Related by context. Frequent words. (Click for all words.) 71 biobutanol 58 bio ethanol 58 bioethanol 57 cellulosic 56 cellulosic ethanol 56 biodiesel 55 biofuel 53 methanol 53 cellulose 53 bio diesel 53 corn stover 53 ethanol 53 feedstocks 52 hydrogen 52 alcohols 52 glycerol 51 yeast 51 sweet sorghum 51 syngas 50 biomass 50 lignin 50 feedstock 50 esters 49 switchgrass 49 camelina 48 biofuels 48 bioplastics 48 hydrogenation 48 Methanol 48 olefins 48 fermentation 48 acetic acid 48 gasification 48 yeasts 48 jatropha 47 enzymes 47 amine 47 pyrolysis 47 microalgae 47 biorefinery 47 fatty acid 47 gasohol 47 cellulosic biofuels 47 biogas 47 fermented 47 glycerin 46 corn starch 46 acetaldehyde 46 bio fuels 46 gasifier 46 alternative fuels 46 Coskata 46 flavonoid 46 polymers 46 coal gasification 46 citric acid 46 biologically active 45 sulfur 45 alkali 45 enzyme 45 monomer 45 algal 45 CNTs 45 additive 45 distillers grains 45 biobased 45 biochar 45 soluble 45 safflower 44 amino acid 44 ammonium 44 nitric acid 44 monomers 44 ethyl alcohol 44 anaerobic digestion 44 surfactants 44 catalysis 44 propylene glycol 44 biorefineries 44 Jatropha 44 glycerine 44 renewable fuels 44 Biodiesel 44 algae 44 LS9 43 methyl tertiary butyl ether 43 enzymatic 43 cleaner burning 43 E# ethanol 43 microorganism 43 pectin 43 Biofuel 43 vegetable oils 43 sugars 43 internal combustion engines 43 boron 43 polymerization 42 zeolite 42 electrochemical 42 polyphenols 42 bioenergy