Sumitomo Seika Chemicals Co., Ltd.

Jfe Steel Corporation

Yoshinori Takata

Akio Fujibayashi

Masanori Miyake

Toshihiko Sumida

Kanji Ueda

Yasuhiro Mogi

Akira Kishimoto

Takashi Haraoka

Hitoshi Saima

Yoshiaki Imoto

Yoshinori Yoshida

Tadaichi Shibahara

Tsuguhiko Nakagawa

Itaru Sakai

A hydrogen production system (X) according to the present invention includes a reforming apparatus (Y) having a vaporizer () and a reforming reactor (), and a PSA apparatus (). In the vaporizer () a mixed material (hydrocarbon-based material, water, and oxygen) is heated and vaporized. In the reforming reactor (), steam reforming reaction and partial oxidation reaction of the hydrocarbon-based material take place at a time, so that reformed gas (containing hydrogen) is led out from the vaporized mixed material. In the PSA apparatus (), the reformed gas is introduced into an adsorption tower loaded with an adsorbing agent, so that an unnecessary component in the gas is adsorbed by the adsorbing agent and hence hydrogen-rich gas is led out of the tower, while the unnecessary component is desorbed from the adsorbing agent, so that hydrogen-containing desorbed gas that contains the unnecessary component and hydrogen remaining in the tower is discharged out of the tower. The desorbed gas is burnt in the vaporizer (), and combustion gas generated by burning the desorbed gas is utilized as a heat source to heat the mixed material.

Hydrogen production system and reforming apparatus

A method for treating drain in hydrogen production includes steps of gasifying in a gasifier (), reforming in a reformer (), gas-liquid separation in a gas-liquid separator (), PSA gas separation in a PSA separator () and evaporation in a drain treatment unit (). In the gasifying, a mixed material containing methanol is heated and gasified. In the reforming, reformed gas containing hydrogen is produced from the mixed material by reforming reaction of methanol. In the gas-liquid separation, a liquid component is separated from the reformed gas and discharged as drain. In the PSA gas separation, hydrogen-rich gas and offgas are extracted from the reformed gas by PSA separation using an adsorption tower. In the gasifying, the offgas is burned, and the mixed material is heated by using the combustion gas as heat source. In the evaporation, drain is evaporated using the combustion gas after heating the mixed material as heat source.

Method for treatment of drain in hydrogen production and hydrogen production system

A method for continuously treating a gas using an apparatus with a catalyst bed housed therein comprises the steps of passing a subject gas through the catalyst bed to adsorb the adsorbable substances in the subject gas thereto; and passing a regenerating gas through the catalyst bed adsorbed by the adsorbable substances in the subject gas to react and decompose them and simultaneously regenerate the catalyst bed. A particular apparatus is used with this method. By carrying out this method of the present invention using the gas treating apparatus, it is possible to continuously, efficiently and economically advantageously treat a gas containing a malodorous component, harmful component, organic solvent, hydrocarbon vapor or the like.

Method for treating gas and regenerating catalyst portion by portion

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Kako-gun, Japan

Yoshinori Takata