Basic study on recovery energy and gasification with effective utilization of waste coal and biomasses

近年来，随着中国经济的显著发展，能源需求也在增加。针对这一趋势，中国建议增加煤炭和天然气产量，增加石油进口。随着化石燃料消耗量的增加，二氧化碳(二氧化碳，一种温室气体)的高排放是一个关键问题。另外，由于煤炭资源稀缺、占地面积大、自燃污染大、水污染大等原因，煤炭开采和选煤过程中产生的高灰分、高硫、低热值的废煤被丢弃，这就需要一种合适的废煤处理和有效利用技术。因此，中国一直关注废煤的高效利用和能源回收作为一种新能源。本研究的目的和目标是有效利用废煤。以废煤-生物质成型燃料为固体燃料，对co-…进行了基础研究。更多的燃烧试验和气化技术。结果表明，废煤-生物质型煤的抗压强度超过中国内运标准，热值超过中国民用标准，燃烧质量好，硫氧化物还原。此外，由于废煤-生物质型煤的成本比常规煤-生物质型煤低，因此将废煤-生物质型煤作为固体燃料进行推广是可能的。作为废煤-生物质型煤气化技术的基础研究，认为生物质型煤的气化反应活性是递进的，硫化氢是固定的，所产生的气体燃料的热值比其原始煤的气化要高。我们认为这些影响来自于生物质的添加可能导致碳含量的增加和高比表面积，以及生物质中含有的K、Na、Ca等催化金属和作为固硫剂的氢氧化钙。另外，在制备废煤-生物质成型燃料时，适当增加成型压力可以提高气化反应的活性。这些基础研究表明，废煤-生物质成型燃料通过气化转化为清洁气体燃料是可能的。这些研究结果表明，废煤-生物质成型燃料作为固体燃料或气体燃料的能源具有应用的可能性，并可能导致废煤的能源回收和有效利用技术。较少

Recently, energy demanded has increased with significantly development of economy in China. Respond to this tendency, China has proposed increment of coal and natural gas production and oil import. The high emission of CO_2 (carbon dioxide, a greenhouse gas) with increasing consumption of a large amount of fossil fuels is critical issue. Moreover, waste coal which is discarded coal when coal extraction and cleaning, because of having high-ash content, high-sulfur content and low-calorific value is discarded since the scarce availability, occupancy of vast area of land and air pollution by autogenous ignition and water pollution, an appropriate treatment and effective utilizing technology of waste coal is required. Therefore, China has paid the attention to efficient use of waste coal and energy recovery as a new energy. The purposes and objectives of this study are the efficient use of waste coal. We made waste coal-biomass briquette as solid fuel and conducted basic research on the co … More mbustion test and gasification technology. As the result, it was suggested that waste coal-biomass briquette had compression strength exceeding standard of internal transport in China, calorific value exceeding civilian use in China, good burning quality and reduction of sulfur oxide. In addition, it was implied that dissemination of waste coal-biomass briquette as a solid fuel was possible because the lower cost of waste coal-biomass briquette than the routine coal-biomass briquette. And as basic research about gasification technology of waste coal-biomass briquette, it was suggested that reactivity of gasification was progressive, hydrogen sulfide was fixed, and calorific value of gas fuel produced was increased in comparison with gasification of its original waste coal. We thought that these effects came from addition of biomass which may cause the increment of carbon content and high surface area and catalytic metals such as K, Na and Ca contained in biomass and calcium hydroxide which is as a sulfur-fixation agent. In addition, it was found that the reactivity of gasification was improved by the suitable increasing briquetting pressure when waste coal-biomass briquette was prepared. These basic researches implied that possibility of converting waste coal-biomass briquette to clean gas fuel by gasification. These study results indicate the possibility of the application of waste coal-biomass briquette as an energy resource of the solid fuel or the gas fuel, and may lead to the recovery energy and effective utilization technology of waste coal. Less