Patents Assigned to K. E. M. Corporation
-
Patent number: 8556998Abstract: A method for dewatering a water-containing combustible solid excluding coal, comprising heating, in a sealed vessel, the water-containing combustible solid at a temperature of 100° C. to 300° C. under a pressure not less than a saturated steam pressure at said heating temperature, while applying a shearing force of 0.01 MPa to 20 MPa to said water-containing combustible solid. The method allows the production of a slurry in water which contains the water separated from the water-containing combustible solid and a combustible solid from which the water is removed, has a suitable viscosity and water content, and can be subjected to spray combustion, at low costs.Type: GrantFiled: September 16, 2004Date of Patent: October 15, 2013Assignees: K.E.M. CorporationInventor: Yukuo Katayama
-
Patent number: 8557004Abstract: A method for dewatering water-containing coal which includes heating the water-containing coal at a temperature of 100 to 350° C. under a pressure not less than a saturated steam pressure at the temperature for the heating, while applying a shearing force of 0.01 to 20 MPa to the coal, in a sealed vessel. The method is novel and allows the production of dewatered coal which is inhibited from reabsorbing water after dewatering and is also inhibited from absorbing oxygen after dewatering.Type: GrantFiled: July 16, 2004Date of Patent: October 15, 2013Assignees: K.E.M. CorporationInventor: Yukuo Katayama
-
Publication number: 20110129890Abstract: A method for converting a material comprising lignocellulose or cellulose into a substance convertible with yeast into ethyl alcohol, wherein a mixture comprising 1 part by weight of the material and 0.5 to 5 parts by weight of water is stirred at a temperature of 150 to 270 degrees C. in a vessel closed in terms of pressure in conditions of providing a high shearing force to be pulverized to an average of maximum dimensions of 1 to 20 micrometers, whereby the material is degraded and at least 15% by weight of the cellulose in the material is converted into a substance convertible into ethyl alcohol. It is possible to prepare saccharides for alcohol fermentation from lignocellulose or cellulose by using this method.Type: ApplicationFiled: July 30, 2008Publication date: June 2, 2011Applicant: K.E.M. CORPORATIONInventor: Yukuo Katayama
-
Publication number: 20070256353Abstract: A method for dewatering a water-containing combustible solid excluding coal, comprising heating, in a sealed vessel, the water-containing combustible solid at a temperature of 100° C. to 300° C. under a pressure not less than a saturated steam pressure at said heating temperature, while applying a shearing force of 0.01 MPa to 20 MPa to said water-containing combustible solid. The method allows the production of a slurry in water which contains the water separated from the water-containing combustible solid and a combustible solid from which the water is removed, has a suitable viscosity and water content, and can be subjected to spray combustion, at low costs.Type: ApplicationFiled: September 16, 2004Publication date: November 8, 2007Applicants: YUKUO KATAYAMA, K.E.M. CORPORATIONInventor: Yukuo Katayama
-
Patent number: 7270689Abstract: A reformer for reacting a raw material gas to be reformed, with an oxidizing agent gas and a reforming agent gas in the presence of an oxidation catalyst and a reforming catalyst to obtain a hydrogen-containing gas, including: a set of catalyst layers consisting of an oxidation catalyst layer and a reforming catalyst layer, and two or more inlets for feeding the oxidizing agent gas to the oxidation catalyst and/or the reforming catalyst in plural stages. The reformer can produce a hydrogen-containing gas without forming a combustion region of a temperature of as high as one thousand and several hundreds centigrade and can be manufactured at a low cost.Type: GrantFiled: July 14, 2004Date of Patent: September 18, 2007Assignees: Toyo Engineering Corporation, K. E. M. CorporationInventors: Hidetsugu Fujii, Fumitake Watanabe, Katsuya Uehara, Yukuo Katayama
-
Patent number: 6599494Abstract: A process is provided for the preparation of artificial zeolite comprising the steps of (a) mixing x kilograms of incineration ash or any other aluminosilicate-containing substance with y liters of an aqueous solution of alkali metalhydroxide having a concentration of 1 N or higher in a proportion, y/x, of from about 0.1 to about 1.5 (liter/kg) to prepare a slurry, and (b) heating the slurry to cause a zeolite forming reaction. Water is continuously or intermittently removed by evaporation so that a decrease in a concentration of alkali which would otherwise naturally occur during the reaction is at least suppressed to thereby facilitate the reaction.Type: GrantFiled: March 21, 2002Date of Patent: July 29, 2003Assignee: K.E.M. CorporationInventor: Yukuo Katayama