摘要:
There is provided a liquid-to-gas contact device comprising: a liquid-to-gas contact medium which is a honeycomb structural body formed of a porous material including a plurality of through channels defined by a plurality of partition walls and extending through the structural body in an axial direction, and including a plurality of flow passages extending through the honeycomb structural body from an outer peripheral surface side and formed isolatedly from the through channels; and a container which includes a gas inlet, a gas outlet, a liquid supply port, a storage tank for liquid, and, if desired, a liquid discharge port and in which the liquid-to-gas contact medium is to be stored. A capillarity phenomenon function possessed by the liquid-to-gas contact medium is used to provide the device which has a superior thermal efficiency and which can be constituted to be simple and compact.
摘要:
In the plasma reaction vessel (1) of the invention, two or more laminate-structures (6) having ceramic formed bodies (3, 4) in which a plasma generating electrode (2) capable of generating plasma is formed in two-tape-form, and an electrically continuous film-like electrically conductive electrode (5) held between the two ceramic formed bodies (3, 4) are formed in such a manner as to form a plasma generating space (7) containing mutual laminate planes therein. Of the electrically conductive electrodes (5), adjacent ones are capable of having electric discharge produced therebetween so as to generate the plasma in the plasma generating space (7) and of generating uniform stabilized plasma at low electric power, it being possible to reduce a passage resistance to a gas passing therein.
摘要:
In the plasma reaction vessel (1) of the invention, two or more laminate-structures (6) having ceramic formed bodies (3, 4) in which a plasma generating electrode (2) capable of generating plasma is formed in two-tape-form, and an electrically continuous film-like electrically conductive electrode (5) held between the two ceramic formed bodies (3, 4) are formed in such a manner as to form a plasma generating space (7) containing mutual laminate planes therein. Of the electrically conductive electrodes (5), adjacent ones are capable of having electric discharge produced therebetween so as to generate the plasma in the plasma generating space (7) and of generating uniform stabilized plasma at low electric power, it being possible to reduce a passage resistance to a gas passing therein.
摘要:
In the plasma reaction vessel (1) of the invention, two or more laminate-structures (6) having ceramic formed bodies (3, 4) in which a plasma generating electrode (2) capable of generating plasma is formed in two-tape-form, and an electrically continuous film-like electrically conductive electrode (5) held between the two ceramic formed bodies (3, 4) are formed in such a manner as to form a plasma generating space (7) containing mutual laminate planes therein. Of the electrically conductive electrodes (5), adjacent ones are capable of having electric discharge produced therebetween so as to generate the plasma in the plasma generating space (7) and of generating uniform stabilized plasma at low electric power, it being possible to reduce a passage resistance to a gas passing therein.
摘要:
In the plasma reaction vessel (1) of the invention, two or more laminate-structures (6) having ceramic formed bodies (3, 4) in which a plasma generating electrode (2) capable of generating plasma is formed in two-tape-form, and an electrically continuous film-like electrically conductive electrode (5) held between the two ceramic formed bodies (3, 4) are formed in such a manner as to form a plasma generating space (7) containing mutual laminate planes therein. Of the electrically conductive electrodes (5), adjacent ones are capable of having electric discharge produced therebetween so as to generate the plasma in the plasma generating space (7) and of generating uniform stabilized plasma at low electric power, it being possible to reduce a passage resistance to a gas passing therein.
摘要:
There is disclosed a honeycomb structural body (1) comprising: a plurality of through channels (3) formed by a plurality of partition walls (2) in an axial direction. The honeycomb structural body (1) is constituted of a plurality of honeycomb sections (10, 11) formed of materials having different characteristics, and the plurality of honeycomb sections (10, 11) are directly bonded to and integrated with one another. According to the structure of this honeycomb structural body, different high performances can be fulfilled in accordance with requests for each honeycomb section. Additionally, there is not any local stress concentration by shape mismatch of each honeycomb section or presence of a bond material, and reliability at the time of use, and the like can be enhanced.
摘要:
A honeycomb heater comprising a honeycomb structure and a catalyst layer supported on partition walls of the honeycomb structure. The honeycomb heater includes a first portion that is resistance adjusted such that the first portion is adapted to heat more quickly than a second portion of the honeycomb heater. The first portion includes at least an inlet end of the honeycomb that receives gas that flows therethrough. In addition, the first portion has an area along the gas inlet within a range of 5 to 50% of the sectional area of the gas inlet. The first portion may extend through the honeycomb structure and terminate before reaching the gas outlet of the heater. The partition walls of the first portion may have a different hydraulic diameter, different thickness or different cell density than the second portion of the honeycomb heater.
摘要:
A honeycomb heater including a honeycomb structure which is made of a conductive material and which has a number of passages substantially parallel to a gas flow direction partitioned by partition walls and which has respective providing a gas inlet and a gas outlet, and at least two electrodes for electrification provided on the honeycomb structure. The honeycomb heater is characterized in that besides the passages, orifices which have a larger hydraulic diameter than the passages and which narrow a current flow path are formed at predetermined positions of the honeycomb structure to adjust resistance, whereby a specific region of the honeycomb heater is locally heated more quickly as compared with other regions at the time of the electrification.
摘要:
A catalyst for purification of exhaust gases, comprising a monolithic carrier and a catalyst layer formed thereon for reduction of the carbon monoxide, hydrocarbons and nitrogen oxides emitted from internal combustion engines, wherein (1) the catalyst layer contains catalyst particles each comprising a heat-resistant inorganic oxide and at least one noble metal selected from Pt, Pd and Rh, loaded thereon, (2) the catalyst layer contains, as a whole, three noble metals of Pt, Pd and Rh, (3) the catalyst layer contains, at any position ranging from the outer surface to the midpoint of the thickness, catalyst particles comprising a heat-resistant inorganic oxide and 2-10% by weight, based on the inorganic oxide, of Pd loaded thereon, and (4) the catalyst layer has, at the outer surface, exposed catalyst particles comprising an heat-resistant inorganic oxide and at least Rh loaded thereon.
摘要:
A catalytic converter suitable for use in controlling automotive exhaust emissions including a honeycomb heater disposed downstream of a main monolithic catalyst or between main monolithic catalysts. The honeycomb heater includes a honeycomb structure with a catalyst carried thereon and with at least two electrodes provided thereon to supply a current thereto. A catalytic converter also includes a monolith catalyst for ignition which is disposed downstream of the honeycomb heater. A catalytic converter includes, in place of the honeycomb heater and the monolithic catalyst, a module which is composed of a catalyzed light-off honeycomb heater or of a honeycomb heater and a light-off monolithic catalyst. The module is removably disposed upstream or downstream of a main monolithic catalyst, or between main monolithic catalysts.