褐煤利用技术现状

煤炭是我国最重要的化石能源,其中褐煤资源在我国分布广泛,储量较多。基于我国的能源结构特点和褐煤的煤质特性,论述了褐煤在发展煤制天然气、煤制油、煤热电联产等现代煤化工项目的优势与利用技术,褐煤抽提技术的应用与发展,其中着重介绍了无灰煤技术,其产品具有无灰无水、高发热量等优良性能。还有以褐煤为原料制备新型材料方面的应用,包括褐煤制备吸附剂以及粉煤灰的有效利用,最后提出了我国褐煤现代煤化工以及褐煤高附加值利用应向低能耗、清洁化方向发展。 Coal is the most important fossil energy in China.As one of the large scale reserves minerals,lignite is widespread.Based on the energy structure characteristics and the properties of lignite,the advantages and relevant utilization technologies in modern coal chemical industry was described,including coal gasification,coal liquefaction,co-generation of heat and power,meanwhile,the application and development of lignite extraction technology was introduced.The paper focused on the ash-free coal preparation technology,the products had the following excellent properties of ash-free,water-free and high calorific value.The lignite also could be used to prepare new materials,including adsorbent preparation and fly ash modification.At last,the paper pointed out that low-energy-consumption and clean production was the development prospect of modern coal chemical industry and lignite high-value utilization