公开(公告)号：US5017349A

公开(公告)日：1991-05-21

申请号：US326378

申请日：1989-03-21

申请人： Wayne T. Davis ,  Gregory D. Reed ,  Timothy C. Keener

发明人： Wayne T. Davis ,  Gregory D. Reed ,  Timothy C. Keener

IPC分类号： B01D53/50

CPC分类号： B01D53/508

摘要： A system for the removal of sulfur compounds from the flue gas from a high-sulfur coal combustion unit. The flue gas is contacted with a combination of a calcium hydroxide slurry and gaseous ammonia in a combined stoichiometric ratio which provides for near 100% utilization of the calcium hydroxide and ammonia with a sulfur dioxide removal efficiency approaching 100%. The system is useful in treating flue gas from high-sulfur coal combustion to remove the sulfur dioxide therefrom so that the flue gas can be exhausted to the atmosphere.

摘要翻译： 一种用于从高硫煤燃烧单元从烟道气中除去硫化合物的系统。 烟道气与氢氧化钙浆料和气态氨的组合以组合的化学计量比接触，其提供接近100％的氢氧化钙和氨的利用，二氧化硫去除效率接近100％。 该系统可用于处理来自高硫煤燃烧的烟道气以从其中除去二氧化硫，使得废气可以排放到大气中。

公开(公告)号：US07858061B2

公开(公告)日：2010-12-28

申请号：US11300879

申请日：2005-12-15

申请人： Rajender S. Varma ,  Yuhong Ju ,  Subhas Sikdar ,  Joo Youp Lee ,  Timothy C. Keener

发明人： Rajender S. Varma ,  Yuhong Ju ,  Subhas Sikdar ,  Joo Youp Lee ,  Timothy C. Keener

IPC分类号： B01D45/00

CPC分类号： B01D53/64 ,  B01D2253/106 ,  B01D2257/602

摘要： Oxidative sorbents are provided for adsorbing elemental or oxidized mercury from mercury-containing fluids such as flue gas from a coal-burning power utility or the like at a temperature range of about 50 to 350° C. The method of preparing and using the oxidative sorbents is also provided. The oxidative sorbent compositions include one or more silicates capable of cation exchange with a plurality of active metal cations and their counter anions. The silicates may include those selected from clays such as montmorillonite, laumonite, bentonite, Mica, vermiculite and kaolinite, and from silica gels, natural and synthetic molecular sieves, zeolites, and ashes from stoker- and pulverized coal-fired boilers. The one or more oxidative metal halides and/or sulfates may be selected from the group consisting of CuCl, CuBr, CuCl2, CuBr2, CuSO4, FeCl2, FeCl3, FeSO4, Fe2(SO4)3, ZnCl2, ZnBr2, NiCl2, and NiSO4. The oxidative sorbents may also include activated carbon.

摘要翻译： 提供氧化吸附剂用于在约50至350℃的温度范围内从含汞流体（例如来自燃煤电力公司等的烟道气）中吸附元素或氧化的汞。制备和使用氧化性吸附剂的方法 也提供。 氧化吸附剂组合物包括能够与多种活性金属阳离子及其反阴离子进行阳离子交换的一种或多种硅酸盐。 硅酸盐可以包括选自粘土如蒙脱石，硅镁矿，膨润土，云母，蛭石和高岭土的硅酸盐，以及来自加热器和粉煤燃烧锅炉的硅胶，天然和合成分子筛，沸石和灰分。 一种或多种氧化性金属卤化物和/或硫酸盐可以选自CuCl，CuBr，CuCl 2，CuBr 2，CuSO 4，FeCl 2，FeCl 3，FeSO 4，Fe 2（SO 4）3，ZnCl 2，ZnBr 2，NiCl 2和NiSO 4。 氧化性吸附剂也可以包括活性炭。

公开(公告)号：US06214308B1

公开(公告)日：2001-04-10

申请号：US09208353

申请日：1998-12-09

申请人： Timothy C. Keener ,  Soon-Jai Khang ,  Antoinette Weil Stein

发明人： Timothy C. Keener ,  Soon-Jai Khang ,  Antoinette Weil Stein

IPC分类号： B01D5350

CPC分类号： B01D53/60 ,  F23J15/003 ,  F23J15/006 ,  F23J2215/10 ,  F23J2215/20 ,  F23J2217/101 ,  F23J2217/40 ,  Y02A50/2344 ,  Y02A50/2348

摘要： A two stage method is described for the removal of NOx and SOx from flue gas. The first stage removes all NOx by sodium sulfite sorbent injection. The second stage removes SOx by sodium bicarbonate injection. The sodium sulfite product formed in the second stage is transferred to the first stage for injection.

摘要翻译： 描述了从烟道气中去除NOx和SOx的两阶段方法。 第一阶段通过亚硫酸钠吸附剂注入去除所有的NOx。 第二阶段通过碳酸氢钠注射去除SOx。 在第二阶段中形成的亚硫酸钠产物转移到第一阶段进行注射。

公开(公告)号：US5037450A

公开(公告)日：1991-08-06

申请号：US508842

申请日：1990-04-12

申请人： Timothy C. Keener ,  Soon-Jai Khang

发明人： Timothy C. Keener ,  Soon-Jai Khang

IPC分类号： B01D53/48 ,  B01D53/52 ,  B01D53/56 ,  C10L9/08 ,  C10L10/00

CPC分类号： C10L9/08 ,  B01D53/485 ,  B01D53/52 ,  B01D53/56 ,  C10L10/02

摘要： An apparatus and process for desulfurizing and denitrifying coal by pyrolysis and subsequently treating the gaseous pyrolysis by-products with a solid sorbent to substantially reduce the release of SO.sub.x gases to acceptable levels. In one aspect of the invention, coal is pyrolyzed in the inner chamber of the desulfurization and denitrification apparatus to drive off the sulfur and nitrogen compounds contained therein. In another aspect of the invention, the gaseous by-products of pyrolysis are treated with a solid sorbent in the outer chamber of the desulfurization and denitrification apparatus to substantially desulfurize those gases. In a further aspect of the invention, the desulfurized gases, which contain nitrogen compounds, are combusted under controlled conditions to minimize the production of NO.sub.x gases.

摘要翻译： 一种用于通过热解使煤脱硫和反硝化并随后用固体吸附剂处理气态热解副产物以大大减少SO x气体释放至可接受水平的装置和方法。 在本发明的一个方面，煤在脱硫脱氮装置的内室中被热解，以除去其中所含的硫和氮化合物。 在本发明的另一方面，在脱硫和脱氮设备的外室中用固体吸附剂处理热解的气态副产物，以使这些气体基本上脱硫。 在本发明的另一方面，含有氮化合物的脱硫气体在受控条件下燃烧以最小化NOx气体的产生。