HYDROGENATION CATALYST AND ITS PRODUCTION

    公开(公告)号:JP2000246110A

    公开(公告)日:2000-09-12

    申请号:JP5327099

    申请日:1999-03-01

    Abstract: PROBLEM TO BE SOLVED: To provide a hydrogenation catalyst comprising a non-carried powder and its producing method. SOLUTION: Cobalt sulfide is previously comminuted, molybdenum sulfide is added and they are mixed and comminuted to produce the objective hydrogenation catalyst comprising molybdenum sulfide and cobalt sulfide mixed powder. In other way, nickel sulfide is previously comminuted, molybdenum sulfide is added and they are mixed and comminuted to produce the objective hydrogenation catalyst comprising molybdenum sulfide and nickel sulfide mixed powder.

    COAL LIQUEFACTION
    3.
    发明专利

    公开(公告)号:JPH0476096A

    公开(公告)日:1992-03-10

    申请号:JP18914490

    申请日:1990-07-17

    Abstract: PURPOSE:To liquefy coal while catalytic activity at least equal to that of a powdery catalyst is dynamically revealed and maintained without the necessity for grinding, when a catalyst is synthesized or prepared, by performing coal liquefaction while vibrating a layer filled with a metal having catalytic activity. CONSTITUTION:A filled layer formed from a metal having catalytic activity, such as iron or molybdenum, in the form of a sphere or rod, is maintained at 350-450 deg.C under a hydrogen pressure of 10-20 MPa, the filling material therein is vibrated, and hydrogen, sulfur, a solvent, and coal are supplied to the vibrated layer, thus performing coal liquefaction. It is desirable that the size of the filling material is in the range from 1 to 5 mm. To vibrate the filling material, the container as a whole can be vibrated, or only the filling material can be vibrated by utilizing electromagnetic induction. It is desirable that the frequency of vibration is at least 20 Hz.

    GAS-LIQUID CONTACT DEVICE
    4.
    发明专利

    公开(公告)号:JPH10249183A

    公开(公告)日:1998-09-22

    申请号:JP8328697

    申请日:1997-03-17

    Abstract: PROBLEM TO BE SOLVED: To improve contact efficiency by providing a gas blowing hole communicated with a hollow inside part of a hollow rotary shaft at the outside end part of a rotary member to generate upward liquid flow and blowing a gas in the upper liquid flow to allow the gas to contact with the liquid in parallel. SOLUTION: The rotary member 4 is a member rotating in the horizontal direction by the hollow rotary shaft 2 and the gas blowing hole 8 is provided at the outside end part thereof. The gas blowing hole 8 is communicated with the hollow inside of the hollow rotary shaft 2 and the gas introduced into the inside through a gas suction hole 7 provided at a part positioned in an in-vessel gas phase part G of the hollow rotary shaft 2 is ejected from the gas blowing hole 8 by the rotation of the rotary member 4. And an outside pipe 5 is composed of a hollow pipe, arranged at the outside of the hollow rotary shaft 2 so as to envelope the shaft 2 and the gas suction hole 11 for sucking the liquid into inside of the outside pipe 5 is provided at a part positioned at an in-vessel liquid phase part L.

    PRODUCTION OF METAL OXIDE AEROGEL

    公开(公告)号:JPH10130003A

    公开(公告)日:1998-05-19

    申请号:JP3375897

    申请日:1997-02-18

    Abstract: PROBLEM TO BE SOLVED: To obtain an aerogel of an excellent bulk body free from the generation of shrinkage and crack by holding a wet gel body of a metal oxide, a solvent and a specific material under a prescribed condition and removing the solvent to dry the wet gel body. SOLUTION: The wet gel body of the metal oxide (e.g. a silica wet gel body obtained by impregnating the gel body, which is obtained by mixing tetramethoxysilane with a methanol/ammonia water, pouring to a prescribed shaped vessel and allowing to stand, with methanol to remove an unreacted component), the solvent (e.g. methanol) and a granular zeolite having preferably 2-3mm average particle diameter are held under the critical condition or super critical condition (e.g. 280 deg.C 140atm) of the solvent preferably for 1-3hr and after that, the solvent is gradually released and removed to dry the wet gel body.

    CONTINUOUS PRODUCTION OF CARBON NANOTUBE AND APPARATUS THEREFOR

    公开(公告)号:JPH07216660A

    公开(公告)日:1995-08-15

    申请号:JP2603994

    申请日:1994-01-28

    Abstract: PURPOSE:To provide a process for the continuous mass-production of carbon nanotube while stabilizing electrical discharge and keeping the stability and reliability of the operation. CONSTITUTION:This apparatus for the continuous production of carbon nanotube is provided with a closed vessel 1, a cathode 2 placed in the closed vessel keeping the center axis in horizontal direction, an anode 6 horizontally placed in the closed vessel in a state opposite to the cathode face of the cathode and separating the center axis from the center of the cathode by a definite distance, driving mechanisms 4, 5 to continuously or intermittently rotate or reciprocate the cathode and the anode relative to each other, an anode-moving mechanism 7 for supporting and horizontally transferring the anode, an inert gas passing means 11 to pass an inert gas through the closed vessel, a power-supplying means 9 to apply a prescribed electric power between the anode and the cathode and a precipitate-removing means 8 to remove the substance precipitated on the cathode surface of the cathode.

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