| 摘要 |
A reactor ( 1 ) for preparing phosgene by gas-phase reaction of carbon monoxide and chlorine in the presence of a solid catalyst, which reactor has a bundle of parallel catalyst tubes ( 2 ) aligned in the longitudinal direction of the reactor whose ends are fixed in tube plates ( 3 ) and have a cap ( 4 ) at each end of the reactor ( 1 ), and has deflection plates ( 6 ) which are aligned perpendicular to the longitudinal direction of the reactor in the intermediate space ( 5 ) between the catalyst tubes ( 2 ) and leave free passages ( 7 ) located alternately opposite one another on the interior wall of the reactor, and in which the catalyst tubes ( 2 ) are charged with the solid catalyst, the gaseous reaction mixture is passed from one end of the reactor via one cap ( 4 ) through the catalyst tubes ( 2 ) and is taken off from the opposite end of the reactor ( 1 ) via the second cap ( 4 ) and a liquid heat transfer medium is passed through the intermediate space ( 5 ) around the catalyst tubes ( 2 ), where the reactor ( 1 ) has no tubes in the region of the passages ( 7 ), is proposed.
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