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    • 7. 发明申请
    • IMPROVED PROCESS FOR PRODUCING HYDROGEN
    • 生产氢气的改进方法
    • WO2009158385A2
    • 2009-12-30
    • PCT/US2009/048401
    • 2009-06-24
    • HYDROGEN GENERATION INC.SMITH, John, R.VAN STEEKISTE, Thomas, H.WANG, Xiao-gang
    • SMITH, John, R.VAN STEEKISTE, Thomas, H.WANG, Xiao-gang
    • C01B3/06B01J23/72B01J21/04
    • C01B3/042B01J19/127B01J23/06B01J23/14B01J23/18B01J23/30B01J23/72B01J23/74B01J27/0573B01J27/14B01J35/0013B01J35/004B01J35/1014B01J37/08B01J2219/0877B01J2219/0892C01B13/0207Y02E60/364Y02P20/134Y02P20/135
    • The present invention relates to the conversion of water into hydrogen and oxygen, and more particularly to a conversion of water into hydrogen and oxygen using sunlight and an inorganic catalyst. More specifically, the invention relates to systems and processes for generating hydrogen molecules from sunlight and water, such as a process comprising the steps of: i) contacting the water with nanoparticles of an inorganic photocatalyst compound in a reaction zone of a reaction chamber; ii) concentrating sunlight with an optical intensifier such that the intensity is increased by a factor greater than 2; iii) heating the reaction zone to one or more reaction temperatures greater than 140°C using the concentrated sunlight; and iv) exposing water in the heated reaction zone and in the presence of the inorganic photocatalyst compound, while at the one or more reaction temperatures, to the concentrated sunlight so that a reaction occurs that generates hydrogen molecules from the water; wherein the photocatalyst includes an element selected from Cu, Al, Ti, Ga, Cd, Zn, W, Fe, Sn, Si, or any combination thereof, the water is in the form of water vapor, the step of heating the reaction zone includes a step of converting the sun light into thermal energy, the reaction zone is free of any electrode for a photoelectrochemical process; and wherein the photocatalyst is characterized by one of the following: (1 ) the nanoparticles are calcined nanoparticles; (2) the nanoparticles includes an element selected from Cu, Al, Ti, Ga, Cd, Zn, W, Fe, Sn, Si, or nay combination thereof; or (3) both (1 ) and (2).
    • 本发明涉及将水转化为氢和氧,更具体地涉及使用阳光和无机催化剂将水转化成氢和氧。 更具体地说,本发明涉及从太阳光和水产生氢分子的系统和方法,例如包括以下步骤的方法:i)在反应室的反应区中使水与无机光催化剂化合物的纳米颗粒接触; ii)用光学增强器浓缩太阳光,使得强度增加大于2的因子; iii)使用集中的阳光将反应区域加热至大于140℃的一个或多个反应温度; 以及iv)在所述加热的反应区和所述无机光催化剂化合物的存在下,在所述一个或多个反应温度下暴露于浓缩的阳光,从而发生从水中产生氢分子的反应; 其中所述光催化剂包括选自Cu,Al,Ti,Ga,Cd,Zn,W,Fe,Sn,Si或其任何组合的元素,所述水是水蒸气的形式,加热反应区 包括将太阳光转换成热能的步骤,反应区没有用于光电化学过程的任何电极; 并且其中所述光催化剂的特征在于以下之一:(1)纳米颗粒是煅烧纳米颗粒; (2)纳米颗粒包括选自Cu,Al,Ti,Ga,Cd,Zn,W,Fe,Sn,Si或其组合的元素; 或(3)(1)和(2)。