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    MEASURING DEVICE FOR READILY EVALUATING SEPARATIVE POWER OF CERAMIC TO SEPARATE NITROGEN FROM CARBON DIOXIDE
    3.
    发明专利
    MEASURING DEVICE FOR READILY EVALUATING SEPARATIVE POWER OF CERAMIC TO SEPARATE NITROGEN FROM CARBON DIOXIDE 失效

    公开(公告)号：JPH0894598A

    公开(公告)日：1996-04-12

    申请号：JP30593193

    申请日：1993-11-10

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： HORIO MASAKAZU ,  SUZUKI KENJI ,  MORI TOSHIAKI

    IPC: G01N33/38 ,  G01N30/00 ,  G01N30/89

    Abstract: PURPOSE: To enable readily evaluating the separative power of ceramics to separate nitrogen from carbon dioxide by providing a sample-packed portion, a sample heating portion, an analytical portion, a recording portion, and a nitrogen/carbon dioxide injecting portion. CONSTITUTION: A sample-packed portion 1 is a stainless steel or glass pipe about 3mmϕ in bore and about 1m long and filled with a ceramics sample. A sample heating portion 2 is an electric furnace having a temperature controller 3 for keeping temperature constant. An analytical portion 4 is a TCD-equipped gas chromatograph and its data are recorded by a recording portion 5. Lines are connected together by a stainless steel or glass pipe, through which helium is circulated as a carrier gas by about 20ml/min. A nitrogen/carbon dioxide injecting portion 6 having a rubber plug mounted in a lateral hole bored in the pipe is provided in front of the packed portion 1, and mixed gases of nitrogen and carbon dioxide are introduced from the portion 6 to start measurements. Evaluation of separative power can be made quickly and easily since it can be achieved by simply checking the retention times of the nitrogen and the carbon dioxide, which are described at the recording portion 5.

    METHOD FOR SEPARATING NITROGEN AND CARBON DIOXIDE USING CERAMIC SEPARATING MATERIAL
    6.
    发明专利
    METHOD FOR SEPARATING NITROGEN AND CARBON DIOXIDE USING CERAMIC SEPARATING MATERIAL 失效

    公开(公告)号：JPH0819722A

    公开(公告)日：1996-01-23

    申请号：JP30593493

    申请日：1993-11-10

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： HORIO MASAKAZU ,  SUZUKI KENJI ,  MORI TOSHIAKI ,  INUKAI KEIICHI ,  WATAMURA SHINJI

    IPC: B01D53/34 ,  B01D53/02 ,  B01D53/62 ,  B01J20/12 ,  B01J20/281 ,  C01B33/22 ,  C04B35/16

    Abstract: PURPOSE:To obtain a thermally stable separating material which can separate high temperature nitrogen and carbon dioxide by using ceramics prepared by a method in which sepiolite, after being ion-exchanged with zinc ion, is heat- treated as a separating material. CONSTITUTION:Sepiolte, a clay mineral, is added into an aqueous solution of zinc nitrate etc., and the mixture is stirred adequately and allowed to stand at room temperature so that sepiolite is ion-exchanged with zinc ion. The sepiolite is dried and heat-treated at 800 deg.C or below. When the separating material thus obtained is contacted with high temperature exhaust gas from fixed sources such as factories, nitrogen or carbon dioxide, after being adsorbed on the ceramics for the respective lengths of retention time, are desorbed. In this way, nitrogen and carbon dioxide are separated to contribute to the global environmental preservation.

    PRODUCTION OF INTERLAYER CROSS-LINKED CLAY HAVING ARBITRARY LAYER SPACE
    7.
    发明专利
    PRODUCTION OF INTERLAYER CROSS-LINKED CLAY HAVING ARBITRARY LAYER SPACE 失效

    公开(公告)号：JPH04254410A

    公开(公告)日：1992-09-09

    申请号：JP9988091

    申请日：1991-02-01

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： SUZUKI KENJI ,  HORIO MASAKAZU ,  MASUDA HIROYUKI ,  MORI TOSHIAKI

    IPC: C01B33/26 ,  B01J20/12 ,  B01J21/16 ,  B01J29/04 ,  C01B33/38 ,  C01B33/40 ,  C01B37/00

    Abstract: PURPOSE:Interlayer cross-linked clay is provided with two dimensional fine pores lightly larger than that of zeolite and has been exemplified for use as catalizer, catalyst carrier, adsorbent and separating member, etc. To establish the method for controlling each layer space and pillar space, as fine pore shape of interlayer cross-linked clay is standardized by layer space and pillar space. CONSTITUTION:This method consists of an addition of pillar precurser into suspended solution of clay coexisted with a water soluble polymer, drying and heating to obtain interlayer cross-linked clay having arbitrary layer space, and is especially specified to produce interlayer cross-linked clay having arbitrary layer distance by controlling quantity of an addition of pillar precurser. By this means, control of layer space is attained within 2.5nm range and the development of new functional performances of interlayer cross-linked clay is expected.

    SIMPLE SEPARATIVE POWER EVALUATING METHOD FOR NITROGEN AND CARBON DIOXIDE OF CERAMIC
    8.
    发明专利
    SIMPLE SEPARATIVE POWER EVALUATING METHOD FOR NITROGEN AND CARBON DIOXIDE OF CERAMIC 失效

    公开(公告)号：JPH0821831A

    公开(公告)日：1996-01-23

    申请号：JP30593293

    申请日：1993-11-10

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： HORIO MASAKAZU ,  SUZUKI KENJI ,  MORI TOSHIAKI

    IPC: G01N30/00 ,  B01D53/02 ,  B01D53/34 ,  B01D53/54 ,  B01D53/62 ,  B01J20/10 ,  B01J20/281 ,  G01N30/88 ,  G01N30/89 ,  G01N30/48

    Abstract: PURPOSE:To simply and quickly evaluate the separative power of nitrogen and carbon dioxide of a ceramic by bringing the mixed gas of nitrogen and carbon dioxide into contact with the ceramic, and obtaining the difference of the retention time between them. CONSTITUTION:When the time from the adsorption to desorption of gas on the surface of a ceramic is defined as retention time, the retention time corresponds to the strength of the adsorption power or desorption power. When the retention time is long, gas is strongly adsorbed on the surface of the ceramic. When the retention time is short, gas is easily desorbed from the surface of the ceramic. The mixed gas of nitrogen and carbon dioxide is filled into the ceramic to be measured, the ceramic is put in a column, the retention time when each gas is desorbed is measured, and the difference is obtained. The separative power of nitrogen and carbon dioxide is evaluated to be excellent when the difference is large.

    METHOD FOR RECOVERING HIGH-TEMPERATURE CARBON DIOXIDE IN WASTE GAS AND APPARATUS THEREFOR
    9.
    发明专利
    METHOD FOR RECOVERING HIGH-TEMPERATURE CARBON DIOXIDE IN WASTE GAS AND APPARATUS THEREFOR 失效

    公开(公告)号：JPH07277718A

    公开(公告)日：1995-10-24

    申请号：JP8803994

    申请日：1994-03-31

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： OZAKI TOSHIHIKO ,  SUZUKI KENJI ,  HORIO MASAKAZU ,  WATAMURA SHINJI ,  MORI TOSHIAKI

    IPC: B01D53/04 ,  B01J20/10 ,  C01B32/50 ,  C01B31/20

    Abstract: PURPOSE:To efficiently separate and recover CO2, discharged by burning petroleum, coal, a gas, etc., in a state of a high concentration and a high temperature before discharging into the air. CONSTITUTION:The method for recovering high-temperature carbon dioxide in a waste gas is to feed a prescribed amount of the waste gas still kept at a high temperature due to combustion into a separating cylinder 3 to which a carrier gas is fed at a constant flow rate at a prescribed time interval, bring the waste gas into contact with a ceramic separating agent, filled in the separating cylinder 3 and having a larger retention time from adsorption of CO2 thereon to the desorption thereof than that of other gases, discharge the gases other than the CO2 by the carrying away with the carrier gas in a housing chamber 6 for the separating agent, then change over a discharge port from the separating cylinder 3 to the side of a bypass flow passage 9 with a changeover valve 7, separate and recover the CO2 in the bypass flow passage 9.

    IMPROVEMENT OF HEAT RESISTANCE OF INTERLAMINAR CROSS-LINKED CLAY
    10.
    发明专利
    IMPROVEMENT OF HEAT RESISTANCE OF INTERLAMINAR CROSS-LINKED CLAY 失效

    公开(公告)号：JPH04193709A

    公开(公告)日：1992-07-13

    申请号：JP32747390

    申请日：1990-11-27

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： SUZUKI KENJI ,  HORIO MASAKAZU ,  MORI TOSHIAKI

    IPC: C04B38/06 ,  B01J21/16 ,  C01B33/26 ,  C01B33/40

    Abstract: PURPOSE:To improve the heat resistance of interlaminar cross-linked clay by controlling the amt. of pillars in the clay. CONSTITUTION:The heat resistance of interlaminar cross-linked clay consisting of silicate layers 1, pillars 2 and pores 3 is improved by controlling the amt. of the pillars in the clay. The clay has higher heat resistance in accordance with the increase of the amt. of the pillars. The heat resistance of the clay is evaluated by stepwise heating of the clay up to 7O0 deg.C max. temp. and measuring of the specific surface area and pore volume at each heating temp. The clay has higher heat resistance when the large specific surface area and pore volume are maintained at a higher temp.

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