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

废煤及生物质有效利用回收能源及气化基础研究

基本信息

批准号：
15404004
负责人：
WANG Qingyue
金额：
$ 8.45万
依托单位：
Saitama University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2005
项目状态：
已结题

项目摘要

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

最近，随着中国经济发展的显着发展，所需能源的增长增加了。应对这种趋势，中国提出了煤炭，天然气生产和石油进口的增量。 CO_2（二氧化碳，温室气体）的高发射物增加了大量化石燃料是至关重要的问题。此外，由于稀缺的可用性，自动点火和水污染，适当的处理和有效的煤炭技术，由于含有高灰分的含量，高硫磺含量和低收入价值，因此在煤炭开采和清洁时被丢弃的废煤被丢弃。因此，中国已关注有效利用废煤和能源回收作为一种新能源。这项研究的目的和目标是有效利用废煤。我们将废煤生物量制作为固体燃料，并就CO进行了基础研究……更多的Mbustion测试和气化技术。结果，建议废物煤生物量的压缩强度超过中国内部运输标准，在中国的平民使用，良好的燃烧质量和降低氧化硫硫磺。此外，这意味着可以将废煤生物量的煤球体作为固体燃料传播，因为与常规的煤生物 - 生物质量煤球相比，废物煤生物量煤球的成本较低。而且，随着关于废煤生物量煤油的气化技术的基础研究，建议气化的反应性是进行性的，硫化氢的固定，并且与原始废料的气化相比，产生的气体燃料的热量增加了。我们认为这些作用来自添加生物质，这可能导致碳含量的增加以及高表面积和催化金属（例如K，Na和Ca），其中包含在生物质和氢氧化钙中，这是硫固化剂。此外，还发现，当制备废物煤生物量的煤球时，通过合适的增加煤压力提高了气化的反应性。这些基础研究表明，通过气化将废煤生物量煤厂转化为清洁气体燃料的可能性。这些研究的结果表明，将废煤生物量煤液应用于固体燃料或天然气燃料的能源，可能会导致废煤的回收能量和有效利用技术。