Engineers at Lancaster University have led research that discovers a way to generate renewable biofuel additives, using radiation that could be derived from nuclear waste. The renewable proportion of petrol is set to increase to 20 per cent over the coming years, meaning the discovery of a new production pathway for these additives could help in the fight to cut carbon dioxide emissions and tackle climate change. In the research paper entitled 'Nuclear-driven production of renewable fuel additives from waste organics', published in the journal Communications Chemistry, engineers propose a process to generate one such additive, solketal, using waste from both biochemical and nuclear industries—termed a nuclear biorefinery.
Reliable, low-carbon energy from nuclear or biofuels is integral to many strategies to reduce carbon emissions, however nuclear plants have high upfront costs and the manufacture of biodiesel produces waste glycerol, which has few secondary uses. Combining technologies to create raw materials from waste glycerol using ionizing radiation could diversify nuclear energy use, and also make a valuable use of biodiesel waste. Researchers have discovered that leftover energy from spent nuclear fuel can be harnessed to produce a short-lived, radiation-induced catalyst. This catalyst facilitates a reaction that produces both solketal and acetol. This process forgoes the requirement for costly and energy-intensive steps such as pH changes, high temperatures, high pressures or additional catalytic reagents with negligible ongoing radiation-processing costs once fully set up.
Solketal is an emerging fuel additive that increases fuel octane numbers and reduces gum formation, consequently preventing irregular fuel combustion (knocking) and engine efficiency losses while also lowering particulate emissions. Meanwhile, acetol can be used in the production of other useful chemicals such as propylene glycol and furan derivatives, or as a dyeing agent for textile manufacturing. Considering the scalability of this process to existing nuclear facilities within Europe (i.e. spent fuel pools or contemporary Pressurized Water Reactors), researchers have hypothesized that 104 tons per year of solketal could be generated by nuclear co-production. This would equate to significant quantities of usable fuel blend per year.
An increase of 5 per cent to 20 per cent v/v in the renewable proportion of commercial petroleum blends is forecast by 2030, and it was announced recently that E10 petrol will be adopted as the standard grade in the UK. Nuclear-driven, biomass-derived solketal could contribute in this context towards net-zero emissions targets, combining low-carbon co-generation and co-production.
https://techxplore.com/news/2021-09-renewable-biofuel-additives.html
Reliable, low-carbon energy from nuclear or biofuels is integral to many strategies to reduce carbon emissions, however nuclear plants have high upfront costs and the manufacture of biodiesel produces waste glycerol, which has few secondary uses. Combining technologies to create raw materials from waste glycerol using ionizing radiation could diversify nuclear energy use, and also make a valuable use of biodiesel waste. Researchers have discovered that leftover energy from spent nuclear fuel can be harnessed to produce a short-lived, radiation-induced catalyst. This catalyst facilitates a reaction that produces both solketal and acetol. This process forgoes the requirement for costly and energy-intensive steps such as pH changes, high temperatures, high pressures or additional catalytic reagents with negligible ongoing radiation-processing costs once fully set up.
Solketal is an emerging fuel additive that increases fuel octane numbers and reduces gum formation, consequently preventing irregular fuel combustion (knocking) and engine efficiency losses while also lowering particulate emissions. Meanwhile, acetol can be used in the production of other useful chemicals such as propylene glycol and furan derivatives, or as a dyeing agent for textile manufacturing. Considering the scalability of this process to existing nuclear facilities within Europe (i.e. spent fuel pools or contemporary Pressurized Water Reactors), researchers have hypothesized that 104 tons per year of solketal could be generated by nuclear co-production. This would equate to significant quantities of usable fuel blend per year.
An increase of 5 per cent to 20 per cent v/v in the renewable proportion of commercial petroleum blends is forecast by 2030, and it was announced recently that E10 petrol will be adopted as the standard grade in the UK. Nuclear-driven, biomass-derived solketal could contribute in this context towards net-zero emissions targets, combining low-carbon co-generation and co-production.
https://techxplore.com/news/2021-09-renewable-biofuel-additives.html
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