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首页> 外文会议>2002 ASME (American Society of Mechanical Engineers) Turbo Expo, Jun 3-6, 2002, Amsterdam, the Netherlands >FEEDSTOCK BLENDING OF DOMESTIC FUELS IN GASIFIER/LIQUIFIERS
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FEEDSTOCK BLENDING OF DOMESTIC FUELS IN GASIFIER/LIQUIFIERS

机译：气化炉/液化器中国内燃料的饲料混合

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In early studies addressing national energy/environmental (EE) problems we concluded that co-utilization of domestic fuels can significantly reduce national reliance on imported fuels, mitigate NOx, SOx, CO_2 and other undesirable emissions and provide valuable waste disposal services. Co-firing of coal and biomass for steam turbine power generation is a near-term co-utilization approach that can make use of existing facilities with relatively minor modifications. However, co-gasification by providing fuel for more efficient combustion turbines and fuel cells and co-liquification to produce transportation fuels have greater long-term EE potential. The development of optimum thermo-chemical co-conversion systems can be fostered by developing a common systematics for the pyrolysis of biomass and coal. Towards this goal we have used the large data bases from ASTM standard ultimate and proximate analyses for all fuels along natures coalification path from biomass to peat, lignite, bituminous and anthracite coal. With this composite data we find systematics in the weight percentages of carbon, hydrogen, total volatiles, fixed carbon and feedstock HHVs vs the weight percentage of oxygen. To meet the need for knowledge of the volatile constituents we have used sparsely available slow pyrolysis data in the literature and our own data to further develop a plausible semi-empirical model (SEM) that relates feedstock and product compositions. We here extend these analytic correlations to lower temperatures with the help of CCTL measurements of yields from the pyrolysis of rice hulls. We have recently applied this SEM to exam the systematic yields of a short list (SL) of products (five gases and five liquids) vs [O], the weight percentage of oxygen in the feedstock. Here anchored to the rice hull data we use our analytical relationships to estimate the yields of a long list (LL) of products including many organic compounds that are known to be slow pyrolysis products of coals and biomass. These relations are put forth as a heuristic challenge to ourselves and to specialists in biomass and coal pyrolysis to obtain more and better data and to seek improved engineering formulas that are needed to advanced co-utilization technology. Then energy debtor nations could utilize all of their available domestic fuels, including opportunity fuels, to mitigate their national EE problems. These preliminary results point to a path towards the development of a co-utilization science and technology for optimizing feedstock blends in many co-firing, co-gasifying or co-liquifying applications.
机译：在解决国家能源/环境（EE）问题的早期研究中，我们得出结论，共同利用国内燃料可以大大减少国家对进口燃料的依赖，减少NOx，SOx，CO_2和其他不良排放，并提供有价值的废物处理服务。煤和生物质的联合燃烧用于蒸汽轮机发电是一种近期的联合利用方法，可以利用现有设备进行较小的改动。但是，通过为更高效的燃气轮机和燃料电池提供燃料进行共气化以及生产运输燃料的共液化具有更大的长期EE潜力。可以通过开发用于生物质和煤热解的通用系统来促进最佳热化学共转化系统的开发。为了实现这一目标，我们已使用ASTM标准最终分析和近似分析的大型数据库，用于从生物质到泥炭，褐煤，烟煤和无烟煤的自然煤化路径中的所有燃料。通过此综合数据，我们发现碳，氢，总挥发物，固定碳和原料HHV的重量百分比与氧气的重量百分比之间的系统关系。为了满足对挥发性成分知识的需求，我们在文献中使用了稀疏的慢速热解数据，并使用我们自己的数据来进一步开发与原料和产品成分相关的合理的半经验模型（SEM）。我们在这里借助CCTL测量稻壳热解的产量，将这些分析相关性扩展到更低的温度。我们最近已使用该SEM来检查产品（五种气体和五种液体）的简短列表（SL）与[O]（原料中氧气的重量百分比）的系统产率。在这里，基于稻壳数据，我们使用分析关系来估计一长串产品的产量，其中包括许多已知为煤和生物质的缓慢热解产物的有机化合物。提出这些关系是对我们自己以及对生物质和煤热解专家的启发式挑战，以获取更多更好的数据，并寻求先进的联合利用技术所需的改进的工程公式。然后，能源债务国可以利用其所有可用的国内燃料（包括机会燃料）减轻其国家EE问题。这些初步结果指出了在多种共烧，共气化或共液化应用中优化混合原料的共同利用科学技术的道路。

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