SULFUR RECOVERY UNIT AND SULFUR RECOVERY METHOD

摘要

Provided is a sulfur recovery device comprising: a reactor that introduces a hydrogen sulfide-containing gas and an oxygen-containing gas, and causes a high-temperature Claus reaction between the hydrogen sulfide-containing gas and the oxygen-containing gas; a first sulfur condenser that cools the reaction gas discharged from the reactor and condenses sulfur; a reheater that reheats the condensed gas discharged from the first sulfur condenser; a catalytic Claus reactor that causes the reaction gas discharged from the reheater to have a catalytic Claus reaction; a second sulfur condenser that cools and condenses the reaction gas discharged from the catalytic Claus reactor; and a separator that causes the sulfur droplets that accompany the reaction gas discharged from the second sulfur condenser to collide, and removes said droplets that have collided and become larger. The reactor and at least one device from among the reheater, the catalytic Claus reactor, the second sulfur condenser, and the separator are arranged fixed to the ground and devices arranged between the plurality of devices that have been fixed are arranged so as to be movable relative to the plurality of fixed devices; and thermal stress is absorbed.