Abstract: A device for preparing bio-oil, a system for preparing bio-oil and a method for preparing bio-oil using the same are provided. Biomass is supplied to an inclined portion of a reactor, and high-temperature hot sand is supplied to an upper side of the biomass supplied to the inclined portion. Then, a heater heats the inclined portion. Thus, the fast pyrolysis performance of the biomass can be enhanced, thereby increasing the yield of bio-oil. Also, combustion gas produced from the heater is supplied to the interior of the reactor, so that the interior of the reactor can be simply formed under a nonoxidizing atmosphere. Accordingly, the device for preparing bio-oil can be manufactured into a very simple structure.

Abstract: The present invention relates to a plasma reaction apparatus and a plasma reaction method using the same. More particularly, the present invention relates to a plasma reaction apparatus which is applied to the reforming of fuel by generating rotating arc plasma and using the rotating arc being generated, the chemical treatment of a persistent gas, and the apparatus for decreasing NOx by an occlusion catalyst, and a plasma reaction method using the same. For this purpose, a raw material for a reaction is allowed to flow through an inflow hole in a swirl structure so that the raw material forms a rotating flow to progress. Accordingly, the raw material is sufficiently reacted in a plasma reaction space of a restrictive volume, and a high temperature plasma reaction is more promptly performed.

Abstract: A plasma reaction apparatus and method applied to reformation of fuel by generating and using rotating arc plasma in a furnace, the chemical treatment of a persistent gas, and the apparatus for decreasing NOx by an occlusion catalyst. A raw material for a reaction is allowed to flow into the furnace through a hole, causing it to flow within the furnace in a continuous swirl. Furthermore, an expanded plasma reaction zone is provided by a wide area chamber which is formed on an upper part of the furnace and has a greater width than that of a lower part of the furnace, and thus a plasma being generated can be expanded by the expanded plasma zone and delayed from flowing out of the furnace by corners of the wide area chamber that is spaced from a plasma inducing electrode therein.

Abstract: A device for preparing bio-oil, a system for preparing bio-oil and a method for preparing bio-oil using the same are provided. Biomass is supplied to an inclined portion of a reactor, and high-temperature hot sand is supplied to an upper side of the biomass supplied to the inclined portion. Then, a heater heats the inclined portion. Thus, the fast pyrolysis performance of the biomass can be enhanced, thereby increasing the yield of bio-oil. Also, combustion gas produced from the heater is supplied to the interior of the reactor, so that the interior of the reactor can be simply formed under a nonoxidizing atmosphere. Accordingly, the device for preparing bio-oil can be manufactured into a very simple structure.

Abstract: Disclosed is a flat-type non-thermal plasma reactor treating harmful gases, which can greatly improve durability against thermal stress, and stably generate low-temperature plasma in an environment in which gases to be treated for a vehicle has a wide variation range of temperature and a great variation volume with respect to a time, individually provide electrode leads of the high-voltage electrode stack section to high-voltage electrode plates, intercept overcurrent such as arc resulting from abnormal discharge by means of a fuse installed to each electrode terminal, prevent electric power from being supplied to a plasma layer in which an insignificant problem occurs as long as there is no problem of overall performance, and thus extend a lifetime of the flat-type non-thermal plasma reactor.

Abstract: The present invention relates to a plasma reaction apparatus and a plasma reaction method using the same. More particularly, the present invention relates to a plasma reaction apparatus which is applied to the reforming of fuel by generating rotating arc plasma and using the rotating arc being generated, the chemical treatment of a persistent gas, and the apparatus for decreasing NOx by an occlusion catalyst, and a plasma reaction method using the same. For this purpose, a raw material for a reaction is allowed to flow through an inflow hole in a swirl structure so that the raw material forms a rotating flow to progress. Accordingly, the raw material is sufficiently reacted in a plasma reaction space of a restrictive volume, and a high temperature plasma reaction is more promptly performed.

Abstract: Disclosed are a reactor and a method for processing hazardous gas, capable of improving a removing rate of the hazardous gas and the selectivity of a reacting process using a dielectric heat produced by a non-thermal plasma and a catalyst at a process of decomposing the hazardous gas. The reactor comprises a body having an inlet and an outlet; a plurality of planar electrodes arranged parallel in the body and spaced apart from each other at a certain interval, in which the plurality of planar electrodes are alternately connected to an alternating current power, and a ground such that every other planar electrode is connected to the alternating current power and the remaining planar electrodes are connected to the ground; and a power supply unit for applying a voltage of an alternating current frequency to the planar electrodes.

Abstract: Disclosed is a non-thermal plasma method for treating a toxic compounds-containing gas; the method comprising the steps of: filling alkali earth metal catalysts and dielectrics within a plasma reactor; the alkali earth metal catalysts being made by substituting alkali earth metal cations for cations of aluminum/silicon molecular sieves used as carriers; introducing a toxic compounds-containing gas into the plasma reactor; and supplying AC power or pulse power to the plasma reactor generating a non-thermal plasma and thus decomposing or oxidizing the toxic compounds. Also to stabilize the plasma more during the non-thermal plasma process and to enhance treatment efficiency of the toxic compounds, the catalysts substituted by the alkali earth metal are filled together with the well-known dielectrics within the plasma reactor; the alkali earth metal catalysts being electrically less conductive and inexpensive.

Abstract: A fire grate assembly for stoker incinerators. A plurality of stationary and movable grate members are alternately arranged in the assembly. The assembly also has a preventing member, such as a liner plate, which is detachably mounted to an end of each of the movable grate members for preventing the stationary grate members and the movable grate members from directly contacting each other, while allowing the movable grate members to be linearly movable relative to the stationary grate members. The preventing member is replaceable and can have a countersunk hole, thus being adapted for bolting the end of each of the movable grate members.