催化重整棕榈壳热解挥发分制备单环芳香化合物
Catalytic reforming of palm kernel shell pyrolysis volatile matter for single-ring aromatic compounds production
刘说 1安杨 2寇巍 1张莹莹2
作者信息
- 1. 营口理工学院 化学与环境工程学院,辽宁 营口 115014;辽宁省化学助剂合成与分离省市共建重点实验室,辽宁 营口 115014
- 2. 营口理工学院 化学与环境工程学院,辽宁 营口 115014
- 折叠
摘要
在微波辅助加热方式下,分别以半焦(Char)和活性炭(AC)为催化剂,对棕榈壳(PKS)热解挥发分进行催化重整,分析了不同催化剂对产物分布的影响,同时对反应过程中可能发生的反应路径进行分析.结果表明:在Char和AC的作用下,生物油产率减小,气体产物产率增加;与Char相比,AC具有显著的促使生物油向气体转化的催化活性,同时对单环芳香化合物(尤其苯酚)的形成具有更高的选择性;当AC作为催化剂时,单环芳香化合物的相对含量为84.25%;Char和AC催化剂主要促使了脱甲氧基、脱烃基等反应的发生.
Abstract
Catalytic reforming of palm kernel shell(PKS)pyrolysis volatile matter was studied using char(Char)and activated carbon(AC)as catalysts under microwave-assisted heating.The impacts of different carbon-based catalysts on the composition of products were studied.The possible reaction pathways during catalytic reforming of PKS pyrolysis volatile matter under microwave-assisted heating were also investigated.During catalytic reforming of pyrolysis volatile matter,the catalyst promoted the yield of gas product,which led to the decrease of bio-oil yield.Compared with the Char,AC not only has higher catalytic activity to facilitate the conversion of bio-oil to gas,but also exhibited better selectivity for the formation of single-ring aromatic compounds(especially phenol)in bio-oil.Using the AC catalyst,the concentrations of the single-ring aromatic compounds reached 84.25%.The catalyst mainly promoted the secondary reactions such as demethoxylation reaction and dehydrocarbylation reaction.
关键词
生物质热解/催化重整/炭基催化剂/微波辅助加热/单环芳香化合物Key words
biomass pyrolysis/catalytic reforming/carbon-based catalyst/microwave-assisted heating/single-ring aromatic compounds引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据