Reactive Boundary

I am working on making a reactive boundary condition by modifying one of the current general boundary conditions.

Here is the model setup:

Shan-Chen Multi-Component
Rectangular domain
-Inlet of component (reactant)
-Outlet of component (reactant and product)
-Reactive Boundary (Conversion of all reactant that reaches this boundary to the product)
-Bounce back BC for the rest

So my question is just if any one else has made this modification to Palabos and if so I would appreciate any pointers.