Apparatus for recovering sulfur from synthesis gas and Method therefor

摘要

Disclosed is a method for collecting sulfur from a synthetic gas. The method comprises the steps of performing desulfurization by which the synthetic gas including sulfur components is fed so that sulfur compounds are attached on a catalyst that is fixed to each of multiple desulfurization/reproduction reactors and discharging a purified synthetic gas from which the sulfur components are removed; performing reproduction by which oxygen is supplied so that the sulfur compounds attached on the catalyst of the desulfurization/reproduction reactors are oxidized and discharging sulfur dioxide that is converted from the sulfur compounds by means of the oxidation of the catalyst; supplying the sulfur compounds that are oxidized through the reproduction to a sulfur collecting reactor; separating sulfur as a solid by supplying a reducing agent so that the sulfur dioxide is converted into sulfur through reduction in the sulfur collecting reactor; and discharging the separated elemental sulfur in order to be collected.