Biomass-to-liquids

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Bioenergy > Biofuels > Liquid biofuels > Biomass-to-liquids



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Biomass-to-liquids (BTL) refers to chemical processes that transform biomass into liquid fuels. This is usually distinguished from processes that use enzymes to create cellulosic ethanol or other fuels directly. While Biomass-to-liquids technologies include pyrolysis, the most common use of the term refers to the combination of gasification, which converts biomass into syngas. and the Fischer-Tropsch process, which can convert syngas into a range of products, including biodiesel, ethanol and others. One important difference from cellulosic ethanol technology is that BTL can potentially produce a range of synthetic liquid fuels and other products.[1]


Contents

Technology

Environment

The environmental impacts of producing BTL-fuels are dependent on the type of biomass input and the conversion efficiency in the process. The energy conversion efficiency might range from 26% to 69% depending on the process layout and the produced by-products. Using wastes or forest wood will allow producing BTL-fuels with lower environmental impacts and higher greenhouse gas savings than using energy crops like short-rotation wood or miscanthus (Source: Ökobilanzen zu BTL, LCA of BTL-fuels, LCA of using BTL-fuels in passenger cars and comparison with fossil fuels).

Companies

Weblinks

Reports


Types of bioenergy edit

Gases: Biopropane | Biogas | Synthetic natural gas | Syngas
Liquids: Biodiesel | Biobutanol | Biogasoline | Biokerosene | Biomass-to-Liquids (BTL) | Dimethyl ether (DME)
ETBE | Ethanol | Methanol | Pure plant oil (PPO) | Pyrolysis oil | Synthetic Natural Gas
Solids: Biomass pellets | Char/Charcoal | Wood


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