当前位置: X-MOL 学术Int. J. Chem. Eng. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Efficient Synthesis of Biodiesel Catalyzed by Chitosan-Based Catalysts
International Journal of Chemical Engineering ( IF 2.3 ) Pub Date : 2021-12-29 , DOI: 10.1155/2021/8971613
Anping Wang 1 , Wenxuan Quan 1 , Heng Zhang 2
Affiliation  

Catalysts play an important role in the preparation of biodiesel. It is of great significance to study catalysts with high efficiency, low cost, and easy preparation. Compared with the homogeneous catalyst system, the heterogeneous catalyst is easy to separate and has a better catalytic effect. In heterogeneous catalysts, supports and preparation methods have important effects on the dispersion of active centers and the overall performance of catalysts. However, the supports of existing solid catalysts have defects in porosity, structural uniformity, stability, and specific surface area, and the preparation methods cannot stabilize covalent bonds or ionic bonds to bind catalytic sites. Considering the activity, preparation method, and cost of the catalyst, biomass-based catalyst is the best choice, but the specific surface area of the biomass-based catalyst is relatively low, the distribution of active centers is uneven, and it is easy to lose. Therefore, the hybrid carrier of biomass-based catalyst and other materials can not only improve the specific surface area but also make the distribution of active centers uniform and the catalytic activity better. Based on this, we summarized the application of chitosan hybrid material catalysts in biodiesel. The preparation, advantages and disadvantages, reaction conditions, and so on of chitosan-based catalysts were mainly concerned. At the same time, exploring the effects of different types of chitosan-based catalysts on the preparation of biodiesel and exploring the process technology with high efficiency and low consumption is the focus of this paper.

中文翻译:

壳聚糖基催化剂催化高效合成生物柴油

催化剂在生物柴油的制备中起着重要作用。研究高效、低成本、易制备的催化剂具有重要意义。与均相催化剂体系相比,非均相催化剂易于分离,催化效果更好。在多相催化剂中,载体和制备方法对活性中心的分散和催化剂的综合性能有重要影响。然而,现有固体催化剂的载体在孔隙率、结构均匀性、稳定性和比表面积等方面存在缺陷,且制备方法无法稳定共价键或离子键结合催化位点。综合考虑催化剂的活性、制备方法和成本,生物质基催化剂是最佳选择,但生物质基催化剂的比表面积较低,活性中心分布不均,容易丢失。因此,生物质基催化剂与其他材料的混合载体不仅可以提高比表面积,而且可以使活性中心分布均匀,催化活性更好。在此基础上,我们总结了壳聚糖杂化材料催化剂在生物柴油中的应用。主要关注壳聚糖基催化剂的制备、优缺点、反应条件等。同时,探索不同类型壳聚糖基催化剂对生物柴油制备的影响,探索高效低耗的工艺技术是本文的重点。活跃中心分布不均,容易流失。因此,生物质基催化剂与其他材料的混合载体不仅可以提高比表面积,而且可以使活性中心分布均匀,催化活性更好。在此基础上,我们总结了壳聚糖杂化材料催化剂在生物柴油中的应用。主要关注壳聚糖基催化剂的制备、优缺点、反应条件等。同时,探索不同类型壳聚糖基催化剂对生物柴油制备的影响,探索高效低耗的工艺技术是本文的重点。活跃中心分布不均,容易流失。因此,生物质基催化剂与其他材料的混合载体不仅可以提高比表面积,而且可以使活性中心分布均匀,催化活性更好。在此基础上,我们总结了壳聚糖杂化材料催化剂在生物柴油中的应用。主要关注壳聚糖基催化剂的制备、优缺点、反应条件等。同时,探索不同类型壳聚糖基催化剂对生物柴油制备的影响,探索高效低耗的工艺技术是本文的重点。生物质基催化剂与其他材料的混合载体,不仅可以提高比表面积,而且可以使活性中心分布均匀,催化活性更好。在此基础上,我们总结了壳聚糖杂化材料催化剂在生物柴油中的应用。主要关注壳聚糖基催化剂的制备、优缺点、反应条件等。同时,探索不同类型壳聚糖基催化剂对生物柴油制备的影响,探索高效低耗的工艺技术是本文的重点。生物质基催化剂与其他材料的混合载体,不仅可以提高比表面积,而且可以使活性中心分布均匀,催化活性更好。在此基础上,我们总结了壳聚糖杂化材料催化剂在生物柴油中的应用。主要关注壳聚糖基催化剂的制备、优缺点、反应条件等。同时,探索不同类型壳聚糖基催化剂对生物柴油制备的影响,探索高效低耗的工艺技术是本文的重点。我们总结了壳聚糖杂化材料催化剂在生物柴油中的应用。主要关注壳聚糖基催化剂的制备、优缺点、反应条件等。同时,探索不同类型壳聚糖基催化剂对生物柴油制备的影响,探索高效低耗的工艺技术是本文的重点。我们总结了壳聚糖杂化材料催化剂在生物柴油中的应用。主要关注壳聚糖基催化剂的制备、优缺点、反应条件等。同时,探索不同类型壳聚糖基催化剂对生物柴油制备的影响,探索高效低耗的工艺技术是本文的重点。
更新日期:2021-12-29
down
wechat
bug