Mechanical Properties and Cross-Linking Density of Short Sisal Fiber Reinforced Silicone Composites

BioResources

卷:12

Zhihe Li¹  Bryan M. Jenkins¹  Lihong Wang²  Weiming Yi²  Yongjun Li³  Ziyun Liu³ 

[1] China;

[2] Shandong Research Center of Engineering and Technology for Clean Energy, Zibo, Box 255049, China;

[3] School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, Box 255049, China;

关键词: Phenolic species;    AAEMs;    Corn stalk;    Lignin;    Fast pyrolysis;    Biomass;   

DOI  :  10.15376/biores.12.1.1611-1623

来源: DOAJ

【 摘 要 】

Bio-oil as an important renewable energy product has been successfully made from corn stalks and lignin via a fast pyrolysis process. This study investigated the effects of alkali and alkaline earth metallic species (AAEMs) on phenolic products in corn stalk and lignin pyrolysis oil. Corn stalks were demineralized with 0.5 M HCl, and lignin was doped with 0.2wt%, 2wt%, and 20wt% KCl and CaCl2, respectively. The pyrolysis experiments were conducted in a fixed bed tubular furnace ranging from 450 °C to 600 °C. It was found that AAEMs exert positive effects on the formation of char and gas and inhibit the production of bio-oil. The effect of KCl on the product distribution from lignin is somewhat stronger than CaCl2. Moreover, the content of P, HP, GP, and SP decreases after removal of AAEMs. KCl can promote the polymerization of light molecular aromatic hydrocarbons to increase the SP yield at 600 °C, whereas the effect on increase in P and HP content is relatively weaker than CaCl2. KCl and CaCl2 play notable roles in demethxylation and demethoxylation in increasing phenol content and removing the R group from the ring.

【 授权许可】

Unknown