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    SNOX™ technology for carbon black

    SNOX™ technology for carbon black

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    Compliance without waste generation

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    Cost-effective lifecycle

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    Removes SOx and NOx, and make sulfur available as commercial-grade sulfuric acid

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    Reduce your cost for air quality control

    With our SNOX™ technology, carbon black producers can significantly reduce the cost of staying compliant without generating waste. They also get a solution optimized for a cost-effective lifecycle, which protects their profit.

    Outperforming conventional Flue Gas Desulfurization (FGD)

    Conventional flue gas desulfurization (FGD) methods are plagued by high operating costs, massive limestone consumption, and production of contaminated gypsum that must be deposited. This makes conventional FGD’s increasingly expensive to operate, particularly as feedstock sulfur content increases.

    SNOX™ takes on these challenges by removing SOx and NOx, and the removed sulfur from exhaust gases is made available as commercial-grade sulfuric acid instead of contaminated gypsum or ocean discharge. SNOX™ also does not consume water or produce waste, eliminating the need for expensive handling, treatment, disposal processes, and logistics.

    For the carbon black industry, SNOX™ goes one step further by eliminating any related dust nuisance, placing stack emissions well below the allowable levels. The heat produced in the SNOX™ process’ exothermal reactions – and by cooling clean gas to 100°C (212°F) – is recovered and used as steam for power generation in a steam turbine or other customer needs.

     

    The SNOX™ process

    1000xN_License_SNOX_diagram_carbon black

     

    How it works

    The SNOX™ process includes the following steps:

    • Heating of exhaust as to approximately 400°C (752° F) in a support heater (if needed)

    • Catalytic reduction of NOx by NH3

    • Catalytic oxidation of SO2 to SO3 and oxidation of remaining carbon black dust, in the SO2 converter

    • Cooling of the SO3 gas making the SO3 react with water vapor

    • Further cooling of the gas to about 100°C (212°F) in the WSA condenser to produce liquid, commercial-grade sulfuric acid

    Definition

    Catalysts

    Catalysts can accelerate chemical reactions, control selectivity, and reduce energy requirements. Their ability to optimize process efficiency and product quality make them indispensable in industrial processes.

    Definition

    Outputs

    The output is the result or end product you're looking to get out of your refinery or chemical process. The output helps determine which technologies and catalysts you need.

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    Contact us

    Do you have a question about our products or solutions? Or do you want to know how our technologies can support your business? Contact our experts today.