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11. 发明专利

JPS57205488A COAL SUPPLY TO GASIFIER 失效
公开(公告)号：JPS57205488A
公开(公告)日：1982-12-16
申请号：JP8964881
申请日：1981-06-12
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： TANAKA SHINJI , YOSHIOKA SUSUMU , MIYAMOTO TOMOHIKO , TOMURO JINICHI , MIYADERA HIROSHI , KOYAMA SHIYUNTAROU , TAKAHASHI SADAO
IPC分类号： C10J3/54 , C10J3/50
摘要： PURPOSE:To prevent deposition of pulverized coal in a hopper and to stably supply the coal to a gasifier, by charging the pulverized coal to a sealed hopper, fluidizing it therein with a gas and supplying it to the gasifier. CONSTITUTION:Coal 16 crushed and classified by a crusher 15 is charged to an atmospheric hopper 11. Upon emptying a pressurized hopper 10, a powder detector 24 detects the emptiness and inputs a signal 27 thereof to differential pressure setting means 23 for driving a valve. An output signal 29 thereof opens a motor-driven valve 20, releasing a gas and turning the hopper 10 under normal pressure, which is detected by a pressure detector 25. After it inputs a signal 28 to the setting means 23, which closes the motor-driven valve 20, a rotary valve 13 in a supply conduit 12 is driven in response to a signal 32, to charge the pulverized coal in the hopper 11 to the hopper 10. Then the hopper 10 is pressurized by opening a motor-driven valve 18 provided through a conduit 17 and the pulverized coal in the hopper 10 is supplied to a fluid-layer hopper 1, fluidized therein and fed to a gasifier via a manifold 7 by opening a motor-driven valve 22 and a rotary valve 14 in response to signals 30 and 31 from the setting means 23.

12. 发明专利

JPS57182395A APPARATUS FOR GASIFICATION OF COAL 失效
公开(公告)号：JPS57182395A
公开(公告)日：1982-11-10
申请号：JP6691481
申请日：1981-05-06
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： TOMURO JINICHI , MIYAMOTO TOMOHIKO , YOSHIOKA SUSUMU , MIYADERA HIROSHI , KOYAMA SHIYUNTAROU , TAKAHASHI SADAO , TANAKA SHINJI , HISHINUMA TAKAO
IPC分类号： C10J3/46
摘要： PURPOSE:To keep the calorific value of produced gas substantially constant, by supplying pulverized coal together with oxygen or an oxygen-contg. gas, keeping the temperature at a temp. not lower than the m.p. of ash present in coal, and gasifying coal while melting the ash present in coal. CONSTITUTION:Coal 11 and O2 12 are introduced through burners 51, 51', 52, 52' to partially oxidize coal. Unreacted carbon present in produced gas together with O2 14 is introduced through a line 21 to oxidize carbon. Molten ash is discharged through a slag tap port 4 from a slag-discharging tube 43. In this apparatus, when the amount of coal to be supplied is changed, the amount of oxygen 14' to be supplied to the coal-supply burner 51' nearest the discharge port 43 of the molten ash is controlled to inhibit temperature drop around the upper part of the slag tap poart 4 while keeping the ratio of the total amount of oxygen gas supplied to all burners to the amount of coal to be supplied substatially constant. The reason why the amount of oxygen is controlled is that if temperature is lowered to a temp. below the m.p. of ash, ash loses its fluidity and the continuous discharge of ash becomes impossible.

13. 发明专利

JPS57140625A METHOD AND APPARATUS FOR DESULFURISING WASTE GAS 失效
公开(公告)号：JPS57140625A
公开(公告)日：1982-08-31
申请号：JP1157382
申请日：1982-01-29
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： ARASHI NORIO , HISHINUMA TAKAO , AKIMOTO HIDETOSHI , TAKAHASHI SADAO , NAKASHIMA FUMITO , GOMI KENICHI
IPC分类号： B01D53/50 , B01D53/34 , B01D53/81 , C01B17/02 , C01B17/04
摘要： PURPOSE:To eliminate necessity for separately carrying an adsorbing agent of sulfur oxides as well as necessity for preparing a reducing agent by using a part of fuel coal consistently from the adsorption of sulfur oxides from conversion thereof to elemental sulfur. CONSTITUTION:The waste gas generated from a boiler 1 is passed through an adsorption tower 2 packed with semi-coke prepared in a coal dry distillation apparatus 4 and issues from a chimney through a purified gas flue 10. The semi- coke saturated with adsorbed sulfur oxides in the adsorption tower 2 is sent into a desorption tower 3 and, after sulfur oxides are desorbed therefrom, returned to the adsorption tower 2. High concn. sulfur oxides taken out of a high concn. SO2 take-out pipe 21 is passed through the packing layer of semi-coke heated to high temp. in a converter 5 to be converted to vapor of elemental sulfur. After conversion, the sulfur vapor is formed into liquid sulfur in a sulfur condenser 7 and recovered as elemental sulfur 8.

14. 发明专利

JPS5437095A METHOD OF OXIDIZING NO IN EXHAUST GAS 失效
公开(公告)号：JPS5437095A
公开(公告)日：1979-03-19
申请号：JP10267777
申请日：1977-08-29
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： TAKAHASHI SADAO , AZUHATA SHIGERU , TAKI TOMOYUKI , AKIMOTO HIDETOSHI , HISHINUMA TAKAO
IPC分类号： B01D53/56 , B01D53/34 , C01B21/36
摘要： PURPOSE:To improve wet nitrification property by adding H2O2 to an exhaust gas with a temperature of more than a specified value in oxidizing NO to NO2 with addition of oxidizing agent to an NO-contained exhaust gas.

15. 发明专利

JPS5314685A HIGH EFFICIENCY REMOVING METHOD FOR NITROGEN OXIDES 失效
公开(公告)号：JPS5314685A
公开(公告)日：1978-02-09
申请号：JP8916976
申请日：1976-07-28
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： KAJI RIYUUICHI , AKIMOTO HIDETOSHI , HISHINUMA TAKAO , TAKAHASHI SADAO , ARIKAWA KIJIROU
IPC分类号： B01D53/56 , B01D53/34 , B01D53/77
摘要： PURPOSE:To make it possible for a denitrating aq. soln. contg. transition metal ions to maintain high denitration efficienty by adding a chelate-forming complexing agent to the soln. in an amt. sufficient to mask coexisting metal ions other than the transition metal ions.

16. 发明专利

JPH09235571A UNCLOGGING OF SLUG TAP IN COAL GASIFYING FURNACE 失效
公开(公告)号：JPH09235571A
公开(公告)日：1997-09-09
申请号：JP4283996
申请日：1996-02-29
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： TAKAHASHI SADAO , KOYAMA SHUNTARO , MORIHARA ATSUSHI , TANAKA SHINJI
IPC分类号： C10J3/46 , C10J3/52 , C10J3/72
摘要： PROBLEM TO BE SOLVED: To provide a method of unclogging of a slug tap in a coal gasifying furnace capable of instantly unclogging of the slug tap in a case that the slug tap is clogged by a solidified slug without interferring continuous operation for a long period of time by scattering of the slug upward the coal gasfitying furnace having a jet stream layer in the operation and attaching and accumulating on an upper part of the jet stream layer coal gasifying furnace or on the successive device. SOLUTION: In a method releasing a clogging by a solidified slug of a slug tap in a jet stream layer-containing coal gasifying furnace 1 generating a raw material gas for chemical synthesis or a combustible gas from coal, the clogging of the slug tap is released by supplying metallic granules and oxygen or an oxygen-containing gas on the solidified slug 12 having blocked slug tap to melt the clogging solidified slug.

17. 发明专利

JPS6424892A HIGH-TEMPERATURE DRY DESULFURIZATION 失效
公开(公告)号：JPS6424892A
公开(公告)日：1989-01-26
申请号：JP18194387
申请日：1987-07-21
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： MIYAMOTO TOMOHIKO , KOYAMA SHUNTARO , TOMURO JINICHI , TAKAHASHI SADAO , MORIHARA ATSUSHI , KIDA EIJI , UEDA AKIO , TAKAMOTO NARUHITO
IPC分类号： B01D53/50 , B01D53/34 , B01D53/48 , B01D53/52 , C10G53/08 , C10L3/10
摘要： PURPOSE:To effect fine desulfurization with an excellent operability without need of a reducing column and a Claus reactor column, by contacting a high-temp. crude gas generated in a gasification furnace with a first desulfurizing agent and then with a second desulfurizing agent to refine the crude gas while returning by-products at respective stages or respective regeneration stages to the gasification furnace. CONSTITUTION:A fossil fuel such as coal and a gasifying agent (e.g., air) are fed from a feed pipe 6 into a coal gasification furnace 1, while a first desulfurizing agent of Ca type is fed thereto from a desulfurizing agent feed pipe 7. Thus, a generated gas contg. H2, CO, etc. is brought into contact with the first desulfurizing agent to convert sulfides contained in the generated gas into CaS etc. to thereby fix the sulfides in the first desulfurizing agent. Subsequently, the resulting liquid component and the generated gas are sent to a dust stripper 2. The separated solid component is oxidized in an oxidation unit 3 fed with an oxidizing agent 10, and then returned to the gasification furnace 1. On the other hand, the resulting crude gas is fed to one of two fixed-bed desulfurizer columns 4 and 5 (when one column is operated for desulfurization, the other column is in the process of regeneration), wherein the crude gas is brought into contact with a second desulfurizing agent (e.g., a cobalt oxide- bearing Ti2O carrier) for adsorption to effect fine desulfurization. The resulting refined gas 19 is sent to the next step. The second desulfurizing agent after the adsorption is oxidation- regenerated with an oxidizing agent. The generated waste gas is returned through a pipe 18 to the gasification furnace 1.

18. 发明专利

JPS5953592A Coal gasification 失效
标题翻译：煤气化
公开(公告)号：JPS5953592A
公开(公告)日：1984-03-28
申请号：JP16393282
申请日：1982-09-22
申请人： Babcock Hitachi Kk , Hitachi Ltd
发明人： MIYADERA HIROSHI , KOYAMA SHIYUNTAROU , MORIHARA ATSUSHI , TAKAHASHI SADAO , TANAKA SHINJI , NISHIMURA MAKOTO , NOGUCHI YOSHIKI
IPC分类号： C10J3/46
摘要： PURPOSE: To expand applicable coal type for gasification while achieving higher gasification efficiency, by carrying out a coal gasification, under specific condition, using a combination of fluidized-bed gasification furnace with jet type one.
CONSTITUTION: In a gasification furnace 1 consisting of a jet-bed gasification zone 202 on the upper part and fluidized-bed one 206 on the lower part, a pulverized coal is subjected to gasification at temperatures higher than the melting point of the resulting ash in the former zone 202, the remaining molten ash being allowed to drop to the latter zone 206. In the fluidized-bed gasification zone, a coal of coarse particle is subjected to gasification at temperatures below the melting point of the ash derived; the gas, tar, and fugitive particles generated being brought to the upper zone 202, thus accomplishing the objective coal gasification.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：通过在特定条件下，使用流化床气化炉与喷射式气化炉的组合，实现煤气化，同时实现更高的气化效率，扩大适用的煤气化。构成：在由上部的喷射床气化区202和下部的流化床一206组成的气化炉1中，将粉煤在高于所得灰分的熔点的温度下进行气化在前一区域202中，剩余的熔融灰被允许下降到后一区域206.在流化床气化区中，在低于衍生的灰分的熔点的温度下，使粗颗粒煤气化; 产生的气体，焦油和挥发性颗粒被带到上部区域202，从而实现客观的煤气化。

19. 发明专利

JPS57174391A COAL GASIFICATION 失效
公开(公告)号：JPS57174391A
公开(公告)日：1982-10-27
申请号：JP5984081
申请日：1981-04-22
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： MIYAMOTO TOMOHIKO , TOMURO JINICHI , YOSHIOKA SUSUMU , HISHINUMA TAKAO , MIYADERA HIROSHI , KOYAMA SHIYUNTAROU , TAKAHASHI SADAO , TANAKA SHINJI
IPC分类号： C10J3/46 , A61K8/58 , C10J3/48
摘要： PURPOSE:To increase an efficiency of pulverized coal gasification by separately supplying part of pulverized coal gasifying gas into a spouted bed gasifier and increasing oxygen concn. on the surface of a slug flowing down along the gasifier wall. CONSTITUTION:Pulverized coal is supplied via a material coal supply pipe 4 into the gasification zone of a gasifier 1. A gasifying agent consisting of oxygen and steam, air and steam, or oxygen, air and steam is supplied via a gasifying agent supply pipe 5 to the gasification zone 2. At that time, oxygen in an increased amt. in relation to carbon in the coal supplied via a lower nozzle 8, is supplied, as a gasifying agent via the same nozzle 8, to effect complete combustion. The completely burned coal particle gives ash, which melts and flows down along the gasifier wall. CO2 evolved by combustion and an excess of oxygen swirling by rise to gasify together with steam pulverized coal supplied via an upper nozzle 8, and the resulting gas is discharged as a combustible gas from the top of the gasifier 1.

20. 发明专利

JPS5384873A REDUCING METHOD FOR ABSORBING LIQUID CONTAINING METAL COMPLEX AT WET DENITRATION PROCESS 失效
公开(公告)号：JPS5384873A
公开(公告)日：1978-07-26
申请号：JP6177
申请日：1977-01-05
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： KAJI RIYUUICHI , AKIMOTO HIDETOSHI , HISHINUMA TAKAO , TAKAHASHI SADAO , ARIKAWA KIJIROU
IPC分类号： B01D53/14 , B01D53/34 , B01D53/56 , B01D53/77
摘要： PURPOSE:To prevent effectively the deterioration of the metal complex due to the oxidation by the oxidixing substance such as O2, etc. contained in the exhaust gas, by contacting the metal complex in the oxidizing state generated in the absorbing liquid ofr denitration with SO2 at pH below 3 in the presence of active carbon.

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