초록 ▼

A novel method and apparatus for one-step linking of membrane permeation of hydrogen to the generation by steam reforming of a methanol-like fuel that comprises bounding a longitudinal flow path of a methanol reformate stream comprising hydrogen, steam and the oxides of carbon and methanol, by a thi

A novel method and apparatus for one-step linking of membrane permeation of hydrogen to the generation by steam reforming of a methanol-like fuel that comprises bounding a longitudinal flow path of a methanol reformate stream comprising hydrogen, steam and the oxides of carbon and methanol, by a thin palladium-bearing membrane; promoting turbulence in the flow to cause a predominant amount, but not all, of the hydrogen in the stream transversely to permeate the membrane as substantially pure hydrogen passing transversely into a region external to the bounding membrane, thereby simultaneously generating and permeating the hydrogen; and maintaining the hydrogen in the external region at least at atmospheric pressure, but at a lower pressure than the partial pressure of the residual hydrogen in the resulting depleted reformate.

대표청구항 ▼

[ What is claimed is:] [11.] A method of one-step linking of membrane purification of hydrogen to the generation at an elevated pressure and a non-poisoning temperature between about 150.degree. C. and 350 .degree. C. by steam reforming of methanol and carbon monoxide with or without admixed hydroge

[ What is claimed is:] [11.] A method of one-step linking of membrane purification of hydrogen to the generation at an elevated pressure and a non-poisoning temperature between about 150.degree. C. and 350 .degree. C. by steam reforming of methanol and carbon monoxide with or without admixed hydrogen that comprises bounding a longitudinal flow path of a methanol reformate stream comprising hydrogen, steam and the oxides of carbon and methanol by a membrane, selected from the group consisting of a palladium alloy and a palladium-coated transition base metal, promoting turbulence in the flow to cause a predominant amount, but not all, of the hydrogen in the stream transversely to permeate the membrane as substantially pure hydrogen passing transversely into a region external to the bounding membrane, thereby simultaneously generating and permeating the hydrogen; and collecting the permeated pure hydrogen from the external region at a pressure of at least atmospheric pressure, but at a lower pressure than the partial pressure of the residual hydrogen in the resulting depleted reformate.