Related by context. Frequent words. (Click for all words.) 58 PRB coal 58 lignite coal 56 gaseous fuels 56 coal 55 gasified 55 feedstock 55 syngas 54 frac sand 54 flue gases 54 sub bituminous coal 53 renewable feedstocks 53 sulfur coal 53 productivities 52 SO2 emissions 52 bituminous coal 52 algae biomass 51 U GAS 51 petcoke 51 calorific value 51 BioOil 51 thermal coal 50 arc furnaces 50 adipic acid 50 electric arc furnaces 50 cathode copper 50 desulphurisation 49 coal seams 49 desorption 49 uprates 49 desulphurization 49 reciprocating engines 49 pelletizing 49 lignite 49 nitrogen oxide NOx 49 beneficiation plant 49 Ovoot Tolgoi 49 biomass 49 gasifiers 49 sulfur 48 mmscf d 48 grade ores 48 ferromanganese 48 rice husk 48 B# biodiesel [002] 48 ferro alloy 48 South Inkai 48 ethyl acetate 48 superheated steam 48 sludges 48 levelized cost 48 MMscfd 48 waste MSW 48 biomass feedstocks 48 tonnages 48 dewatered 48 Activated Carbon 47 gasification 47 natural gas 47 elemental sulfur 47 frac fluid 47 coal seam 47 CO2 sequestration 47 steam boilers 47 acid leach 47 Longannet 47 MgO 47 Syngas 47 gasify 47 petroleum coke 47 beneficiated 47 feedstocks 47 coal gasification 47 hydrocracking 47 #Mt [001] 46 liquified petroleum gas 46 #/MWh [002] 46 flotation circuit 46 Shouyang Block 46 stockpiled ore 46 circulating fluidized bed 46 spodumene 46 Bcm 46 oxide ore 46 heavy crudes 46 metallurgical coal 46 coalbed methane wells 46 reactants 46 overburden removal 46 electrowinning 46 sulphide ore 46 reinjection 46 bauxite ore 46 NYSE ANR 46 methane 46 purity silicon 46 Horizontal drilling 46 NOx reduction 46 lubricating oils 46 petro diesel 46 combustion gases 45 flue gas