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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Production of eco-materials from organic wastes by pyrolysis process
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Production of eco-materials from organic wastes by pyrolysis process

机译：通过热解过程从有机废物中生产生态材料

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摘要

The research objective of this work was to develop eco-materials which can be used in environment depollution. The activated carbons considered as eco-materials have been prepared from rape seeds after the extraction of oil by a slow pyrolysis process. The optimum conditions were an activation temperature of 650 deg C, an activation time of 3 h and a nitrogen flow rate of 30 1/h, using steam as activating agent. The prepared activated carbons had a specific surface area of 700-1500 m~2/g and a grain bulk density of 0.4-0.8 g/cm~3. The physico-chemical characteristics of the carbon active samples were determined using adsorption methods. The carbon adsorbents were chemically modified to have base sites on their surfaces and to investigate the adsorption characteristics of carbon dioxide. Strong interaction between carbon dioxide and base sites enhanced the adsorption of carbon dioxide at temperatures up to 250 deg C.
机译：这项工作的研究目标是开发可用于环境污染的生态材料。被认为是生态材料的活性炭是通过缓慢的热解过程从油菜籽中提取油后制备的。最佳条件是使用蒸汽作为活化剂，活化温度为650℃，活化时间为3 h，氮气流速为30 1 / h。所制备的活性炭的比表面积为700-1500m 2 / g，颗粒堆积密度为0.4-0.8g / cm 3。使用吸附方法确定碳活性样品的理化特性。对碳吸附剂进行了化学修饰，使其表面上具有碱位，并研究了二氧化碳的吸附特性。二氧化碳和碱基之间的强相互作用增强了高达250摄氏度的温度下二氧化碳的吸附。

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