Technology: general issues 2 metallurgical coke 2nd generation sugars 1 31P NMR 1 Acacia tortilis 1 Bond work index 1 Cryptococcus curvatus 1 HSQC 1 History of engineering & technology 1 Kraft lignin 1 Lipomyces starkeyi 1 Marx generator 1 Mining technology & engineering 1 Napier grass 1 Penouta Mine 1 Sn-Ta-Nb 1 TGA 1 acid pretreatment 1 alkali pretreatment 1 ball mill 1 ball mills 1 bio-based reductant 1 bioeconomy 1 bioethanol 1 biofuel 1 biomass 1 biomass fractionation 1 biomimetic 1 biorefinery 1 bond work index 1