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- W3096598103 abstract "Isomerization and polymerization are two essential chemical processes that produce valuable chemicals and high quality fuels. However, they hardly occur at ambient conditions due to the activation energy barrier of multiple chemical reactions. Thermal activation of those reactions by catalysts or high temperature and pressure or both are very costly and emits a vast amount of greenhouse gases (GHG). Here, we show a greener method that uses electricity and high energy electrons to efficiently activate small molecules at ambient conditions. Activated fragments and radicals cross-link and produce larger and more valuable compounds without use of any catalysts. One small hydrocarbon (C5H12) was irradiated by a high energy electron beam at the liquid state. About 5% conversion, iso-paraffin (85%) and n-paraffin (15%), in a C6–C15 range was observed using 400 kJ/kg energy input (0.8% of pentane’s energy content). We propose that collisions between high energy electrons and small molecules at the liquid state create radicals very efficiently by nonselective cleavage of carbon–carbon and carbon–hydrogen bonds. Radicals then undergo random pairing reactions and selectively produce large branched species. The energy cost of this method is comparable with thermal methods. This method is electrical and easily adaptable to renewable energy sources with potentially zero GHG emissions." @default.
- W3096598103 created "2020-11-09" @default.
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- W3096598103 date "2020-11-03" @default.
- W3096598103 modified "2023-10-18" @default.
- W3096598103 title "Electrical Oligomerization of Small Hydrocarbons Activated by Collision with High Energy Electrons at Ambient Conditions" @default.
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- W3096598103 doi "https://doi.org/10.1021/acssuschemeng.0c05954" @default.
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