发明名称 APPARATUS AND PROCESS FOR THE CONCENTRATION OF SULPHURIC ACID
摘要 The present invention provides a process for producing concentrated sulphuric acid from a hot gas stream comprising water and sulphuric trioxide which process comprises feeding a first portion of said gas stream through a first sulphur trioxide absorption zone and a second portion through a second sulphur trioxide absorption zone; feeding a recycled sulphuric acid stream to said first sulphur trioxide absorption zone whereby substantially all of the sulphur trioxide and sulphuric acid are removed from said first portion of said gas stream to produce an enlarged sulphuric acid stream; recycling a first portion of said enlarged sulphuric acid stream through said first sulphur trioxide absorption zone; feeding a second portion of said enlarged sulphuric acid stream to said second sulphur trioxide absorption zone; and collecting sulphuric acid product from said second sulphur trioxide absorption zone; wherein the ratio of gases to sulphuric acid in said second sulphur trioxide absorption zone is such that the sulphuric acid product leaving said zone is of the desired concentration to a maximum of the azeotropic concentration. The present invention also provides apparatus for performing such a process.
申请公布号 DE3565092(D1) 申请公布日期 1988.10.27
申请号 DE19853565092 申请日期 1985.01.25
申请人 C-I-L INC. 发明人 CAMERON, GORDON MURRAY
分类号 C01B17/74;C01B17/88;(IPC1-7):C01B17/88;C01B17/90 主分类号 C01B17/74
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