean-up, are possible. The SUPERCLAUS® process consists of a thermal stage followed ...

  • Plant control - advanced burner control (plus)

    Applications: The design intent is to have accurate SRU tail gas quality control in order to optimize sulphur recovery. ABC provides that. It is clearly superior over conventional SRU control and has always been Comprimo’s control system of choice for the EUROCLAUS®/SUPERCLAUS® process ...

  • Sulfur recovery - EUROCLAUS® process

    Applications: The EUROCLAUS® process recovers elemental sulphur from H2S-containing gases originating from gas treating and sour water stripper plants. The EUROCLAUS® process is an improvement of the SUPERCLAUS® process. Yields from 99.3 up to 99.5% overall sulphur recovery, without any further ...

  • Liquid hydrocarbon treating (LPG/PP/BB) - ADIP process

    Applications: Besides its use as a regenerative process for the reduction of H2S to very low levels in gases, the ADIP process is also used to selectively reduce H2S and COS to very low levels in liquid hydrocarbons, such as propane-propylene (PP), butanebutene (BB), LPG and NGLs. The process is based ...

  • Sulfur handling - Shell sulfur degassing process

    Applications: The Shell Sulphur Degassing Process has been developed to remove H2S and H2Sx from liquid sulphur eliminating potential toxic and explosion hazards associated with handling, transport and storage of liquid sulphur. Elemental sulphur produced by the Claus process contains both physically ...

  • Sour water stripper

    Applications: Many process units throughout a refinery generate significant quantities of sour water. Sour water collected within a refinery contains both H2S and NH3. These components are present as ammonium hydrosulphide (NH4HS) within the sour water. NH4HS is the salt of a weak base and a weak acid. ...

  • Responsive image Hydrotreating and hydrocracking catalysts
  • Responsive image Reinventing reliability
  • Responsive image Worldwide refinery processing review
  • Responsive image Get the right answer faster
  • Responsive image Becht fired heaters services
  • Responsive image Advanced sulphur analysis in hydrocarbons
  • Responsive image Downstream industry process diagnostics
  • Responsive image Multi-element and total S process analyzers
  • Responsive image Galexia™ hydroprocessing platform
  • Responsive image Axens on Linkedin