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    • 5. 发明申请
    • SEMICONDUCTOR LASER
    • 半导体激光器
    • US20110128985A1
    • 2011-06-02
    • US12734665
    • 2008-10-17
    • Tsuguki NomaMiroru MurayamaSatoshi UchidaTsutomu Ishikawa
    • Tsuguki NomaMiroru MurayamaSatoshi UchidaTsutomu Ishikawa
    • H01S5/026
    • H01S5/223H01S5/221H01S5/2219H01S5/2227H01S5/2231H01S5/34326
    • Provided is a semiconductor laser which has a low operating current and stably oscillates even for high-temperature output. The semiconductor laser is provided with a substrate (10); an n-type clad layer (12) arranged on the substrate (10); an active layer (13) arranged on the n-type clad layer (12); a p-type clad layer (14), which is arranged on the active layer (13) and composed of a compound containing Al and has a stripe-shaped ridge structure to be a current channel; a current block layer (16), which is arranged on the surface of the p-clad layer (14) excluding an upper surface of the ridge structure and composed of a compound containing Al and has an Al composition ratio not more than that of the p-type clad layer (14); and a light absorption layer (17), which is arranged on the current block layer (16) and absorbs light at the laser oscillation wavelength.
    • 提供了即使对于高温输出也具有低工作电流并稳定地振荡的半导体激光器。 半导体激光器设置有基板(10); 布置在所述基板(10)上的n型覆盖层(12); 布置在所述n型覆层(12)上的有源层(13); p型覆盖层(14),其配置在有源层(13)上,由含有Al的化合物构成,具有条状的脊状结构成为电流通道; 布置在p包覆层(14)的表面上的电流阻挡层(16),除了脊结构的上表面,并且由含Al的化合物构成,Al组成比不大于 p型覆层(14); 以及布置在当前阻挡层(16)上并吸收激光振荡波长的光的光吸收层(17)。
    • 9. 发明授权
    • Method for producing methanol by use of nuclear heat and power
generating plant
    • 使用核发电厂生产甲醇的方法
    • US5479462A
    • 1995-12-26
    • US209921
    • 1993-11-03
    • Yasuhiro YamauchiYuuji TokitaNobuaki MurakamiKatsuhiko TakitaYasushi MoriKensuki MuraishiShozo KanekoSatoshi UchidaNobuhiro UkeguchiSeiichi Shirakawa
    • Yasuhiro YamauchiYuuji TokitaNobuaki MurakamiKatsuhiko TakitaYasushi MoriKensuki MuraishiShozo KanekoSatoshi UchidaNobuhiro UkeguchiSeiichi Shirakawa
    • C07C29/151C25B1/04G21D9/00
    • C25B1/04C07C29/1516C07C29/1518Y02E60/366Y02E70/10
    • Provided herein is a process for producing methanol which was developed to reduce the emission of carbon dioxide which is responsible for global warming. The process involves the steps of generating steam by the use of nuclear heat of a high-temperature gas-cooled nuclear reactor, decomposing the steam into hydrogen by means of a steam electrolyzer, and synthesizing methanol from this hydrogen and carbon dioxide obtained from a carbon dioxide source. The process also involves the steps of converting carbon dioxide and hydrogen into carbon monoxide and steam by means of a reverse shift reactor, forming hydrogen and carbon monoxide of almost the same composition as the conventional one, and reacting said hydrogen and carbon monoxide into methanol by means of a methanol synthesis column. The process permits the use of an existing methanol production facility. The process may be modified such that the gasified gas composed of carbon monoxide, carbon dioxide, and hydrogen is mixed with hydrogen gas generated by the steam electrolyzer, and the resulting mixed gas is converted into methanol. Also, a power generating plant is provided in which oxygen enriched air, generated by the steam electrolyzer using nuclear heat of the high-temperature gas-cooled nuclear reactor, is used as combustion air.
    • 本文提供了一种生产甲醇的方法,其被开发用于减少负责全球变暖的二氧化碳的排放。 该方法包括通过使用高温气冷核反应堆的核热产生蒸汽的步骤,通过蒸汽电解器将蒸汽分解成氢气,并从该氢气中合成甲醇和从碳获得的二氧化碳 二氧化物源。 该方法还涉及通过反向转换反应器将二氧化碳和氢气转化成一氧化碳和蒸汽的步骤,形成与常规化合物几乎相同组成的氢气和一氧化碳,并通过以下方式使所述氢气和一氧化碳反应成甲醇: 甲醇合成塔的方法。 该过程允许使用现有的甲醇生产设施。 该方法可以被修改,使得由一氧化碳,二氧化碳和氢气组成的气化气体与由蒸汽电解器产生的氢气混合,并将所得混合气体转化为甲醇。 此外,提供了一种发电厂,其中使用由使用高温气冷核反应堆的核热的蒸汽电解器产生的富氧空气用作燃烧空气。