ENERGETICAL ANALYSIS OF THE SULFURIC-ACID MANUFACTURING TECHNOLOGIES

By using energetic analysis method, this paper studies two sulphur aci d manufacturig processes starting from various raw materials, i.e. sul phur and pyrites. Following a thorough analysis, the energetical impro vement reserves for each process phase were determined The greatest im provement reserves are in the raw materials burning and SO3 adosrbtion stages. Therefore technological solutions were proposed to reduce the respective processes irreversibilities. There were also determined, f or each technology, the whole technological flow exergetic efficiency, considering both the sulphuric acid and steam produced. This index al lows an energetical comparison of two or several technologies, both fo r the same product and varoious products.