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    • 122. 发明公开
    • METHOD AND APPARATUS FOR PARTIAL REMOVAL OF CONTAMINANTS FROM PROCESS GAS STREAM
    • 方法和装置,通过添加臭氧污染工艺气体的部分去除
    • EP3012011A1
    • 2016-04-27
    • EP15180841.7
    • 2015-08-12
    • Linde Aktiengesellschaft
    • SUCHAK, Naresh J.
    • B01D53/56B01D53/60B01D53/64B01D53/73B01D53/75B01D53/76B01D53/78B01D53/83F01N3/18F23J15/02F23J15/04
    • B01D53/56B01D53/60B01D53/64B01D53/73B01D53/75B01D53/76B01D53/78B01D53/83B01D2251/104B01D2257/40B01D2257/404B01D2257/504B01D2257/602B01D2258/0283B01D2259/10B01D2259/122F01N3/04F01N2240/38F01N2590/02F23J15/02F23J15/04F23J2219/20F23J2219/40F23J2219/50F23J2219/60F23J2900/15003Y02E20/326Y02T10/20
    • In order to overcome the limitations and problems that earlier methods for the partial removal of contaminants from a process gas stream have experienced, the following method steps are proposed:
      comprising the steps of:
      - conveying the process gas stream (12; 30; 44; 59; 72; 85) to an inlet (14) of a scrubber (10; 38; 58; 65; 74; 93), in particular of a horizontal wet spray scrubber (10; 74),
      - distributing the process gas stream (12; 30; 44; 59; 72; 85) evenly across the inlet (14) of the scrubber (10; 38; 58; 65; 74; 93), in particular evenly throughout the width of the inlet (14) of the scrubber (10; 38; 58; 65; 74; 93),
      - forming at the the inlet (14) of the scrubber (10; 38; 58; 65; 74; 93) a flow pattern of a plurality of process gas streams partitioned from one another,
      - feeding ozone (32; 46; 61; 76; 91) into contact with selected ones of the partitioned gas streams in the scrubber (10; 38; 58; 65; 74; 93) to oxidize contaminants in the partitioned gas streams, in particular for treating a preselected percentage of the process gas stream (12; 30; 44; 59; 72; 85) entering the scrubber (10; 38; 58; 65; 74; 93),
      - removing the oxidized contaminants from the selected partitioned gas stream, and
      - recombining the selected partitioned gas streams substantially free of contaminants with the remaining partitioned gas streams containing contaminants.
    • 为了克服做用于从工艺气流中的部分除去污染物的早期方法所经历的限制和问题,下面的方法步骤建议:包括以下步骤: - 输送工艺气体流(12; 30; 44; 59; 72; 85),以在涤气器(10的​​入口(14); 38; 58; 65; 74; 93),在水平湿法喷涂洗涤器(10的​​具体; 74), - (分配工艺气流 12; 30; 44; 59; 72; 85)均匀地分布在洗涤器(10的​​入口(14); 38; 58; 65; 74; 93),尤其是均匀分布在整个的所述入口(14)的宽度 涤气器(10; 38; 58; 65; 74; 93), - 在所述洗涤器的所述入口(14)形成(10; 38; 58; 65; 74; 93)的工艺气体流的多个流动图案 彼此隔开, - 将臭氧(32; 46; 61; 76; 91)接触到在洗涤器中的分配气体流的所选择的(10; 38; 58; 65; 74; 93)以氧化中的污染物 分配气流,特别是 用于处理工艺气体流(12的预选百分比; 30; 44; 59; 72; 85)进入洗涤器(10; 38; 58; 65; 74; 93), - 除去从所选择的分区的气体流中的被氧化的污染物,以及 - 重组所选择的分配气体流基本上不含与剩余的分配气体流含有污染物的 污染物。
    • 124. 发明公开
    • FLUE-GAS TREATMENT APPARATUS AND OPERATING METHOD THEREFOR
    • 布鲁塞尔国家大学
    • EP2993398A1
    • 2016-03-09
    • EP15183249.0
    • 2015-09-01
    • Mitsubishi Hitachi Power Systems, Ltd.
    • SHIMAMURA, JunOKAWA, TsuyoshiSAITO, TakayukiYAMANE, NobuoSHIMAZU, HiromichiOCHIAI, RyotaISHIZAKA, Hiroshi
    • F23J15/02F23J15/00F23J15/06F23J15/08
    • F23J15/02F23J15/00F23J15/006F23J15/06F23J15/08Y02E20/363
    • A heat recovery unit (first device) 9, a precipitator 4, and a desulfurization unit 6 are disposed in this order in the flue-gas flow path of a boiler 1; a heating-medium using unit (second device) 10 is disposed in a region independent of the flue-gas flow path; and a heating-medium circulation line 11 (inlet-side line 11a and outlet-side line 11b) through which a heating medium is circulated and fed, a first heating-medium bypass line 13 that allows the heating medium from the line 11b to circulate to the line 11a while bypassing the second device 10, and a second heating-medium bypass line 15 that allows the heating medium from the line 11b to return to the line 11a while bypassing the first device 9 and the first line 13 are disposed between the second device 10 and first device 9. During the startup of the boiler 1 or immediately after igniting burners of the boiler 1, the following control process is performed: the entire heating medium is circulated to the second line 15 without feeding the heating medium to the first device 9; when the flue-gas temperature at the inlet of the first device 9 is increased, the heating medium is gradually fed into the heating-medium circulation line 11; when the flow rate of the heating medium in the line 11a becomes a predetermined rate and subsequently the temperature of the heating medium falls below a preset temperature, the heating medium flowing through the line 11b is circulated to the inlet of the first device 9 through the first line 13 to increase the temperature of the heating medium in the line 11a adjacent to the inlet of the first device 9; and when the flue-gas temperature at the outlet of the first device 9 exceeds a preset temperature, the heating medium is prevented from flowing through the first line 13. Thus, during the startup of the boiler, the inside of the flue-gas flow path downstream of the first device 9 is prevented from being placed in a corrosive environment, and the temperature of the heating medium flowing through the first device 9 is stably kept high.
    • 依次在锅炉1的烟气流路中设置热回收单元(第一装置)9,除尘器4和脱硫单元6; 加热介质使用单元(第二装置)10设置在独立于烟道气流路径的区域中; 和加热介质循环供给的加热介质循环管路11(入口侧管线11a和出口侧管路11b),允许来自管路11b的加热介质循环的第一加热介质旁通管路13 而绕过第二装置10的线路11a和允许来自线路11b的加热介质返回到线路11a同时旁路第一装置9和第一线路13的第二加热介质旁路管线15被布置在 第二装置10和第一装置9.在锅炉1启动期间或在点燃锅炉1的燃烧器之后立即执行以下控制过程:整个加热介质循环到第二管线15,而不将加热介质供给到 第一装置9; 当第一装置9的入口处的烟道气温度升高时,加热介质逐渐进入加热介质循环管线11; 当线路11a中的加热介质的流量变为预定速率,随后加热介质的温度下降到预定温度以下时,流经管线11b的加热介质通过第一装置9的入口循环通过 第一管线13,以增加与第一装置9的入口相邻的管线11a中的加热介质的温度; 并且当第一装置9的出口处的烟道气体温度超过预设温度时,防止加热介质流过第一管线13.因此,在锅炉启动期间,烟道气流 防止第一装置9下游的路径被放置在腐蚀性环境中,并且流过第一装置9的加热介质的温度稳定地保持高。