Other

Mitsubishi Materials Corporation

Agency of Industrial Science and Technology

Nok Corporation

National Institute of Advanced Industrial Science

National Institute of Advanced Industrial Science and Technology

Naotsugu Itoh

Shigeki Hara

Fujio Mizukami

Koichi Kita

Makoto Toba

Shuichi Niwa

Kazuhiko Haba

Tomonari Saito

Takemi Nanba

Hiroshi Shoji

Keiji Sakaki

Hirosi Shoji

A hydrogen permeable membrane which has an excellent high-temperature amorphous stability and a long lifetime under high-temperature heating operation and which can be miniaturized for use in a high-performance hydrogen purifier. The hydrogen permeable membrane is made of a non-crystalline nickel-zirconium alloy or zirconium-nickel alloy composed oftoatom % of nickel or zirconium; andtoatom % of aluminum,toatom % of vanadium and/or niobium, ortoatom % of niobium andtoatom % of phosphorus (provided that the combined amount of niobium and phosphorus is not more thanatom %); with the balance being zirconium or nickel and unavoidable impurities.

Hydrogen permeable membrane

A method for carrying out a reaction of one substance capable of being activated by a catalyst with another substance capable of reacting with said one substance activated, characterized in that the substance capable of being activated is activated by passing the substance through a diaphragm type catalyst and the reaction is thus performed in one reaction step; a method for producing an aromatic alcohol utilizing the above method; and a reaction apparatus suitable for these reactions. In the method, one substance is activated by passing through a diaphragm type catalyst and an objective reaction is carried out by using the activated substance, and the reaction can be performed in one reaction step and with safety. Moreover, the contact of the above activated substance with a compound to be reacted therewith can be freely controlled, and therefore, over-reaction can be prevented and an objective product can be produced in high yield. The method is thus markedly advantageous from an economical view point as a commercial process for producing oxygen-containing organic compounds such as an aromatic alcohol, a ketone, an aldehyde, a carboxylic acid and an epoxide.

Reaction method utilizing diaphram type catalyst and apparatus therefor

There is disclosed a membrane for separation and dissociation of hydrogen, which comprises an amorphous alloy comprising at least one selected from the group consisting of Zr and Hf, and Ni. The membrane has high permeability only with regard to hydrogen, sufficient mechanical strength and structural stability in an atmosphere of hydrogen, and it does not require, substantially, noble metals, such as Pd and the like.

Amorphous Ni alloy membrane for separation/dissociation of hydrogen, preparing method and activating method thereof

A dehydrogenation apparatus comprising a dehydrogenation reaction chamber and a hydrogen combustion chamber adjoining to the dehydrogenation chamber through a hydrogen-permeable membrane, wherein the dehydrogenation reaction chamber has a tube for introducing a material to be dehydrogenated and a tube for discharging a dehydrogenation product, while the hydrogen combustion chamber has a tube for introducing oxygen or an oxygen-containing gas and a tube for discharging a hydrogen combustion gas, and the dehydrogenation reaction chamber and hydrogen combustion chamber are covered with a heat-insulating material.

Dehydrogenation process

Growing community of inventors

Tsukuba, Japan

Naotsugu Itoh