-
公开(公告)号：GB2291051B
公开(公告)日：1998-04-22
申请号：GB9512552
申请日：1995-06-20
Applicant: AGENCY IND SCIENCE TECHN
Inventor： HIRAMA TOSHIMASA , HOSODA HIDEO , KITANO KUNIHIRO , SHIMIZU TADAAKI
Abstract: A method of separating carbon dioxide from a carbon dioxide-containing gas is disclosed, wherein the carbon dioxide-containing gas is contacted with a metal oxide to fix the carbon dioxide as a metal carbonate, and the metal carbonate is thermally decomposed into metal oxide by contact with a combustion gas produced by combusting a fuel with a pure oxygen gas. The metal oxide thus produced is recycled to the previous step for fixation of carbon dioxide. A combustion apparatus is constructed to carry out the above method so that the combustion gas produced is treated to separate the carbon dioxide contained therein.
-
公开(公告)号：GB2291051A
公开(公告)日：1996-01-17
申请号：GB9512552
申请日：1995-06-20
Applicant: AGENCY IND SCIENCE TECHN
Inventor： HIRAMA TOSHIMASA , HOSODA HIDEO , KITANO KUNIHIRO , SHIMIZU TADAAKI
Abstract: A method of separating carbon dioxide from a carbon dioxide-containing gas is disclosed, wherein the carbon dioxide-containing gas is contacted with a metal oxide eg CaO or MgO, to fix the carbon dioxide as a metal carbonate, and the metal carbonate is thermally decomposed into metal oxide by contact with a combustion gas produced by combusting a fuel with a pure oxygen gas. The metal oxide is recycled to the previous step for fixation of carbon dioxide. A combustion apparatus is constructed to carry out the above method so that the combustion gas produced is treated to separate the carbon dioxide contained therein.
-
公开(公告)号：JPH0824571A
公开(公告)日：1996-01-30
申请号：JP18289194
申请日：1994-07-12
Applicant: AGENCY IND SCIENCE TECHN
Inventor： HIRAMA TOSHIMASA , HOSODA HIDEO , KITANO KUNIHIRO , SHIMIZU TADAAKI
Abstract: PURPOSE:To separate CO2 in CO2-containing gas in high device efficiency by bringing the CO2-containing gas into contact with metallic oxide to react and form metallic carbonate and thermally decomposing an obtained metallic carbonate by a combustion heat obtained at the time when a fuel is burned with a pure oxygen to convert the carbonate into the metallic oxide. CONSTITUTION:In a CO2 absorption device 1, the CO2-containing gas is brought into contact with the metallic oxide (e.g. CaO) to allow CO2 incorporated in the gas to react with the metallic oxide and to form the metallic carbonate (e.g. CaCO3). And in a metallic carbonate thermal decomposition furnace 2, the fuel (e.g. fine pulverized coal) is burned with the pure oxygen to thermally decompose the metallic carbonate by the combustion heat obtained at that time. Moreover, the metallic carbonate formed in the device 1 is transferred to the thermal decomposition furnace 2 with a piping 6. Then, the metallic oxide formed at the furnace 2 is transferred to the device 1 with the piping 12. On the other hand, the CO2 formed in the furnace 2 is discharged outside the system through a gas discharge pipe 11. This CO2 is not incorporated with gaseous nitrogen.
-
Patent Agency Ranking
公开(公告)号：JPH07332613A
公开(公告)日：1995-12-22
申请号：JP14413794
申请日：1994-06-03
Applicant: AGENCY IND SCIENCE TECHN , SEKITAN RIYOU SOGO CENTER , EBARA CORP
Inventor： HIRAMA TOSHIMASA , HOSODA HIDEO , HOSODA SHUGO , HARADA MICHIAKI
Abstract: PURPOSE:To enable an amount of occurrence of N2O and NOx to be concurrently and substantially reduced by a method wherein fluidizing air is supplied to a first combustion region in a fluidized bed part, secondary air is supplied to a second combustion region ranging from a free board front stage to a middle stage and third air is supplied to a third combustion region ranging from the middle stage of the free board to a rear stage. CONSTITUTION:Main fuel is supplied from a supplying port 2 to a first combustion region in a fluidized bed 15 and an amount of air which is approximately equal to a theoretical amount of combustion air with respect to the main fuel or less than that is supplied as fluidizing air. Additional fuel and an amount of air which is approximately equal to a theoretical combustion air amount with respect to the additional fuel or less than that are supplied from a double-stage combustion burner 4 as secondary air. In addition, the main fuel and an amount of air which is requisitely sufficient for a complete combustion of the additional fuel are supplied as the third air 5 to the third combustion region located from the middle stage 16 of the free board to the rear stage 17. With such an arrangement as above, an amount of occurrence of N2O and NOx can be concurrently and substantially reduced.
-
公开(公告)号：JPH04120192A
公开(公告)日：1992-04-21
申请号：JP24167690
申请日：1990-09-11
Applicant: AGENCY IND SCIENCE TECHN
Inventor： YOSHIDA TADASHI , MAEKAWA WAKINORI , YOSHIDA RYOICHI , KOTANIGAWA TAKESHI , YOKOYAMA SHINICHI , YAMAMOTO MITSUYOSHI , NAGAISHI HIROSHI , FUKUDA TAKASHI , IDOKAWA KIYOSHI , HIRAMA TOSHIMASA
IPC: B01J27/051 , C10G47/02 , C10G47/34
Abstract: PURPOSE:To improve heat efficiency of process and to efficiently improve light oil fraction yield by adding a hydrogen donative solvent to a heavy oil fraction and subjecting the fraction to hydrogenolysis reaction in the presence of a hydrogenating catalyst under a specific condition. CONSTITUTION:A hydrogen donative solvent such as tetralin, dihydroanthracene or dihydropyrene is added to a heavy oil fraction such as petroleum, tar sand bitumen or shale oil and subjected to hydrogenolysis reaction in the presence of a hydrogenating catalyst at 400-460 deg.C (preferably 420-450 deg.C) under 100-300kg/ cm G (preferably 100-200kg/cm G) hydrogen pressure to give a light oil fraction.
-
公开(公告)号：JPS63213795A
公开(公告)日：1988-09-06
申请号：JP4854187
申请日：1987-03-02
Applicant: AGENCY IND SCIENCE TECHN
Inventor： TAKEUCHI HIROSHI , HIRAMA TOSHIMASA , SAYAMA SOGO , AOKI HIDETOSHI
Abstract: PURPOSE:To prevent frosting on a heat transfer surface and reduce pressure loss to improve energy efficiency by a method wherein a heat transfer member is installed inside a heat exchanger and a discharge valve for circulating particles is installed at an interconnecting part to a rising part and the circulating particles separated by a diffuser are circulated again to the rising part. CONSTITUTION:Air to be heat-exchanged is supplied into a rising part 3 through a separator 9 placed at an inflow port 6 and circulating particles 8 are supplied into the part 3 from a discharge valve 12. The circulating particles supplied into the part 3 are rising in the rising part in mixing and heat-exchanging with the air violently under turbulent or high-speed fluidized condition and transferred to a diffuser 5 and then reduced in speed and fall down on the upper part of a moving bed 4. The air is exhausted outside a mainbody from an exhaust port 7, however, the scattering of the particles 8 outside the mainbody is prevented by a separator 9 installed at the port 7. The particles 8 falling on the moving bed 4 move to the side of a downward valve according to the circulation volume exhausted from the valve 12 and transfer heat received from the air to a heat transfer member 10 placed in the moving bed 4.
-
公开(公告)号：JPS6387507A
公开(公告)日：1988-04-18
申请号：JP23301286
申请日：1986-09-29
Applicant: AGENCY IND SCIENCE TECHN
Inventor： HIRAMA TOSHIMASA , TAKEUCHI HIROSHI , CHIBA TADATOSHI
IPC: F23C10/02
Abstract: PURPOSE:To reduce the heat radiation loss of the device and to make a solid particle circulating valve unnecessary by forming the device in a dual tower structure and integrally forming and simplifying the solid particle lifting and lowering parts. CONSTITUTION:When desulfurizing limestone is placed in the bottom part of an inner tower 1 through a raw material supply pipe 12 together with coal, they are fluidized with solid particles from a particle circulating port 2 and burnt. The solid particles at the upper end of the inner tower 1 are ejected through a gas ejection port 3 and fall into the bottom part of an outer tower and make circulation. Ashes are collected in a dust collector 9 through a combustion gas discharge pipe 10, returning to the outer tower 5 through a particle circulating pipe 11 and is stored on a gas disperser 6 together with solid particles. At the bottom part of the outer tower 5 a heat exchanger 7 is provided for holding a concentrated fluidizing state and recovering combustion heat. The waste gas of the dust collector 9 is passed through a heat exchanger 13 and further is removed of its ash parts by a dust collector 14. The solid particle circulating velocities of the inner tower 1 and the outer tower 5 are controlled by the gas hollow tower velocities of the inner and outer towers, that is, and apparent mean flow velocity within the tower and the height of the concentrated fluidized bed.
-
公开(公告)号：JPS61249600A
公开(公告)日：1986-11-06
申请号：JP9170985
申请日：1985-04-27
Applicant: AGENCY IND SCIENCE TECHN
Inventor： MIURA MASAKATSU , DEGUCHI AKIRA , HIRAMA TOSHIMASA , TAKEUCHI HIROSHI , HOSODA HIDEO , SUZUKI SATOSHI
Abstract: PURPOSE:To make the easy sepn. of the oil-component and solid matter in oil-contg. sludge possible by making use of the partial combustion heat of the sludge. CONSTITUTION:The oil storage tank sludge 5 is brought into contact with an oxygen-contg. gas 4 in the fluidized bed of a fluidized bed type thermal cracking furnace 1 to burn partially the sludge 5; at the same time, the oil- component in the sludge 5 is reformed to a low-viscosity oil by thermal cracking. The reformed oil obtd. in the above-mentioned manner is separated in a vapor form from the upper part of the fluidized bed to the outside of the system. The solid matter contained in the sludge 5 is separated from the lower part of the fluidized bed to the outside of the system. As a result, the easy sepn. of the oil-component and solid matter and further moisture in the sludge is made possible and the recovered oil obtd. in this stage has the low viscosity and permits easy transportation with a pump, etc., even without being mixed with a light oil or heavy oil.
-
-
-
-
-
-
-
Search Results
8
records
(took 0.025 seconds)
