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1. 发明专利

JPH10237457A METHOD FOR CONVERTING COAL WITH SUPERCRITICAL WATER 失效
公开(公告)号：JPH10237457A
公开(公告)日：1998-09-08
申请号：JP4335397
申请日：1997-02-27
申请人： MITSUBISHI MATERIALS CORP
发明人： ARAI KUNIO , AJIRI MASAFUMI , TANAKA AKIRA , HASEGAWA SHINICHI , NISHIMURA KENJI
IPC分类号： C10G1/00 , C10G1/06
摘要： PROBLEM TO BE SOLVED: To provide a method for converting coal which comprises converting coal into a more volatilizable product and liquefying it by using inexpensive water as the solvent and using active hydrogen generated by the decomposition of cellulosic biomass and by which a heretofore necessary pre-drying treatment can be dispensed with to simplify the process, and the reaction time is very short, the efficiency of conversion is high and the production cost is low as compared with prior art. SOLUTION: The coal pulverized in a pretreatment step 11 is mixed with water and disintegrated or ground cellulosic biomass to prepare a coal slurry of a concentration of 5-60wt.%. In the coal liquefaction step 12, the slurry is kept in a supercritical state to effect concurrently the decomposition of the cellulosic biomass, the hydrolysis of the coal, the heat decomposition of the coal and the reaction of the coal with the active hydrogen generated by the decomposition of cellulosic biomass and to thereby effect the conversion of the coal into a more volatilizable product and its liquefaction. In a fractionation step 13, the supercritical water containing the oil produced in step 2 is reduced in pressure and cooled in stages to fractionate the formed oil.

2. 发明专利

JPH10237459A PROCESS FOR CONVERTING COAL 失效
公开(公告)号：JPH10237459A
公开(公告)日：1998-09-08
申请号：JP4335197
申请日：1997-02-27
申请人： MITSUBISHI MATERIALS CORP
发明人： ARAI KUNIO , AJIRI MASAFUMI , NISHIMURA KENJI , KAWASAKI HAJIME
IPC分类号： C10J3/46 , C10G1/06 , C10L1/32
摘要： PROBLEM TO BE SOLVED: To provide a process by which coal can be converted into a more volatilizable component, this component can be liquefied by using inexpensive water as the solvent and using active hydrogen which is one generated inside the process and is not one generated outside the process, the residue left after the liquefaction step can be utilized to generate active hydrogen, and by which the heretofore necessary predrying step can be dispensed with to realize the simplification of the process and reduction in production cost. SOLUTION: The coal pulverized in a pretreatment step 11 is mixed with coal and water to prepare a coal slurry desirably having a concentration of 5-60wt.%. The slurry is kept in a supercritical state to concurrently effect the heat decomposition of the coal and the reaction of unreacted coal with active hydrogen to thereby effect the conversion of coal into a more volatilizable component and the liquefaction of the component. In a fractionation step 13, the supercritical water containing the oil produced in the liquefaction step 12 is subjected to pressure reduction and cooling in stages, and the formed oil is fractionated.

3. 发明专利

JPH10237458A APPARATUS FOR CONTINUOUS CONVERSION OF COAL 失效
公开(公告)号：JPH10237458A
公开(公告)日：1998-09-08
申请号：JP4335497
申请日：1997-02-27
申请人： MITSUBISHI MATERIALS CORP
发明人： ARAI KUNIO , AJIRI MASAFUMI , TANAKA AKIRA , HASEGAWA SHINICHI , NISHIMURA KENJI , KAWASAKI HAJIME
IPC分类号： C10G1/00 , C10G1/06 , C10G1/08
摘要： PROBLEM TO BE SOLVED: To provide an apparatus by which coal can be continuously converted into a more volatilizable component, this component can be liquefied, the product of liquefaction can be continuously fractionated into a heavy oil, a middle oil and a light oil, and the residue left after the liquefaction of coal can be utilized to generate active hydrogen and by which the reaction time is very short, the efficiency of conversion is high and the conversion cost is low as compared with prior art. SOLUTION: This apparatus consists of a fluidized bed reaction tower 10 in which a fluidizing medium formed so as to be kept in a supercritical state and based on an inside iron oxide is fed with carbon dioxide being a fluidizing gas together with supercritical water. Pulverized coal is fed into the medium to convert the coal into a more volatilizable component and this component is converted into an oil and a fractionation apparatus 20 whereby the supercritical water containing the oil formed in the tower 19 is reduced in pressure in stages and cooled to fractionate the formed oil.

4. 发明专利

JPH09315822A METHOD FOR RECOVER PLATINUM-GROUP ELEMENT OXIDE 失效
公开(公告)号：JPH09315822A
公开(公告)日：1997-12-09
申请号：JP13300096
申请日：1996-05-28
申请人： MITSUBISHI MATERIALS CORP
发明人： ARAI KUNIO , AJIRI MASAFUMI , KAWASAKI HAJIME , NISHIMURA KENJI , HASEGAWA SHINICHI
IPC分类号： G21F9/06 , C01G55/00 , C22B11/00
摘要： PROBLEM TO BE SOLVED: To separate plural kinds of platinum-group elements from one another with a simple treating stage without using an additive. SOLUTION: An aq. metal slat soln. is treated at >=200 deg.C and >=160kg/cm pressure to decompose the metal salt, and the metal oxide is recovered. The aq. metal salt soln. contains plural kinds of platinum-group elements, the temp. or pressure or both are changed in stages to deposit each of the platinum-group element oxides, and the metal oxides are recovered. An oxide consisting essentially of Pd is deposited at 300 deg.C and 300kg/cm pressure and recovered. An oxide consisting essentially of Rh is deposited at >=350 deg.C and 300kg/cm pressure and recovered.

5. 发明专利

JPH10251655A CONTINUOUS CONVERSION METHOD FOR COAL WITH SUPERCRITICAL WATER 失效
公开(公告)号：JPH10251655A
公开(公告)日：1998-09-22
申请号：JP6082397
申请日：1997-03-14
申请人： MITSUBISHI MATERIALS CORP
发明人： ARAI KUNIO , AJIRI MASAFUMI , TANAKA AKIRA , HASEGAWA SHINICHI , NISHIMURA KENJI , FU KENJIYUN
IPC分类号： C10G1/00 , C10G1/06
摘要： PROBLEM TO BE SOLVED: To provide a continuous conversion method for coal whereby coal is continuously liquefied while using water, which is cheap, as the solvent and using active hydrogen generated in the decomposition of cellulosic biomass or formic acid; the treatment before drying, conventionally required, can be dispensed with, simplifying the process; and a very short reaction time, a high conversion efficiency, and a low production cost are achieved in comparison with a conventional process without allowing a heavy oil to stay. SOLUTION: A coal slurry 11 prepd. by mixing pulverized coal, water, and crushed or ground cellulosic biomass or formic acid is stored in an slurry tank 10. The slurry supplied from the tank 10 is heated with a heater 14 and then subjected to a supercritical state in a reactor 15 to liquefy coal in the slurry, thus giving an oil. The oil generated in the reactor 15 is supplied to an extractor 16 and extracted with supercritical water. The supercritical water contg. the oil extracted in the extractor 16 is depressurized and cooled step by step with a fractionation apparatus 20 to fractionate the oil.

6. 发明专利

JPH10237456A METHOD FOR CONVERTING COAL WITH SUPERCRITICAL WATER 失效
公开(公告)号：JPH10237456A
公开(公告)日：1998-09-08
申请号：JP4335297
申请日：1997-02-27
申请人： MITSUBISHI MATERIALS CORP
发明人： ARAI KUNIO , AJIRI MASAFUMI , TANAKA AKIRA , HASEGAWA SHINICHI , NISHIMURA KENJI
IPC分类号： C10G1/00 , C10G1/06
摘要： PROBLEM TO BE SOLVED: To provide a method for converting coal which comprises converting coal into a more volatilizable product and liquefying it by using inexpensive water as the solvent and using active hydrogen generated by the decomposition of formic acid and by which a heretofore necessary pre-drying treatment can be dispersed with to simplify the process, and the reaction time is very short, the efficiency of conversion is high and the production cost is low as compared with prior art. SOLUTION: The coal pulverized in a pretreatment step 11 is mixed with water and formic acid to prepare a coal slurry of a concentration of 5-60wt.%. In the coal liquefaction step 12, the slurry is kept in a supercritical state to effect concurrently the decomposition of the formic acid, the hydrolysis of the coal, the heat decomposition of the coal and the reaction of the coal with the active hydrogen generated by the decomposition of forming acid and to thereby effect the conversion of the coal into a more volatilizable product and its liquefaction. In a fractionation step 13, the supercritical water containing the oil produced in step 2 is reduced in pressure and cooled in stages to fractionate the formed oil.

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