Methods and systems for producing high purity methanol from carbon dioxide hydrogenation using NaA membrane reactor

Abstract

The dehydration membrane reactor for methanol production from CO2 hydrogenation includes one or more porous supports, a dehydration membrane on the one or more porous supports, and a catalyst layer on the dehydration membrane. The one or more porous supports include hollow ceramic fibers and the dehydration membrane includes NaA zeolite. The reactor is made by dip-coating the porous supports in a zeolite crystal seed solution and drying the coated porous support. The coated porous support is dried at about 80° C. and then heated to a temperature above about 200° C. The NaA zeolite membrane is then grown on the seeded support, and a catalyst layer is applied to the zeolite membrane. A feedstream including carbon dioxide and hydrogen is fed to the catalyst layer, where a product stream including methanol and water is evolved. The water is then removed from the product stream through the dehydration membrane to produce a high-purity methanol product.

Dependencies are inferred from the claim text.