Condenser-reactor switching units for extended claus process

C - Chemistry – Metallurgy – 01 – B

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23/385

C01B 17/04 (2006.01)

Patent

CA 2026548

A reactor unit for use in extended Claus process plants comprising three or more reactor units, each alternating between operation under high temperature Claus and cold bed adsorption conditions, comprises a sulfur condenser upstream of an associated downstream reactor which are rotated as a unit through operations in the plant. This reduces the number of condensers required. In a further aspect, a potential surge in the plant low pressure steam system is eliminated in comparison with previous similar extended Claus plants.

Un réacteur pour procédé Claus élargi, comprenant trois ou plusieurs unités de réacteurs, chacun étant disposé alternativement entre une étape du procédé Claus à haute température et une étape d'adsorption sur lit froid de ce même procédé; le système comprend un condenseur de soufre en amont d'un réacteur associé, qui fonctionnent comme unité par rotation dans l'usine. Cela réduit le nombre de condenseurs requis. Par ailleurs, une éventuelle surpression dans le système basse pression de l'usine est éliminée, comparativement aux usines à procédé Claus élargi, antérieures.

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