共查询到15条相似文献,搜索用时 158 毫秒
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本文阐述了国内外BIGCC生物质气化联合循环发电技术的发展概况和关键技术,介绍了生物质和煤共同气化的特性,为我国生物质气化联合循环发电技术的商业化运行提供了指导。 相似文献
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中国生物质气化发电技术的商业化分析 总被引:15,自引:3,他引:15
生物质气化发电技术是一种新型清洁发电技术,与传统火力发电技术相比,避免了CO2、SO2、NOx等有害气体的排放。“八五”、“九五”期间,科技部大力支持了生物质气化发电技术的研发工作和示范项目建设,取得了重要进展。但是,该技术的大规模推广最终必须依靠市场机制,实现商业化;而公共政策会在技术商业化过程中发挥重要的作用。该文简要介绍了生物质气化发电技术在我国发展的背景,研究了生物质气化技术的市场竞争力,分析了公共政策在生物质气化发电技术商业化过程中的作用。 相似文献
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生物质气化发电技术的现状及发展趋势 总被引:1,自引:0,他引:1
欧训民 《能源技术(上海)》2009,30(2):84-85
简要介绍了国内外生物质气化发电技术的研究现状及发展趋势。生物质气化发电技术在发达国家已受到广泛重视,生物质联合循环发电技术(BIGCC)利用外燃机燃用生物质气,可避免高温气化气的除尘除焦难题,是一种比较先进的生物质能利用技术。根据我国国情,引进大型BIGCC并采用内燃机代替燃气轮机,是解决我国生物质气化发电规模化发展的有效手段之一。 相似文献
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生物质气化发电技术的进展 总被引:7,自引:0,他引:7
本文对各种生物质气化发电技术及该技术在国内外的发展现状做了综述.目前我国的生物质气化发电仅仅是初具规模,热效率很低且存在不少技术问题.要利用气化发电技术创造良好经济效益,同时取得良好的环保效益,在解决技术性问题的同时,一定要因地制宜采用适宜的气化发电技术形式. 相似文献
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《Biomass & bioenergy》2007,31(9):656-664
Around 76% of the 10,452 villages of Cambodia will still be without electricity in the year 2010. We examined the potential of biomass gasification fuelled by alternative resources of agricultural residues and woody biomass to increase rural power supply, using geographic and social economic databases provided by the Royal Government of Cambodia. About 77% of villages currently without electricity have sufficient land available for tree planting for electricity generation based on a requirement of 0.02 ha per household. Among 8008 villages with sufficient land, we assumed that those villages that had greater than 10% of households owning a television (powered by a battery or a generator) would have both a high electricity demand and a capacity to pay for electricity generation. Those 6418 villages were considered appropriate candidates for mini-grid installation by biomass gasification. This study demonstrated that while agricultural residues such as rice husks or cashew nut shells may have high energy potential, only tree farming or plantations would provide sufficient sustainable resources to supply a biomass gasification system. Cost per unit electricity generation by biomass gasification is less than diesel generation when the plant capacity factor exceeds 13%. In order to ensure long-term ecological sustainability as well as appropriate tree-farming technology for farmers, there is an urgent need for studies aimed at quantifying biomass production across multiple rotations and with different species across Cambodia. 相似文献
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A promising renewable energy technology is electricity generated with biomass‐derived synthetic gas (syngas). The economic feasibility of using biomass gasification for generating electrical power is very much dependent on the cost of the power plant and the cost of its operation. A cost model was developed to analyze the Unit Cost (unit‐cost) of electricity generation from micro‐scale power facilities that used biomass gasification as its energy input. The costs considered in the model were capital cost and operating costs. The results from the modeling indicated that operating cost was a major part of the total annual production cost of electricity generation, and that labor was the largest part of the total annual production cost of operation, and it was during the time when the power facilities operated at lower generation capacity levels. One effective way of reducing the unit‐cost was to operate the facility at high capacity level. The study found that when the capacity level increased the total of annual cost was also increased, but the electricity unit‐cost decreased markedly. For a given level of generating capacity, the electricity unit‐cost of the facility operating at a two or three shifts operating mode was significantly lower than that of one shift operating mode. Copyright © 2010 John Wiley & Sons, Ltd. 相似文献
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Biomass gasification is considered a key technology in reaching targets for renewable energy and CO2 emissions reduction. This study evaluates policy instruments affecting the profitability of biomass gasification applications integrated in a Swedish district heating (DH) system for the medium-term future (around year 2025). Two polygeneration applications based on gasification technology are considered in this paper: (1) a biorefinery plant co-producing synthetic natural gas (SNG) and district heat; (2) a combined heat and power (CHP) plant using integrated gasification combined cycle technology. Using an optimisation model we identify the levels of policy support, here assumed to be in the form of tradable certificates, required to make biofuel production competitive to biomass based electricity generation under various energy market conditions. Similarly, the tradable green electricity certificate levels necessary to make gasification based electricity generation competitive to conventional steam cycle technology, are identified. The results show that in order for investment in the SNG biorefinery to be competitive to investment in electricity production in the DH system, biofuel certificates in the range of 24–42 EUR/MWh are needed. Electricity certificates are not a prerequisite for investment in gasification based CHP to be competitive to investment in conventional steam cycle CHP, given sufficiently high electricity prices. While the required biofuel policy support is relatively insensitive to variations in capital cost, the required electricity certificates show high sensitivity to variations in investment costs. It is concluded that the large capital commitment and strong dependency on policy instruments makes it necessary that DH suppliers believe in the long-sightedness of future support policies, in order for investments in large-scale biomass gasification in DH systems to be realised. 相似文献
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