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MECS® Power and Coal Gasification Industry Off-Gas Treatment Systems
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Treatment Solutions for Power Plant Off-gases with Variable SO2 Concentrations

Increasing world power demand coupled with a global trend towards strict emissions regulations has resulted in an increased demand for flue gas desulfurization technologies.

Public electricity and heat production are two of the largest sources of SO2 emissions, with coal-burning power plants being the primary contributors. Legislation has therefore sought to impose emissions restrictions at national level. However, as power and coal gasification plants produce process off-gas with variable concentrations of sulfur dioxide, companies face a number of constraints when seeking out a solution to control potential emissions. MECS®’s SolvR® and SULFOX™ technologies provide flexible solutions to treat SO2-bearing off-gas in both power and coal gasification plants. For smaller power plants (<300MW) that require high SO2 removal efficiencies, the unique features of the DynaWave® reverse jet scrubber technology with its extremely high on-stream reliability and outstanding ease of operation offer an excellent solution.

Wet Sulfuric Acid Plant – MECS® Sulfox

MECS® SULFOXTM wet sulfuric acid plant technology treats the SO2-bearing off-gases, leaving a wet gas cleaning plant using a wet catalytic process that recovers sulfur-containing compounds as commercial-grade concentrated sulfuric acid (96-96%). It is suitable for applications in the power and coal gasification industries where waste gas contains H2S and/or CS2 and/or SO2 and must be desulfurized.

Each SULFOXTM plant is custom-designed according to feed gas concentration and individual site specifications and is tailored to keep capital expenditure and operation costs as low as possible. The SULFOXTM process has over 20 years of successful field experience.

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Wet Sulfuric Acid Plant – MECS® Sulfox

SULFOXTM System Consists Of:

  • Process gas inlet
  • Reactor
  • Concentration column
  • MECS® heat recovery system HRSTM
  • Wet electrostatic precipitation
  • Acid management
  • Tail gas scrubber

The Benefits for Power and Coal Gasification Plants That Treat Process Off-Gases:

 

This technology has been used successfully around the world. The benefits for power and coal gasification plants that treat process off-gases with this method include:

  • Energy-efficient process
  • Simple & flexible
  • Recovers 99.8% of the total sulfur content
  • Produces only concentrated sulfuric acid and cleaned tail gas – no waste- or by-product
  • No use of process water & no production of wastewater
  • No use of chemicals (only lime milk for scrubbing)



Elessent Clean Technologies is one of the few companies to design and manufacture its own sulfuric acid process equipment and technologies including catalysts, heat recovery and mist elimination equipment. By combining process technology expertise, materials science and nearly a century of sulfuric acid plant experience, we provide a single point of contact for advanced, proven technology, performance and service.

For further details on MECS® SULFOXTM, please view our brochure:

11 January 2023
UNIGEL partners with Elessent Clean Technologies for MECS® Sulfuric Acid Plant
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15 December 2022
Elessent Clean Technologies (Elessent), global leader in sulfuric acid technologies, announces the opening of a new office in Jakarta, Indonesia.
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7 December 2022
A new age of fuel production is here with the introduction of policy changes pushing refineries to reduce emissions and ultimately achieve net zero goals
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17 March 2022
REFIPAMPA contracts Elessent Clean Technologies for IsoTherming® Hydroprocessing Technology
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3 March 2022
The global fuels market will see a dramatic shift over Despite the increase in the number of electric vehicles the next 10 years. Despite its steep reduction in demand in 2020...
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3 January 2022
New, independent company becomes Elessent Clean Technologies
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