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Content archived on 2023-01-04

Abatement of sulphur dioxide and of nitrogen oxides from flue gas

Objective


A new flue gas desulphurization process, denominated Ispra Mark 13B, was invented and developed. It is based on the same reaction as the Ispra Mark 13A process (ie the conversion of sulphur dioxide with bromine to hydrogen bromide and sulphuric acid).

The new process is very similar to the Ispra Mark 13A process, but avoids the regeneration of bromine by electrolysis of hydrogen bromide. Earlier cost estimations have shown that for the Ispra Mark 13A process, the electrolyzer represents about 25% of the investment and about 30% of the variable operating costs. Replacing the electrolysis by catalytic oxidation will thus lead to substantial cost savings.

The process has been evaluated, first by means of laboratory measurements, followed by experiments in the modified bench scale plant of the Ispra Mark 13A process. This plant was constructed entirely from technical glass elements and contained all elements of the industrial process.

The results of the process variation have been considered as very promising and a significant improvement on the Ispra Mark 13A process.

Laboratory and bench scale development work carried out in the period 1980 to 1988 led to the construction and operation of pilot plant to desulphurize a flue gas throughout of 32000 Nm{3} h{-1} at the SARAS Refinery at Sarroch in Sardinia (Italy).
The agreement between the Environment Institute and DG XIII was focused on the technologies for the abatement of sulphur dioxide and of nitrogen oxides from flue gas.

Topic(s)

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Call for proposal

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Funding Scheme

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Coordinator

Joint Research Centre (JRC)
EU contribution
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Address
Edificio 29
21020 Ispra
Italy

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Total cost
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