公开(公告)号：JP2000274214A

公开(公告)日：2000-10-03

申请号：JP8026699

申请日：1999-03-24

Applicant: AGENCY IND SCIENCE TECHN ,  JAPAN CHEMICAL INNOVATION INST

Inventor： FUJIE MAKOTO ,  SUGATA TAKESHI ,  SAKO TAKESHI ,  KANZAWA CHIYOJI

IPC: B01J3/00 ,  C01B32/50 ,  C10L5/46 ,  C10L5/48 ,  F01K27/02

Abstract: PROBLEM TO BE SOLVED: To enable utilization of the original material such as low quality charcoal, heavy oil, and biomass as a fuel by continuously supplying the fluid fuel including the organic material and the alkali solution to a heat exchanger integrated burner, and burning the organic material underwater at a temperature and a pressure near supercritical state. SOLUTION: Organic material 1 is mixed with water by a slurry adjusting unit 2 so as to adjust the fuel slurry as a fluid fuel. The slurry and the alkali solution 3 are pressurized by each pump 4, 5 so as to be passed through a waste heat recording heat-exchanger 6. Heat from the mixture fluid is exchanged by the heat of the fluid flowed out of a heat exchanger integrated burner 7, and temperature of the mixture fluid becomes 400-700 deg.C. The heated mixture fluid is supplied to a heat exchanger integrated burner 7, and the air 8 as the oxidant gas is compressed by a compressor 9, and passed through the heat exchanger 6 for heating, and the compressed and heated air is supplied to the burner 7. The organic material included in the mixture fluid is burned with the oxygen included in the air, and steam is generated by the combustion heat of the heat exchanger integrated burner 7, and electrical energy is extracted by a power generator 11.

公开(公告)号：JPH02291942A

公开(公告)日：1990-12-03

申请号：JP11270589

申请日：1989-05-01

Applicant: AGENCY IND SCIENCE TECHN

Inventor： NAKAZAWA NOBUAKI ,  SUGATA TAKESHI ,  SAKO TAKESHI ,  SUZUKI MORIO ,  OKUBO TEIJI ,  SATO SHINJI ,  WAKABAYASHI KATSUHIKO

IPC: G01N11/16

Abstract: PURPOSE:To make it possible to measure the coefficient of viscosity simply and accurately by constituting an apparatus with a vibrator, a circuit for grounding a housing, a variable capacitor, dielectric-loss measuring device, and a balance detector. CONSTITUTION:A torsional vibrator 1 is held in a sample fluid cell 3 with housings 2. The inside of the cell 3 is filled with a fluid to be measured. Electrodes which are provided on the surfaces of the vibrator 1 are connected to the measuring bridge terminals of a dielectric-loss measuring device 4 through conductor wires 5. A synthesizer 6 which imparts a frequency input and a bal ance detector 7 which detects the balance of the bridge are connected to the corresponding terminals of the measuring device 4. The housing 2 is grounded to the grounding terminal of the bridge through a conductor wire 8. Thus the effect of the housing 2 in measurement is removed. A zero-position moving variable capacitor 9 which is connected to the vibrator 1 in parallel is prepared. The capacitance of the capacitor 9 is selected in measuring the width of a half value. Therefore, the zero position of the capacitance of the dielectric-loss measuring device corresponding to the capacitance of the capacitor 9 can be arbitrarily selected.

公开(公告)号：JPS63200059A

公开(公告)日：1988-08-18

申请号：JP3370987

申请日：1987-02-17

Applicant: AGENCY IND SCIENCE TECHN

Inventor： SUGATA TAKESHI ,  SATO SHINJI ,  SAKO TAKESHI ,  SAKAKI KEIICHI ,  NAKAZAWA NOBUAKI ,  SHIRATA TOSHIKATSU

IPC: G01N30/02 ,  B01D15/08 ,  C07C51/00 ,  C07C57/12 ,  C07C67/00 ,  C11B9/02 ,  C11C1/08 ,  G01N30/80

Abstract: PURPOSE:To portionwise sample a fractionated component at high purity efficiently and continuously without using an adsorbing column and without receiving the restriction of the number of times of fractionation, by providing a change-over valve between a separation column and a low pressure side and portionwise sampling the fractionated component by the operation of the change-over valve. CONSTITUTION:The first flow channel consisting of lines 9, 10 connects a change-over valve 2 and a separation column 1 and the second flow channel composed of a line 12 connects the change-over valve 2 and the separation column 1 through a minute flow rate control valve 7. The third flow channel consisting of lines 14, 15, 24 connects the change-over valve 2 and a low pressure region through a back pressure control valve 8, and the fourth flow channel consisting of lines 16-18, 20-22, 23 connects the change-over valve 2 and the low pressure region through a portionwise sampling change-over valve 3 and portionwise sampling containers a-c. When a supercritical fluid having a mixture to be separated dissolved therein is introduced into the separation column 1, the supercritical fluid wherein the mixture is fractionated into respective components is allowed to flow out from the separation column 1 in a time series manner. Hereupon, the change-over valves 2, 3 are operated in relation to a fractionated component detector 6 and the connection state of each flow channel is altered and each of the fractionated components is portionwise sampled in each of the portionwise sampling containers a-c.

公开(公告)号：JPH09327678A

公开(公告)日：1997-12-22

申请号：JP14694096

申请日：1996-06-10

Applicant: AGENCY IND SCIENCE TECHN

Inventor： SAKO TAKESHI ,  SATO SHINJI ,  SUGATA TAKESHI ,  OTAKE KATSUTO ,  TSUGUMI MASAYUKI

IPC: A62D3/20 ,  A62D3/38 ,  A62D101/08 ,  A62D101/22 ,  A62D101/26 ,  A62D101/28 ,  B09B3/00 ,  A62D3/00

Abstract: PROBLEM TO BE SOLVED: To make dioxins harmless by an industrially advantageous method wherein inorg. powder contg. dioxins is dispersed into supercritical water held at least at the critical temp. and at least under the critical pressure and dioxins are decomposed under this condition. SOLUTION: Inorg. powder contg. dioxins, water and open air are filled in a reactor and it is heated at 653-873K being at least critical temp. of water, pref. 653-773K. In this case, the reaction pressure is controlled by wt. of water filled in the reactor and 22-40MPa, pref. 25-35MPa is pref. After a specified reaction time passes, in the case where an oxidizing agent is not incorporated, at least 96.5% dioxins in the reactor are decomposed and in the case where such an oxidizing agent as hydrogen peroxide and oxygen gas is incorporated, at least 98.5% dioxins are decomposed. Thereby, dioxins can be made harmless by an industrially advantageous method without necessitating high reaction temp. and complicated reaction control.

公开(公告)号：JPH02274269A

公开(公告)日：1990-11-08

申请号：JP9612089

申请日：1989-04-14

Applicant: AGENCY IND SCIENCE TECHN

Inventor： SUGATA TAKESHI ,  OKUBO TEIJI ,  SATO SHINJI ,  SAKO TAKESHI ,  NAKAZAWA NOBUAKI

IPC: A62D3/00 ,  B01D53/34 ,  B01D53/70

Abstract: PURPOSE:To easily constitute a process of rendering fluorocarbon or fluorocarbon-containing materials harmless and prevent emission of harmful materials out of a system by decomposing the fluorocarbon or fluorocarbon- containing materials inside a high temperature - high pressurized water in a temperature and a pressure (supercritical) condition exceeding the critical temperature and critical pressure. CONSTITUTION:A high temperature - high pressurized water is fed to a reactor together with a fluorocarbon or fluorocarbon-containing material. As the conditions of that time, a temperature exceeding the critical temperature of water, for example, 380 deg.C or more, and a pressure over the critical pressure of water, for example, 300atm or more, are preferred. The feed quantity of fluorocarbon is preferably less than 1/100 by mole ratio to water. When the fluorocarbon is chlorofluoromethane containing no hydrogen, the greater part is hydrolyzed in this reactor, forming carbon dioxide water, and hydrogen halide. The hydrogen halide in the product is neutralized by alkali and made harmless.

公开(公告)号：JPS63112536A

公开(公告)日：1988-05-17

申请号：JP25949586

申请日：1986-10-30

Applicant: AGENCY IND SCIENCE TECHN

Inventor： SAKO TAKESHI ,  YOKOCHI TOSHIHIRO ,  SATO SHINJI ,  SUZUKI OSAMU ,  SHIRATA TOSHIKATSU ,  SUGATA TAKESHI ,  NAKAZAWA NOBUAKI

IPC: C07C57/12 ,  B01D15/08 ,  C07C51/00 ,  C07C51/47 ,  C07C67/00 ,  C07C67/56 ,  C07C69/58 ,  C11C1/08 ,  G01N30/02

Abstract: PURPOSE:To concentrate and purify gamma-linolenic acid, by subjecting a fatty acid mixture from a natural fat or oil or fatty acid lower alkyl ester mixture to supercritical fluid chromatography. CONSTITUTION:A fatty acid mixture obtained by hydrolyzing a natural fat or oil containing gamma-linolenic acid or fatty acid lower alkyl ester prepared by ester interchange with a lower alcohol is directly fractionated or subjected to urea addition treatment and fractionated by chromatography using a supercritical fluid, e.g. carbon dioxide, flon, etc., in a supercritical state, as a mobile phase to collect a gamma-linolenic acid fraction and carry out concentrating and purifying of the gamma-linolenic acid. The mobile phase is inexpensive and nontoxic without requiring vacuum distillation in the final step and deterioration of yield by thermal denaturation of separation products. A short time is sufficient for the treatment.

公开(公告)号：JPH11209317A

公开(公告)日：1999-08-03

申请号：JP940198

申请日：1998-01-21

Applicant: AGENCY IND SCIENCE TECHN ,  SHIN NIPPON AIR TECH CO LTD

Inventor： SAKO TAKESHI ,  KANZAWA CHIYOJI ,  SUGATA TAKESHI ,  OTAKE KATSUTO ,  TSUGUMI MASAYUKI ,  SHUDO HARUHISA

IPC: C08J11/10 ,  C07C27/02 ,  C07C31/20 ,  C07C67/03 ,  C07C67/475 ,  C07C69/82

Abstract: PROBLEM TO BE SOLVED: To provide a method for recovering monomers from polyethylene terephthalate, harmless to human bodies and natural environment, etc., and capable of simply carrying out separation and recovery, etc. of the monomer under industrially advantageous conditions. SOLUTION: This method for recovering monomers from polyethylene terephthalate comprises obtaining diethyl terephthalate and ethylene glycol which are monomers by reacting polyethylene terephthalate with supper critical ethanol.

公开(公告)号：JPH02108682A

公开(公告)日：1990-04-20

申请号：JP25990388

申请日：1988-10-14

Applicant: AGENCY IND SCIENCE TECHN

Inventor： SUGATA TAKESHI ,  NAKAZAWA NOBUAKI ,  OGAWA HIROTSUGU ,  SATO SHINJI ,  SAKO TAKESHI ,  OKUBO TEIJI ,  WAKABAYASHI KATSUHIKO

IPC: C07D307/50 ,  C07B61/00

Abstract: PURPOSE:To efficiently obtain highly concentrated furfural by extracting aqueous solution, etc., containing pentose such as xylose by using acid as catalyst and using supercritical fluid. CONSTITUTION:In a process producing furfural from aqueous solution containing pentose such as xylose or hemicellulose in plant body using acid as catalyst, a fluid having temperature and pressure exceeding critical temperature and critical pressure is made into contact with reacting liquid in reacting vessel and circulated, then furfural is extracted and recovered to outside of the reaction system. Preferably, the supercritical fluid containing furfural is circulated through a filling column having structure refluxing a part of concentrated liquid and the other concentrating column, thus concentration of furfural is enriched.

公开(公告)号：JPS6244170A

公开(公告)日：1987-02-26

申请号：JP18148185

申请日：1985-08-19

Applicant: AGENCY IND SCIENCE TECHN

Inventor： SAKO TAKESHI ,  YOKOCHI TOSHIHIRO ,  SATO SHINJI ,  SUZUKI OSAMU ,  SHIRATA TOSHIKATSU ,  SUGATA TAKESHI ,  NAKAZAWA NOBUAKI

IPC: C12N1/00 ,  C11B1/10 ,  C12N1/14 ,  C12P7/64 ,  C12R1/645

Abstract: PURPOSE:To advantageously extract a valuable component contained in a mold of the genus Mortierella, by pretreating the mold by heating followed by grinding and treating it by supercritical fluid or by supercritical fluid using an alcohol and/or a hydrocarbon. CONSTITUTION:A mold of the genus Mortierella is heated and ground by mechanical force, or ground in an alcohol solvent by mechanical force and the mold is pretreated. In the case, the mold is heated at 150-200 deg.C and the mold is pulverized into . Consequently, approximately 100% neutral lipid in the mold can be extracted ad further separation of the lipid from the solvent can be advantageously carried out at a fixed temperature by operation under reduced pressure, etc.

公开(公告)号：JPH10225632A

公开(公告)日：1998-08-25

申请号：JP11596697

申请日：1997-05-07

Applicant: AGENCY IND SCIENCE TECHN

Inventor： SAKO TAKESHI ,  SATO SHINJI ,  SUGATA TAKESHI ,  OTAKE KATSUTO ,  OKANO MAKOTO

IPC: A62D3/20 ,  A62D3/36 ,  A62D3/38 ,  A62D101/22 ,  B01J3/00 ,  B01J19/00 ,  C07C39/04 ,  A62D3/00

Abstract: PROBLEM TO BE SOLVED: To detoxicate polychlorinated biphenyl by decomposing it with supercritical water alone, supercritical water admixed with alkali or supercritical water admixed with alkali and an oxidizing agent. SOLUTION: About 50-150 weight units of water, based on one weight unit of PCB, 50-150 weight units of water and 1-5 weight units of such an alkali as sodium hydroxide or 50-150 weight units of water, 2-20 weight units of an oxidizing agent such as hydrogen peroxide and 1-5 weight units of an alkali such as sodium hydroxide are filled in a reactor and heated above the critical temp. of water in a heating furnace. The reaction pressure is adjusted in accordance with the weight of water filled in the reactor, and the reaction time is controlled to 5-60min. Oxygen, air, etc., are used as the oxidizing agent as well as hydrogen peroxide. Sodium carbonate is used as the alkali besides sodium hydroxide. Consequently, the high reaction temp. and long reaction time are not needed to make polychlorinated biphenyl harmless without causing the resynthesis of PCB.