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    High purity, high pressure hydrogen production with in-situ CO2 and sulfur capture in a single stage reactor
    3.
    发明授权
    High purity, high pressure hydrogen production with in-situ CO2 and sulfur capture in a single stage reactor 有权
    高纯度，高压氢气生产，在单级反应器中原位二氧化碳和硫捕获

    公开(公告)号：US07837975B2

    公开(公告)日：2010-11-23

    申请号：US12409843

    申请日：2009-03-24

    申请人： Mahesh V. Iyer ,  Liang-Shih Fan ,  Shwetha Ramkumar

    发明人： Mahesh V. Iyer ,  Liang-Shih Fan ,  Shwetha Ramkumar

    IPC分类号： C01B3/12 ,  C01B3/16 ,  C01B3/22 ,  C01B3/24 ,  C01B3/26

    CPC分类号： C01B3/38 ,  C01B3/386 ,  C01B3/56 ,  C01B2203/0233 ,  C01B2203/0238 ,  C01B2203/0261 ,  C01B2203/0283 ,  C01B2203/0425 ,  C01B2203/043 ,  C01B2203/0465 ,  C01B2203/0475 ,  C01B2203/0485 ,  C01B2203/1041 ,  C01B2203/86 ,  C10J2300/093 ,  C10J2300/0996 ,  C10J2300/1659 ,  C10K3/04 ,  Y02P30/30

    摘要： A process for producing hydrogen, comprising the steps of: (a) gasifying a fuel into a raw synthesis gas comprising CO, hydrogen, steam and sulfur and halide contaminants in the form of H2S, COS and HX, where X is a halide; (b) passing the raw synthesis gas through a water gas shift reactor (WGSR) into which CaO and steam are injected, the CaO reacting with the shifted gas to remove CO2, sulfur and halides in a solid-phase calcium-containing product comprising CaCO3, CaS and CaX2; (c) separating the solid-phase calcium-containing product from an enriched gaseous hydrogen product; and (d) regenerating the CaO by calcining the solid-phase calcium-containing product at a condition selected from the group consisting of: in the presence of steam, in the presence of CO2, in the presence of synthesis gas, in the presence of H2 and O2, under partial vacuum, and combinations thereof. The CaO may have a surface area of at least 12.0 m2/g and a pore volume of at least 0.015 cm3/g, the CaO having a sorption capacity of at least about 70 grams of CO2 per kilogram of CaO.

    摘要翻译： 一种生产氢气的方法，包括以下步骤：（a）将燃料气化成包含CO，氢气，蒸气和硫的原料合成气和H2S，COS和HX形式的卤化物污染物，其中X是卤化物; （b）将原始合成气通过注入CaO和蒸汽的水煤气变换反应器（WGSR），CaO与转移的气体反应以除去含CaCO3的固相含钙产物中的CO 2，硫和卤化物 ，CaS和CaX2; （c）从富集的气态氢产物中分离固相含钙产物; 和（d）通过在选自以下的条件下煅烧所述固相钙含量产物来再生CaO：在蒸气存在下，在CO 2的存在下，在合成气的存在下， H2和O2，以及它们的组合。 CaO可以具有至少12.0m 2 / g的表面积和至少0.015cm 3 / g的孔体积，CaO具有至少约70克CO 2 /千克CaO的吸附能力。

    HIGH PURITY, HIGH PRESSURE HYDROGEN PRODUCTION WITH IN-SITU CO2 AND SULFUR CAPTURE IN A SINGLE STAGE REACTOR
    6.
    发明申请
    HIGH PURITY, HIGH PRESSURE HYDROGEN PRODUCTION WITH IN-SITU CO2 AND SULFUR CAPTURE IN A SINGLE STAGE REACTOR 有权
    单级二次反应器中的高纯度，高压氢生产与二氧化碳和硫吸收

    公开(公告)号：US20090263316A1

    公开(公告)日：2009-10-22

    申请号：US12409843

    申请日：2009-03-24

    申请人： Mahesh V. Iyer ,  Liang-Shih Fan ,  Shwetha Ramkumar

    发明人： Mahesh V. Iyer ,  Liang-Shih Fan ,  Shwetha Ramkumar

    IPC分类号： C01B3/58

    CPC分类号： C01B3/38 ,  C01B3/386 ,  C01B3/56 ,  C01B2203/0233 ,  C01B2203/0238 ,  C01B2203/0261 ,  C01B2203/0283 ,  C01B2203/0425 ,  C01B2203/043 ,  C01B2203/0465 ,  C01B2203/0475 ,  C01B2203/0485 ,  C01B2203/1041 ,  C01B2203/86 ,  C10J2300/093 ,  C10J2300/0996 ,  C10J2300/1659 ,  C10K3/04 ,  Y02P30/30

    摘要： A process for producing hydrogen, comprising the steps of: (a) gasifying a fuel into a raw synthesis gas comprising CO, hydrogen, steam and sulfur and halide contaminants in the form of H2S, COS and HX, where X is a halide; (b) passing the raw synthesis gas through a water gas shift reactor (WGSR) into which CaO and steam are injected, the CaO reacting with the shifted gas to remove CO2, sulfur and halides in a solid-phase calcium-containing product comprising CaCO3, CaS and CaX2; (c) separating the solid-phase calcium-containing product from an enriched gaseous hydrogen product; and (d) regenerating the CaO by calcining the solid-phase calcium-containing product at a condition selected from the group consisting of: in the presence of steam, in the presence of CO2, in the presence of synthesis gas, in the presence of H2 and O2, under partial vacuum, and combinations thereof. The CaO may have a surface area of at least 12.0 m2/g and a pore volume of at least 0.015 cm3/g, the CaO having a sorption capacity of at least about 70 grams of CO2 per kilogram of CaO.

    摘要翻译： 一种生产氢气的方法，包括以下步骤：（a）将燃料气化成包含CO，氢气，蒸气和硫的原料合成气和H2S，COS和HX形式的卤化物污染物，其中X是卤化物; （b）将原始合成气通过注入CaO和蒸汽的水煤气变换反应器（WGSR），CaO与转移的气体反应以除去含CaCO3的固相含钙产物中的CO 2，硫和卤化物 ，CaS和CaX2; （c）从富集的气态氢产物中分离固相含钙产物; 和（d）通过在选自以下的条件下煅烧所述固相钙含量产物来再生CaO：在蒸气存在下，在CO 2的存在下，在合成气的存在下， H2和O2，以及它们的组合。 CaO可以具有至少12.0m 2 / g的表面积和至少0.015cm 3 / g的孔体积，CaO具有至少约70克CO 2 /千克CaO的吸附能力。

    Separation of carbon dioxide (CO2) from gas mixtures by calcium based reaction separation (CaRS-CO2) process
    10.
    发明申请
    Separation of carbon dioxide (CO2) from gas mixtures by calcium based reaction separation (CaRS-CO2) process 有权
    通过钙基反应分离（CaRS-CO2）方法从气体混合物中分离二氧化碳（CO 2）

    公开(公告)号：US20060039853A1

    公开(公告)日：2006-02-23

    申请号：US10359763

    申请日：2003-02-06

    申请人： Liang-Shih Fan ,  Himanshu Gupta

    发明人： Liang-Shih Fan ,  Himanshu Gupta

    IPC分类号： C01F11/02

    CPC分类号： B01D53/62 ,  B01D2251/402 ,  B01D2251/404 ,  B01J20/041 ,  B01J20/043 ,  B01J20/28057 ,  B01J20/28069 ,  B01J20/28088 ,  B01J20/3433 ,  B01J20/3483 ,  C01F11/06 ,  C01P2002/72 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/17 ,  C04B2/10 ,  Y02C10/04 ,  Y02C10/08 ,  Y02P20/152 ,  Y02P40/42

    摘要： 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.

    摘要翻译： 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。