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1. 发明公开

EP2044997A4 APPARATUS FOR REMOVING OF TRACE OF TOXIC SUBSTANCE FROM EXHAUST GAS AND METHOD OF OPERATING THE SAME 有权转让
标题翻译：从废气中去除有毒物质痕迹的装置及其操作方法
公开(公告)号：EP2044997A4
公开(公告)日：2009-08-05
申请号：EP06781656
申请日：2006-07-26
申请人： BABCOCK HITACHI KK
发明人： NAGAI YOSHINORI , KATSUBE TOSHIO , MORITA ISATO , KIKKAWA HIROFUMI , KATO YASUYOSHI
IPC分类号： B01D46/02 , B01D53/64 , B01D53/86 , B01D53/94 , B01J23/28
CPC分类号： B01D53/75 , B01D46/0027 , B01D46/02 , B01D53/501 , B01D53/8625 , B01D53/8665 , B01D2257/2045 , B01D2257/602 , B01J23/22 , B01J23/28 , B01J23/30 , B01J35/06 , B01J37/0036 , B01J37/0063 , B01J37/0215
摘要： An apparatus for removing of traces of toxic substances from exhaust gas, comprising, disposed in sequence from the upstream side in a flow channel of exhaust gas emitted from combustion equipment, a denitration unit including a denitration catalyst layer capable of removing nitrogen oxides from the exhaust gas and capable of oxidizing metallic mercury; an air preheater adapted for heat exchange between air for combustion in the combustion equipment and the exhaust gas; a dust removal unit having a bag filter containing a catalyst for metallic mercury oxidation; and a desulfurization unit for removing sulfur oxide from the exhaust gas. The bag filter may be disposed in advance of the desulfurization unit. Thus, there can be provided an apparatus for removing of traces of toxic substances from exhaust gas that is stable over a prolonged period of time and is highly reliable; and provided a method of operating the same.

2. 发明公开

EP2722097A4 COMBUSTION EXHAUST GAS TREATMENT SYSTEM AND COMBUSTION EXHAUST GAS TREATMENT METHOD 有权转让
标题翻译：系统用于处理燃烧废气处理燃烧废气和方法
公开(公告)号：EP2722097A4
公开(公告)日：2015-03-18
申请号：EP12802467
申请日：2012-06-19
申请人： BABCOCK HITACHI KK , MITSUBISHI HITACHI POWER SYS
发明人： SHIMAMURA JUN , KATSUBE TOSHIO , YOKOYAMA KOUICHI , 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： A combustion exhaust gas treatment system comprising: a heat exchanger (A) for recovering heat contained in the combustion exhaust gas into heat medium, an absorption column for obtaining CO 2 removed gas by absorbing CO 2 in the combustion exhaust gas into absorbent, a heat exchanger (B) for applying heat recovered by heat medium to the CO 2 absorbed absorbent, a desorption column for desorbing the absorbent by removing CO 2 from the CO 2 absorbed absorbent, a flash tank for flash vaporizing the desorbed absorbent and a heat exchanger (E) for transferring heat from the desorbed absorbent to the CO 2 absorbed absorbent, wherein the CO 2 absorbed absorbent can be supplied from the absorption column to the desorption column via the heat exchanger (E) and the heat exchanger (B) in this order, and the desorbed absorbent can be supplied from the desorption column to the absorption column via the flash tank and the heat exchanger (E) in this order.

3. 发明公开

EP2520351A4 ABSORBING SOLUTION AND RECOVERY METHOD FOR CARBON DIOXIDE 有权转让
标题翻译：吸收剂溶液和方法进行回收二氧化碳
公开(公告)号：EP2520351A4
公开(公告)日：2014-05-14
申请号：EP09852816
申请日：2009-12-28
申请人： BABCOCK HITACHI KK
发明人： YOKOYAMA KOICHI , MIYAMOTO EIJI , KIKKAWA HIROFUMI , TAKAMOTO SHIGEHITO , KATSUBE TOSHIO , ODA NAOKI , SHIMAMURA JUN , KURAMOTO MASAHARU
IPC分类号： B01D53/14 , C01B32/50 , B01D53/62
CPC分类号： B01D53/1475 , B01D53/1493 , B01D53/62 , B01D2252/20405 , B01D2252/20421 , B01D2252/20426 , B01D2252/20473 , B01D2252/20484 , B01D2252/205 , B01D2252/2056 , B01D2252/504 , B01D2257/504 , Y02A50/2342 , Y02C10/06
摘要： A method of recovering carbon dioxide, including bringing gas to be processed containing carbon dioxide (CO 2 ) and oxygen into contact with the CO 2 -absorbing solution according to Claim 1 in an absorption column to form a CO 2 -rich solution; subsequently circulating the solution in a regeneration column to thermally release and recover CO 2 and recirculating the absorbing solution as a CO 2 -poor solution inside the absorption column; and performing heat exchange between the solution being delivered from the absorption column to the regeneration column and the solution recirculated from the regeneration column to the absorption column, wherein an alkanolamine aqueous solution containing a silicone oil and/or an organosulfur compound represented by the Formula (A) or (B) is added to the solution inside the absorption column and/or the solution recirculated from the regeneration column to the absorption column to adjust the composition of the absorbing solution inside the absorption column so as to include the alkanolamine in an amount of 30% by weight or more and 60% by weight or less, the organosulfur compound in an amount of 0.01% by weight or more and 2% by weight or less, and the silicone oil in an amount of 5 ppm by weight or more and 100 ppm by weight or less.

4. 发明专利

CA2785235A1 CARBON DIOXIDE-ABSORBING SOLUTION AND METHOD OF RECOVERING CARBON DIOXI DE 未知
公开(公告)号：CA2785235A1
公开(公告)日：2011-07-07
申请号：CA2785235
申请日：2009-12-28
申请人： BABCOCK HITACHI KK
发明人： YOKOYAMA KOICHI , MIYAMOTO EIJI , KIKKAWA HIROFUMI , TAKAMOTO SHIGEHITO , KATSUBE TOSHIO , ODA NAOKI , SHIMAMURA JUN , KURAMOTO MASAHARU
IPC分类号： B01D53/14 , C01B32/50 , B01D53/62
摘要： A method for the recovery of carbon dioxide (CO2) which comprises: bringing, in an absorption tower, a gas to be treated into contact with a CO2-absorbing solution set forth in claim 1 to form a CO2-rich solution, said gas containing both CO2 and oxygen; circulating the CO2-rich solution in a regeneration tower to heat and discharge the CO2 and thus recover the same; returning the obtained CO2-poor solution to the absorption tower; and conducting heat exchange between the solution transferred from the absorption tower to the regeneration tower and the solution returned from the regeneration tower to the absorption tower. The method is characterized by: adding either a silicone oil and/or an aqueous alkanolamine solution in which an organosulfur compound represented by general formula (A) or (B) is dissolved to the solution present in the absorption tower and/or the solution returned from the regeneration tower to the absorption tower; and controlling the composition of the absorbing solution present in the absorption tower in a manner that makes the content of the alkanolamine falls within the range of 30 to 60wt%, that makes the content of the organosulfur compound falls within the range of 0.01 to 2wt%, and that makes the content of the silicone oil falls within the range of 5 to 100ppm (by weight).

5. 发明专利

CA2504330A1 EXHAUST GAS TREATING APPARATUS 未知
公开(公告)号：CA2504330A1
公开(公告)日：2004-05-21
申请号：CA2504330
申请日：2003-10-30
申请人： BABCOCK HITACHI KK
发明人： KATSUBE TOSHIO , SAITOU TAKAYUKI , SHIMAZU HIROMICHI , NAKAMOTO TAKANORI , MURAMOTO KOUJI
IPC分类号： F23G5/46 , F23J15/02 , F23J15/04 , F23J15/06 , F23J15/08 , F23J15/00
摘要： An exhaust gas treating apparatus comprising, sequentially arranged from an upstream side to a downstream side of an exhaust gas duct of combustion unit , air preheater (3) for preheating air for combustion in a combustion unit wit h the use of exhaust gas discharged from the combustion unit; gas gas heater (GGH) heat recovering unit (4) composed of a bundle of heat transfer tubes f or recovering the heat of exhaust gas into heating medium; dust collector (5); wet type desulfurizer (7); and gas gas heater (GGH) reheating unit (8) composed of a bundle of heat transfer tubes for heating the exhaust gas from an outlet of the desulfurizer with the heating medium fed from the gas gas heater (GGH) heat recovering unit (4), wherein the heat transfer tube bundle of the heat recovering unit (4) is disposed in a square arrangement to the direction of gas flow so that the exhaust gas flow rate between adjacent hea t transfer tubes disposed at right angles to the direction of gas flow at the GGH heat recovering unit (4), inter-tube flow rate, is 10 m/s or below. The abrasion and corrosion of heat transfer tube bundle can be reduced even when the exhaust gas contains dust in high proportion.

6. 发明专利

AT109998T 未知
公开(公告)号：AT109998T
公开(公告)日：1994-09-15
申请号：AT89308929
申请日：1989-09-04
申请人： BABCOCK HITACHI KK
发明人： KURODA HIROSHI , NOZAWA SHIGERU , NISHIMURA MASAKATSU , KATSUBE TOSHIO , NAKAMOTO TAKANORI
IPC分类号： B01D53/50 , B01D53/77 , B01F3/04 , B01F5/10 , B01F7/00 , B01D53/34
摘要： An apparatus for wet process exhaust (3) gas desulfurization comprises a spreading portion for spreading absorbent slurry (9) including calcium compound, a absorbing tower for bringing the absorbent slurry spread from the spreading portion into contact with exhaust gas (3) including sulfur oxides from opposite directions so as to absorb the sulfur oxides in the exhaust gas (3) into the absorbent slurry (9), a slurry tank (11) disposed below of the absorbing tower for receiving the absorbent slurry from the absorbing tower, a stirrer for stirring and forwarding the absorbent slurry radial inwardly, the stirrer being in an axial flow type one having a propeller, and circular system for circulating the absorbent slurry from the slurry tank to the spreading portion. The apparatus further comprises a plurality of nozzles for feeding oxidizer gas including oxygen into the absorbent slurry from a backside of the propeller towards a periphery thereof uniformly with respect to a circumferential direction, thereby bubbling the oxidizer gas finely around the propeller.

7. 发明专利

CA2791354A1 EXHAUST GAS TREATMENT SYSTEM EQUIPPED WITH CARBON DIOXIDE REMOVAL DEVICE 未知
公开(公告)号：CA2791354A1
公开(公告)日：2011-09-09
申请号：CA2791354
申请日：2010-03-03
申请人： BABCOCK HITACHI KK
发明人： SHIMAMURA JUN , KATSUBE TOSHIO , TAKAMOTO SHIGEHITO , KURAMOTO MASAHARU , ODA NAOKI
IPC分类号： B01D53/62 , B01D53/50 , B01D53/77 , C01B32/50 , F23J15/00
摘要： Provided is an exhaust gas treatment system with which it is possible to prevent the generation of adhesive matter inside a main duct or a flue at the point where exhaust gas converges after CO2 has been removed or thereafter, reduce the labor required for maintenance such as cleaning etc., and make long-term operation possible. The exhaust gas treatment system comprises: a main duct (6) for emitting gas from a boiler (1); a diverging duct (40) for diverging a portion of the exhaust gas current from the main duct; a CO2 removal device (20) for using an amine absorbent to absorb and remove carbon dioxide (CO2) contained in the diverged exhaust gas; and a return duct (42) for causing the exhaust gas from which the CO2 has been removed by the CO2 removal device to converge with exhaust gas that has yet to be diverged, wherein heating means (8) for evaporation of the mist of the amine absorbent contained in the converged exhaust gas is provided at the return duct (42) that comes before the exhaust gas convergence point.

8. 发明专利

AU2003266504A1 EXHAUST SMOKE-PROCESSING SYSTEM 未知
公开(公告)号：AU2003266504A1
公开(公告)日：2004-03-29
申请号：AU2003266504
申请日：2003-09-08
申请人： BABCOCK HITACHI KK
发明人： KIKKAWA HIROFUMI , NAKAMOTO TAKANORI , KATSUBE TOSHIO
IPC分类号： F23J15/00 , F23J15/02 , F23J15/08 , F23L15/00
摘要： An exhaust smoke processing system comprises air preheater for heating combustion air by exhaust smoke discharged from a boiler, a heat recoverer for heating a heat medium by exhaust smoke discharged from the air preheater, a dust collector for collecting soot and dust in exhaust smoke discharged from the heat recoverer, a wet-type exhaust smoke processing apparatus for processing exhaust smoke discharged from the dust collector, a reheater for heating exhaust smoke discharged from the wet-type exhaust smoke processing apparatus by the heat medium, and a heat medium circulation pipe passage for circulating the heating medium between the reheater and the heat recoverer. the system measures a heavy metal concentration in the exhaust smoke and adjusts the temperature of exhaust smoke at an outlet of the heat recoverer such that the measured value falls within a predetermined range.

9. 发明专利

CA2498263A1 EXHAUST SMOKE-PROCESSING SYSTEM 未知
公开(公告)号：CA2498263A1
公开(公告)日：2004-03-18
申请号：CA2498263
申请日：2003-09-08
申请人： BABCOCK HITACHI KK
发明人： KIKKAWA HIROFUMI , NAKAMOTO TAKANORI , KATSUBE TOSHIO
IPC分类号： F23J15/00 , F23J15/02 , F23J15/08 , F23L15/00
摘要： An exhaust smoke-processing system capable of economically removing heavy metals. The system comprises an air preheater (3) for heating air for combustion by exhaust smoke exhausted from a boiler (1), a heat recoverer (1 1) for heating a heat medium by exhaust smoke exhausted from the air pre-heater , a dust collector (4) for collecting soot and dust in exhaust smoke exhausted from the heat recoverer, a wet-type exhaust smoke-processing apparatus for processing exhaust smoke exhausted from the dust collector, a reheater (13) for heating exhaust smoke exhausted from the apparatus by the heat medium, a nd a heat medium circulation pipe passage (15) for circulating the heat medium between the reheater (13) and the heat recoverer (11). Temperature control means is provided in the heat medium circulation pipe passage. The means measures heavy metal concentration in exhaust smoke exhausted from one or mo re of the dust collector (4), the wet-type exhaust smoke-processing apparatus (6), and the reheater (13) and adjusts exit exhaust smoke temperature of the heat recoverer so that the measured value is within a predetermined range.

10. 发明专利

ES2057135T3 未知
公开(公告)号：ES2057135T3
公开(公告)日：1994-10-16
申请号：ES89308929
申请日：1989-09-04
申请人： BABCOCK HITACHI KK
发明人： KURODA HIROSHI , NOZAWA SHIGERU , NISHIMURA MASAKATSU , KATSUBE TOSHIO , NAKAMOTO TAKANORI
IPC分类号： B01D53/50 , B01D53/77 , B01F3/04 , B01F5/10 , B01F7/00 , B01D53/34
摘要： An apparatus for wet process exhaust (3) gas desulfurization comprises a spreading portion for spreading absorbent slurry (9) including calcium compound, a absorbing tower for bringing the absorbent slurry spread from the spreading portion into contact with exhaust gas (3) including sulfur oxides from opposite directions so as to absorb the sulfur oxides in the exhaust gas (3) into the absorbent slurry (9), a slurry tank (11) disposed below of the absorbing tower for receiving the absorbent slurry from the absorbing tower, a stirrer for stirring and forwarding the absorbent slurry radial inwardly, the stirrer being in an axial flow type one having a propeller, and circular system for circulating the absorbent slurry from the slurry tank to the spreading portion. The apparatus further comprises a plurality of nozzles for feeding oxidizer gas including oxygen into the absorbent slurry from a backside of the propeller towards a periphery thereof uniformly with respect to a circumferential direction, thereby bubbling the oxidizer gas finely around the propeller.

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