Torrefaction is an attractive pre-treatment route to enhance the fuel properties of oil palm biomass before their utilisation in thermochemical process. This work evaluates the effect of torrefaction on the gasification behaviours and kinetics of three oil palm biomass, i.e., EFB, MF, and PKS. Three well-known kinetics models, i.e., modified volume reaction model (MVRM), random pore model (RPM), and modified random pore model (MRPM) were used to correlate the conversion rate, $dX/dt$ versus the extent of conversion, $X$ data. The gasification reactivity generally increases in the order of PKS, MF, and EFB, which correlates with their inorganic minerals content. Torrefied oil palm biomass showed reduced gasification reactivity relative to their non-torrefied analogues due to the removal of volatile matters from biomass after torrefaction. Amongst the three kinetic models, MRPM best represents the gasification reactivity profile for all the three torrefied and non-torrefied oil palm biomass. The resultant apparent activation energies reveal: (i) Higher activation energies for the torrefied EFB and MF compared to their non-torrefied analogues, which is consistent with the lower reactivity for the former caused by the higher residual carbon content in the torrefied samples; (ii) Higher activation energy for non-torrefied PKS relative to that for torrefied PKS, which can be attributed to the formation of pores and cavities in the latter; and (iii) Lower activation energies values for the three oil palm biomass relative to the literature values, which is likely caused by the presence of potassium and calcium in these oil palm biomass.

烘烤是一种吸引人的预处理途径，可以在油棕生物质用于热化学工艺之前提高其油性。这项工作评估了焙干对三种油棕生物质（即EFB，MF和PKS）的气化行为和动力学的影响。三种著名的动力学模型，即改进的体积反应模型（MVRM），随机孔模型（RPM）和改进的随机孔模型（MRPM）用于关联转化率，$dX/dŤ$ 与转化程度相比， $X$数据。气化反应性通常以PKS，MF和EFB的顺序增加，这与其无机矿物质含量相关。相对于未烘焙的类似物，烘焙后的油棕生物量显示出降低的气化反应性，这是因为烘焙后从生物质中去除了挥发性物质。在这三种动力学模型中，MRPM最好地代表了所有三种烘焙和非烘焙油棕生物质的气化反应特性。由此产生的表观活化能表明：（i）与未焙烤的类似物相比，焙烤的EFB和MF的活化能更高，这与焙烤样品中残留碳含量较高引起的前者活性较低有关；（ii）与未烘焙的PKS相比，未烘焙的PKS的活化能更高，这可以归因于后者中的孔和腔的形成；（iii）三种油棕生物质的活化能值相对于文献值较低，这很可能是由于这些油棕生物质中存在钾和钙引起的。