Air gasification 1 Biomass 1 Catalysts 1 Catalytic cracking 1 Catalytic reforming 1 Free radicals 1 Gas-phase reactions 1 Gasification 1 High molecular weight hydrocarbons 1 Ion exchange 1 Nanotechnology 1 Nickel 1 Nickel compounds 1 Nickel containing 1 Oil palm 1 Oil palm biomass 1 Oil palm mesocarp fiber 1 Palm oil Phase interfaces 1 Reduction process 1 Syngas production 1 Synthesis gas 1 Synthesis gas manufacture 1 Tar 1