Abstract
Catalysts prepared by supporting molten CuCl-KCl or CuCl-ZnCl 2 -KCl on SiO 2 , Al 2 O 3 , or ZnSiO 3 support have been used to promote methanol dissociation to predominantly CO and H 2 (Eyman et al., ref 1). The catalysts were prepared by common impregnation procedures and did not require pretreatment before use. A wide range of operating conditions was examined in continuous flow, fixed-bed reactor tests. Methanol conversion rates (mol of CH 3 OH/L of catalyst.h) were very high: up to 6300 at 400 °C, and as high as 12 000 at 500 °C. Outstanding catalyst longevity and thermal stability were also observed. Several generalizations concerning catalyst composition can be made. Catalyst activity at low reaction temperatures increases with decreasing salt fusion temperatures
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