Kawasaki Jukogyo Kabushiki Kaisha

Toa Corporation

Toa Corportion

Takashi Nishino

Noriaki Izumi

Hironori Tajiri

Hiromasa Kusuda

Ken Iwayama

Shoji Tsujita

Manabu Masamoto

Masaki Tsuzawa

Hideo Tanaka

Ryoji Obara

A method for producing a saccharified solution making it possible that while the concentration of a solid in a reactor is kept high at an initial stage of hydrolyzing a cellulose contained in a biomass with an enzyme, the biomass is earlier solubilized to be made into a slurry form. In the method, at an initial stage of mixing an aqueous solution containing a biomass pulverized in a reactor, the aqueous solution is poured into reactor, and then pulverized biomass is supplied thereinto step by step while content in reactor is stirred. A final solid concentration in reactor is set into the range of 15 to 30% both inclusive by mass. The reactor's bottom plane is made into a conical or mirror plate form. At least in upper and lower parts of the reactor's inside, plural stirring fans having a long rotation radius are located to stir content in reactor.

Method for producing saccharified solution by enzymatic method using cellulose-type biomass as raw material

A biomass cake pressure-feeding apparatus includes: a screw pump including a first screw with a helical first conveying thread, a second screw with a helical second conveying thread, and a casing accommodating the first screw and the second screw such that the first screw and the second screw are parallel to each other, the screw pump being configured to feed biomass cake to a high pressure reactor, the biomass cake being obtained by adding water to powdery biomass; and a throttle part positioned downstream of the screw pump and configured to form a material seal made of the biomass cake by restricting a flow of the biomass cake.

Biomass cake pressure-feeding apparatus

A saccharification-reaction apparatus includes: a reactor which causes a saccharification-reaction of a raw material; and a raw material charging device which charges the raw material into the reactor at a predetermined interval; the reactor includes: a heating steam feeder which increases a temperature of the raw material charged from the charging device to a saccharification-reaction temperature; and a feeding mechanism which sequentially feeds each of the charged raw materials toward an outlet-port in a predetermined short period of time while causing the saccharification-reaction of each raw material under a high temperature and pressure; the raw material charging-device charges into the reactor, the raw material with a suitable bulk density for a saccharification-reaction speed of the reactor; in this manner, the saccharification-reaction apparatus charges the raw material in a hydrolytic saccharification state into the reactor by the raw material charging device; and hydrolytically saccharifying the raw material efficiently in the reactor.

Saccharification reaction apparatus

In the present disclosure, after a volatile organic acid is added as a catalyst to a slurry and the hydrolytic saccharification reaction of hemicellulose is performed, the volatile organic acid (including one added to the slurry and one produced as a by-product) contained in a C5 saccharified solution can be easily recovered by adding a small amount of sulfuric acid to the C5 saccharified solution and subjecting the C5 saccharified solution to air stripping treatment. The efficiency of hydrolytic saccharification of hemicellulose into C5 sugars using a volatile organic acid can also be continuously improved by adding the recovered volatile organic acid as a catalyst to another slurry of cellulosic biomass.

Method for producing ethanol using cellulosic biomass as raw material

A wide dispersion speaker systemcomprises a cone type speaker unit, and a restricting elementA. The restricting elementA is provided with a center holeat a center section thereof, and a peripheral holelocated outward relative to the center hole. The restricting elementA has an annular sound travel inhibiting portionpositioned radially outward relative to the center holeand radially inward relative to the peripheral hole. An outer end in a radial direction of the sound travel inhibiting portionis positioned at a substantially middle point between an outer end in the radial direction of the center holeand an outer end in the radial direction of the peripheral holeor positioned radially outward relative to the substantially middle point.

Wide dispersion speaker system and cover mounting structure for instrument directly mounted to flat portion

An auxiliary mounting devicefor an in ceiling speaker system comprises a ceiling reinforcing elementand an elongate element. The ceiling reinforcing elementincludes a flat plate portionand a vertical portionprovided to extend vertically from the flat plate portion,. The vertical portionis capable of being in a slidable state in which the vertical portionis vertically slidable and in a fixed state in which the vertical portionis fixed so as not to vertically displace.

Mounting support device for ceiling embedded speaker system

A wide dispersion speaker systemcomprises a cone type speaker unitand a restricting elementA. The restricting elementA is provided with a center holeat a center section thereof, and a peripheral holelocated outward relative to the center holeThe restricting elementA has an annular sound travel inhibiting portionpositioned radially outward relative to the center holeand radially inward relative to the peripheral holeAn outer end in a radial direction of the sound travel inhibiting portionis positioned at a substantially middle point between an outer end in the radial direction of the center holeand an outer end in the radial direction of the peripheral holeor positioned radially outward relative to the substantially middle point.

Growing community of inventors

Suita, Japan

Takashi Nishino