Properties of Danish biofuels and the requirements for power production
Properties of Danish biofuels and the requirements for power production
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DOI：
10.1016/s0961-9534(96)00072-4
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发表时间：
1997
影响因子：
6
通讯作者：
B. Sander
中科院分区：
文献类型：
--
作者：
B. Sander
秸秆和木屑是最丰富的生物燃料在丹麦，并概述了燃料成分与煤相比。秸秆中高含量的钾和氯在发电厂中引起许多严重的技术问题，因此研究了降低秸秆中钾和氯含量的可能性。在1993年和1994年的生长季节进行了栽培试验。在该项目的第一部分中，研究了不同栽培因素对秸秆化学成分的影响。还对选定的谷物样品进行了分析。在项目的第二部分中，研究了肥料供氯对秸秆成分的影响。秸秆钾氯含量与土壤类型、氮钾肥用量、农药用量及地理位置无相关性。秸秆含氯量与化肥供氯量之间有很强的相关性。钾和氯的含量取决于品种。收获后的雨水会从田间的稻草中浸出大量的钾和氯。籽粒灰分、K、Ca、Si、Cl含量低于秸秆，N含量高于秸秆。
Straw and wood chips are the most abundant biofuels in Denmark, and an overview of fuel composition in comparison with coal is given. The high content of potassium and chlorine in straw causes a number of serious technical problems in power production plants, and therefore the possibility of reducing the content of potassium and chlorine in straw was investigated. Cultivation trials were established in the growing seasons of 1993 and 1994. In the first part of the project, the way in which different cultivation factors influence the chemical composition of straw was investigated. Selected samples of grain were also analysed. In the second part of the project, the influence of chlorine supply with fertilizers on straw composition was studied. There was no correlation between the content of potassium and chlorine in straw, soil type, nitrogen and potassium fertilizer dose, pesticide dose and geographic location. There is a strong correlation between chlorine content in straw and supply of chlorine with fertilizer. The content of potassium and chlorine is dependent on the variety. Rain after harvest leaches significant amounts of potassium and chlorine from straw lying in the field. Grain has a lower content of ash, K, Ca, Si, and Cl than straw, but a higher content of N.