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首页> 外文期刊>Environmental Science & Technology >Assessing the Fate of Nutrients and Carbon in the Bioenergy Chain through the Modeling of Biomass Growth and Conversion
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Assessing the Fate of Nutrients and Carbon in the Bioenergy Chain through the Modeling of Biomass Growth and Conversion

机译：通过生物量生长和转化的模型评估生物能源链中营养素和碳的命运

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摘要

A forest growth model was coupled to a model of combined heat and power (CHP) production in a gasification plant developed in Aspen Plus. For a given production, this integrated forest-to-energy model made it possible to predict the annual flows in wood biomass, carbon, and nutrients, including N, S, P, and K, from the forest to the air emissions (NOx, SOx, PAH, etc.) and ash flows. We simulated the bioenergy potential of pure even-aged high-forest stands of European beech, an abundant forest type in Northeastern France. Two forest management practices were studied, a standard-rotation and a shorter-rotation scenario, along with two wood utilizations: with or without fine woody debris (FWD) harvesting. FWD harvesting tended to reduce the forested area required to supply the CHP by 15-22% since larger amounts of energy wood were available for the CHP process, especially in the short-rotation scenario. Because less biomass was harvested, the short-rotation scenario with FWD decreased the nutrient exports per hectare and year by 4-21% compared to standard practices but increased the amount of N, S, and P in the CHP process by 2-9%. This increase in the input nutrient flows had direct consequences on the inorganic air emissions, thus leading to additional NOx and SO_2 emissions. This model is a valuable tool for assessing the life cycle inventories of the entire bioenergy chain.
机译：将森林生长模型与由Aspen Plus开发的气化厂中的热电联产模型耦合。对于给定的产量，这种集成的森林到能源模型可以预测木材从森林到大气中的生物量，碳和养分（包括N，S，P和K）的年流量（NOx， SOx，PAH等）和灰分流。我们模拟了欧洲山毛榉（法国东北部一种丰富的森林类型）的纯正平均年龄的高森林林林分的生物能源潜力。研究了两种森林管理方法，即标准轮伐和短轮伐方案，以及两种木材利用方式：有或没有细木屑（FWD）的采伐。 FWD的采伐往往会使供应CHP所需的林区减少15-22％，因为有大量的能量木可用于CHP工艺，尤其是在短轮伐期。由于收获的生物量较少，与标准做法相比，采用短时轮作的短轮伐情景使每公顷和每年的养分出口减少了4-21％，但热电联产过程中的氮，磷和磷的量增加了2-9％ 。输入营养物流量的增加直接影响了无机空气的排放，因此导致了额外的NOx和SO_2排放。该模型是评估整个生物能源链生命周期清单的宝贵工具。

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  • 来源
    《Environmental Science & Technology》 |2014年第23期|14007-14015|共9页
  • 作者

    Jessica Francois; Mathieu Fortin; Fabrice Patisson; Anthony Dufour;

  • 作者单位

    Federation Jacques Villermaux, CNRS, Universite de Lorraine, 2 avenue de la Foret de Haye, 54518 Vandoeuvre-les-Nancy, France;

    AgroParisTech, UMR 1092 LERFOB, 54042 Nancy, France,INRA, UMR 1092 LERFOB, 54280 Champenoux, France;

    Institut Jean Lamour, CNRS, Universite de Lorraine, Labex DAMAS, Parc de Saurupt, 54011 Nancy, France;

    Laboratoire Reactions et Genie des Procedes, ENSIC, CNRS, Universite de Lorraine, 1 rue Grandville, 54000 Nancy, France;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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