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1. 发明授权

US06413488B1 Post conversion of a gas containing hydrogen sulphide, the elimination of sulphur crystallized by cooling 有权
标题翻译：后转化含硫化氢的气体，通过冷却消除硫结晶
公开(公告)号：US06413488B1
公开(公告)日：2002-07-02
申请号：US09355067
申请日：2000-06-19
申请人： David Smith , David Benayoun , Claude Dezael
发明人： David Smith , David Benayoun , Claude Dezael
IPC分类号： B01D5350
CPC分类号： B01D53/523 , C01B17/0205 , C01B17/0456 , C01B17/05
摘要： A process and an apparatus are described for treatment of a gas containing hydrogen sulphide and sulphur dioxide, for example a Claus plant tail gas, in which the gas is brought into contact with an organic solvent (1) e.g. polyethylene glycol 400, containing a catalyst e.g. sodium salicylate, in at least one gas-liquid reactor-contactor (2) and a gas (20) substantially no longer containing hydrogen sulphide and sulphur dioxide is recovered. A single-phase solution (4) of solvent and sulphur is extracted from the reactor-contactor and a portion is cooled in at least one cooling zone (8) to obtain a suspension of sulphur crystals in the solvent, the crystallised sulphur is separated from the solvent in a separation zone (10), the sulphur-depleted solvent (14, 15) is recovered and recycled at least in part to the reactor-contactor (2), and the sulphur (13) is recovered.
摘要翻译：描述了一种用于处理含有硫化氢和二氧化硫的气体的方法和装置，例如克劳斯植物尾气，其中气体与有机溶剂（1）接触。聚乙二醇400，含有催化剂在至少一个气液反应器 - 接触器（2）和基本上不再含有硫化氢和二氧化硫的气体（20）中回收水杨酸钠。从反应器 - 接触器中提取溶剂和硫的单相溶液（4），并在至少一个冷却区（8）中冷却一部分，以获得溶剂中硫结晶的悬浮液，将结晶的硫从分离区（10）中的溶剂，贫硫溶剂（14,15）被回收并至少部分地再循环到反应器 - 接触器（2）中，并回收硫（13）。

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