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51. 发明专利

JPH08131764A WET TYPE EXHAUST GAS TREATMENT METHOD AND APPARATUS 失效
公开(公告)号：JPH08131764A
公开(公告)日：1996-05-28
申请号：JP27146494
申请日：1994-11-04
申请人： BABCOCK HITACHI KK
发明人： SHIMAZU HIROMICHI , KATSUBE TOSHIO , NISHIMURA MASAKATSU , MIYATAKA RYOICHI , MIZOGUCHI TADAAKI
IPC分类号： B01D53/34 , B01D53/46 , B01D53/50 , B01D53/68 , B01D53/77
摘要： PURPOSE: To provide an exhaust gas treatment method which can reduce boron fluoride ion which is produced in a desulfurizer and discharged outside, the utilities of a treatment facility, and the volume of the facility. CONSTITUTION: In a treatment method in which combustion exhaust gas containing SOx, dust, boron components, and fluorine components is absorbed and dedusted by circulating absorption liquid in a dedusting tower 3, the exhaust gas after absorption and dedusting is introduced into an absorption tower 5, and SOx in the gas is absorbed by calcium type absorption liquid, the quantity 28 of at least one kind of Al, Fe, Sn, Be, and their compounds (F fixing agent) to be added into the dedusting tower 3 is determined on the basis of the quantity 26 of fuel to be supplied to a combustion furnace and the analytical results of the fuel. The determined quantity of the F fixing agent is added into the absorption liquid in the dedusting tower 3.

52. 发明专利

JPH07116456A METHOD FOR CONTROLLING FLUE GAS WET DESULFURIZATION APPARATUS 失效
公开(公告)号：JPH07116456A
公开(公告)日：1995-05-09
申请号：JP26653793
申请日：1993-10-25
申请人： BABCOCK HITACHI KK
发明人： SHIMAZU HIROMICHI , KATSUBE TOSHIO
IPC分类号： B01D53/34 , B01D53/50 , B01D53/77
摘要： PURPOSE:To maintain both desulfurization and dust removing functions constant with an absorbent and power kept minimum. CONSTITUTION:In a method for controlling a flue gas wet desulfurization apparatus in which combustion exhaust gas 20 is introduced into an absorption tower 1, SOx in the exhaust gas is absorbed by calcium-type absorbent slurry 23, and dust in the exhaust gas is removed while an absorbing liquid containing calcium sulfite generated being recovered as gypsum by oxidizing it with air 22 supplied into an absorption tower circulating tank, L/G necessary for dust removing performance and L/G necessary for desulfurization performance are obtained on the basis of the detected values of a detector 10 for dust concentration in the exhaust and a detector 11 for SOx concentration. An absorbing liquid circulating pump 5 is controlled based on the larger value of obtained values. When desulfurization performance by the circulated amount of the absorbing liquid exceeds a required level, the air amount supplied into the absorption tank circulating tank 4 is adjusted by reducing it.

53. 发明专利

JPH04322721A FLUE GAS DESULFURIZER 失效
公开(公告)号：JPH04322721A
公开(公告)日：1992-11-12
申请号：JP9387791
申请日：1991-04-24
申请人： BABCOCK HITACHI KK
发明人： KATSUBE TOSHIO
IPC分类号： B01D53/30 , B01D53/34 , B01D53/50 , B01D53/77
摘要： PURPOSE:To operate a power plant optimally even in its abnormality by predicting the desulfurization performance corresponding to the load of the plant from the waste gas amt., inlet SO2 concn., etc., related to the performance of a desulfurizer, comparing it with the preset environmental standard and optimally controlling the load of the plant. CONSTITUTION:The waste gas amt., inlet SO2 concn., outlet SO2 concn., absorbent pH, limestone slurry amt., etc., related to the performance of a desulfurizer are measured. The desulfurization performance is calculated from the measured value in a first arithmetic part 21 to obtain a design coefficient K. The performance for each load is then predicted and calculated in an arithmetic part 22, and further the desulfurization performance related to the circulating liq. amt. and absorption tower pH for each load is predicted from the data and the load waste gas properties for each kind of fuel in the internal data bank 25. The optimum load of a power plant fulfilling the standard is calculated and then set in an arithmetic part 23 from the environmental standard data 27 and the SO2 concn. at the stack outlet in the arithmetic part 22, and the optimum load is output to a controller from the power plant load output control means 24.

54. 发明专利

JPH03245820A METHOD FOR SUPPLYING CALCIUM COMPOUND AND SODIUM COMPOUND TO ABSORBING TOWER OF WET WASTE GAS DESULFURIZING EQUIPMENT 失效
公开(公告)号：JPH03245820A
公开(公告)日：1991-11-01
申请号：JP4025990
申请日：1990-02-21
申请人： BABCOCK HITACHI KK
发明人： OKAWA TAKESHI , KUNIHIRO YUJI , KATSUBE TOSHIO , NAKAMOTO TAKANORI
IPC分类号： B01D53/50 , B01D53/34 , B01D53/77
摘要： PURPOSE:To stably operate desulfurizing equipment by correcting the supply amounts of a sodium compound and a calcium compound to an absorbing tower to proper amounts when an absorbing solution is judged to be abnormal because of the lowering of the activity of the absorbing solution diagnosed on the basis of the calculated velocity constant of dissolution of the calcium compound. CONSTITUTION:A calculated SO2 absorbing amount signal 17, an HCl concn. signal 18 and an HF concn. signal 19 are inputted and the concn. 20 of Ca in an absorbing solution, the concn. 21 of CaCO3 therein and the pH signal 12 of an absorbing tower are used by an absorbing tower liquid property operator 16 and the velocity constant 26 of dissolution of limestone is calculated by a limestone velocity constant-of- dissolution operator 22 and evaluated and diagnosed as the activity of the absorbing solution by an activity diagnosing device 24 and, when the constant 26 is judged to be abnormal, guidance is outputted and the elapse of abnormality is subjected to trend display. The optimum operation quantity 28 keeping normal activity is calculated from the diagnosed result, the concn. 21 of CaCO3, Na concn. 23 and the pH signal 12 of the absorbing tower by an optimum operation quantity operator 27 to be inputted to a control apparatus.

55. 发明专利

JPS63175623A METHOD FOR CONTROLLING FLOW RATE OF AIR OF OXIDATION TOWER IN WET DESULFURIZATION EQUIPMENT 失效
公开(公告)号：JPS63175623A
公开(公告)日：1988-07-20
申请号：JP725887
申请日：1987-01-14
申请人： BABCOCK HITACHI KK
发明人： KANDA OSAMU , KATSUBE TOSHIO , KAMOGAWA HIROMI , ASANO HIROMITSU , EGASHIRA MICHIO , HASHIMOTO YASUKI
IPC分类号： B01D53/50 , B01D53/34 , B01D53/77
摘要： PURPOSE:To reduce the power consumption of auxiliary machineries, by stopping the supply of a calcium sulfite-containing slurry to an oxidation tower and reducing the amount of compressed air corresponding to the reduction of the pressure in the tower to atmospheric pressure by pressure reducing control. CONSTITUTION:Since the supply of an absorption tower withdrawn slurry 2 and the supply of sulfuric acid 4 for pH adjustment are stopped when a plant is stopped, the withdrawal of a gypsum slurry 5 is also stopped. Therefore, during the stoppage of the plant, it is unnecessary to oxidize calcium sulfite in the slurry sent to an oxidation tower 1 and only air preventing the sedimentation of the solid in the slurry may be supplied and not only the pressure in the tower is gradually lowered by a pressure regulating valve 13 but also the amount of oxidizing air is reduced by a flow rate regulating valve 11. That is, at the time of the stoppage of wet desulfurization equipment, the consumption of power for supplying compressed air can be reduced to a large extent.

56. 发明专利

JPS6349231A OXIDATION CONTROL DEVICE FOR ABSORBING LIQUID IN WET TYPE STACK GAS DESULFURIZATION APPARATUS 失效
公开(公告)号：JPS6349231A
公开(公告)日：1988-03-02
申请号：JP19237286
申请日：1986-08-18
申请人： BABCOCK HITACHI KK
发明人： NAKAMOTO TAKANORI , NOZAWA SHIGERU , NISHIMURA MASAKATSU , KATSUBE TOSHIO , MASUTOMI HIROSHI , FUJIMURA HITOSHI
IPC分类号： B01D53/50 , B01D53/34 , B01D53/77
摘要： PURPOSE:To preferably carry out oxidation with the minimum necessary amount of utilities by providing a dissolved oxygen meter measuring the concn. of dissolved oxygen in an absorbing liquid, and control means controlling the supply condition of air to be blown into according to the measured value by the dissolved oxygen meter. CONSTITUTION:A stack gas 101 is introduced into a desulfurization tower 31 and brought into contact with the sprayed absorbent slurry to be desulfurized. On the other hand, the corresponding amount of absorbent slurry with the removing amount of SO2 is supplied to a circulating tank 32. Plural oxidizing agitators 35 are provided to the circulating tank 32 to regenerate the absorbent slurry absorbing SO2 to restore the absorbing capacity for SO2. The regenerated absorbent slurry is supplied to a spray part 39 by a circulating pump 33. In this constitution, the amount of dissolved oxygen in the absorbent slurry is continuously measured by the dissolved oxygen meter 12. When the measured value becomes zero, the number of the operating agitators for oxidation is increased. Moreover, the amount of stack gas and the concn. of SO2 are measured by a flow meter 41 and an analyzer 40, and the operation of the agitators 35 is decided through a controlling part 44.

57. 发明专利

JP2013000694A Co2 recovery equipment 有权
标题翻译：二氧化碳回收设备
公开(公告)号：JP2013000694A
公开(公告)日：2013-01-07
申请号：JP2011136110
申请日：2011-06-20
申请人： Babcock Hitachi Kk , バブコック日立株式会社 , Hitachi Ltd , 株式会社日立製作所
发明人： SHIMAMURA JUN , KATSUBE TOSHIO , YOKOYAMA KOICHI , KIDERA YOSHIHIRO , MISHIMA NOBUYOSHI , ORITA HISAYUKI
IPC分类号： B01D53/62 , B01D53/14 , C01B32/50
CPC分类号： F01N3/08 , B01D53/1475 , B01D53/343 , B01D53/62 , B01D2252/20478 , B01D2257/30 , B01D2257/404 , B01D2257/504 , B01D2258/0283 , B01D2259/65 , C01B32/50 , Y02C10/04 , Y02C10/06 , Y02P20/123 , Y02P20/124 , Y02P20/152 , Y02P20/57
摘要： PROBLEM TO BE SOLVED: To prevent efficiency decrease in power generation caused by the steam extracted from a turbine system by avoiding temperature reduction of a COabsorbent to be supplied to a regeneration tower inlet caused by introduction of a steam recompression system.SOLUTION: The COrecovery equipment includes an exhaust gas cooler, a wet exhaust gas desulfurization apparatus for removing sulfur oxide in the exhaust gas, and a chemical absorption apparatus for COequipped with an absorption tower for absorbing COwith the COabsorbent, a regeneration tower for stripping the absorbent of the COto regenerate the absorbent, and a reboiler for supplying the regeneration tower with steam. The regeneration tower includes a flash tank for flash-evaporating the absorbent withdrawn from the tower bottom, a piping system having a compressor for compressing vaporized steam to supply the regeneration tower with the compressed steam and another piping system for circulating the absorbent from the outlet of the flash tank to the absorption tower via a heat exchanger with the absorbent to be sent to the regeneration tower. A heater for heating the absorbent is installed at the inlet or outlet of the regeneration tower and the heat recovered in the exhaust gas cooler is transferred to the heater by a heating medium.
摘要翻译：要解决的问题：为了防止由涡轮机系统提取的蒸汽引起的发电效率降低，以避免将要供应到的蒸汽的CO 2 吸收剂的温度降低再生塔入口引入蒸汽再压缩系统。解决方案：CO 2 回收设备包括废气冷却器，用于除去废气中的硫氧化物的湿式废气脱硫装置，以及用于CO的化学吸收装置配备有用于吸收CO 2 的吸收塔的SB SB =“POST”> 2 与CO 2 吸收剂，用于剥离CO 2 的吸收剂的再生塔以再生吸收剂，以及用于向蒸汽提供再生塔的再沸器。再生塔包括用于闪蒸从塔底取出的吸收剂的闪蒸罐，具有用于压缩蒸发蒸汽以将再生塔供给压缩蒸汽的压缩机的管道系统，以及用于使吸收剂从出口闪蒸罐通过热交换器吸收到吸收塔，吸收剂被送到再生塔。用于加热吸收剂的加热器安装在再生塔的入口或出口处，并且在废气冷却器中回收的热量通过加热介质传递到加热器。版权所有（C）2013，JPO＆INPIT

58. 发明专利

JP2008259992A Method and device for cleaning exhaust gas 有权
标题翻译：清洁排气的方法和装置
公开(公告)号：JP2008259992A
公开(公告)日：2008-10-30
申请号：JP2007106195
申请日：2007-04-13
申请人： Babcock Hitachi Kk , バブコック日立株式会社
发明人： SHIMAMURA JUN , NAKAMOTO TAKANORI , KATSUBE TOSHIO , YOSHIKAWA HIROBUMI , NOSAKA HIROYUKI , SAITO TAKAYUKI , TAGUCHI YOSHINORI , ISHIZAKA HIROSHI
IPC分类号： B01D53/64 , B01D53/34 , B01D53/50 , B01D53/81
CPC分类号： B01D53/83 , B01D53/501 , B01D53/64 , B01D2253/102 , B01D2257/302 , B01D2257/602 , F23J15/003 , F23J2215/20 , F23J2215/60 , F23J2219/40
摘要： PROBLEM TO BE SOLVED: To provide a system preventing Hg adsorption by activated carbon from being impaired by preceding adsorption by SO 3 in exhaust gas containing sulfuric anhydride (SO 3 ). SOLUTION: Mercury (Hg) can be effectively removed from exhaust gas by adsorbing it into surface fine pores of activated carbon by setting a basic substance atomizing device 11 in an exhaust gas passage in the head flow side of an activated carbon atomizing device 12, since activated carbon is found to adsorb SO 3 prior to Hg while SO 3 is adsorbed into activated carbon. SO 3 concentration after removal by conversion of the basic substance is calculated from SO 3 concentration before removal, and the blowing amount of activated carbon can be controlled from the concentration. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种防止活性炭的Hg吸附由于含有硫酸酐的废气中的SO 3 SB 3吸附而受到损害的系统（SO 3 SB 3 ）。解决方案：通过在活性炭雾化装置的头部流动侧的废气通道中设置碱性物质雾化装置11，可以将汞（Hg）吸附在活性炭的表面细孔中，从废气中有效地除去如图12所示，由于在Hg之前发现活性炭吸附SO 3 SB 3，而SO 3 SB吸附到活性炭中。通过转移碱性物质去除后的SO 3 SB 3浓度由去除前的SO 3 SB 3浓度计算，并且可以从浓度控制活性炭的吹入量。版权所有（C）2009，JPO＆INPIT

59. 发明专利

JP2001327831A WET TYPE EXHAUST GAS DESULFURIZER 失效
公开(公告)号：JP2001327831A
公开(公告)日：2001-11-27
申请号：JP2000153112
申请日：2000-05-24
申请人： BABCOCK HITACHI KK
发明人： ISHIZAKI MASANORI , NOZAWA SHIGERU , KATSUBE TOSHIO , HASHIMOTO YASUKI , NAKAMOTO TAKANORI , YOSHIKAWA HIROBUMI , ISHIZAKA HIROSHI , TANIGUCHI KENSHO , KATAGAWA ATSUSHI , ODA NAOKI
IPC分类号： B01D53/50 , B01D53/34 , B01D53/77
摘要： PROBLEM TO BE SOLVED: To reduce pressure loss in an absorption tower, to prevent dry-up of solid material in a spray liquid at an entrance part of the absorption tower and/or to reduce pressure loss and mist scattering amount at an exit part of the absorbing tower. SOLUTION: Guide plates for liquid flowing down 11a to 11c having a shape, by which an absorption liquid in the absorption tower flows down by avoiding an opening of an entrance duct 2 and/or an opening of an exit duct or flows down above the opening in a horizontal direction intermittently at several points, are arranged at a sidewall above an opening of the adsorption tower Curtain- shaped spray liquid is not formed at the opening of the entrance duct 2 of the absorption tower and/or at the opening of the exit duct thereof and thereby pressure loss in the absorption tower 1 can be reduced. Further in the absorption tower of a two-chamber type wet flue gas desulfurizer, there is a guide plate for liquid flowing down at an upper part of the exit duct and thereby a curtain- shaped liquid film part is not formed at a turning part from a flowing down stream region of the absorption tower to the exit duct. Consequently pressure loss at the exit part of the absorption tower and mist scattering amount entrained to the exit duct can be reduced.

60. 发明专利

JP2001157820A TWO ROOM TYPE WET FLUE GAS DESULFURIZATION EQUIPMENT AND DESULFURIZATION METHOD THEREFOR 失效
公开(公告)号：JP2001157820A
公开(公告)日：2001-06-12
申请号：JP34292899
申请日：1999-12-02
申请人： BABCOCK HITACHI KK
发明人： ODA NAOKI , NOZAWA SHIGERU , KATSUBE TOSHIO , ISHIZAKA HIROSHI , TAKAMOTO NARUHITO , KOMURO TAKEO
IPC分类号： B01D53/50 , B01D53/18 , B01D53/34 , B01D53/77
摘要： PROBLEM TO BE SOLVED: To provide two-room type wet desulfurization equipment and a desulfuriztion method therefor which can improve desulfurization performances without increasing pressure losses in an absorption tower and can be operated at low costs. SOLUTION: In an absorption tower 1 wherein a circulation tank 7 for storing absorption liquid, a flue gas inlet duct 2, an outlet duct 3, and a partition plate 4, which has an opening on the side of a ceiling to divide a flue gas passage, are provided, a flue gas upward flow region 12 and a flue gas downward flow region 13 are provided. Parallel flow spray nozzles 18 are arranged in the region 12, while high speed parallel flow spray nozzles 19 for spraying absorption liquid at higher absorption spray liquid speeds relative to gas speeds are disposed in the region 13. Or the cross-sectional area of the gas passage in the region 12 is made larger than that of the region 13 to make the gas flow speeds in the region 12 lower than the gas flow speeds in the region 13.

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