Author/Authors :
FEI-LING, PUA Universiti Kebangsaan Malaysia - Faculty of Science and Technology - School of Applied Physics, Malaysia , CHIN-HUA, CHIA Universiti Kebangsaan Malaysia - Faculty of Science and Technology - School of Applied Physics, Malaysia , SARANI, ZAKARIA Universiti Kebangsaan Malaysia - Faculty of Science and Technology - School of Applied Physics, Malaysia , SOON-KEONG, NEOH Universiti Kebangsaan Malaysia - Faculty of Science and Technology - School of Applied Physics, Malaysia , TZE-KHONG, LIEW Universiti Kebangsaan Malaysia - Faculty of Science and Technology - School of Applied Physics, Malaysia
Abstract :
Solvolysis liquefaction of soda lignin in the presence of various transition metal sulfide catalysts was studied to investigate the catalyst effects on the oil and gas yields, conversion rate and higher heating value (HHV) of oil. Nanosized copper sulfide, iron sulfide and molybdenum sulfide were successfully synthesized via a simple hydrothermal method under reaction temperature 200°C for 90 min. The addition of transition metal sulfide based catalysts (CuS, MoS2 and FeS2) enhanced both production of the oils and gas and the higher heating value (HHV) of oil products. A high oil and gas yields of 82.1% and 2890 cm3 was obtained with MoS2 at 250°C for 60 min. Elemental analyses for the oils revealed that the liquid products have much higher heating values than the crude soda lignin powder.
Keywords :
Catalyst , higher heating value , hydrothermal , soda lignin , solvolysis liquefaction
