| 摘要 |
PCT No. PCT/EP93/03560 Sec. 371 Date Oct. 19, 1995 Sec. 102(e) Date Oct. 19, 1995 PCT Filed Dec. 13, 1993 PCT Pub. No. WO94/13578 PCT Pub. Date Jun. 23, 1994A method of treating a flow of gas containing oxidized sulphur compounds, such as an exhaust gas from coal combustion, comprising the steps of (i) treating the flow of gas to obtain a first component flow containing at least 30% of the total oxidized sulphur compounds and a second component flow containing at least a part of the remainder of the total oxidized sulphur compounds; (ii) converting the first component flow into a concentrated gas containing at least 2.5% by volume of sulphur compounds; (iii) converting oxidized sulphur compounds in the second component flow into hydrogen sulphide; and (iv) supplying the concentrated gas of step (ii) and the hydrogen sulphide of step (iii) to an apparatus for manufacturing either sulfuric acid, sulphur dioxide or elemental sulphur. |
