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process for the catalytic oxidation of so2 to so3 in several kontakttrin.
process for the catalytic oxidation of so2 to so3 in several kontakttrin.
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机译:几种kontakttrin中将so2催化氧化为so3的方法。
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摘要
1356653 Sulphur trioxide BAYER AG 25 May 1971 [2 June 1970] 16930/71 Heading C1A SO 3 is produced by the catalytic oxidation of SO 2 with air in a plurality of catalyst stages wherein an air stream, all or part of which has been passed through oleum, is mixed with an SO 2 -containing gas (e.g. a sulphur combustion gas; a roasting or cleavage gas) so that the gas which is fed to the first catalyst stage contains from 1À82 to 10% by volume SO 3 and wherein the reacted gases are subjected to an absorption treatment to remove part of the sulphur trioxide at a catalyst stage prior to the last and after a SO 2 conversion of from 80 to 95%. The catalyst stages are subdivided by heat exchangers or equivalent devices and the air is passed through an exhausting tower connected in parallel to an oleum tower to charge it with SO 3 .
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机译:1356653三氧化硫BAYER AG 1971年5月25日[1970年6月2日] 16930/71标题C1A SO 3是通过在多个催化剂阶段中用空气对SO 2进行催化氧化而生产的,其中所有或部分气流已通过通过发烟硫酸,将其与含SO 2的气体(例如,硫燃烧气体;焙烧或裂解气体)混合,以使送入第一催化剂段的气体包含1-82至10%(体积)的SO 3,其中在最后和之前和之后的SO 2转化率为80-95%之后,在催化剂阶段对反应后的气体进行吸收处理以除去部分三氧化硫。催化剂阶段由热交换器或等效装置细分,空气通过并联连接到发烟硫酸塔的排气塔向其中充入SO 3。
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