• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Effects of the novel catalyst Ni–S2O82?–K2O/TiO2 on efficient lignin depolymerization
【24h】

Effects of the novel catalyst Ni–S2O82?–K2O/TiO2 on efficient lignin depolymerization

机译：新型催化剂Ni-S2O82β-k20 / TiO2对高效木质素脱聚的影响

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

To improve the utilization of lignin, much effort has been devoted to lignin depolymerization with the aim to decrease waste and enhance profitability. Here, a dual property (acid and base) catalyst, namely S _(2) O _(8) ~(2?) –K _(2) O/TiO _(2) , was carefully researched. Upon loading S _(2) O _(8) ~(2?) and K _(2) O onto TiO _(2) , acid and base sites emerged, and S _(2) O _(8) ~(2?) and K _(2) O mutually enhanced the acid and base strengths of the catalyst enormously; this indeed facilitated lignin depolymerization. Under appropriate conditions, the yields of liquid product, petroleum ether soluble (PE-soluble) product and total monomer products were 83.76%, 50.4% and 28.96%, respectively. The constituents of the PE-soluble fraction, which are mainly monomers and dimers, can be used as liquid fuels or additives. In addition, after the catalyst was modified by Ni, better results were obtained. Surprisingly, it was found that the Ni enhanced not only the hydrogenation capacity but also the acidity. The highest high heating value (HHV) of the liquid product (33.6 MJ kg ~(?1) ) was obtained, and the yield of PE-soluble product increased from 50.4 to 56.4%. The product can be utilized as a fuel additive or be converted to bio-fuel. This catalysis system has significant potential in the conversion of lignin to bio-fuel.
机译：为了提高木质素的利用，致力于降低浪费和提高盈利能力的木质素解解缩的努力。这里，双重性（酸和碱）催化剂，即S _（2）O _（8）〜（2？）-K _（2）O / TiO _（2），经过仔细研究。在加载S _（2）o _（8）〜（2？）和k _（2）o到TiO _（2）上，出现酸和基地，S_（2）O _（8）〜（ 2？）和k _（2）o相互增强酸性酸和基础强度的衍生物巨大;这确实有助于木质素解解。在适当的条件下，液体产物的产率，石油醚可溶性（PE可溶性）产物和总单体产物分别为83.76％，50.4％和28.96％。 PE-可溶性级分的成分，主要是单体和二聚体，可用作液体燃料或添加剂。另外，通过Ni改变催化剂后，获得更好的结果。令人惊讶的是，发现Ni不仅增强了氢化容量，还增强了酸度。获得液体产物的最高加热值（HHV）（33.6MJ kg〜（α1）），PE-溶性产物的产率从50.4增加到56.4％。该产品可用于燃料添加剂或转化为生物燃料。这种催化系统在木质素转化为生物燃料方面具有显着潜力。

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