摘要:
The ceramic plasma reactor includes: a plurality of unit electrodes each of which comprises a plate-shaped ceramic dielectric body 4 and a conductive film 3 embedded in the ceramic dielectric body superimposing them each other with a gap which works as a discharge portion 11, and preferably being formed by sandwiching one unit electrode 2b having no through holes 15 by two unit electrodes having plural through holes 2a there between. A partition wall plate 9 is provided by facing one of unit electrodes on a side opposite to the gap and being held by a holding member 7 at a predetermined distance so as to form there between a gas introducing-circulating portion 21 for introducing and circulating gas in the through-holes 15 so as to send gas introduced to the gap between the unit electrodes as a discharge portion by applying a voltage thereto to generate plasma.
摘要:
A reactor includes a reaction vessel having an inlet for to-be-reformed gas and an outlet for reformed gas, a pair of electrodes for plasma generation, disposed in the internal space of the reactor vessel so as to face each other, a power source for applying a voltage to the pair of electrodes, and a catalyst for promoting the reforming reaction of to-be-reformed gas, wherein one of the pair of electrodes is a linear electrode, the other of the pair of electrodes is a honeycomb electrode made of a conductive ceramics, the catalyst is loaded on the partition walls of the honeycomb electrode, and the ratio of the maximum outer diameter d1 of each cell-opening end face of the honeycomb electrode to the length L1 of the honeycomb electrode in the cell-extending direction is in a range of 0.50 to 1.2.
摘要:
A plasma reactor includes a honeycomb electrode in which a plurality of cells that function as gas passages are partitioned by a partition wall, and a discharge electrode. The honeycomb electrode includes a first gas circulation section that allows a first gas to pass through, and a second gas circulation section that allows a second gas to pass through. The plasma reactor causes the first gas introduced into the first gas circulation section of the honeycomb electrode through the space between the electrodes to undergo a reaction while causing a plasma discharge between the honeycomb electrode and the discharge electrode, and allows the second gas to be introduced into the second gas circulation section of the honeycomb electrode to transfer heat of the second gas to the first gas circulation section to promote the reaction of the first gas.
摘要:
Reactor 1A includes a reaction vessel 10 having an inlet 4 for a to-be-reformed gas 2 and an outlet 8 for a reformed gas 6, a pair of electrodes 12 for plasma generation, a power source 14 for applying a voltage to the pair of electrodes 12, and a catalyst for promoting a reforming reaction, wherein one of the pair of electrodes 12 is a linear electrode 32, the other of the pair of electrodes 12 is a honeycomb electrode 34 made of a conductive ceramics, and the catalyst is loaded on the partition walls of the honeycomb electrode 34, which reactor further includes shielding members 30A placed between the linear electrode 32 and the honeycomb electrode 34, which are protruded toward the gas-introducing end face side of the honeycomb electrode 34 and prevent the inflow of the to-be-reformed gas 2 passing through a zone other than a plasma-generating zone 42.
摘要:
A reactor 100 includes: a honeycomb-structured reformer 1 having partition walls 3 separating and forming a plurality of cells 2 functioning as fluid passages extending through from one end face to the other end face, having a liquid supply hole 6 having an opening portion 5 on a side face 4, capable of evaporating liquid supplied inside, and capable of reforming the evaporated liquid; a liquid supply tube 11 inserted into the liquid supply hole 6 in order to supply liquid to the reformer 1; and a heating apparatus 21 for heating the reformer 1. The reactor can reform a liquid with saving energy and a space by performing evaporation and reforming of the liquid in a reformer.
摘要:
Reactor 1A includes a reaction vessel 10 having an inlet 4 for a to-be-reformed gas 2 and an outlet 8 for a reformed gas 6, a pair of electrodes 12 for plasma generation, a power source 14 for applying a voltage to the pair of electrodes 12, and a catalyst for promoting a reforming reaction, wherein one of the pair of electrodes 12 is a linear electrode 32, the other of the pair of electrodes 12 is a honeycomb electrode 34 made of a conductive ceramics, and the catalyst is loaded on the partition walls of the honeycomb electrode 34, which reactor further includes shielding members 30A placed between the linear electrode 32 and the honeycomb electrode 34, which are protruded toward the gas-introducing end face side of the honeycomb electrode 34 and prevent the inflow of the to-be-reformed gas 2 passing through a zone other than a plasma-generating zone 42.
摘要:
There is provided a heat exchanger realizing downsizing, weight saving, and cost reduction in comparison with a conventional heat exchange element or heat exchanger. The heat exchanger is provided with a first fluid flow portion formed of a honeycomb structure having a plurality of cells partitioned by ceramic partition walls and extending from one end face to another end face in an axial direction to allow a heating medium as a first fluid to flow therein, and a second fluid flow portion formed of a casing containing the honeycomb structure therein, the casing having an inlet and an outlet for a second fluid, and the second fluid flowing on an outer peripheral face of the honeycomb structure to receive heat from the first fluid.
摘要:
An electromagnetic valve has a fixed core, a movable core, a coil attract the fixed core and the movable core each other, a valve body and a valve seat member including a funnel-shaped valve seat surface and an inlet path. The flow path is closable by retreat/advance of the valve body relative to the valve seat surface. The valve body includes a semi-spherical seal portion and a stem portion extending from the seal portion towards the movable core, a diameter of an end portion of the seal portion at the stem portion side is larger than a diameter of an end portion of the stem portion at the seal portion side. A space is defined in an area located on an extended line extending from a small diameter end portion to a large diameter end portion of the valve seat surface.
摘要:
A lithium secondary battery using lithium manganese oxide as a positive active material and having excellent charge and discharge cycle properties.As a positive active material of a lithium secondary battery, lithium manganese oxide having a cubic spinel structure, in which the strength ratio (P2/P1 strength ratio) of the primary endothermal peak (P1) appearing around 950° C. and the secondary endothermal peak (P2) appearing around 1100°0 C. in differential thermal analysis is under 1, is used.
摘要:
In AlN crystal grains constituting a sintered body, is contained: 150 ppm-0.5 wt. %, preferably at most 0.1 wt.%, of at least one rare earth element (as oxide thereof); at most 900 ppm, preferably at most 500 ppm of at least one metal impurity except rare earth elements; and preferably at least 0.5 wt. % of oxygen measured by an electron probe X-ray microanalyzer. The grains have an average grain diameter of preferably at least 3.0 .mu.m and show a main peak in the wavelength range of 350-370 nm of spectrum obtained by a cathode luminescence method. The sintered body composed of AlN crystal grains has a volume resistivity at room temperature of at most 1.0.times.10.sup.12 .OMEGA..multidot.cm.