共查询到19条相似文献,搜索用时 62 毫秒
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微藻生物质可再生能源的开发利用 总被引:42,自引:5,他引:42
藻类具有生物量大、生长周期短、易培养以及含有较高的脂类等特点,是制备生物质液体燃料的良好材料。微藻热解所得的生物质燃油热值高达33MJ/kg,是木材或农作物秸秆的1.6倍。通过调节微藻的培养条件和脂类含量,可获得高品质、高热值的生物质燃油。 相似文献
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农村能源是当今世界上面临的重大问题之一,特别是发展中国家,80%以上人口居住在农村。我市1995年底总人口697.9万人,其中农村人口601.9万人,占总人口的86.2%,农村社会总产值726亿元,占全市生产总值的60.6%。农村能源情系千家万户,与人民群众的生产、生活息息相关,搞好农村新能源的综合开发,充分合理利用能源资源,改善农村用能结构,提高农村用能水平,对促进我市经济的持续发展有着深远的意义。1温州市农村能源开发利用现状及存在问题1.1现状我市常现能源资源贫乏,无煤、无油、缺电。商品能源不足,严重制约了经济的发展… 相似文献
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生物质能源是一种清洁环保的新能源。"十一五规划纲要"中明确提出要把生物质能源发展作为国家能源战略的重要组成部分。开发利用燃料油植物,生产可再生的生物质能源,具有重要的战略意义。本文介绍了国内外能源发展研究现状与趋势,分析了产业发展中存在的问题,探讨了我国生物质能源产业发展对策。 相似文献
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云南生物质能的开发利用现状与未来前景分析 总被引:3,自引:1,他引:3
云南作为中国的能源大省,各种能源资源的储量都十分丰富,而且以可再生能源见长,尤其生物质能资源非常丰富,发展前景广阔。这对解决云南省农村能源短缺和恢复生态平衡、保证能源安全非常必要。 相似文献
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The feasibility of converting agricultural and forestry residues to energy is evaluated based on a county-by-county inventory for the contiguous United States. The impact of this energy resource on the U.S. energy system is forecast using the SRI energy model. 相似文献
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European biomass resource potential and costs 总被引:1,自引:0,他引:1
The objective of this study is to assess the European (EU27+ and Ukraine) cost and supply potential for biomass resources. Three methodological steps can be distinguished (partly based on studies explained elsewhere in this volume) (i) an evaluation of the available ‘surplus’ land, (ii) a modeled productivity and (iii) an economic assessment for 13 typical bioenergy crops. Results indicate that the total available land for bioenergy crop production – following a ‘food first’ paradigm – could amount to 900 000 km2 by 2030. Three scenarios were constructed that take into account different development directions and rates of change, mainly for the agricultural productivity of food production. Feedstock supply of dedicated bioenergy crop estimates varies between 1.7 and 12.8 EJ y?1. In addition, agricultural residues and forestry residues can potentially add to this 3.1–3.9 EJ y?1 and 1.4–5.4 EJ y?1 respectively. First generation feedstock supply is available at production costs of 5–15 € GJ?1 compared to 1.5–4.5 € GJ?1 for second generation feedstocks. Costs for agricultural residues are 1–7 € GJ?1 and forestry residues 2–4 € GJ?1. Large variation exists in biomass production potential and costs between European regions, 280 (NUTS2) regions specified. Regions that stand out with respect to high potential and low costs are large parts of Poland, the Baltic States, Romania, Bulgaria and Ukraine. In Western Europe, France, Spain and Italy are moderately attractive following the low cost high potential criterion. 相似文献
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在生物质气化过程中,由于焦油的产生以及生成的小分子可燃气体较少的特点,影响了生物质气化技术的进一步推广和应用。使用催化剂是一种可以提高小分子可燃气体品位、提高生物质利用效率、减少焦油产生的经济可行的办法。文中叙述了生物质气化催化剂的研究概况,并着重介绍了各种催化剂使用的效果。 相似文献
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Solar pyrolysis of pine sawdust, peach pit, grape stalk and grape marc was conducted in a lab-scale solar reactor for producing fuel gas from these agricultural and forestry by-products. For each type of biomass, whose lignocellulose components vary, the investigated parameters were the final temperature (in the range 800°C–2000 °C) and the heating rates (in the range 10–150 °C/s) under a constant sweep gas flow rate of 6 NL/min. The parameter influence on the pyrolysis product distribution and syngas composition was studied. The experimental results indicate that the gas yield generally increases with the temperature and heating rate for the various types of biomass residues, whereas the liquid yield progresses oppositely. Gas yield as high as 63.5wt% was obtained from pine sawdust pyrolyzed at a final temperature of 2000 °C and heating rate of 50 °C/s. This gas can be further utilized for power generation, heat or transportable fuel production. 相似文献
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