METHOD, APPARATUS AND SYSTEM FOR MAKING SULFURIC ACID

摘要

The present invention relates to a preparing method of a sulfuric acid product, which comprises: providing solid sulfur; melting the solid sulfur into liquid sulfur in a sulfur melting tank, and burning the liquid sulfur to generate a sulfur product; recycling high order heat energy generated from combustion of the sulfur; providing the high order heat energy to a distillation tower; recycling low order heat energy generated from combustion of the sulfur; providing the low order heat energy to the sulfur melting tank; providing hydrogen peroxide or sulfuric acid containing hydrogen peroxide into an absorption-reaction tower for reacting to produce a sulfuric acid product; and concentrating and purifying the sulfuric acid product so as to improve the density and purity thereof.