Title:
石炭燃焼用燃焼ユニットのための洗浄システムおよび洗浄方法
Document Type and Number:
Japanese Patent JP2007508936
Kind Code:
A
Abstract:
Systems and methods for removing toxic emissions from flue gas of coal fired combustion units can be achieved. Decreasing sulfur oxide emissions from a coal fired circulating fluidized bed reactor can include treating flue gas unit using a wet scrubber. Wet scrubbers can include gas phase scrubbers, liquid phase scrubbers, and gas-liquid phase scrubbers. Additionally, toxic emissions can be reduced from coal fired combustion units such as circulating fluidized beds or pulverized coal units. Particulates can be removed from flue gas of the coal fired combustion unit. The flue gas can then be treated with at least two consecutive wet scrubbers to produce a low sulfur flue gas. In addition to sulfur oxides, a wide variety of toxic emissions can be removed such as nitrogen oxides, carbon monoxide, arsenic, beryllium, cadmium, hydrochloric acid, chromium, cobalt, hafnium, lead, manganese, mercury, nickel, selenium, benzo(a)pyrene, and combinations thereof. Such systems and methods provide improved levels of toxic emissions over currently available technologies.
Inventors:
Hendrickson, Michael A.
Cox, Craig E.
Cox, Craig E.
Application Number:
JP2006536780A
Publication Date:
April 12, 2007
Filing Date:
October 20, 2004
Export Citation:
Assignee:
Enviroserve Associates, L.L.C.
Hendrickson, Michael A.
Hendrickson, Michael A.
International Classes:
B01D53/50; B01D53/34; B01D53/56; B01D53/62; B01D53/64; B01D53/68; B01D53/72; B01D53/77; B01D53/81; B01D53/86; C01B21/00; F23C10/00; F23J11/00; F23J15/02; F23J15/04; B01D
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita