Related by context. Frequent words. (Click for all words.) 67 flue gas 66 gasifier 66 gasification 61 pyrolysis 61 biomass gasification 61 feedstock 60 biogas 60 Fischer Tropsch 60 biomass 59 cellulosic biomass 58 Gasification 58 feedstocks 57 petroleum coke 57 combustion 56 coal gasification 55 microturbine 55 anaerobic digestion 55 hydrolysis 54 biomethane 54 methanol 54 lignite coal 53 biobutanol 53 liquid fuels 53 cogeneration 53 supercritical 53 integrated gasification 52 glycerol 52 bagasse 52 silane 52 oxidizer 51 steam turbine 51 hydrogenation 51 Biogas 51 electric arc furnace 51 woody biomass 51 remove impurities 51 SOFC 51 synthetic fuels 51 anaerobic digesters 51 butanol 50 evaporator 50 corn stover 50 cellulosic 50 anaerobic digester 50 cellulose 50 exhaust gases 50 microturbines 50 esters 50 hydrogen 49 biomass boiler 49 boilers 49 sintering 49 electrolysis 49 Biomass 49 biodiesel 49 organic solvents 49 IGCC 49 crop residues 49 gases 49 briquettes 48 olefin 48 combustion turbines 48 bio diesel 48 biorefinery 48 cogeneration plant 48 heat exchangers 48 wood pellets 48 hydrometallurgical 48 desulfurization 48 byproducts 48 lignite 47 NOx 47 methane 47 digester 47 biomass fuels 47 PEM fuel 47 Feedstock 47 monomers 47 steam generator 47 formic acid 47 MOX fuel 47 sulfur 47 digesters 47 autoclave 47 ethylene oxide 47 steam turbines 46 propylene 46 Methanol 46 coke oven 46 hydrocarbon fuels 46 Enerkem 46 distillers grain 46 sulfuric acid 46 olefins 46 biobased 46 gaseous 46 hydrocracker 46 internal combustion engines 46 bioethanol 46 coal 46 pulverized coal