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生物质压缩成型燃料技术研究综述 总被引:19,自引:1,他引:18
1 引言 随着农业和农村经济的发展,生产过程中产生的废弃物不断增加,浪费现象加剧。为了保护人类自身生存的环境,并缓解能源日益短缺的矛盾,必须对越来越多的农业、林业和农副产品加工业的废料以及城镇垃圾等方面的有机物进行处理。因此,一种既能解决环境保护又能生产代用燃料的生物质压缩成型燃料技术已越来越受到人们的重视。近年来,压缩成型燃料已成为为一门新兴的学科和新办的工业,在许多国家崛起,并得到迅速的发展。压缩成型的各种燃料已先后在一些国家中作为商品销售。 相似文献
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CYJ—35冲压式成型机试验研究 总被引:1,自引:0,他引:1
生物质固化成型技术能难以利用的、松散的、细碎的农林残余物制成成型燃料直接燃用、或者供动力机械,发电等使用。本文介绍了一种冲压式成型机的模拟试验研究情况。 相似文献
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农作物秸秆固化成型燃料生产企业投资分析 总被引:1,自引:0,他引:1
将农作物秸秆及其废弃物压制成长方体或圆柱体成型燃料,就能将农作物秸秆变成替代原煤的燃料。通过对农作物秸秆固化成型燃料生产企业建设的选址、工艺装备、生产规模、生产运营成本、经济效益等分析,为投资建设农作物秸秆固化成型燃料生产企业提供帮助和启示,以提高投资效益,促进我国农作物秸秆能源化事业快速稳步发展。 相似文献
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介绍了农林废弃物直燃发电系统,分析了此类项目的风险;论述了我国农林废弃物直燃发电技术和应用面临的关键问题,提出了解决方案。 相似文献
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Ayhan Demirbas 《Energy Sources, Part A: Recovery, Utilization, and Environmental Effects》2013,35(10):955-964
This study aims to estimate, identify and evaluate the biomass production options, estimate the sustainable biomass production for energy, and estimate the energy potential of biomass production in Turkey. Within the framework of sustainable development, Turkey today faces the challenge of balancing economic growth with environmental progress. Sustainable biomass production potential mainly depends on the productivity and surplus land available for biomass production. Based on the surplus land available for plantation, the plantation options and biomass productivity, the sustainable biomass potential for energy is estimated. Among the biomass energy sources, fuelwood seems to be one of the most interesting because its share of the total energy production of Turkey is high at 21%. The total biomass energy potential of Turkey is about 32 Mtoe. The amount of usable biomass potential of Turkey is approximately 17 Mtoe. The electrical production from usable biomass has a net impact of $4.4 billion in personal and corporate income and represented more than 160,000 jobs. 相似文献
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Phosphorus recovery from the biomass ash: A review 总被引:1,自引:0,他引:1
Biomass ash, generated during the thermal chemical conversion of biomass for energy production, is an industrial by-product which is often recognized as a solid waste, but there are some useful elements in the biomass ash such as phosphorus, etc. So through some technology and methods, the biomass ash can be transferred into a useful resource. The paper mainly includes the following aspects: biomass ash composition characteristics, biomass thermal chemical conversion for phosphorus and phosphorus recovery technology from biomass ash. Through these aspects literature review, not only the whole biomass ash characteristics was made clear, but also we think that the idea of phosphorus from biomass ash is feasible, especially for some high phosphorus ash such as sludge ash, meat and bone meal (MBM) ash, etc. So the review about phosphorus from the biomass ash is very important practical significance for biomass energy, biomass ash disposal and phosphorus resource. 相似文献
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中国林木生物质能源发展潜力研究(2) 总被引:15,自引:0,他引:15
本文通过对中国部分地区林木生物质资源的实地调查研究,结合国内外生物质能源开发利用技术和国内能源需求的现状,通过分析评价中国现有180多亿t林木生物质资源总量、8亿~10亿t可获得量和3亿t可作为能源的利用量,阐述了大力发展林木生物质能源必要性和可行性,预测了林木生物质能源替代化石能源的发展潜力和价值。通过正常的抚育间伐、灌木平茬复壮和大力发展能源林等措施,到2020年,全国可利用林木质资源将突破10亿t,年仅消耗6000万t林木质用于直燃发电,就可实现装机容量1000万kW以上的目标。 相似文献
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生物质气化合成燃料的绿色化学效应分析 总被引:3,自引:0,他引:3
对生物质原料特性及其应用进行了分析,并通过生命周期法(LCA)对生物质和煤气化合成二甲醚燃料的过程进行对比评价。与煤相比,以生物质为原料,每生产1kg二甲醚,可减少排放924.11gCO2,25.01gNOx,70.93gSOx,痕量金属排放量也大大减少。 相似文献
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中国林木生物质能源发展潜力研究(1) 总被引:33,自引:0,他引:33
本文通过对中国部分地区林木生物质资源的实地调查研究,结合国内外生物质能源开发利用技术和国内能源需求的现状,通过分析评价中国现有180多亿t林木生物质资源总量、8~10亿t可获得量和3亿t可作为能源的利用量,阐述了大力发展林木生物质能源必要性和可行性,预测了林木生物质能源替代化石能源的发展潜力和价值。通过正常的抚育间伐、灌木平茬复壮和大力发展能源林等措施,到2020年,全国可利用林木质资源将突破10亿t,年仅消耗6000万t林木质用于直燃发电,就可实现装机容量1000万kW以上的目标。 相似文献
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Ayhan Demirbas 《Energy Sources, Part A: Recovery, Utilization, and Environmental Effects》2016,38(20):2971-2976
Hydrogen can be produced from biomass materials via thermochemical conversion processes such as pyrolysis, gasification, steam gasification, steam-reforming, and supercritical water gasification (SCWG) of biomass. In general, the total hydrogen-rich gaseous products increased with increasing pyrolysis temperature for the biomass sample. The aim of gasification is to obtain a synthesis gas (bio-syngas) including mainly H2 and CO. Steam reforming is a method of producing hydrogen-rich gas from biomass. Hydrothermal gasification in supercritical water medium has become a promising technique to produce hydrogen from biomass with high efficiency. Hydrogen production by biomass gasification in the supercritical water (SCW) is a promising technology for utilizing wet biomass. The effect of initial moisture content of biomass on the yields of hydrogen is good. 相似文献
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生物质液化技术可将低品位的固体生物质完全转化成高品位的液体燃料或化学品,是生物质能高效利用的主要方式之一。按照机理,液化技术可以分为热化学法、生化法、酯化法和化学合成法(间接液化),热化学法液化又分为快速热解技术和高压液化(直接液化)技术。生物质热化学法液化已成为国内外生物质液化的研究开发重点和热点,快速热解液化技术和高压液化技术是最具产业化前景的生物质能技术,生化法液化技术也是生物质能的研究热点。化学合成法液化技术并不适用于生物质液化,而利用生物柴油进一步生产生物航空煤油是得不偿失的,不仅成本高、资源利用率低,而且全生命周期碳排放增加,还不符合未来生物航煤的发展趋势。生物质含水量的高低是影响生物质液化过程中能耗、效率、污染指数和经济性指标等的关键因素,应根据含水量合理选择生物质液化技术。快速热解液化技术适用于低含水农林废弃物,高压液化和生化法液化技术适用于高含水生物质,酯化法液化技术适用于不可食用油脂,而各种液化技术均不适用于城市生活垃圾的处理,建议将其用作燃气型气化原料。 相似文献
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Agricultural biomass has immense potential for power production in an Indian state like Punjab. A judicious use of biomass energy could potentially play an important role in mitigating environmental impacts of non-renewable energy sources particularly global warming and acid rain. But the availability of agricultural biomass is spatially scattered. The spatial distribution of this resource and the associate costs of collection and transportation are major bottlenecks for the success of biomass energy conversion facilities. Biomass, being scattered and loose, has huge collection and transportation costs, which can be reduced by properly planning and locating the biomass collection centers for biomass-based power plants. Before planning the collection centers, it is necessary to evaluate the biomass, energy and collection cost of biomass in the field. In this paper, an attempt has been made to evaluate the spatial potential of biomass with geographical information system (GIS) and a mathematical model for collection of biomass in the field has been developed. The total amount of unused agricultural biomass is about 13.73 Mt year−1. The total power generation capacity from unused biomass is approximately 900 MW. The collection cost in the field up to the carrier unit is US$3.90 t−1. 相似文献