The main goal is to find the parameters to vary in other to prepare an carbon based heterogeneous catalyst coming from lignocellulosic biomass residues by doing a screening on transesterification reaction.
Do you refer to parameters of catalyst preparation? or support preparation?... Because I think you think use the activated carbon for support metal particles active in your reaction. In this case, the parameters more important are:
1. Activating reactant (acid or base?)
2. Activating reactant/biomass ratio.
3. Type of activation (physical or chemical?)
4. Temperature of carbonization.
Please see my paper over activated carbon preparation from biomass.