Nanchang University, State Key Laboratory of Food Science and Technology, Nanchang 330047, China; Nanchang University, Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang 330047, China.
Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Ave., St. Paul, MN 55108, United States.
Bioresour Technol. 2017 Feb;225:199-205. doi: 10.1016/j.biortech.2016.11.072. Epub 2016 Nov 19.
Fast microwave-assisted catalytic co-pyrolysis of lignin and low-density polyethylene (LDPE) with HZSM-5 and MgO was investigated. Effects of pyrolysis temperature, lignin to LDPE ratio, MgO to HZSM-5 ratio, and feedstock to catalyst ratio on the products yields and chemical profiles were examined. 500°C was the optimal co-pyrolysis temperature in terms of the maximum bio-oil yield. The proportion of aromatics increased with increasing LDPE content. In addition, with the addition of LDPE (lignin/LDPE=1/2), methoxyl group in the phenols was completely removed. A synergistic effect was found between lignin and LDPE. The proportion of aromatics increased and alkylated phenols decreased with increasing HZSM-5 to MgO ratio. The bio-oil yield increased with the addition of appropriate amount of catalyst and the proportion of alkylated phenols increased with increasing catalyst to feedstock ratio.
快速微波辅助催化共热解木质素和低密度聚乙烯（LDPE）与 HZSM-5 和 MgO 进行了研究。考察了热解温度、木质素与 LDPE 比例、MgO 与 HZSM-5 比例、原料与催化剂比例对产物产率和化学组成的影响。500°C 是最佳共热解温度，生物油产率最高。芳烃的比例随 LDPE 含量的增加而增加。此外，随着 LDPE 的添加（木质素/LDPE=1/2），酚类中的甲氧基基团被完全去除。木质素和 LDPE 之间存在协同作用。随着 HZSM-5 与 MgO 比例的增加，芳烃的比例增加，烷基酚的比例减少。随着催化剂用量的增加，生物油产率增加，随着催化剂与原料比例的增加，烷基酚的比例增加。
