REGENERATION METHOD FOR DESULFURIZER ELEMENTARY SUBSTANCE SULFUR IN DESULFURIZATION COLUMN

摘要

Disclosed is a regeneration method for a desulfurizer elementary substance sulfur in a desulfurization column, wherein elementary substance sulfur is subjected to the following steps after the desulfurization and saturation of a desulfurizer: a high temperature circulating gas enters the desulfurizer for heating and heats to a temperature not less than the melting point of the elementary substance sulfur; the high-temperature circulating gas enters a sulfur recovery cooler for cooling after heating the desulfurizer, and is cooled to a temperature not less than the melting point of the elementary substance sulfur to obtain liquid sulfur; the circulating gas which exits from the sulfur recovery cooler exchanges heat with circulating water and is cooled to normal temperature; the normal temperature circulating gas is subjected to pressure increase and then enters the desulfurizer that has undergone regeneration, and cools same to the desulfurization temperature; the circulating gas, after cooling the desulfurizer, is heated and then enters another desulfurization column to be heated and regenerated by the desulfurizing agent; when the desorption of the elementary substance sulfur of the desulfurizer in the desulfurization column is completed, the heating of the desulfurizer in the desulfurization column is stopped. The normal temperature circulating gas which exits from a water cooler cools the desulfurizer in the desulfurization column to the desulfurization temperature, and the regeneration of the desulfurizer in the desulfurization column is completed.