The provided files contain the segmented images (.png) used as input data for the TauFactor Matlab application to calculate the effective diffusivity as a function of the evolving porous geometry. The COMSOL Mulitphysic project file (.mph) contains the steady state simulation of the velocity and chemical components distribution inside the 3D microfluidic reactor. The velocity and component distribution profiles across the porous reaction chamber were extracted and given as .txt-files. Based on the simulated velocity and components distribution, the dimensionless Péclet and Reynolds number as well as the theoretical maximum saturation index (SI) were calculated (.xlsx). In addition, the Raman large area scans are given.