Nippon Steel Corporation

Nippon Steel Sumitomo Metal Corporation

Nippon Steel Engineering Co., Ltd.

Mitsubishi Gas Chemical Company, Inc.

Japan Oil, Gas and Metals National Corporation

Kobe Steel, Ltd.

Jfe Steel Corporation

Tohoku University

Nisshin Steel Co., Ltd.

Kabushiki Kaisha Kobe Seiko Sho

Kimihito Suzuki

Kenichiro Fujimoto

Kenji Nakao

Hidefumi Harada

Takashi Iijima

Yousuke Shinkai

Hongyu Liu

Takeshi Hamada

Maki Sato

Nobuaki Ito

Tsutomu Sugiura

Shouli Sun

Yoshinori Isahaya

Hiromasa Shoji

Yuzuru Kato

Yoshitaka Yamana

Taro Kono

Hatsuo Taira

Taro Kohno

Asuka Ohashi

Hitoshi Donomae

Kentaro Morita

Koki Inada

Ken-ichiro Fujimoto

Yasuki Namiki

Masazumi Tamura

Yoshinao Nakagawa

Keiichi Tomishige

Toshio Isohara

Provided are a method for producing carbonate esters, and a catalytic structure for producing carbonate esters, whereby solid catalyst powder formation and detachment are suppressed and superior carbonate ester reaction efficiency is yielded when a catalytic structure constituted by a sufficient quantity of a cerium-oxide-containing solid catalyst supported on a substrate is used. The method for producing carbonate esters includes reacting a monohydric alcohol and carbon dioxide in the presence of a catalytic structure and a hydrating agent. The catalytic structure includes a substrate and a catalytic layer that is formed on at least a portion of the surface of the substrate and contains a solid catalyst and an inorganic binder. The solid catalyst contains cerium oxide. The supported quantity of the solid catalyst is 15 g/mto 200 g/m, inclusive. The inorganic binder contains silica and/or alumina.

Method for producing carbonate esters, and catalytic structure for producing carbonate esters

The present invention provides a novel method for supplying a reducing gas to the shaft part of a blast furnace with which a large amount of reducing gas containing hydrogen at a high concentration can be supplied to a deeper position in the blast furnace (location of the blast furnace closer to the center axis in the radial direction) and with which it is possible to reduce the total generated amount of COof the COamount that is reduced by conducting hydrogen smelting in the blast furnace and the COamount that is generated during production of the reducing gas supplied to the blast furnace. The method for supplying a reducing gas to the shaft part of a blast furnace according to the present invention is characterized by reforming coke oven gas by increasing the temperature thereof to 1200 to 1800&#xb0; C. in a reactor in which an oxygen-containing gas is supplied to preheated coke oven gas to generate reformed gas in which hydrogen gas is enriched; mixing the reformed gas with CO-containing gas in the reactor so that the hydrogen concentration of the reducing gas is adjusted to 15-35 vol % (wet); and supplying the resultant reducing gas to the shaft part of the blast furnace under a condition of a ratio of a flow rate of reducing gas blown into shaft part/flow rate of reducing gas blown into tuyere &#x3e;0.42.

Method for supplying hydrogen-containing reducing gas to shaft part of blast furnace

Provided is a method for regenerating an aromatic amide compound into a corresponding aromatic nitrile compound, the method realizing a dehydration reaction of providing a target compound selectively at a high yield with generation of a by-product being suppressed. Also provided is a method for producing an aromatic nitrile compound that decreases the number of steps of dehydration reaction and significantly improves the reaction speed at a pressure close to normal pressure. Furthermore, the above-described production method is applied to a carbonate ester production method to provide a method for producing carbonate ester efficiently. The above-described objects are achieved by a method for producing an aromatic nitrile compound including a dehydration reaction of dehydrating an aromatic amide compound, in which the dehydration reaction uses diphenylether.

Method for producing aromatic nitrile compound and method for producing carbonate ester

Disclosed is a catalyst for reforming a tar-containing gas, wherein the catalyst contains at least one composite oxide as oxide containing nickel, magnesium, cerium and aluminum and the content of alumina as a single compound is limited to 5% by mass or less.

Catalyst for reforming tar-containing gas, method for preparing catalyst for reforming tar-containing gas, method for reforming tar-containing gas using catalyst for reforming tar containing gas, and method for regenerating catalyst for reforming tar-containing gas

A continuous fixed-bed catalytic reactor includes an inflow path for raw material gas for a catalytic reaction and an outflow path for reformed gas, a catalytic reaction container that is connected to the inflow path and the outflow path and holds a clumpy catalyst, catalyst holders that have a ventilation property and hold the clumpy catalyst, and a driving mechanism that moves the clumpy catalyst up and down by moving the catalyst holders up and down.

Continuous fixed-bed catalytic reactor and catalytic reaction method using same

The present invention provides a method for producing a highly active catalyst for reforming tar-containing gas used to treat crude gas for chemical energy conversion consisting of converting to a fuel composition consisting mainly of methane, hydrogen and the like, by utilizing sensible heat possessed by crude gas generated during thermal decomposition of carbonaceous raw materials, and using the high chemical reaction activity of high-temperature tar contained in and incidental to the crude gas to convert the tar to light hydrocarbons in the presence of a catalyst; a tar reforming method; and, a method for regenerating a catalyst for reforming tar-containing gas.

Method for producing catalyst reforming tar-containing gas, method for reforming tar and method for regenerating catalyst for reforming tar-containing gas

An exemplary method for producing a catalyst is provided where the catalyst includes a catalyst support on which a metallic compound is loaded. An impurity content of the catalyst can be in a range of approximately 0.01 mass % to 0.15 mass %. In particular, the exemplary method can include pre-treating the catalyst support to lower an impurity concentration of the catalyst support, and loading the metallic compound on the catalyst support after the pretreatment procedure.

Catalyst for producing hydrocarbon from syngas and producing method of catalyst

In a method of capturing carbon dioxide in a gas, carbon dioxide in a gas is adsorbed to the hybrid adsorbent prepared by mixing an adsorbent with iron oxide nanoparticles, microwaves are irradiated to the hybrid adsorbent and the carbon dioxide adsorbed to the hybrid adsorbent is desorbed from the hybrid adsorbent, and the carbon dioxide desorbed from the hybrid adsorbent is captured.

Hybrid adsorbent method of capturing carbon dioxide in gas and apparatus for capturing carbon dioxide in gas

A lithium secondary battery comprising a positive electrode active material, a negative electrode active material, and a non-aqueous electrolyte is disclosed. The negative electrode active material is a powder of a silicon material containing boron and has a boron content in the range of 0.1-50 wt. %.

Lithium secondary battery and active material for negative electrode in lithium secondary battery

Carbonaceous particles and carbonaceous fibers both coated with boron nitride, and lithium secondary cells produced by using the same as negative active material

A negative electrode material for a lithium secondary cell comprises carbonaceous particles consisting essentially of carbon fiber particles prepared by pulverizing pitch-based carbon fibers, wherein the layer spacing d between the carbon layers is less than 0.338 nm, the average particle size is 5-200 .mu.m, the fiber diameter of the pitch-based carbon fibers is 5-30 .mu.m, and the aspect ratio of the carbon fiber particles is 100 or less, the layer spacing d determined based on X-ray diffraction of the carbon fiber particles. A lithium secondary cell contains such a negative electrode material.

Negative electrode material for lithium secondary cell, method for its

Method for preparing negative electrode material for a lithium secondary

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Tokyo, Japan

Kimihito Suzuki