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1. 发明专利

JP2002224526A GAS/LIQUID CONTACT DEVICE 审中-公开
公开(公告)号：JP2002224526A
公开(公告)日：2002-08-13
申请号：JP2001393384
申请日：2001-12-26
申请人： MITSUBISHI HEAVY IND LTD , CHUGOKU ELECTRIC POWER
发明人： HASEGAWA SHIGEO , UGAWA NAOHIKO , TAKASHINA TORU , KITA YUKIO , IWASHITA KOICHIRO , YAMASHITA KOSUKE , TANAKA HEIJI , IKUTA KOJI
IPC分类号： B01D53/50 , B01D53/18 , B01D53/34 , B01D53/77
摘要： PROBLEM TO BE SOLVED: To provide a gas/liquid contact device used for a wet flue desulfurization device or the like. SOLUTION: In the gas/liquid contact device, a spray nozzle for upwardly discharging a slurry solution to the inside of a tower body in which a gas is circulated. A shape of a liquid entrance part of the spray nozzle is made to a bell-like shape having a curvature of 0.2 times or more as compared with a diameter of liquid discharge port of the spray nozzle and, if necessary, a material of the spray nozzle comprises a polyether type urethane rubber having a specific hardness or a polyethylene having a specific molecular weight.

2. 发明专利

JP2013244454A Exhaust gas treatment apparatus 有权
标题翻译：排气处理设备
公开(公告)号：JP2013244454A
公开(公告)日：2013-12-09
申请号：JP2012119786
申请日：2012-05-25
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： OISHI GOJI , TANAKA YUJI , UGAWA NAOHIKO
IPC分类号： B01D53/62 , B01D53/34 , B01D53/50 , B01D53/56 , B01D53/60 , B01D53/74 , B01D53/77
CPC分类号： B01D53/78 , B01D53/50 , B01D53/504 , B01D53/507 , B01D53/56 , B01D53/60 , B01D53/62 , B01D53/75 , B01D2251/304 , B01D2251/50 , B01D2258/0283 , Y02A50/2344 , Y02A50/2348 , Y02C10/04
摘要： PROBLEM TO BE SOLVED: To provide an exhaust gas treatment apparatus capable of considerably suppressing the deterioration of a COabsorption liquid in pretreatment for recovering and removing COin exhaust gas.SOLUTION: An exhaust gas treatment apparatus includes: a denitrator 12 for removing nitrogen oxide to an extremely low concentration from exhaust gas 11A exhausted from a boiler B and containing nitrogen oxide, sulfur oxide and carbon dioxide; a desulfurizer 13 installed downstream in gas flow from the denitrator 12 to remove the sulfur oxide in the exhaust gas 11B to an extremely low concentration; a finish denitration/desulfurization apparatus 14 installed downstream in gas flow from the desulfurizer 13 to finish-denitrate/desulfurize NOof extremely low concentration and SOof extremely low concentration that remain in the exhaust gas 11C with a sulfite-containing absorption liquid; and a carbon dioxide recovery apparatus 15 installed downstream in gas flow from the finish denitration/desulfurization apparatus 14 to remove and recover the carbon dioxide in the exhaust gas 11D.
摘要翻译：要解决的问题：提供一种排气处理装置，其能够显着地抑制用于回收和除去排气的预处理中的CO吸收液的劣化。排气处理装置包括：脱氮机12，用于将氮氧化物除去至从锅炉B排出并含有氮氧化物，硫氧化物和二氧化碳的废气11A的浓度极低; 在脱气器12的气体流下游设置脱硫器13，将废气11B中的硫氧化物除去至极低浓度; 在脱硫装置13的气体流下游配置了脱硫/脱硫装置14，用含有亚硫酸盐的吸收液对残留在废气11C中的极低浓度和极低浓度的NO进行了脱硝/脱硫; 以及二次二氧化碳回收装置15，其安装在来自精制脱硝/脱硫装置14的气流的下游，以除去和回收废气11D中的二氧化碳。

3. 发明专利

JP2003126829A VALUE DECISION METHOD FOR HYDROGEN SEPARATING MEMBRANE-CONTAINING DEVICE 审中-公开
公开(公告)号：JP2003126829A
公开(公告)日：2003-05-07
申请号：JP2001330415
申请日：2001-10-29
申请人： MITSUBISHI HEAVY IND LTD
发明人： KOBAYASHI TOSHIRO , KOBAYASHI KAZUTO , UGAWA NAOHIKO , KONO MASAKI
IPC分类号： B09B5/00 , B01D71/02 , G06Q30/06 , G06Q50/00 , G06F17/60
摘要： PROBLEM TO BE SOLVED: To reasonably and easily decide value for hydrogen separating membrane-containing device considering a created benefit of hydrogen capable of being produced within a service life of a hydrogen separating membrane- containing device and a scrap value of noble metals capable of being recycled by dismantling the hydrogen separating membrane-containing device. SOLUTION: This value decision method for a hydrogen separating membrane-containing device consists of a step calculating a hydrogen selling price by a calculation means 5 based on a market price of hydrogen, a step calculating a created benefit by the calculation means 5 based on hydrogen volume manufactured by the hydrogen separating membrane-containing device 2 having noble metals, the hydrogen selling price and a necessary cost for manufacturing hydrogen by the device 2, a step calculating a scrap value of the device 2 by the calculation means 5 based on value of the noble metals recycled by dismantling the device 2 and a dismantlement processing cost of the device 2 and a step calculating a value of the device 2 by the calculation means 5 based on the created benefit and the scrap value calculated by the calculation means 5.

4. 发明专利

JPH0938455A FLUE GAS TREATMENT DEVICE 失效
公开(公告)号：JPH0938455A
公开(公告)日：1997-02-10
申请号：JP19758495
申请日：1995-08-02
申请人： MITSUBISHI HEAVY IND LTD
发明人： ONIZUKA MASAKAZU , UGAWA NAOHIKO , KIMURA KAZUAKI , IWASHITA KOICHIRO , NAKAYAMA YOSHIO
IPC分类号： B01D53/34 , B01D19/02 , B01D53/50 , B01D53/77
摘要： PROBLEM TO BE SOLVED: To rapidly break a bubble, to stabilize operation and to reduce the effect on the equipment by extracting a bubble from a foaming layer on the surface of an absorbing solution in a circulating tank, breaking the bubble into gas and liq. and retuning the gas to the desulfurized gas and the liq. to the absorbing solution. SOLUTION: An air vent pipeline 7 is attached to a part of the side wall 6 of a circulating tank corresponding to a foaming layer H above the surface D of an absorbing solution B stored in a circulating tank 2 and below a foamed liq. surface G. A bubble breaker 8 is provided to the other end of the pipeline 7, the broken bubble liq. E at the lower part is returned to the tank 2 through a pipeline 9, the broken bubble gas F at the upper part is sucked by a blower 11 through a pipeline 10, returned to a flue 13 at the outlet of an absorption tower and joined to the desulfurized gas. The bubble generated in the tower is rapidly broken in this way, and operation is stabilized.

5. 发明专利

JPH08323139A STACK GAS TREATING SYSTEM 失效
公开(公告)号：JPH08323139A
公开(公告)日：1996-12-10
申请号：JP13199195
申请日：1995-05-30
申请人： MITSUBISHI HEAVY IND LTD
发明人： TATANI ATSUSHI , OKAZOE KIYOSHI , KIMURA KAZUAKI , SHIMIZU HIROSHI , OCHI EIJI , UGAWA NAOHIKO , HINO MASAO , OKINO SUSUMU , HARUKI TAKASHI , TAKASHINA TORU
IPC分类号： B01D53/34 , B01D53/46
摘要： PURPOSE: To easily make the Se contained in a stack gas harmless by cooling the stack gas below a specified temp., then separating the dust in the stack gas and admixing an Se elution preventive agent and a humidifying liq. or a soln. of the agent with the separated dust. CONSTITUTION: Most of Se in a stack gas is cooled to

6. 发明专利

JPH08266855A STACK GAS TREATING SYSTEM 失效
公开(公告)号：JPH08266855A
公开(公告)日：1996-10-15
申请号：JP7277895
申请日：1995-03-30
申请人： MITSUBISHI HEAVY IND LTD
发明人： TATANI ATSUSHI , OKAZOE KIYOSHI , KIMURA KAZUAKI , SHIMIZU HIROSHI , UGAWA NAOHIKO , HINO MASAO , OKINO SUSUMU , HARUKI TAKASHI , TAKASHINA TORU
IPC分类号： B01D53/34 , B01D53/46
摘要： PURPOSE: To make selenium contained in a stack gas harmless by providing a means for supplying a processing agent to insolubilize selenium(IV). CONSTITUTION: Most of the selenium (Se) contained in dust in a stack gas is removed by a dry dust collector 5 and dissolved in a liq. when the dust is brought into contact with the liq. such as water in a repulping means 13 and slurried. At least Se(IV) in the Se dissolved in the slurry is insolubilized by the processing agent of a processing agent supply means 16 and discharged on the solid-phase side in a separating means 15. Meanwhile, the filtrate separated in the means 15 is introduced into the slurry in a desulfurizer 20. Consequently, even Se(VI), which is contained in the stack gas, not insolubilized by the processing agent and dissolved in the filtrate, is allowed to react with the sulfurous acid absorbed in the slurry from the stack gas and reduced to Se(IV). Accordingly, since the Se dissolved in the circulating liq. consists essentially of Se(IV), the equipment of the entire system is simplified.

7. 发明专利

JPH08141349A GAS/LIQUID CONTACT DEVICE 失效
公开(公告)号：JPH08141349A
公开(公告)日：1996-06-04
申请号：JP28314994
申请日：1994-11-17
申请人： MITSUBISHI HEAVY IND LTD
发明人： OKINO SUSUMU , UGAWA NAOHIKO , TAKASHINA TORU , YAMASHITA KOSUKE , IWASHITA KOICHIRO
IPC分类号： B01D53/50 , B01D53/18 , B01D53/77
摘要： PURPOSE: To improve the dispersion of an absorption liquid and thereby obtain a satisfactory gas/liquid contact action by enlarging the outlet part of a discharge pipe at a specific culture radius of the bore of the discharge pipe, in a gas/liquid contact device consisting of the discharge pipes arranged for discharging the absorption liquid upward in a main tower system. CONSTITUTION: A reservior for an absorption liquid is formed at the bottom of a main tower system, and piping which is open into the liquid reservior and equipped with a pump is connected to a header pipe 4. The absorption liquid 3 is sent to the header pipe 4 from the liquid reservior by the pat and is elected upward from the tip of a discharge pipe 1. In this case, a curvature shape enlargement part 13 is installed on the tips of the discharge pipes connected to the header pipe 4. Consequently, the absorption liquid 3 flowing through the header pipe 4 passes through the discharge pipe 1. Further, the absorption liquid is ejected upward by the Coanda effect upon the liquid to cause it to run sticking to the wall surface of the curvature shape enlargement part 13 at the tip of the discharge pipe 1. Thus a satisfactory gas/liquid contact can be established due to the smooth spread of the absorption liquid 3.

8. 发明专利

JPH07204459A OXIDATION CONTROL OF CALCIUM SULFITE IN ABSORBING SOLUTION 失效
公开(公告)号：JPH07204459A
公开(公告)日：1995-08-08
申请号：JP701494
申请日：1994-01-26
申请人： MITSUBISHI HEAVY IND LTD
发明人： UGAWA NAOHIKO , OKINO SUSUMU , TAKASHINA TORU , TANAKA YUJI
IPC分类号： B01D53/34 , B01D53/50 , B01D53/77
摘要： PURPOSE:To reduce the COD of waste water by leading out a redox potential (hereinbelow referred to as ORP) set value at the pH of an absorbing soln. from the relation between known ORP and pH on the basis of the detection signal of the ORP of the absorbing soln. and a pH detection signal and controlling the flow rate of oxygen-containing gas on the basis of the deviation signal of the set value and the ORP of the absorbing soln. CONSTITUTION:When exhaust gas 2 containing sulfur oxide is treated with an absorbing soln. 3 containing a Ca compd., oxygen-containing gas is passed through the absorbing soln. 3 and the ORP of the absorbing soln. 3 is continuously detected to control the flow rate of the oxygen-containing gas. The ORP set value at the pH of the absorbing soln. 3 is led out from the relation between known ORP and pH on the basis of the signal of an ORP detector 7 detecting the ORP of the absorbing soln. 3 and a pH detector 8 detecting the pH of the absorbing soln. 3 by a function operator 9. Further, a flow rate regulator 10 controls the flow rate of the oxygen-containing gas on the basis of the deviation signal of the set value and the ORP of the absorbing soln. As a result, oxidation control stable against pH fluctuations can be performed and the COD of waste water can be reduced.

9. 发明专利

JPH06285329A WASTE WATER TREATING DEVICE FOR FLUE GAS DESULFURIZATION APPARATUS 失效
公开(公告)号：JPH06285329A
公开(公告)日：1994-10-11
申请号：JP25766691
申请日：1991-10-04
申请人： CHUBU ELECTRIC POWER , MITSUBISHI HEAVY IND LTD , ASAHI GLASS CO LTD
发明人： HORIBE HIDEAKI , MIWATA TATSUNORI , YOSHIDA HIROSHI , TOYAO MAMORU , TSUTSUI KOYO , KOTAKE SHINICHIRO , UGAWA NAOHIKO , OKINO SUSUMU , NAKAMURA TSUMORU , FUKUI SHIRO , UEMACHI NORIKANE , AOKI RYOSUKE
IPC分类号： B01D53/50 , B01D53/34 , B01D53/77 , C02F1/04 , C02F1/46 , C02F1/469
摘要： PURPOSE:To perform the stable operation of an evaporator and to improve the operability and lower the cost in final disposal by feeding a concentrate discharged front a concentration chamber of an electrodialysis device to a final process and using diluted liquid discharged from a dilution chamber as replenishing water for a flue gas desulfurization apparatus. CONSTITUTION:In a waste water treating device, since waste water is treated by a membrane separation device 2 having high separation performance for solute components, separation of high performance is made and by combining it with an evaporator 14, the waste water is concentrated at a high multiplying factor. And by using an electrodialysis device 3 where a cation membrane allowing the selective diffusion of univalent or divalent cations and an anion membrane allowing the selective diffusion of univalent anions are used, sulfate ions forming gypsaum content which is a main component of solid deposition is removed to prevent the failtre of equipment and the lowering of performance due to the solid deposition in the evaporator 4 where the concentrated waste water from the electrodialysis device is further concentrated.

10. 发明专利

JPH06226041A HIGH-PERFORMANCE FLUE GAS DESULFURIZING METHOD 失效
公开(公告)号：JPH06226041A
公开(公告)日：1994-08-16
申请号：JP1637993
申请日：1993-02-03
申请人： MITSUBISHI HEAVY IND LTD
发明人： HINO MASAO , TATANI ATSUSHI , UGAWA NAOHIKO , KATAYAMA HIROYUKI , IWASHITA KOICHIRO
IPC分类号： B01D53/50 , B01D53/34 , B01D53/77 , B03C3/01 , B03C3/013 , B03C3/16
摘要： PURPOSE:To desulfurize the SOx in waste gases contg. the SOx down to a low-concn. level by installing a wet process electrostatic precipitator to the rear flow part in the outlet of the absorption column of a desulfurizer, spraying a slurry contg. solid calcium carbonate and executing two-stage desulfurization. CONSTITUTION:The waste gases 1 contg. the SOx is introduced to the SOx is introduced into the desulfurizer 2 and the slurry absorbing liquid 4 from a route 3 is sprayed from a route 8 into the desulfurizer 2. The absorbing liquid, then, comes into gas-liquid contact with the waste gases in an absorption section 9 packed with grid and desulfurizes the gases. The waste gases from which the greater part of the SOx is removed are thereafter introduced via a route 14 into the wet process electrostatic precipitator 15. The slurry absorbing liquid contg. solid CaCO3 is sprayed from a route 20 in this precipitator. The slurry absorbing liquid is then attracted to an electrostatic precipitation plate 16 and wet wall parts are formed, by which a precipitation effect and a desulfurization effect are generated. In addition, ion wind is generated on the precipitation plate 16 and the gaseous boundary film of SO2 is diminished. The desulfurization performance is thus improved by the synergistic effect. A part of the absorbing liquid withdrawn therefrom is returned to the desulfurizer 2.

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