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首页> 外文会议>Italian Conference on Chemical and Process Engineering(ICheaP-6) vol.2; 20030608-11; Pisa(IT) >Conversion of Biomass Wastes to Valuable Energy Source Products -A Study on Liquefaction of Pine Barks
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Conversion of Biomass Wastes to Valuable Energy Source Products -A Study on Liquefaction of Pine Barks

机译：生物质废物向有价值的能源产品的转化-松树皮液化的研究

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摘要

Many investigations have been made on different biomass materials in order to evaluate them as energy sources. Tree barks, as wastes of forest and paper industry, are a widely available type of biomass. They are generally evaluated by direct combustion to generate heat. However, this way of evaluation is not efficient due to their low heat value. In this work, the effects of temperature and pressure on the product yields in the liquefaction of pine barks were studied. Experiments were carried out in an autoclave in the presence of tetralin-creosote oil solvent mixture under 10-50 bar cold hydrogen pressure at a residence time of 1 hour. The temperature range studied was 300-400℃. The results obtained show that high convertions may be obtained at temperatures lower than 300℃. Total conversion remained almost constant in the temperature and pressure range under study. Hovewer, the oil+gas yield increased with the rise in temperature and pressure. It is also observed that the calorific values of oil and residue were greater than the calorific value of pine barks.
机译：为了评估它们作为能源，已经对不同的生物质材料进行了许多研究。树皮作为森林和造纸工业的废物，是一种广泛使用的生物质。通常通过直接燃烧产生热量来评估它们。但是，由于其低热值，这种评估方式效率不高。在这项工作中，研究了温度和压力对松树皮液化过程中产品收率的影响。在四氢化萘-杂酚油溶剂混合物的存在下，在高压釜中，在10-50 bar冷氢压力下，停留时间为1小时的条件下进行实验。研究的温度范围是300-400℃。结果表明，在低于300℃的温度下可以获得较高的转化率。在研究的温度和压力范围内，总转化率几乎保持恒定。但是，随着温度和压力的升高，油气产量增加。还观察到，油和残渣的热值大于松树皮的热值。

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