Mitsubishi Heavy Industries Limited

Konica Corporation

Konica Minolta Opto, Inc.

Nec Solution Innovators, Ltd.

Other

Konica Minolta, Inc.

Konica-minolta Holdings, Inc.

The Kansai Electric Power Co., Inc.

Kanazawa University

Nippon Nyukazai Co., Ltd.

Ryoen Technical Service Corp.

Kazuo Ishida

Yudai Kato

Fumiaki Sato

Makoto Susaki

Hajime Nagano

Shintaro Honjo

Masahiro Harada

Kouji Horizoe

Etsuzo Kurihara

Susumu Okino

Yuichi Atarashi

Shinichiro Saito

Norikazu Arai

Haruaki Hirayama

Moritoshi Murakami

Shinji Ogino

Hiroyuki Hattori

Shogo Yamamoto

Masaki Yushima

Seiji Kakesako

Takashi Matsumaru

Motonari Aihara

Taichiro Saito

Takuya Hirata

Nobuyoshi Mori

Hiroshi Tanaka

Tomio Mimura

Masakazu Sakaguchi

Hiroshi Nakashoji

Shinya Tachibana

Hiroyuki Furuichi

Yuudai Katou

Takashi Nojo

Kenji Saito

Tatsuya Tsujiuchi

Tsuyoshi Oishi

Takuji Hatano

Yoshinori Koyama

Kozo Iida

Masahiro Hirano

Atsuhiro Yukumoto

Ryosuke Araki

Ryuji Yoshiyama

Katsuhiko Yokohama

Hiroshi Suzumura

Setsuo Tokuhiro

Mikiya Sakurai

Hidehisa Mita

Hideyuki Shimizu

Yutaka Takahashi

Mayumi Kato

Kazuyo Kitaoka

Miho Shogenji

Akira Johana

Yoshitaka Toyoizumi

Etsumi Nakajo

Mitsugi Suehiro

Makoto Suzaki

Toshiyuki Koshimizu

Hiroyuki Furuich I

An activity amount calculation system includes a plurality of detection units and an activity amount calculation device. The plurality of detection units detect a resident and output detection signals when the resident passes through doorways of a plurality of rooms. The calculation device includes a calculation unit and a summation unit. Upon detection of the resident by the detection units, the calculation unit calculates an activity amount of the resident based on relationships between detection units and reference activity amounts. The summation unit repeatedly calculates a total activity amount of the resident in a predetermined period by summing activity amounts calculated by the calculation unit.

Activity amount calculation system, activity amount calculation device, activity amount calculation method, and computer-readable recording medium

The system is provided with: a first heat exchanger which is interposed at an intersection between a rich solution supply line and a lean solution supply line, which has absorbed COand HS extracted from a bottom portion of an absorber, and a regenerated absorbent; a second heat exchanger which is interposed at an intersection between a semi-rich solution supply line and a branch line branched at the branch portion C from the lean solution supply line, and the lean solution; a merging portion which merges a branch line configured to supply the lean solution after heat exchange with the lean solution supply line; and a flow rate adjusting valve which is interposed in the lean solution supply line to adjust the distribution amount of the lean solution.

[object Object]

A degradant concentration measurement deviceaccording to the invention has an electric conductivity measurement instrumentA measuring the electric conductivity of a lean solutionthat is an acidic gas-absorbing solution and detection meansobtaining the concentration of a degradant contained in a lean solutionfrom the measured electric conductivity of the lean solutionbased on the relationship between the previously-obtained electric conductivity of the lean solutionand the concentration of the degradant contained in the lean solution

Degradant concentration measurement device and acidic gas removal device

The system includes: an absorber which brings an introduction gas into contact with an absorbent that absorbs COand HS; an absorbent regenerator which releases COor the like to regenerate the absorbent; a second supply line which returns a regenerated absorbent to the absorber from the regenerator; a third supply line which extracts a semi-rich solution from the vicinity of a middle stage of the absorber, and introduces the semi-rich solution to the vicinity of the middle stage of the regenerator; and a semi-rich solution heat exchanger which is interposed at an intersection between the third supply line and the second supply line to perform the heat exchange between the semi-rich solution and the lean solution.

A direct reduced iron manufacturing system includes a gas reformer for supplying steam to reform natural gas, a gas heater being a heating unit for heating a reformed gas reformed by the gas reformer to a predetermined temperature, a direct reduction furnace for reducing iron ore directly into reduced iron using a high-temperature reducing gas, an acid gas removal unit having an acid gas component absorber and a regenerator for releasing the acid gas, and a recovery gas introduction line for supplying a recovery gas released from the regenerator to each of a reforming furnace of the gas reformer and a furnace of the gas heater.

Direct reduced iron manufacturing system

A person detector detects a person in an area facing one door surface. An open/close detector detects whether the door is in an open or closed state. When a detected state of the door switches from a closed state to an open state, an open-state person detection information recorder records whether the person detector is detecting a person or not. When the state of the door detected by the open and close detection sensor switches from the open state to the closed state, a closed-state person detection information recorder records whether the person detector is detecting a person or not. A room entry and exit detector detects that there occurs an entry into the room and there occurs an exit out of the room on the basis of a content recorded by the open-state person detection information recorder and the closed-state person detection information recorder.

Room entry/exit detection apparatus, room entry/exit detection method, and computer-readable recording medium having program recorded thereon

Included are: a direct reduction furnace for reducing iron ore directly into reduced iron using a high-temperature reducing gas including hydrogen and carbon monoxide, an acid gas removal unit having an acid gas component absorber for removing, with an absorbent such as an amine-based solvent, acid gas components (CO, HS) in a reduction furnace flue gas discharged from the direct reduction furnace, and a regenerator for releasing the acid gas, and a degradation product removal unit for separating and removing a degradation product in the absorbent used by circulating through the absorber and the regenerator.

A solar light collecting mirror includes a reflective section which is elastically deformable, and a frame which is elastically deformable and configured to support the reflective section. A central portion of the reflective section is positionally fixed in X and Y directions of the reflective section. A relative position in a Z direction between the central portion of the reflective section and a peripheral portion of the reflective section is changeable. The peripheral portion of the reflective section is not positionally fixed in the X and Y directions. The frame includes warp members which radially extend from a position corresponding to the central portion of the reflective section. And the reflective section is configured to deform elastically together with the frame so as to change the relative position in the Z direction between the central portion and the peripheral portion, whereby a concave mirror structure is obtained.

Solar light collecting mirror and solar thermal power generation system having solar light collecting mirror

An absorber that uses a gasified gas containing COand HS formed by gasifying coal, for example, as an introduced gas, and that makes the COand HS absorbed from the introduced gas by bringing the introduced gas into contact with an absorbent for absorbing C0and HS; an absorbent regenerator-that extracts absorbent that has absorbed COand HS from the bottom of the absorber and introduces the absorbent from the top of the absorber, and that regenerates the absorbent by releasing the COand HS; a second supply line that returns the regenerated absorbent from the regenerator to the absorber; and a third supply line that extracts the absorbent (semi-rich solution) that has absorbed a part of the COand HS from the vicinity of the middle of the absorber, and that introduces the semi-rich solution in the vicinity of the middle of the regenerator.

A method and system for recovering COfrom gasification gas, prevents the recovered COfrom being contaminated with COS, without repeating cooling and heating operations and without increasing the steam consumption. Gasification gas being produced in a gasifierand containing CO, CO, COS and HS is subjected to dust removal in a scrubber. Then, a part of the gas is subjected to a CO shift reaction, in which CO is converted into CO, in a CO shift reactor. Another part of the gasification gas is not subjected to the CO shift reaction by means of a bypass, and is mixed with the gas after the CO shift reaction. Thereby, the temperature of the mixture gas is set at 180&#xb0; C. to 300&#xb0; C., and COS in the mixture gas is converted into HS in a COS converter

A method includes a first step of, with a CO.HS stripper maintained to have a pressure higher than atmospheric pressure, from the ammonia-containing wastewater, discharging COand HS in a form of gas having a low moisture concentration from a tower top of the CO.HS stripper while discharging an ammonia-containing solution from a tower bottom of the CO.HS stripper; a second step of introducing the ammonia-containing solution obtained after the first step into an ammonia stripper which is maintained to have a lower pressure than that of the CO.HS stripper, and thereby discharging a gas rich in ammonia containing a small amount of HS and COfrom a tower top of the ammonia stripper while discharging water usable as industrial water from a tower bottom of the ammonia stripper; and a third step of introducing the ammonia rich gas obtained after the second step into a washing tower which is maintained to have a lower pressure than that of the ammonia stripper, and thereby discharging a wastewater containing a Na compound from a tower bottom of the washing tower while discharging a HS-free gas rich in ammonia from a tower top of the washing tower.

Ammonia recovery device and recovery method

A method and system for recovering COfrom gasification gas, prevents the recovered COfrom being contaminated with COS, without repeating cooling and heating operations and without increasing the steam consumption. Gasification gas being produced in a gasifierand containing CO, CO, COS and HS is subjected to dust removal in a scrubber. Then, a part of the gas is subjected to a CO shift reaction, in which CO is converted into CO, in a CO shift reactor. In one embodiment, part of the gasification gas is not subjected to the CO shift reaction by means of a bypass, and is mixed with the gas after the CO shift reaction. Thereby, the temperature of the mixture gas is set at 180&#xb0; C. to 300&#xb0; C., and COS in the mixture gas is converted into HS in a COS converterIn another embodiment, the part of the gasification gas not subjected to the CO shift reaction by means of a bypass, is subjected to heat exchangewith the shifted gas stream and converted in a COS converterprior to mixing with the shifted gas.

A method and an apparatus for separating acidic gases from syngas are capable of reducing the necessary power and are capable of obtaining high-purity COat a high recovery ratio. A purification method and a purification system of coal gasification gas using the method and the apparatus are also provided. An apparatus for separating acidic gases from syngas containing acidic gases of C02 and H2S, in order, converts CO in the syngas into C02, removes H2S contained in the syngas by using a solvent for physical absorption, removes physical solvent from the syngas followed by heating in a heat exchanger using the converted syngas heat, and removes C02 from the heated syngas by using a solvent for chemical absorption.

Method and apparatus for separating acidic gases from syngas

An optical element for reflecting solar light has excellent weather resistance, and furthermore, a high reflectance in a wide band. When solar light enters an optical element (OE), light (L) in a short wavelength band among the solar light is reflected by a dielectric multilayer film (DF). Other light (L) in longer wavelength bands are passed through the dielectric multilayer film (DF), then a base material (SS), and reflected by a metal deposition film (MV) to pass through the base material (SS) and the dielectric multilayer film (DF). Thus, high reflectance in a wide band is ensured.

Optical element

Growing community of inventors

Yokohama, Japan

Kazuo Ishida