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2. 发明申请

WO2013046228A1 A PROCESS FOR GENERATION OF HYDROGEN AND SYNGAS 审中-公开
标题翻译：氢和石墨的生成方法
公开(公告)号：WO2013046228A1
公开(公告)日：2013-04-04
申请号：PCT/IN2012/000576
申请日：2012-09-03
申请人： COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH , RAYALU, Sadhana, Suresh , CHAKRABARTI, Tapan , JOSHI, Meenal, Vivek , MANGRULKAR, Priti, Ashok , LABHSETWAR, Nitin, Kumar , YADAV, Renu, Mahendra, Singh , PRABHU, Chandan , WATE, Satish, Ramchandra
发明人： RAYALU, Sadhana, Suresh , CHAKRABARTI, Tapan , JOSHI, Meenal, Vivek , MANGRULKAR, Priti, Ashok , LABHSETWAR, Nitin, Kumar , YADAV, Renu, Mahendra, Singh , PRABHU, Chandan , WATE, Satish, Ramchandra
IPC分类号： C01B31/18 , C01B3/06
CPC分类号： C12P3/00 , B01J35/004 , C01B3/06 , C01B32/40 , C01B32/60 , Y02E60/364
摘要： The present invention is related to a process for generation of hydrogen and syngas based on biomimetic carbonation and photocatalysis. A path breaking way has been developed for generation of solar fuels in specific hydrogen by coupling biomimetic carbonation with photocatalysis. Efforts are being made worldwide to mimic the reaction for fixation of anthropogenic CO2 into calcium carbonate using carbonic anhydrase (CA) as a biocatalyst. CA is being employed to accelerate the rate of hydration of CO2 to form carbonate ions and proton. Presently carbonate is being precipitated from aqueous solution as calcium carbonate given a suitable saturation of calcium and carbonate ions by addition of appropriate buffer. A major breakthrough in the area of generation of solar fuels like hydrogen has been achieved by coupling biomimetic carbonation with photocatalysis. This approach may prove to be a revolutionary technical advancement required for hydrogen economy demanding carbon neutral hydrogen production. Also the production of hydrogen in addition to carbonates as end products during biomimetic carbonation may make the process commercially viable to be adopted by industries emitting carbon dioxide. The carbonate rich stream has been photocatalytically reduced to formaldehyde. This breakthrough thus opens new horizons in the area of carbon sequestration by virtue of the fact that end product of carbon sequestration is not only environmentally benign product of calcite but it would lead to the generation of clean energy including hydrogen, methane and methanol. Maximum hydrogen evolution has been observed up to 101.14 μmoles/mg of,free CA, 156.8 μmoles/mg of immobilised CA and 101.14 μmoles/mg of CA 6684.5 μmoles/mg of stabilised CA using TiO2/Zn/Pt as photocatalyst. The problem of using Zn as a metal donor has been overcome by illuminating the system. Hydrogen evolution to the tune of 84 μmoles/mg of CA has been observed for system with Zn as metal donor in the presence of Pt as co-catalyst with illumination.
摘要翻译：本发明涉及基于仿生碳酸化和光催化的产生氢气和合成气的方法。已经开发了一种通过将仿生碳酸化与光催化耦合而在特定氢中产生太阳能燃料的途径。全球正在努力模拟使用碳酸酐酶（CA）作为生物催化剂将人为二氧化碳固定在碳酸钙中的反应。 CA被用来加速CO2的水化速率，形成碳酸根离子和质子。目前，通过加入适当的缓冲液，碳酸钙从水溶液中以碳酸钙沉淀出来，给出适当的钙和碳酸根离子饱和度。通过将仿生碳酸化与光催化耦合，已经实现了诸如氢的太阳能燃料的生成领域的重大突破。这种方法可能被证明是氢气经济要求碳中和氢生产所需的革命性的技术进步。此外，在仿生碳酸化过程中除了碳酸酯作为终产物之外，氢的生产可使商业上可行的方法被排放二氧化碳的工业所采用。富碳酸气流已被光催化还原成甲醛。因此，这一突破在碳封存领域开辟了新的视野，因为碳封存的最终产品不仅是方解石的环保产品，而且还将导致产生包括氢，甲烷和甲醇在内的清洁能源。已经观察到最高析氢量，使用TiO 2 / Zn / Pt作为光催化剂，游离CA，156.8mg / mol固定化CA和101.14mg / mol CA 6684.5mumoles / mg稳定化的CA。通过照射该系统已经克服了使用Zn作为金属给体的问题。在作为辅助催化剂的Pt存在下，Zn作为金属供体的体系已经观察到氢的析出达到84mg / mg的CA。

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