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1. 发明专利

JP2004035748A Slag discharge apparatus in gasification furnace of waste plastic and method for discharging slag by using the same 有权
公开(公告)号：JP2004035748A
公开(公告)日：2004-02-05
申请号：JP2002195627
申请日：2002-07-04
申请人： Daicel Chem Ind Ltd , Nippon Steel Corp , ダイセル化学工業株式会社 , 新日本製鐵株式会社
发明人： KOTSURU HIROYUKI , KAWAMURA TAKAFUMI , SANPEI HITOSHI , KAWAMURA YASUSHI , MOTOCHI TOSHIFUMI , KOSUGE KATSUSHI , HIGUCHI TOSHIYA , SHIROMIZU WATARU , MORITA KENTARO
IPC分类号： C08J11/12 , C10J3/00 , C10J3/46 , C10J3/52
CPC分类号： Y02W30/703
摘要： PROBLEM TO BE SOLVED: To provide a method and an apparatus for discharging slag produced in a method for producing a fuel gas by gasifying a waste plastic. SOLUTION: The aggregation of the waste plastic on a water surface of a cooling water tank by which discharge of melted slag from the waste plastic is hindered is prevented by the following methods. (1) Spraying water in an upper space on water surface, (2) vibrating the water surface by blowing gas from the lower part of the water tank, (3) vibrating the water surface by opening a slag discharge lock hopper in a state unfilled with water and (4) preventing aggregation of unreacted plastic particles and promoting smooth discharge by preparing water current from the central part of the water tank into the direction of a wall surface. COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2004035750A Method and apparatus for cooling gas for gasifying waste plastic 有权
公开(公告)号：JP2004035750A
公开(公告)日：2004-02-05
申请号：JP2002195630
申请日：2002-07-04
申请人： Daicel Chem Ind Ltd , Nippon Steel Corp , ダイセル化学工業株式会社 , 新日本製鐵株式会社
发明人： SANPEI HITOSHI , KOTSURU HIROYUKI , KAWAMURA TAKAFUMI , UENOYAMA KIYOSHI , MOTOCHI TOSHIFUMI , KOSUGE KATSUSHI , HIGUCHI TOSHIYA , SHIROMIZU WATARU , MORITA KENTARO
IPC分类号： C08J11/12 , C10J3/00 , F27D17/00
CPC分类号： Y02P10/283 , Y02P20/124 , Y02W30/703
摘要： PROBLEM TO BE SOLVED: To prevent attachment of ash contained in gas to the interior of a heat recovering apparatus and deposition of unreacted particles to the interior of the heat recovering apparatus. SOLUTION: A gas cooling apparatus (a quenching furnace) for cooling the gas by spraying water is provided in the upper part of a gasification furnace and water spraying is carried out from the lower part of the quenching furnace and an outlet gas of the quenching furnace is cooled to ≤ 900°C to prevent attachment of the ash to the heat recovering apparatus. When a water spraying nozzle is formed as a two fluids nozzle, a gas produced is recycled to a spraying gas so that a product gas is not diluted with a gas such as nitrogen. The upward gas flow rate of the quenching furnace is kept to ≤ 3 m/s. Thereby, unreacted particles having a fast precipitation rate is retained to prevent the unreacted particles from entering the heat-recovering apparatus. COPYRIGHT: (C)2004,JPO

3. 发明专利

JP2004035749A Method for gasifying waste plastic 有权
公开(公告)号：JP2004035749A
公开(公告)日：2004-02-05
申请号：JP2002195628
申请日：2002-07-04
申请人： Daicel Chem Ind Ltd , Nippon Steel Corp , ダイセル化学工業株式会社 , 新日本製鐵株式会社
发明人： KOTSURU HIROYUKI , KAWAMURA TAKAFUMI , SANPEI HITOSHI , UENOYAMA KIYOSHI , MOTOCHI TOSHIFUMI , KOSUGE KATSUSHI , HIGUCHI TOSHIYA , SHIROMIZU WATARU , MORITA KENTARO
IPC分类号： F23G7/12 , C08J11/14 , C10J3/00
CPC分类号： Y02W30/704
摘要： PROBLEM TO BE SOLVED: To decrease the amount of oxygen used by carrying out gasification of waste plastic particles at a low temperature. SOLUTION: A method for gasifying a waste plastic comprises partially oxidizing plastic particles containing chlorine with oxygen and steam. In the gasification method, a partial oxidation temperature is ≥1,100 °C and a gas retention time in a gasification furnace is ≥2 sec and generated gas is thermally recovered. COPYRIGHT: (C)2004,JPO

4. 发明专利

JP2004034534A Method and apparatus for pneumatic transportation of waste plastic 有权
公开(公告)号：JP2004034534A
公开(公告)日：2004-02-05
申请号：JP2002195629
申请日：2002-07-04
申请人： Daicel Chem Ind Ltd , Nippon Steel Corp , ダイセル化学工業株式会社 , 新日本製鐵株式会社
发明人： KOTSURU HIROYUKI , KAWAMURA TAKAFUMI , SANPEI HITOSHI , KAWAMURA YASUSHI , MOTOCHI TOSHIFUMI , KOSUGE KATSUSHI , HIGUCHI TOSHIYA , SHIROMIZU WATARU , MORITA KENTARO
IPC分类号： B65G53/04 , B29B17/00 , C10J3/00
CPC分类号： Y02W30/62
摘要： PROBLEM TO BE SOLVED: To stably charge waste plastic particles into a waste plastic gasifying furnace to stabilize gasifying operation. SOLUTION: Coarse particles, a cotton like material and fluff contained in the waste plastics are removed to stabilize the flow of the particles in a hopper or supply tubing. A stirring blade is fitted to the supplying hopper to prevent bridging of particles. The stirring blades can be operated intermittently to prevent mechanical breakdown of the waste plastic particles. COPYRIGHT: (C)2004,JPO

5. 发明专利

JPH07102264A EQUIPMENT FOR PRODUCING OIL FROM WASTE PLASTIC 失效
公开(公告)号：JPH07102264A
公开(公告)日：1995-04-18
申请号：JP24542593
申请日：1993-09-30
申请人： NIPPON STEEL CORP , NITTETSU PLANT DESIGNING CORP
发明人： KOBAYASHI ATSUSHI , MIKATA NOBUYUKI , TAKEUCHI TAKAHARU , SHIROMIZU WATARU
IPC分类号： B09B3/00 , C08J11/12 , C10G1/10
摘要： PURPOSE:To reduce the cost of installations and obtain a high-quality product, by providing equipment for forming an oil from waste plastics with a plurality of raw material mixing tanks before the step of thermal decomposition to mix the raw material with a high-temperature decomposition oil by stirring and to release and remove hydrogen chloride. CONSTITUTION:Preceding the installations for processing waste plastics to form an oil, i.e., a tank 3 for thermally decomposing plastics by heating to about 400-450 deg.C and a tank 4 on the downstream side for the catalytic decomposition of the thermal decomposition gas, at least two raw material mixing tanks 2 having a means of agitation and circulating a melt are installed. In the mixing tanks, alternately supplied waste plastics and high-temperature thermal decomposition oil sent from the thermal decomposition tank are mixed by agitation or circulation and, when PVC is contained, kept at about 250-350 deg.C for at least about 3 to 5 hr to completely release hydrogen chloride contained in the raw material. The discharged gas is sent to a water washing tower 8 to make it harmless. This equipment requires no high-cost corrosion-resistant material and gives a high-quality product oil free from hydrogen chloride through a continuous operation.

6. 发明专利

JPH11246866A PRODUCTION OF AUXILIARY BINDER FOR COAL TO BE CHARGED INTO COKE OVEN 失效
公开(公告)号：JPH11246866A
公开(公告)日：1999-09-14
申请号：JP4944698
申请日：1998-03-02
申请人： NIPPON STEEL CORP , NITTETSU PLANT DESIGNING CORP
发明人： ARAKI TAKAYUKI , TANAKA KAZUNARI , NAKAMURA MASAAKI , SHIROMIZU WATARU , MIYATA TETSUAKI , KANZAKI HIDENOBU
IPC分类号： C10B57/06 , C10C1/04 , C10L9/10 , C10L10/14
摘要： PROBLEM TO BE SOLVED: To provide a method for producing an auxiliary binder for stock coal to be charged into a coke oven, friendly to environments because of its low content of low-boiling hydrocarbons and easily mixed with the stock coal because of its low viscosity. SOLUTION: This method produces an auxiliary binder for stock coal to be charged into a coke oven, little susceptible to thermal polymerization, by equilibrium flash distillation, where coal tar as a by-product of coke production is charged into a flash distillation tower 4 provided with upper and lower chambers for 2-stage equilibrium flash distillation, and the coal tar stream charged into the distillation tower top and the other stream charged into the bottom of the upper chamber are heated, the sensible heat of the coal tar streams being used as the latent heat of vaporization by which lower-boiling compounds are distilled off to be separated. At the same time, steam is injected into the bottom of the distillation tower 4, while keeping a vacuum in the tower, to distill off and separate lower-boiling compounds from the coal tar streams at lower temperature.

7. 发明专利

JPH0770566A THERMAL DECOMPOSITION HEATING FURNACE FOR PLASTICS 失效
公开(公告)号：JPH0770566A
公开(公告)日：1995-03-14
申请号：JP16300293
申请日：1993-06-30
申请人： NIPPON STEEL CORP , NITTETSU PLANT DESIGNING CORP
发明人： MIKATA NOBUYUKI , WATARI SEIJI , TANAKA MIZUHO , SHIROMIZU WATARU
IPC分类号： B09B3/00 , B29B17/00 , B29B17/04 , C08J11/04 , C10G1/10
摘要： PURPOSE:To provide a thermal decomposition heating furnace for plastics which can be long run stably without causing caulking in heating tubes for heating a hydrocarbon oil to 360 deg.C or higher. CONSTITUTION:The furnace has an L-shaped structure comprising a horizontal combustion chamber 13 equipped with a heating burner 11 at the end and a furnace body 14 rising vertically from the combustion chamber 13 and has a plurality of refractory barrier posts 15 installed near at the center of the combustion chamber 13, a group of heating tubes 4 installed in the body 14, and an exhaust gas duct 16 which leads an exhaust gas sucked from the upper side of the body 14 to near the burner 11 of the combustion chamber 13 and extends from the upper section of the body 14 to the site near the burner 11 of the combustion chamber 13.

8. 发明专利

JPS6199612A Gas recirculating device in direct reduction apparatus for iron oxide 失效
标题翻译：用于氧化铁的直接还原装置中的气体再循环装置
公开(公告)号：JPS6199612A
公开(公告)日：1986-05-17
申请号：JP22038084
申请日：1984-10-22
申请人： Nippon Steel Corp , Nittetsu Plant Designing Corp
发明人： SHIBAMURA KENTARO , UENOYAMA KIYOSHI , KAMIMURA AKIRA , SHIROMIZU WATARU
IPC分类号： C21B13/02
CPC分类号： C21B13/02 , C21B2100/22 , C21B2100/282 , C21B2100/42 , C21B2100/44 , C21B2100/64
摘要： PURPOSE:To minimize a process flow change by separating the waste gas to be introduced into a reducing gas recirculating system to two systems,introducing the system having the higher reduction power to the lower part of a reducing zone and introducing the system having the lower reduction power to the intermediate part of the reducing zone. CONSTITUTION:The waste gas taken out of the top of the vertical reduction furnace 1 is subjected to cooling, dust removal and dehumidification by a cooling and scrubbing device 5 and is increased in pressure by a booster 6 through a piping 20. About 20% of the waste gas passing through the piping 20 is used as fuel for a reducing gas generator 4. About 70% of the gas increased in pressure is fed on an acidic gas removing device 7 where CO2, H2S, etc. are removed from the gas. The gas increased in the reduction power is heated up to the required temp. by a gas heater 8 and enters a piping 21 from which the gas is joined with the reducing gas generated in the generator 4 and is blown through a main reducing gas inlet 10 into the furnace 1. About 30% of the gas increased in pressure is heated by the heater 8 and is made into the preliminary reducing gas which is blown through a preliminary reducing gas inlet 9 into the furnace 1.
摘要翻译：目的：通过将要引入还原气体循环系统的废气分离到两个系统来最小化工艺流程变化，将具有较高还原能力的系统引入到还原区的下部，并引入具有较低还原剂的系统电源到还原区的中间部分。构成：从立式还原炉1的顶部取出的废气经过冷却和洗涤装置5进行冷却，除尘和除湿，并通过管道20由增压器6增加压力。约20％通过管路20的废气被用作还原气体发生器4的燃料。大约70％的压力增加的气体被供给到从气体中除去CO 2，H 2 S等的酸性气体去除装置7。降低功率的气体增加到所需温度。通过气体加热器8进入气体与发生器4中产生的还原气体接合的管道21，并通过主还原气体入口10吹入炉子1中。压力增加的约30％的气体是通过加热器8加热，并被制成预还原气体，该预还原气体通过预还原气体入口9吹入炉1。

9. 发明专利

JPS60121398A HYDROGEN STORAGE CONTAINER USING MIXED HYDROGEN OCCLUDING ALLOY 失效
公开(公告)号：JPS60121398A
公开(公告)日：1985-06-28
申请号：JP22544783
申请日：1983-12-01
申请人： NIPPON STEEL CORP , NITTETSU PLANT SETSUKEI KK
发明人： SHIROMIZU WATARU , DESHIMARU KATSUHIKO
IPC分类号： C01B3/00 , F17C11/00
摘要： PURPOSE:To obtain a hydrogen occluding container with which a sufficient dissociation pressure can be obtained even at a low temperature by filling the container having fins outside with the mixed alloy which is formed by molding misch metal-Ni hydrogen occluding alloy and Ti-Fe hydrogen occluding alloy. CONSTITUTION:A ventilating metal pipe 3 having thin holes for the inflow and outflow of hydrogen gas is arranged inside the pressure-proof shell 1 of a hydrogen-gas pressure container, and a mixed hydrogen occluding alloy 4 molded into daughnut form is laminated in the annular part between the shell 1 and the pipe 3. Said hydrogen occluding alloy 4 is obtained by mixing and molding MmNis and TiFe in dispersion binding form. Heat transmitting fins 6 are arranged onto a container wall 1, and the occlusion heat is easily removed through air cooling. Further, even if the atmospheric temperature lowers to 0 deg. or so, the mixed hydrogen occluding alloy can be dissociated with a sufficient dissociation pressure.

10. 发明专利

JPH1060449A PURIFICATION OF COKE OVEN GAS 失效
公开(公告)号：JPH1060449A
公开(公告)日：1998-03-03
申请号：JP22149296
申请日：1996-08-22
申请人： NIPPON STEEL CORP , NITTETSU PLANT DESIGNING CORP
发明人： UENOYAMA KIYOSHI , NAKAMURA MASAAKI , WATARI SEIJI , SHIROMIZU WATARU , KOBAYASHI JUN , YAMAGUCHI SHOICHI , TANAKA SHIGEZO
IPC分类号： C10B27/00 , C10K1/10
摘要： PROBLEM TO BE SOLVED: To remove ammonia, hydrogen sulfide and hydrogen cyanide contained in a coke oven gas by-produced in producing coke by dry distilling of coal. SOLUTION: Hydrogen sulfide and hydrogen cyanide in a coke oven gas 1 are absorbed with an absorbing solution in a first gas-liquid contact tower 2 and the absorbed solution is brought into contact with fine air bubbles 18 in an oxidizing tank 4 to be oxidized to ammonium salt such as ammonium thiosulfate, ammonium sulfate and ammonium thiocyanate to recover absorbability of the absorbing solution, which is re-used in circulation into the first gas- liquid contact tower 2, thus the resultant coke oven gas 1 from which hydrogen sulfide and hydrogen cyanide are removed in the first gas-liquid contact tower 2 is introduced into a second gas-liquid contact tower 3 and brought into gas- liquid contact by using water as an absorbing liquid to absorb ammonia remaining in the coke oven gas into the absorbing liquid, then the absorbing solution absorbed ammonia is made to ammonia gas 16 in a steam distilling tower 5 and separated from the absorbing solution, and then circulated into the second gas-liquid contact tower 3 and re-used.

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