【摘要】 从氢气的制备技术出发,分析甲醇制氢、煤制氢、天然气制氢、水电解制氢等氢气制备技术的优缺点及多晶硅生产工艺中的氢气消耗工序,并根据某多晶硅工厂实际生产数据,分析多晶硅生产过程中的氢气产出和消耗情况,最后针对氢化系统停车泄压、还原系统启停炉、公用辅助系统泄露等氢气消耗较大的环节提出优化建议,从而有效降低多晶硅生产成本。更多还原

【Abstract】 Starting from the preparation technology of hydrogen,the advantages and disadvantages of hydrogen preparation technologies such as methanol to hydrogen,coal to hydrogen,natural gas to hydrogen,and water electrolysis to hydrogen were analyzed,and the process of hydrogen consumption in polysilicon production process was analyzed. According to the actual data of existing plants,the hydrogen production and consumption in the process of polysilicon production were analyzed. The optimization suggestions were put forward for hydrogen system from the aspects of the shutdown pressure relief of hydrogenation system,the start and stop of reduction furnace and the public auxiliary system leakage,so as to effectively reduce the production cost of polysilicon.更多还原