Hydroformylation of pyrolysis oils to aldehydes and alcohols from polyolefin waste

• 成果类型: Article
• 署名作者: Li, Houqian; Wu, Jiayang; Jiang, Zhen; Ma, Jiaze; Zavala, Victor M.; Landis, Clark R.; Mavrikakis, Manos; Huber, George W.
• 署名单位: University of Wisconsin System; University of Wisconsin Madison; United States Department of Energy (DOE); Argonne National Laboratory; University of Wisconsin System; University of Wisconsin Madison
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-13121
• DOI: 10.1126/science.adh1853
• 发表日期: 2023-08-11
• 页码: 660-665
• 关键词: chemistry; ethylene; catalyst; liquids; biomass

摘要

Waste plastics are an abundant feedstock for the production of renewable chemicals. Pyrolysis of waste plastics produces pyrolysis oils with high concentrations of olefins (>50 weight %). The traditional petrochemical industry uses several energy-intensive steps to produce olefins from fossil feedstocks such as naphtha, natural gas, and crude oil. In this work, we demonstrate that pyrolysis oil can be used to produce aldehydes through hydroformylation, taking advantage of the olefin functionality. These aldehydes can then be reduced to mono- and dialcohols, oxidized to mono- and dicarboxylic acids, or aminated to mono- and diamines by using homogeneous and heterogeneous catalysis. This route produces high-value oxygenated chemicals from low-value postconsumer recycled polyethylene. We project that the chemicals produced by this route could lower greenhouse gas emissions similar to 60% compared with their production through petroleum feedstocks.