REDUCING MERCURY EMISSIONS FROM THE BURNING OF COAL
    71.
    发明申请
    REDUCING MERCURY EMISSIONS FROM THE BURNING OF COAL 有权
    减少煤炭燃烧产生的汞排放

    公开(公告)号:US20090117019A1

    公开(公告)日:2009-05-07

    申请号:US12351191

    申请日:2009-01-09

    Abstract: Processes and compositions are provided for decreasing emissions of mercury upon combustion of fuels such as coal. Various sorbent compositions are provided that contain components that reduce the level of mercury and/or sulfur emitted into the atmosphere upon burning of coal. In various embodiments, the sorbent compositions are added directly to the fuel before combustion; are added partially to the fuel before combustion and partially into the flue gas post combustion zone; or are added completely into the flue gas post combustion zone. In preferred embodiments, the sorbent compositions comprise a source of halogen and preferably a source of calcium. Among the halogens, iodine and bromine are preferred. In various embodiments, inorganic bromides make up a part of the sorbent compositions.

    Abstract translation: 提供了用于在诸如煤等燃料燃烧时减少汞的排放的方法和组合物。 提供各种吸附剂组合物,其含有降低在燃烧煤时排放到大气中的汞和/或硫的水平的成分。 在各种实施方案中,吸附剂组合物在燃烧之前直接加入到燃料中; 在燃烧之前被部分地添加到燃料中并部分地添加到烟道气后燃烧区域中; 或完全添加到烟道气后燃烧区。 在优选的实施方案中,吸附剂组合物包含卤素源,优选钙源。 在卤素中,优选碘和溴。 在各种实施方案中,无机溴化物构成吸附剂组合物的一部分。

    Humidity control device
    72.
    发明授权
    Humidity control device 有权
    湿度控制装置

    公开(公告)号:US07501011B2

    公开(公告)日:2009-03-10

    申请号:US10984080

    申请日:2004-11-09

    Abstract: A device for controlling relative humidity in an environment with a solidified humectant composition. The solidified humectant composition is made from a humectant salt, water, and a carrier. The solidified humectant may be formed into a tablet with the aid of a binder, or it may be contained within a thermoformed felt material, a sachet, or a water permeable canister. In a preferred embodiment, the sachet is made of a micro-perforated polyester/paper/polyethylene material. Preferred humectant salts include CaCl2, K2CO3, LiCl2, NaCl, K2SO4, and combinations thereof. A preferred embodiment of the present invention includes the use of one or more of: an antimicrobial agent, activated carbon, a volatile organic, a moisture adsorber and an oxygen absorber, in combination with the solidified humectant salt.

    Abstract translation: 用于在具有固化的保湿剂组合物的环境中控制相对湿度的装置。 固化的湿润剂组合物由保湿剂盐,水和载体制成。 固化的湿润剂可以借助于粘合剂形成片剂,或者它可以包含在热成型的毡材料,小药囊或透水性罐内。 在优选的实施方案中,小袋由微孔聚酯/纸/聚乙烯材料制成。 优选的保湿盐包括CaCl 2,K 2 CO 3,LiCl 2,NaCl,K 2 SO 4及其组合。 本发明的优选实施方案包括与固化的保湿盐组合使用抗微生物剂,活性炭,挥发性有机物,吸湿剂和氧吸收剂中的一种或多种。

    Sorbent for separation of carbon dioxide (CO2) from gas mixtures
    77.
    发明授权
    Sorbent for separation of carbon dioxide (CO2) from gas mixtures 有权
    用于从气体混合物中分离二氧化碳(CO2)的吸附剂

    公开(公告)号:US07067456B2

    公开(公告)日:2006-06-27

    申请号:US10359763

    申请日:2003-02-06

    Abstract: A reaction-based process has been developed for the selective removal of carbon dioxide (CO2) from a multicomponent gas mixture to provide a gaseous stream depleted in CO2 compared to the inlet CO2 concentration in the stream. The proposed process effects the separation of CO2 from a mixture of gases (such as flue gas/fuel gas) by its reaction with metal oxides (such as calcium oxide). The Calcium based Reaction Separation for CO2 (CaRS-CO2) process consists of contacting a CO2 laden gas with calcium oxide (CaO) in a reactor such that CaO captures the CO2 by the formation of calcium carbonate (CaCO3). Once “spent”, CaCO3 is regenerated by its calcination leading to the formation of fresh CaO sorbent and the evolution of a concentrated stream of CO2. The “regenerated” CaO is then recycled for the further capture of more CO2. This carbonation-calcination cycle forms the basis of the CaRS-CO2 process. This process also identifies the application of a mesoporous CaCO3 structure, developed by a process detailed elsewhere, that attains >90% conversion over multiple carbonation and calcination cycles. Lastly, thermal regeneration (calcination) under vacuum provided a better sorbent structure that maintained reproducible reactivity levels over multiple cycles.

    Abstract translation: 已经开发了一种基于反应的方法,用于从多组分气体混合物中选择性除去二氧化碳(CO 2 H 2),以提供与CO 2 CO 2相比耗尽的气流, 流中的入口CO 2 H 2浓度。 所提出的方法通过与金属氧化物(例如氧化钙)的反应来影响CO 2 CO 2从气体(例如烟道气/燃料气体)的混合物中的分离。 用于CO 2(CaS 2 CO 2)工艺的基于钙的反应分离包括将含CO 2的气体与氧化钙(CaO)接触, 在反应器中使得CaO通过形成碳酸钙(CaCO 3)而捕获CO 2。 一旦“消耗”,CaCO 3 3通过其煅烧再生,导致新鲜的CaO吸附剂的形成和CO 2的浓缩物流的逸出。 然后将“再生的”CaO再循环以进一步捕获更多的CO 2。 该碳酸化煅烧循环形成CaRS-CO 2 N 2工艺的基础。 该方法还确定了通过其他地方详细描述的方法开发的介孔CaCO 3 3结构的应用,其通过多次碳酸化和煅烧循环达到> 90%的转化率。 最后,在真空下的热再生(煅烧)提供了更好的吸附剂结构,其在多个循环中保持可重复的反应性水平。

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