3. Deacidification processes

3.1 Overview of the different types of process

Deacidification processes can be classified into three main families:

• scavengers or adsorption processes, which aim to remove H ₂ S or other minority sulfur compounds (COS, RSH, CS ₂ , light sulfides), suitable for gases with low H ₂ S contents;

• redox processes, which aim to remove H ₂ S, suitable for gases with low to moderate H ₂ S concentrations, and which have the advantage of removing sulfur directly in solid form ;

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