Pre-treatment of oil palm fronds biomass for gasification Shaharin Anwar Sulaiman, Nor Hazwani Mat Razali, Mohamad Nazmi Zaidi Bin Moni and Muddasser Inayat MATEC Web Conf., 131 (2017) 03016 Published online: 25 October 2017 DOI: 10.1051/matecconf/201713103016