期刊
INDUSTRIAL CROPS AND PRODUCTS
卷 137, 期 -, 页码 495-500出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.indcrop.2019.05.066
关键词
Biomass; Selective pyrolysis; Phenol; K3PO4; Magnetic solid base catalyst
资金
- National Natural Science Foundation of China [51576064, 51821004]
- Beijing Nova Program [Z171100001117064]
- Beijing Natural Science Foundation [3172030]
- Fok Ying Tung Education Foundation [161051]
- Fundamental Research Funds for the Central Universities [2019JG002, 2017ZZD05]
Phenol is an important phenolic compound widely used in chemical industry. Lignin in lignocellulosic biomass materials has been recognized as a renewable source for phenol production due to its aromatic nature. In the present study, phenol was selectively prepared from fast pyrolysis of biomass using a recyclable magnetic solid base catalyst (K3PO4/Fe3O4, MSB) in an atmosphere with low hydrogen content. The study focused on the influence of pyrolysis atmosphere, pyrolysis temperature, catalyst content, and biomass type on the product distribution, as well as the recycle performance of MSB in consecutive pyrolysis experiments. Results suggested that the synergistic effect of MSB catalyst and hydrogen atmosphere significantly improved the formation of phenol. In a hydrogen atmosphere at MSB to biomass ratio of 1, the maximal phenol yield of 4.3 wt% with the selectivity of 17.6% was obtained from poplar wood pyrolysis at 550 degrees C. Pyrolysis experiments with different biomass materials suggested that the phenol formation was positively correlated with biomass lignin content. A three consecutive run experiment indicated that the MSB catalyst had excellent performance on recovery and recycle. In addition, possible synergistic mechanism between MSB and hydrogen atmosphere was proposed.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据