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1. 发明专利

JPH08311458A METHOD FOR LIQUEFYING COAL BY USING HIGHLY ACTIVE CATALYST CONTAINING SULFATE 失效
公开(公告)号：JPH08311458A
公开(公告)日：1996-11-26
申请号：JP14133995
申请日：1995-05-17
申请人： NIPPON STEEL CORP , MITSUI SEKITAN EKIKA KK , ASAHI CHEMICAL IND
发明人： ENDO KOHEI , IGUCHI KENJI , HAYASHI SHIGEYOSHI , TAMURA NOBUHIRO , KAI SADA
IPC分类号： B01J27/043 , B01J27/053 , C10G1/06 , C10G1/08
摘要： PURPOSE: To liquefy coal in a high catalytic activity in a high yield of soft oils at a low cost by using iron sulfide containing a sulfate as the catalyst. CONSTITUTION: Coal is liquefied at a higher efficiency by using an iron sulfide catalyst containing 5-30wt.% iron sulfate. The coals used suitably are bituminous coal, subbituminous coal and brown coal. The coal is heated to 300-900 deg.C. The temperature is usually desirably 400-500 deg.C, because the rate of liquefaction is low at low temperatures, and carbides and gases are produced in larger amounts at high temperatures. If a sufficiently hydrogenated medium oil is used, fresh hydrogen is not necessary for the liquefaction. The medium oil is added in an amount of 100-400% based on the coal. It is suitable that the medium oil used is liquefied coal or a product of its hydrogenation. The amount of the catalyst used is suitably 0.5-2% based on the anhydrous ash-free coal. The catalyst used is a product obtained by firing commerically available ferrous sulfate or ferrous sulfate recovered from iron slag and containing a small amount of various metal salts at 250-1,000 deg.C in the presence of sulfur in a fluidized bed oven.

2. 发明专利

JPH1176823A SLURRY CATALYST FOR DECOMPOSING HEAVY HYDROCARBON AND ITS MANUFACTURE 失效
公开(公告)号：JPH1176823A
公开(公告)日：1999-03-23
申请号：JP25261097
申请日：1997-09-03
申请人： ASAHI CHEMICAL IND , NIPPON STEEL CORP , MITSUI SEKITAN EKIKA KK
发明人： KAI SADA , HAYASHI SHIGEYOSHI , SAKURAI MASAAKI , ASO TATSUJI , IGUCHI KENJI
IPC分类号： B01J23/745 , B01J27/043 , C10G1/06 , C10G1/08 , C10G47/06
摘要： PROBLEM TO BE SOLVED: To provide a slurry catalyst and its preparation method wherein an iron compound (a catalytic active constituent) is prevented from growing during reaction, and further high activity is provided in coal liquefaction or heavy oil hydrogenation decomposing reaction. SOLUTION: In oil of 40 to 60 wt.% total amount wherein a mixture of coal and an iron compound catalyst of which d50 (50% particle size of cumulative distribution of volume standard of secondary particle in which primary particle is aggregated) is 20 to 30 μm, is mixed in oil, they are crushed and ground together until an average particle size of the coal becomes 20 μm or under. Thereby, a slurry catalyst for decomposing heavy hydrocarbon wherein the decomposed crushed iron compound is stuck in a thin film state onto a surface of the coal finely dispersed in the oil, can be manufactured.

3. 发明专利

JPH05103989A PRODUCTION OF HIGH-ACTIVITY CATALYST FOR COAL LIQUEFACTION 失效
公开(公告)号：JPH05103989A
公开(公告)日：1993-04-27
申请号：JP26404491
申请日：1991-10-11
申请人： ASAHI CHEMICAL IND
发明人： HAYASHI SHIGEYOSHI , TAMURA NOBUHIRO
IPC分类号： B01J27/043 , C10G1/06
摘要： PURPOSE:To easily separate solid and liq. and to produce the catalyst excellent in hydrogenation efficiency by dipping coal powder in an aq. acidic soln. contg. metallic ion, adding an aq. alkali contg. sulfur ion to bring about a reaction to form the metal sulfide in the coal pore and on the surface of the particle, desalting and concentrating the slurry and separating the product. CONSTITUTION:Coal powder is dipped in an aq. acidic soln. contg. one or two kinds of metallic ions (e.g. iron ion), an aq. alkali contg. sulfur ion is added to bring about a reaction, the slurry is desalted and concentrated, and the reaction product is separated. Consequently, the reaction and solid-liq. separation are facilitated, the entire process is simplified, and the coal impregnated with the catalyst is extremely well separated from liq. Besides, the formed iron sulfide is highly dispersed in coal, the affinity is excellent, and the catalyst highly effective in hydrogenation is produced.

4. 发明专利

JPH0598265A LIQUEFACTION OF COAL BY USING COAL IMPREGNATED WITH CATALYST 失效
公开(公告)号：JPH0598265A
公开(公告)日：1993-04-20
申请号：JP26404391
申请日：1991-10-11
申请人： ASAHI CHEMICAL IND
发明人： HAYASHI SHIGEYOSHI , TAMURA NOBUHIRO
IPC分类号： B01J27/053 , C10G1/06 , C10G1/08
摘要： PURPOSE:To make it possible to reduce the amount of a catalyst used and to increase the yield of low-boiling fractions by using coal impregnated with a catalyst containing a metal sulfate in liquefying coal by reacting coal slurried in a hydrocarbon oil at high temperature and high pressure with hydrogen. CONSTITUTION:20-50wt.% coal powder (e.g. Pacific coal which can pass a 100-mesh screen) is thrown into a 0.001-0.06mol aqueous solution of a sulfate containing metallic ions (e.g. ferrous sulfate), and the resulting mixture is agitated and thoroughly deaerated. After the coal powder is impregnated for at least one hour, it is dried with a spray dryer. The amount of the catalyst used in coal liquefaction is 0.01-10wt.% (in terms of Fe, dry ash-free base). Although it is not always necessary to add an oil (e.g. crystal-free anthracene oil) as a medium, the catalyst is added in an amount of generally 100-400wt.% based on the coal. The temperature of coal during the liquefaction is 300-900 deg.C. Although hydrogen need not be added in the liquefaction if a fully hydrogenated oil is used as a medium, it is generally suitable to use highly pure hydrogen. The pressure of hydrogen in the reaction is 10kg/cm or above.

5. 发明专利

JPH11322342A PRODUCTION OF FERROUS SULFATE MONOHYDRATE 失效
公开(公告)号：JPH11322342A
公开(公告)日：1999-11-24
申请号：JP15079798
申请日：1998-05-15
申请人： ASAHI CHEMICAL IND
发明人： HAYASHI SHIGEYOSHI , KAI SADA , SAKURAI MASAAKI
IPC分类号： C01G49/14 , B01J27/053
摘要： PROBLEM TO BE SOLVED: To provide a production process for ferrous sulfate monohydrate from iron ore and sulfuric acid that is suitable as a catalyst for hydrogenolysis of heavy hydrocarbon for such as coal liquefaction and hydrogenolysis of heavy oil, or as a starting substance for catalysts. SOLUTION: This process comprises the first step to treat iron ore with 70 wt.% or higher sulfuric acid at a temperature of

6. 发明专利

JPS53113287A REGENERATION METHOD OF ACTIVE CARBON 失效
公开(公告)号：JPS53113287A
公开(公告)日：1978-10-03
申请号：JP2762377
申请日：1977-03-15
申请人： ASAHI CHEMICAL IND
发明人： HAYASHI SHIGEYOSHI , TAKAGI HITOSHI , TAGASHIRA YOSHIAKI
IPC分类号： B01J20/34 , B01J27/02 , B01J27/24 , B01J38/70 , C01B31/08
摘要： PURPOSE:Eo enhance recovery rate of adsorption property of active carbon to be regenerated by reducing burning loss in a treatment under a low temperature and pressure through heating thereof in a wet oxidation treatment and with the presence of mineral acid.

7. 发明专利

JPS52118849A PROCESS FOR PURIFYING POLLUTED WATER 失效
公开(公告)号：JPS52118849A
公开(公告)日：1977-10-05
申请号：JP3465676
申请日：1976-03-29
申请人： ASAHI CHEMICAL IND
发明人： TAGASHIRA YOSHIAKI , TAKAGI HITOSHI , HAYASHI SHIGEYOSHI
IPC分类号： B01D15/00 , B01D15/02 , B01J20/34 , C02F1/28
摘要： PURPOSE:To accomplish advanced treatment of polluted water through fluidization of polluted water and active carbon along a tilted guide plate keeping contact with each other while recirculating used active carbon after activation in the presence of copper ion and the like.

8. 发明专利

JPS5220665A PURIFICATION METHOD OF WASTE WATER USING ACTIVE CARBON 失效
公开(公告)号：JPS5220665A
公开(公告)日：1977-02-16
申请号：JP9736875
申请日：1975-08-11
申请人： ASAHI CHEMICAL IND
发明人： TAGASHIRA YOSHIAKI , TAKAGI HITOSHI , HAYASHI SHIGEYOSHI
IPC分类号： C02F1/28 , B01D15/00 , B01D15/02 , B01D21/02 , B01D35/00
摘要： PURPOSE:Purification method of waste water using active carbon which is easy to operate and enables adsorption and separation of the used carbon effectively.

9. 发明专利

JPH0598269A PREVENTION OF BLOCKAGE OF SLURRY PREHEATER 失效
公开(公告)号：JPH0598269A
公开(公告)日：1993-04-20
申请号：JP25921391
申请日：1991-10-07
申请人： ASAHI CHEMICAL IND
发明人： HAYASHI SHIGEYOSHI , TAMURA NOBUHIRO
IPC分类号： C10G1/06 , C10G1/08
摘要： PURPOSE:To prevent the blockage of a slurry preheater by using a pre-sulfided metal oxide as a catalyst for a coal liquefaction reaction. CONSTITUTION:A metal oxide (e.g. iron ore) as a catalyst, an oil (e.g. crystal- free anthracene oil) as a medium and a promoter (e.g. powdered sulfur) are fed to a preparation tank and subjected to pre-sulfidation. The promoter sulfur is used in an amount to give an atomic ratio to the iron atoms of the catalyst of 0.2-1. The presulfidation is performed for at least 15min at 50-500 deg.C in a hydrogen stream. After the presulfidation, powdered coal and powdered sulfur are mixed into the mixture to form a slurry. The coal (Pacific coal which can pass a 100-mesh screen) is used in a concentration of 30-50% and the catalyst is used in an amount to give an Fe/DAF coal weight ratio of 0.02-0.03 in the presulfidation. The promoter sulfur in the liquefaction is used in an amount to give an S/Fe atomic ratio of 0.02-3. The liquefaction is performed for 30-90min at 420-460 deg.C under a reaction pressure of 170-200kg/cm in a hydrogen stream. According to this process, the liquefier can be operated continuously for a long time without blocking the slurry preheater.

10. 发明专利

JPS52116644A METHOD OF PURIFYING PLANT DRAIN WATER INCLUDING REACTIVE DYE 失效
公开(公告)号：JPS52116644A
公开(公告)日：1977-09-30
申请号：JP3245076
申请日：1976-03-26
申请人： ASAHI CHEMICAL IND
发明人： TAGASHIRA YOSHIAKI , TAKAGI HITOSHI , HAYASHI SHIGEYOSHI
IPC分类号： B01D15/00 , C02F1/28
摘要： PURPOSE:To provide a method of combining reducing and wet oxidizing processes by efficiently regenerating activated charcoal and reducing the using amount of the charcoal in order to decolor and purify the waste water including reactive dye by activated charcoal absorption treatment.

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