木质颗粒燃料生产成本分析

木质颗粒燃料比其他生物质能源更容易实现大规模生产和使用,最适宜替代传统化石能源。对比分析表明,我国木质颗粒燃料的生产总成本不到国外的三分之一,规模化生产木质颗粒燃料价格略低于煤炭。     

我国与国外木质颗粒生产成本对比分析

木质颗粒燃料比其他生物质能源更容易实现大规模生产和使用,最适宜替代传统化石能源.对比分析了国内外木质颗粒生产成本,我国木质颗粒的生产总成本不到国外的三分之一,规模化生产木质颗粒价格略低于煤炭,由于其优越的环保性能,推广应用极具优势,木质颗粒在民用取暖、工业燃煤锅炉、小型火电燃煤锅炉领域替代煤炭,将带来很好的经济效益和环保效益.     

木质颗粒燃料及其应用效果

木质颗粒燃料是一种新型清洁能源。本文介绍了木质颗粒燃料的基本特性及应用情况，对应用效果进行了分析，并对木质颗粒燃料的生产及应用提出了建议。     

欧洲和北美木质能源市场新动态

鉴于木质能源的国际贸易日趋活跃,本文基于欧洲和北美这两个全球最重要的木质能源市场,从木质颗粒燃料生产、价格和贸易三个方面全面分析了木质能源市场动态。同时,本文还分析了政策、标准和监管对木质能源市场影响,为我国木质能源生产和贸易提供了国际市场借鉴。     

木质能源将改变目前能源需求趋紧的状况

英国：欧洲生物燃料博览会和木质能源研讨会将于今年10月中旬举行，届时将讨论包括欧洲市场在内的木质燃料的使用经验，以及木质煤球的生产制造和不同大小功率的生物能源制热实现方案等。     

木质颗粒成型机环模受力分析

伴随着全球能源的紧张,可再生的生物质颗粒能源越来越受到重视.作为木质颗粒成型机重要零件的环模对成型产品的质量影响较大.环模在工作过程中受力复杂多变,常规的环模的设计都是依据经验.在前辈研究成果的基础上,对环模工作过程中的受力进行了进一步分析,确定了环模内表面的压力分布以及制粒孔内表面的压力分布,研究结果为环模的优化设计...     

木质生物质快速热解生物油产率影响因素分析

木质生物质能是可再生能源的重要组成部分,快速热解技术是国内外木质生物质能源化的热点研究课题.本文在简要总结木质生物质快速热解技术的基础上,着重对快速热解过程中热解温度、升温速率、压力、气相滞留时间、木质生物质物料特性、催化剂、热解反应器等因素对生物油产率的影响进行了论述,阐明了提高生物油产率的快速热解工艺条件.     

欧洲木质颗粒燃料产业发展现状与启示

欧洲是全球木质颗粒燃料产业发达地区.文中介绍欧洲木质颗粒燃料市场总体情况、生产特征、消费特征和价格体系, 分析其为规范和引导发展木质颗粒燃料产业而在原料收集、燃料燃烧、能源服务等3个环节采取的政策措施, 从统筹环境保护与经济发展角度提出对我国发展木质颗粒燃料产业的启示.     

第二章 中国林木生物质能源资源培育与发展潜力调查

能源危机是当今人类发展面临的严重挑战。开发和利用林木生物质能源是当前全球应对能源危机和气候变化的最重要的措施之一。中国有丰富的林木生物质能源资源，其种类多、生物量大，燃烧值高，具有重要的利用和发展潜力，是生产“木质煤、生物柴油、生物乙醇”的重要再生生物能源。因此。大力培育与利用这一能源，具有十分重要的战略意义。     

预处理纤维素超分子结构变化机制研究进展

木质纤维生物质高值转化生产清洁能源、生物基化学品和功能材料是可再生能源领域的研究热点.纤维素是木质纤维生物质的主要成分,其高效利用是生物炼制的重点.然而,纤维素的生物转化面临分子链有序组装与结晶而成的超分子结构、微纤丝聚集形成的多尺度网络结构及其与木质素、半纤维素的多种化学交联共同形成的木质纤维素抗降解屏障,阻碍了其产...     

木质颗粒燃料——可再生的清洁能源

木质颗粒燃料是一种可再生、清洁和成本稳定的燃料,可由农作物秸秆、木、竹加工剩余物及普通的废旧木料等可再生的物质制成,北美和欧洲正在大量使用.本文介绍了木质颗粒燃料产业的发展现状,产品特点、用途和制造工艺,并分析了这种燃料在我国的发展前景.     

功能性木质生物质环境材料的研究现状与展望

以森林为主体的木质生物质是一种"再生可能的、来源于生物的有机资源".生物质资源代替化石资源是历史发展的必由之路.本文集中讨论利用木质生物质资源,通过生物化学、热化学变换方法,制备功能性环境材料的技术路线等问题.     

Environmental effects of harvesting forests for energy

Present interest in decreasing U.S. dependence on foreign oil by increasing the use of wood for energy may bring about a change in our forest utilization policies. In the past, forests have been removed in areas believed to be suited for agriculture, or sawtimber and pulp have been the only woody material removed in any quantity from land not generally considered tillable. The new demands on wood for energy are effecting a trend toward (1) removing all woody biomass from harvested areas, (2) increasing the frequency of harvesting second growth forests, and (3) increasing production with biomass plantations. Considering the marginal quality of much of the remaining forested land, the impacts of these modes of production could be significant. For example, it is anticipated that increased losses of nutrients and carbon will occur by direct forest removal and through erosion losses accelerated by forest clearing. There are, however, control measures that can be utilized in minimizing both direct and indirect effects of forest harvesting while maximizing woody biomass production.     

Possibility of using three invasive non-forest tree species as an alternative source for energy production

Non-woody biomass species have high-energy potentials, which could be used for bioenergy production. Invasive species are species spreading into areas, where they are not native, consequently causing environmental and economic problems. Therefore, the present study evaluated the proximate, ultimate, chemical, and fuel characteristics of wood and charcoal of three invasive non-forest tree species in Saudi Arabia: Calotropis procera, Rhazya stricta, and Phragmites australis, which were compared with the wood of Acacia tortilis, a preferable local fuelwood. All these data were discussed to investigate the possibility of using the invasive plants for energy production. The thermal behavior of wood was analyzed using thermo-gravimetric and derivative thermo-gravimetric methods. Overall, compared with the wood of A. tortilis, the woods of R. stricta and P. australis are suitable for energy production. The charcoal produced from P. australis emitted less nitrogen (N) oxide than that of R. stricta.     

生物质能源概述

生物质能源是倍受世界各国重视的可再生能源。文中介绍了生物质能源的优越性、多种转化技术体系、类别及性能。还着重介绍了木本植物营养体中的组成成分，指出集约经营短轮伐期乔灌木能源林是发展生物质能源的基础。同时针对世界生物质能源树木遗传改良研究现状和存在的问题，提出了我国生物质能源研究的建议。     

木质生物质能源技术的发展创新

阐述了木质生物质能源技术的发展及目前在我国的应用;指出了我国木质生物质能源未来的发展方向。     

Wood energy plantations in temperate climates

Wood energy plantations are being considered in several countries for achieving greater energy independence. Many of the projects are still in research and development stages, while several programs are already operational.Maximizing the efficient production of energy by means of optimizing the growth of selected plant crops is the goal in energy plantations. For this, the bioecological factors (planting site, tree species, photosynthetic activity, soil moisture and nutrient availability), methods of genetic improvement (interspecific hybrids, clones, breeding for biomass productivity and qualities, and breeding for energy efficiency), and cultural treatments (soil preparation, planting stock, planting, spacing, weed control, fertilization, irrigation, pest control and resprouting) influencing productivity are discussed. A review of biomass yields, energy contents and ratios, production economics and conversion methods concludes the treatise.Short rotation, intensively managed plantations of genetically improved, fast growing trees can make significant contributions to energy supplies. The increased support given to this concept of energy plantations will benefit forest management in general.The environmental concerns related to intensive cultural practices in energy plantations are similar to those in agriculture. The problems are not impossible to overcome. Compared to hazards of nuclear energy, and polluting effects of coal, wood biomass remains undoubtedly a safer and healthier option.     

吉林省林业生物质能源建设和开发利用的总体构想

吉林省发展林业生物质能源产业潜力巨大。有三个开发途径:①生物质固体燃料加工;②林木质燃料发电;③生物柴油生产。在推进措施上,重点强化六个环节:①制定发展规划;②实施科技攻关;③开展试验示范;④建设原料基地;⑤出台鼓励政策;⑥明确政府责任。     

Potential forest biomass resource as feedstock for bioenergy and its economic value in Indonesia

Indonesia has abundant forest biomass resource, which should not be considered as a low economic value resource. This forest biomass resource can be converted into bioenergy through various technologies and it becomes one of sources in Indonesia's energy mix. This paper focuses on forest residues generated primarily from the harvesting of natural production forests and industrial forest plantations; and wood processing mill residues. The estimated total potential forest biomass in Indonesia for bioenergy in the year 2013 was 132 PJ. About 50.4% resulted from harvesting residues and 49.6% from wood processing residues. Riau province has the largest potential bioenergy followed by Central Kalimantan, East Kalimantan, East Java, South Sumatera, Central Java and Jambi, which all together accounted for 87% of total potential bioenergy. Moreover, three major islands accounted for 95% of total potential bioenergy. Using a conversion return approach, the economic value of forest biomass when it was pelletized was estimated to be about US$ 5.6 per ton wood residues. The economic value of forest biomass is more sensitive to changes in the price of wood pellet than to changes in the collection and hauling cost of wood residues.     

我国桉树生物质能源林研究与利用综述

开发利用林业生物质能源是改善能源结构、保障能源安全和保护生态环境的重要途径之一.桉树不仅是工业原料林生产的重要树种,也是林业生物质能利用的良好原材料.本文从品种研究、评价指标(热值、灰分、生物量、能量现存量)、造林技术(立地条件、整地方式、造林密度、混交造林、收获周期、效益分析)和利用方式等方面阐述了我国桉树生物质能源林研究与利用现状,简要总结了我国发展桉树生物质能源存在的不足并提出今后加强研究的重点,以期为我国合理开发和利用桉树生物质能源提供参考.