工业合成SiC的节能提质技术及CO收集

Development of Energy-saving and Quality-enhancing Technology and CO Gas-collecting in SiC Industrial Synthesis

碳化硅生产是高耗能行业。本文在简述各种炉体改进和工艺改进的基础上,详细阐述了多热源工业合成碳化硅新技术的节能降耗提质理论及CO回收技术。工业实践表明,三热源合成炉较单热源炉产量提高48.1％,特、一级品率提高30％,节能10％以上,杜绝了单热源生产中频繁喷炉事故,炉体易实现大型化。多热源合成炉炉气中CO含量高达92％,利用新型高温涂塑布气体收集装置收集CO,可提纯利用,生产甲醇进而生产洁净燃料二甲醚。研究成果对于碳化硅工业生产的环境污染控制和提高经济效益具有重要意义。

SiC synthesis is a high-energy-costing industry. In this paper the theory of energy-saving, consumption-reducing and quality-enhancing in SiC industrial synthesis by multi-heat-source furnace and technology of collecting CO gas are reported in detail. Compared with single-heat-source furnace, the SiC output of multi-heat-source furnace increased by 48. 1% ,high grade SiC yield increased by 30% , and consumed energy reduced by 10%. Frequent spouting of furnace is avoided. The furnace volume enlargement is become easier. The CO content of the multi-heat-source furnace is up to 92%. CO can be collected by the new gas collecting equipment which is endurable to temperature and corrosion. The collected CO can be purified to produce methanol and furtherly to produce clear fuel dimethyl ether. This research achievement is beneficial for SiC industries to control environmental pollution and enhance economic benefit.