C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/638.1
C07C 31/04 (2006.01) B01J 8/00 (2006.01) B01J 8/06 (2006.01) C07C 29/151 (2006.01) C07C 29/152 (2006.01)
Patent
CA 1174245
ABSTRACT OF THE DISCLOSURE: In a method of controlling the equilibrium con- ditions and of simultaneously producing steam under high pressure in the production of methanol by a reaction of oxides of carbon and of hydrogen-containing gases at temper- atures of 200 to 300° C under a pressure of 20 to 100 bars at a copper-containing catalyst, which is contained within the reactor in tubes, which are indirectly cooled by boiling water under pressure, wherein the resulting steam is with- drawn together with circulating water and is separated from the water, the water is recycled and the evaporated water is replaced by feed water. It is proposed to carry out the method in such a manner that a perforated thin intermediate bottom is provided, which is spaced 20 to 150 cm over the lower tube plate, that the reactor is fed with the circu- lating water above that intermediate bottom and with the feed water below that intermediate bottom, that the gaseous reaction mixture is cooled by 20 to 50° C in the lower part of the catalyst-filled tubes in a tube length of 20 to 150 cm, that the feed water is heated in the reactor to temper- atures of 230 to 290° C with evaporation of part of the feed water, that the resulting mixture of steam and circulating water is separated, that the circulating water is recycled and the resulting high-pressure steam is withdrawn. In this method, steam under a pressure above 60 bars can be produced whereas only a pressure of 40 bars has been reached before.
382167
Metallgesellschaft Aktiengesellschaft
Robic Robic & Associes/associates
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