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1.发明公开
公开(公告)号：EP2260940A1
公开(公告)日：2010-12-15
申请号：EP08765411.7
申请日：2008-06-04
Applicant: CHIYODA CORPORATION
Inventor： KAWAMURA, Kazushige , TAKEDA, Dai , AWAI, Eiji
CPC classification number: B01D53/8609 , B01D2255/702 , B01D2257/302 , B01D2257/602 , B01J21/18 , B01J23/04 , B01J27/08 , B01J37/0201 , C01B17/78 , F23J2215/20 , F23J2215/60 , F23J2219/10 , F23J2219/30 , F23J2219/60
Abstract: A carbon-based catalyst for flue gas desulfurization is brought into contact with a flue gas containing at least SO 2 gas, oxygen and water vapor so that the SO 2 gas can react with the oxygen and the water vapor to form sulfuric acid which is to be recovered. On a surface of the carbon-based catalyst, iodine, bromine or a compound thereof is added, ion exchanged or supported and a water-repellent treatment is applied. The carbon-based catalyst can also be used as a mercury adsorbent for flue gas treatment for adsorbing and removing metallic mercury from a flue gas containing metallic mercury, SO 2 gas, oxygen and water vapor.
Abstract translation: 排烟脱硫甲碳系催化剂所接触与烟道气含有至少SO 2个气体，氧气和水蒸汽，以便做的SO 2种气体可与氧和水蒸汽反应，以形成硫酸所有这是为了 恢复。 在碳系催化剂，碘，溴或它们被添加的化合物的表面，离子交换或负载和一个防水处理被应用。 因此，该碳系催化剂，可以使用作为汞吸附剂烟气处理用于吸附和从含有金属汞，二氧化硫气体，氧气和水蒸汽的烟道气中除去金属汞。
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公开(公告)号：EP2559667B8
公开(公告)日：2018-09-19
申请号：EP11759612.2
申请日：2011-03-25
Applicant: Chiyoda Corporation
Inventor： KAWAMURA, Kazushige , OGI, Satoshi , SHINOHARA, Masayo
IPC: B01D61/02 , C02F1/20 , C02F1/44 , C02F1/52 , C02F1/58 , C02F1/66 , C02F1/70 , C02F1/72 , C02F3/12 , C02F3/28 , C02F3/30 , C02F9/00 , C02F101/10 , C02F101/14 , C02F101/16 , C02F101/18 , C02F101/30 , C02F103/18
CPC classification number: C02F9/00 , B01D61/025 , B01D61/04 , B01D2311/04 , B01D2311/103 , B01D2311/12 , B01D2311/18 , B01D2311/2626 , B01D2311/2634 , B01D2311/2642 , B01D2311/2665 , B01D2311/2688 , B01D2315/06 , C02F1/20 , C02F1/5236 , C02F1/66 , C02F1/72 , C02F3/12 , C02F3/28 , C02F3/30 , C02F2001/5218 , C02F2101/101 , C02F2101/106 , C02F2101/14 , C02F2101/16 , C02F2101/18 , C02F2101/30 , C02F2103/18 , Y02W10/15 , B01D2311/2661
Abstract: Disclosed herein are a treatment method and a treatment system which are capable of inexpensively, efficiently, and safely treating wastewater discharged from a gasification plant in large amounts and containing two or more persistent substances. The method for treating wastewater discharged by wet-cleaning of gas obtained by partial oxidation of fossil fuel includes: a free cyanide removal step 2 in which free cyanides contained in the wastewater are removed by acidifying and aerating the wastewater; a biological treatment step 3 in which the wastewater that has been treated in the free cyanide removal step 2 is biologically treated; and a decomposition treatment step 4 in which COD components contained in the wastewater that has been treated in the biological treatment step 3 are decomposed. The decomposition treatment step 4 is preferably performed by an advanced oxidation treatment means, and may include the step of crystallizing calcium sulfate by adding a calcium-based alkaline agent to the wastewater.
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Patent Agency Ranking
公开(公告)号：EP2559667B1
公开(公告)日：2018-08-08
申请号：EP11759612.2
申请日：2011-03-25
Applicant: Chiyoda Corporation
Inventor： KAWAMURA, Kazushige , OGI, Satoshi , SHINOHARA, Masayo
IPC: B01D61/02 , C02F1/20 , C02F1/44 , C02F1/52 , C02F1/58 , C02F1/66 , C02F1/70 , C02F1/72 , C02F3/12 , C02F3/28 , C02F3/30 , C02F9/00 , C02F101/10 , C02F101/14 , C02F101/16 , C02F101/18 , C02F101/30 , C02F103/18
CPC classification number: C02F9/00 , B01D61/025 , B01D61/04 , B01D2311/04 , B01D2311/103 , B01D2311/12 , B01D2311/18 , B01D2311/2626 , B01D2311/2634 , B01D2311/2642 , B01D2311/2665 , B01D2311/2688 , B01D2315/06 , C02F1/20 , C02F1/5236 , C02F1/66 , C02F1/72 , C02F3/12 , C02F3/28 , C02F3/30 , C02F2001/5218 , C02F2101/101 , C02F2101/106 , C02F2101/14 , C02F2101/16 , C02F2101/18 , C02F2101/30 , C02F2103/18 , Y02W10/15 , B01D2311/2661
Abstract: Disclosed herein are a treatment method and a treatment system which are capable of inexpensively, efficiently, and safely treating wastewater discharged from a gasification plant in large amounts and containing two or more persistent substances. The method for treating wastewater discharged by wet-cleaning of gas obtained by partial oxidation of fossil fuel includes: a free cyanide removal step 2 in which free cyanides contained in the wastewater are removed by acidifying and aerating the wastewater; a biological treatment step 3 in which the wastewater that has been treated in the free cyanide removal step 2 is biologically treated; and a decomposition treatment step 4 in which COD components contained in the wastewater that has been treated in the biological treatment step 3 are decomposed. The decomposition treatment step 4 is preferably performed by an advanced oxidation treatment means, and may include the step of crystallizing calcium sulfate by adding a calcium-based alkaline agent to the wastewater.
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公开(公告)号：EP2135664B1
公开(公告)日：2014-03-05
申请号：EP08721846.7
申请日：2008-03-05
Applicant: CHIYODA CORPORATION
Inventor： KAWAMURA, Kazushige , TAKEDA, Dai , AWAI, Eiji , KUMAGAI, Akira
CPC classification number: B01D53/1456 , B01D53/64 , B01D53/78 , B01D2251/106 , B01D2257/108 , B01D2257/302 , B01D2257/602
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公开(公告)号：EP2260940B8
公开(公告)日：2019-10-09
申请号：EP08765411.7
申请日：2008-06-04
Applicant: CHIYODA CORPORATION
Inventor： KAWAMURA, Kazushige , TAKEDA, Dai , AWAI, Eiji
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公开(公告)号：EP2260940B1
公开(公告)日：2019-08-14
申请号：EP08765411.7
申请日：2008-06-04
Applicant: CHIYODA CORPORATION
Inventor： KAWAMURA, Kazushige , TAKEDA, Dai , AWAI, Eiji
Abstract: A carbon-based catalyst for flue gas desulfurization is brought into contact with a flue gas containing at least SO 2 gas, oxygen and water vapor so that the SO 2 gas can react with the oxygen and the water vapor to form sulfuric acid which is to be recovered. On a surface of the carbon-based catalyst, iodine, bromine or a compound thereof is added, ion exchanged or supported and a water-repellent treatment is applied. The carbon-based catalyst can also be used as a mercury adsorbent for flue gas treatment for adsorbing and removing metallic mercury from a flue gas containing metallic mercury, SO 2 gas, oxygen and water vapor.
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公开(公告)号：EP2135664A1
公开(公告)日：2009-12-23
申请号：EP08721846.7
申请日：2008-03-05
Applicant: CHIYODA CORPORATION
Inventor： KAWAMURA, Kazushige , TAKEDA, Dai , AWAI, Eiji , KUMAGAI, Akira
CPC classification number: B01D53/1456 , B01D53/64 , B01D53/78 , B01D2251/106 , B01D2257/108 , B01D2257/302 , B01D2257/602
Abstract: An exhaust gas treating method removes sulfur dioxide from exhaust gas containing at least sulfur dioxide and mercury by bringing the exhaust gas into contact with absorption liquid. Persulfate is added into the absorption liquid or alternatively, iodine gas is added to the exhaust gas before the exhaust gas is brought into contact with the absorption liquid. A high removal rate for both sulfur dioxide and mercury is stably maintained if the load of power generation and the composition of exhaust gas fluctuate.
Abstract translation: 排气处理方法通过使废气与吸收液体接触而从至少含有二氧化硫和汞的排气中除去二氧化硫。 将过硫酸盐加入到吸收液体中，或者在废气与吸收液体接触之前，将碘气加入废气中。 如果发电负荷和废气组成波动，二氧化硫和汞的去除率都很高。
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