首页> 外文期刊>Journal of Analytical & Applied Pyrolysis >Exploring the potential of red mud and beechwood co-processing for the upgrading of fast pyrolysis vapours
【24h】

Exploring the potential of red mud and beechwood co-processing for the upgrading of fast pyrolysis vapours

机译:探索赤泥和山毛榉木协同处理提高快速热解蒸气的潜力

获取原文
获取原文并翻译 | 示例
       

摘要

Red mud, a by-product of the Bayer process in the aluminium industry, is co-processed with beechwood for the in-situ upgrading of fast pyrolysis vapour products. It is revealed that the co-processing of beechwood with thermally pre-treated red mud enhanced the vapour upgrading effect. Individual oxides (alpha-Al2O3, Fe2O3, SiO2, and TiO2), which are the main constituents of red mud were also tested for the identification of their individual impact on the upgrading process. A biomass/catalyst weight ratio of 1:4 showed the strongest effect on the product distribution. Red mud was found to reduce the yield of phenolic compounds and promote the formation of cellulose- and hemicellulose-derived furfurals and hemicellulose-derived acetic acid, which can be used for the production of a broad range of chemicals and liquid transportation fuels. alpha-Al2O3 and Fe2O3 reduced the relative yield of phenols as well, whereas the formation of furfurals was promoted by Fe2O3 and TiO2. SiO2 showed negligible effect on fast pyrolysis vapours. The impact of catalysts on the product distribution is discussed for phenols, furfurals, and acids, for which the strongest effects were observed.
机译:赤泥是铝工业中拜耳法的副产品,它与山毛榉木共同加工,用于原位提纯快速热解蒸气产品。结果表明,山毛榉木与经过热处理的赤泥的共处理增强了蒸汽的提质效果。还对作为赤泥主要成分的单独氧化物(α-Al2O3,Fe2O3,SiO2和TiO2)进行了测试,以确定它们对提质过程的单独影响。 1:4的生物质/催化剂重量比显示出对产品分布的最强影响。发现赤泥可降低酚类化合物的收率,并促进纤维素和半纤维素衍生的糠醛和半纤维素衍生的乙酸的形成,可用于生产多种化学品和液体运输燃料。 α-Al2O3和Fe2O3也会降低酚的相对产率,而糠醛的形成受Fe2O3和TiO2的促进。 SiO2对快速热解蒸气的影响可忽略不计。讨论了催化剂对酚,糠醛和酸的产物分布的影响,观察到其影响最大。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号